[bugfix] Downstep otel to fix freebsd compile issue (#1773)

https://github.com/open-telemetry/opentelemetry-go/issues/4076

go.mod

@@ -49,14 +49,14 @@ require (
 	github.com/uptrace/bun v1.1.13
 	github.com/uptrace/bun/dialect/pgdialect v1.1.13
 	github.com/uptrace/bun/dialect/sqlitedialect v1.1.13
-	github.com/uptrace/bun/extra/bunotel v1.1.13
+	github.com/uptrace/bun/extra/bunotel v1.1.12
 	github.com/wagslane/go-password-validator v0.3.0
 	github.com/yuin/goldmark v1.5.4
-	go.opentelemetry.io/otel v1.15.1
+	go.opentelemetry.io/otel v1.14.0
-	go.opentelemetry.io/otel/exporters/jaeger v1.15.1
+	go.opentelemetry.io/otel/exporters/jaeger v1.14.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.15.1
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.14.0
-	go.opentelemetry.io/otel/sdk v1.15.1
+	go.opentelemetry.io/otel/sdk v1.14.0
-	go.opentelemetry.io/otel/trace v1.15.1
+	go.opentelemetry.io/otel/trace v1.14.0
 	go.uber.org/automaxprocs v1.5.2
 	golang.org/x/crypto v0.8.0
 	golang.org/x/exp v0.0.0-20220613132600-b0d781184e0d
@@ -154,12 +154,12 @@ require (
 	github.com/tmthrgd/go-hex v0.0.0-20190904060850-447a3041c3bc // indirect
 	github.com/twitchyliquid64/golang-asm v0.15.1 // indirect
 	github.com/ugorji/go/codec v1.2.9 // indirect
-	github.com/uptrace/opentelemetry-go-extra/otelsql v0.2.0 // indirect
+	github.com/uptrace/opentelemetry-go-extra/otelsql v0.1.21 // indirect
 	github.com/vmihailenco/msgpack/v5 v5.3.5 // indirect
 	github.com/vmihailenco/tagparser/v2 v2.0.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.15.1 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.14.0 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.15.1 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.14.0 // indirect
-	go.opentelemetry.io/otel/metric v0.38.1 // indirect
+	go.opentelemetry.io/otel/metric v0.37.0 // indirect
 	go.opentelemetry.io/proto/otlp v0.19.0 // indirect
 	golang.org/x/arch v0.0.0-20210923205945-b76863e36670 // indirect
 	golang.org/x/mod v0.10.0 // indirect

go.sum

@@ -598,10 +598,10 @@ github.com/uptrace/bun/dialect/pgdialect v1.1.13 h1:j9BecpkRA9SDVBwh6oKhC5rABk4B
 github.com/uptrace/bun/dialect/pgdialect v1.1.13/go.mod h1:G9h6kk5qfTyACjTja7gqM7SbRc0rqRc9AWDjzxwA7nY=
 github.com/uptrace/bun/dialect/sqlitedialect v1.1.13 h1:ipYi26qS4xC9AVmArXqv4Rq+EJFtrsZfS+Ksqx21QVI=
 github.com/uptrace/bun/dialect/sqlitedialect v1.1.13/go.mod h1:pOUXT+1n1/cIJUwdq7w97NS6nA1kd01o8ZRWPy/JBMM=
-github.com/uptrace/bun/extra/bunotel v1.1.13 h1:QE0fNJpA+4mZi7cJXPDp5eQ3p5J/+tbwT0BRrXGFhhU=
+github.com/uptrace/bun/extra/bunotel v1.1.12 h1:uWPU75j9dYGXMRC9jF0ASlndZZAcngoqZagH4w3kn54=
-github.com/uptrace/bun/extra/bunotel v1.1.13/go.mod h1:ktwAHvvAlxy0G0z5Gl/HQDFOI7XOmWqbudDegdtZmfo=
+github.com/uptrace/bun/extra/bunotel v1.1.12/go.mod h1:QfszJGLzNaTTGvvg17cEEUyEwxXq2NJ7sRvrPYvYSIU=
-github.com/uptrace/opentelemetry-go-extra/otelsql v0.2.0 h1:7srBbziwY2NM8xtco+JMqsRu1FSvI1ZJn/eRtgcHtmg=
+github.com/uptrace/opentelemetry-go-extra/otelsql v0.1.21 h1:iHkIlTU2P3xbSbVJbAiHL9IT+ekYV5empheF+652yeQ=
-github.com/uptrace/opentelemetry-go-extra/otelsql v0.2.0/go.mod h1:OsbPyR3wEfyJVdlEaMLXBrBpIWkyxEb9iwDQcxkMkTI=
+github.com/uptrace/opentelemetry-go-extra/otelsql v0.1.21/go.mod h1:hiCFa1UeZITKXi8lhu2qwOD5LHXjdGMCUIQHbybxoF0=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.14.0/go.mod h1:ol1PCaL0dX20wC0htZ7sYCsvCYmrouYra0zHzaclZhE=
@@ -644,22 +644,22 @@ go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
-go.opentelemetry.io/otel v1.15.1 h1:3Iwq3lfRByPaws0f6bU3naAqOR1n5IeDWd9390kWHa8=
+go.opentelemetry.io/otel v1.14.0 h1:/79Huy8wbf5DnIPhemGB+zEPVwnN6fuQybr/SRXa6hM=
-go.opentelemetry.io/otel v1.15.1/go.mod h1:mHHGEHVDLal6YrKMmk9LqC4a3sF5g+fHfrttQIB1NTc=
+go.opentelemetry.io/otel v1.14.0/go.mod h1:o4buv+dJzx8rohcUeRmWUZhqupFvzWis188WlggnNeU=
-go.opentelemetry.io/otel/exporters/jaeger v1.15.1 h1:x3SLvwli0OyAJapNcOIzf1xXBRBA+HD3elrMQmFfmXo=
+go.opentelemetry.io/otel/exporters/jaeger v1.14.0 h1:CjbUNd4iN2hHmWekmOqZ+zSCU+dzZppG8XsV+A3oc8Q=
-go.opentelemetry.io/otel/exporters/jaeger v1.15.1/go.mod h1:0Ck9b5oLL/bFZvfAEEqtrb1U0jZXjm5fWXMCOCG3vvM=
+go.opentelemetry.io/otel/exporters/jaeger v1.14.0/go.mod h1:4Ay9kk5vELRrbg5z4cpP9EtmQRFap2Wb0woPG4lujZA=
-go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.15.1 h1:XYDQtNzdb2T4uM1pku2m76eSMDJgqhJ+6KzkqgQBALc=
+go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.14.0 h1:/fXHZHGvro6MVqV34fJzDhi7sHGpX3Ej/Qjmfn003ho=
-go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.15.1/go.mod h1:uOTV75+LOzV+ODmL8ahRLWkFA3eQcSC2aAsbxIu4duk=
+go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.14.0/go.mod h1:UFG7EBMRdXyFstOwH028U0sVf+AvukSGhF0g8+dmNG8=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.15.1 h1:tyoeaUh8REKay72DVYsSEBYV18+fGONe+YYPaOxgLoE=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.14.0 h1:TKf2uAs2ueguzLaxOCBXNpHxfO/aC7PAdDsSH0IbeRQ=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.15.1/go.mod h1:HUSnrjQQ19KX9ECjpQxufsF+3ioD3zISPMlauTPZu2g=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.14.0/go.mod h1:HrbCVv40OOLTABmOn1ZWty6CHXkU8DK/Urc43tHug70=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.15.1 h1:pIfoG5IAZFzp9EUlJzdSkpUwpaUAAnD+Ru1nBLTACIQ=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.14.0 h1:ap+y8RXX3Mu9apKVtOkM6WSFESLM8K3wNQyOU8sWHcc=
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.15.1/go.mod h1:poNKBqF5+nR/6ke2oGTDjHfksrsHDOHXAl2g4+9ONsY=
+go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.14.0/go.mod h1:5w41DY6S9gZrbjuq6Y+753e96WfPha5IcsOSZTtullM=
-go.opentelemetry.io/otel/metric v0.38.1 h1:2MM7m6wPw9B8Qv8iHygoAgkbejed59uUR6ezR5T3X2s=
+go.opentelemetry.io/otel/metric v0.37.0 h1:pHDQuLQOZwYD+Km0eb657A25NaRzy0a+eLyKfDXedEs=
-go.opentelemetry.io/otel/metric v0.38.1/go.mod h1:FwqNHD3I/5iX9pfrRGZIlYICrJv0rHEUl2Ln5vdIVnQ=
+go.opentelemetry.io/otel/metric v0.37.0/go.mod h1:DmdaHfGt54iV6UKxsV9slj2bBRJcKC1B1uvDLIioc1s=
-go.opentelemetry.io/otel/sdk v1.15.1 h1:5FKR+skgpzvhPQHIEfcwMYjCBr14LWzs3uSqKiQzETI=
+go.opentelemetry.io/otel/sdk v1.14.0 h1:PDCppFRDq8A1jL9v6KMI6dYesaq+DFcDZvjsoGvxGzY=
-go.opentelemetry.io/otel/sdk v1.15.1/go.mod h1:8rVtxQfrbmbHKfqzpQkT5EzZMcbMBwTzNAggbEAM0KA=
+go.opentelemetry.io/otel/sdk v1.14.0/go.mod h1:bwIC5TjrNG6QDCHNWvW4HLHtUQ4I+VQDsnjhvyZCALM=
-go.opentelemetry.io/otel/trace v1.15.1 h1:uXLo6iHJEzDfrNC0L0mNjItIp06SyaBQxu5t3xMlngY=
+go.opentelemetry.io/otel/trace v1.14.0 h1:wp2Mmvj41tDsyAJXiWDWpfNsOiIyd38fy85pyKcFq/M=
-go.opentelemetry.io/otel/trace v1.15.1/go.mod h1:IWdQG/5N1x7f6YUlmdLeJvH9yxtuJAfc4VW5Agv9r/8=
+go.opentelemetry.io/otel/trace v1.14.0/go.mod h1:8avnQLK+CG77yNLUae4ea2JDQ6iT+gozhnZjy/rw9G8=
 go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI=
 go.opentelemetry.io/proto/otlp v0.19.0 h1:IVN6GR+mhC4s5yfcTbmzHYODqvWAp3ZedA2SJPI1Nnw=
 go.opentelemetry.io/proto/otlp v0.19.0/go.mod h1:H7XAot3MsfNsj7EXtrA2q5xSNQ10UqI405h3+duxN4U=

vendor/github.com/uptrace/bun/extra/bunotel/otel.go

@@ -10,7 +10,6 @@
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/codes"
-	"go.opentelemetry.io/otel/metric"
 	"go.opentelemetry.io/otel/metric/global"
 	"go.opentelemetry.io/otel/metric/instrument"
 	semconv "go.opentelemetry.io/otel/semconv/v1.12.0"
@@ -76,8 +75,7 @@ func (h *QueryHook) AfterQuery(ctx context.Context, event *bun.QueryEvent) {
 		}
 	}
 
-	dur := time.Since(event.StartTime)
+	queryHistogram.Record(ctx, time.Since(event.StartTime).Milliseconds(), labels...)
-	queryHistogram.Record(ctx, dur.Milliseconds(), metric.WithAttributes(labels...))
 
 	span := trace.SpanFromContext(ctx)
 	if !span.IsRecording() {

vendor/github.com/uptrace/opentelemetry-go-extra/otelsql/otel.go

@@ -12,6 +12,7 @@
 	"go.opentelemetry.io/otel/codes"
 	"go.opentelemetry.io/otel/metric"
 	"go.opentelemetry.io/otel/metric/global"
+	"go.opentelemetry.io/otel/metric/instrument"
 	semconv "go.opentelemetry.io/otel/semconv/v1.10.0"
 	"go.opentelemetry.io/otel/trace"
 )
@@ -53,7 +54,7 @@ func (c *config) formatQuery(query string) string {
 type dbInstrum struct {
 	*config
 
-	queryHistogram metric.Int64Histogram
+	queryHistogram instrument.Int64Histogram
 }
 
 func newDBInstrum(opts []Option) *dbInstrum {
@@ -71,8 +72,8 @@ func newDBInstrum(opts []Option) *dbInstrum {
 	var err error
 	t.queryHistogram, err = t.meter.Int64Histogram(
 		"go.sql.query_timing",
-		metric.WithDescription("Timing of processed queries"),
+		instrument.WithDescription("Timing of processed queries"),
-		metric.WithUnit("milliseconds"),
+		instrument.WithUnit("milliseconds"),
 	)
 	if err != nil {
 		panic(err)
@@ -105,7 +106,7 @@ func (t *dbInstrum) withSpan(
 	span.End()
 
 	if query != "" {
-		t.queryHistogram.Record(ctx, time.Since(startTime).Milliseconds(), metric.WithAttributes(t.attrs...))
+		t.queryHistogram.Record(ctx, time.Since(startTime).Milliseconds(), t.attrs...)
 	}
 
 	if !span.IsRecording() {
@@ -184,57 +185,57 @@ func ReportDBStatsMetrics(db *sql.DB, opts ...Option) {
 
 	maxOpenConns, _ := meter.Int64ObservableGauge(
 		"go.sql.connections_max_open",
-		metric.WithDescription("Maximum number of open connections to the database"),
+		instrument.WithDescription("Maximum number of open connections to the database"),
 	)
 	openConns, _ := meter.Int64ObservableGauge(
 		"go.sql.connections_open",
-		metric.WithDescription("The number of established connections both in use and idle"),
+		instrument.WithDescription("The number of established connections both in use and idle"),
 	)
 	inUseConns, _ := meter.Int64ObservableGauge(
 		"go.sql.connections_in_use",
-		metric.WithDescription("The number of connections currently in use"),
+		instrument.WithDescription("The number of connections currently in use"),
 	)
 	idleConns, _ := meter.Int64ObservableGauge(
 		"go.sql.connections_idle",
-		metric.WithDescription("The number of idle connections"),
+		instrument.WithDescription("The number of idle connections"),
 	)
 	connsWaitCount, _ := meter.Int64ObservableCounter(
 		"go.sql.connections_wait_count",
-		metric.WithDescription("The total number of connections waited for"),
+		instrument.WithDescription("The total number of connections waited for"),
 	)
 	connsWaitDuration, _ := meter.Int64ObservableCounter(
 		"go.sql.connections_wait_duration",
-		metric.WithDescription("The total time blocked waiting for a new connection"),
+		instrument.WithDescription("The total time blocked waiting for a new connection"),
-		metric.WithUnit("nanoseconds"),
+		instrument.WithUnit("nanoseconds"),
 	)
 	connsClosedMaxIdle, _ := meter.Int64ObservableCounter(
 		"go.sql.connections_closed_max_idle",
-		metric.WithDescription("The total number of connections closed due to SetMaxIdleConns"),
+		instrument.WithDescription("The total number of connections closed due to SetMaxIdleConns"),
 	)
 	connsClosedMaxIdleTime, _ := meter.Int64ObservableCounter(
 		"go.sql.connections_closed_max_idle_time",
-		metric.WithDescription("The total number of connections closed due to SetConnMaxIdleTime"),
+		instrument.WithDescription("The total number of connections closed due to SetConnMaxIdleTime"),
 	)
 	connsClosedMaxLifetime, _ := meter.Int64ObservableCounter(
 		"go.sql.connections_closed_max_lifetime",
-		metric.WithDescription("The total number of connections closed due to SetConnMaxLifetime"),
+		instrument.WithDescription("The total number of connections closed due to SetConnMaxLifetime"),
 	)
 
 	if _, err := meter.RegisterCallback(
 		func(ctx context.Context, o metric.Observer) error {
 			stats := db.Stats()
 
-			o.ObserveInt64(maxOpenConns, int64(stats.MaxOpenConnections), metric.WithAttributes(labels...))
+			o.ObserveInt64(maxOpenConns, int64(stats.MaxOpenConnections), labels...)
 
-			o.ObserveInt64(openConns, int64(stats.OpenConnections), metric.WithAttributes(labels...))
+			o.ObserveInt64(openConns, int64(stats.OpenConnections), labels...)
-			o.ObserveInt64(inUseConns, int64(stats.InUse), metric.WithAttributes(labels...))
+			o.ObserveInt64(inUseConns, int64(stats.InUse), labels...)
-			o.ObserveInt64(idleConns, int64(stats.Idle), metric.WithAttributes(labels...))
+			o.ObserveInt64(idleConns, int64(stats.Idle), labels...)
 
-			o.ObserveInt64(connsWaitCount, stats.WaitCount, metric.WithAttributes(labels...))
+			o.ObserveInt64(connsWaitCount, stats.WaitCount, labels...)
-			o.ObserveInt64(connsWaitDuration, int64(stats.WaitDuration), metric.WithAttributes(labels...))
+			o.ObserveInt64(connsWaitDuration, int64(stats.WaitDuration), labels...)
-			o.ObserveInt64(connsClosedMaxIdle, stats.MaxIdleClosed, metric.WithAttributes(labels...))
+			o.ObserveInt64(connsClosedMaxIdle, stats.MaxIdleClosed, labels...)
-			o.ObserveInt64(connsClosedMaxIdleTime, stats.MaxIdleTimeClosed, metric.WithAttributes(labels...))
+			o.ObserveInt64(connsClosedMaxIdleTime, stats.MaxIdleTimeClosed, labels...)
-			o.ObserveInt64(connsClosedMaxLifetime, stats.MaxLifetimeClosed, metric.WithAttributes(labels...))
+			o.ObserveInt64(connsClosedMaxLifetime, stats.MaxLifetimeClosed, labels...)
 
 			return nil
 		},

vendor/github.com/uptrace/opentelemetry-go-extra/otelsql/version.go

@@ -2,5 +2,5 @@
 
 // Version is the current release version.
 func Version() string {
-	return "0.2.0"
+	return "0.1.21"
 }

vendor/go.opentelemetry.io/otel/.gitignore

@@ -7,8 +7,6 @@ Thumbs.db
 *.iml
 *.so
 coverage.*
-go.work
-go.work.sum
 
 gen/
 

vendor/go.opentelemetry.io/otel/.golangci.yml

@@ -85,8 +85,6 @@ linters-settings:
           - "**/internal/matchers/*.go"
   godot:
     exclude:
-      # Exclude links.
-      - '^ *\[[^]]+\]:'
       # Exclude sentence fragments for lists.
       - '^[ ]*[-•]'
       # Exclude sentences prefixing a list.

vendor/go.opentelemetry.io/otel/CHANGELOG.md

@@ -8,147 +8,6 @@ This project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.htm
 
 ## [Unreleased]
 
-## [1.15.1/0.38.1] 2023-05-02
-
-### Fixed
-
-- Remove unused imports from `sdk/resource/host_id_bsd.go` which caused build failures. (#4040, #4041)
-
-## [1.15.0/0.38.0] 2023-04-27
-
-### Added
-
-- The `go.opentelemetry.io/otel/metric/embedded` package. (#3916)
-- The `Version` function to `go.opentelemetry.io/otel/sdk` to return the SDK version. (#3949)
-- Add a `WithNamespace` option to `go.opentelemetry.io/otel/exporters/prometheus` to allow users to prefix metrics with a namespace. (#3970)
-- The following configuration types were added to `go.opentelemetry.io/otel/metric/instrument` to be used in the configuration of measurement methods. (#3971)
-  - The `AddConfig` used to hold configuration for addition measurements
-    - `NewAddConfig` used to create a new `AddConfig`
-    - `AddOption` used to configure an `AddConfig`
-  - The `RecordConfig` used to hold configuration for recorded measurements
-    - `NewRecordConfig` used to create a new `RecordConfig`
-    - `RecordOption` used to configure a `RecordConfig`
-  - The `ObserveConfig` used to hold configuration for observed measurements
-    - `NewObserveConfig` used to create a new `ObserveConfig`
-    - `ObserveOption` used to configure an `ObserveConfig`
-- `WithAttributeSet` and `WithAttributes` are added to `go.opentelemetry.io/otel/metric/instrument`.
-  They return an option used during a measurement that defines the attribute Set associated with the measurement. (#3971)
-- The `Version` function to `go.opentelemetry.io/otel/exporters/otlp/otlpmetric` to return the OTLP metrics client version. (#3956)
-- The `Version` function to `go.opentelemetry.io/otel/exporters/otlp/otlptrace` to return the OTLP trace client version. (#3956)
-
-### Changed
-
-- The `Extrema` in `go.opentelemetry.io/otel/sdk/metric/metricdata` is redefined with a generic argument of `[N int64 | float64]`. (#3870)
-- Update all exported interfaces from `go.opentelemetry.io/otel/metric` to embed their corresponding interface from `go.opentelemetry.io/otel/metric/embedded`.
-  This adds an implementation requirement to set the interface default behavior for unimplemented methods. (#3916)
-- Move No-Op implementation from `go.opentelemetry.io/otel/metric` into its own package `go.opentelemetry.io/otel/metric/noop`. (#3941)
-  - `metric.NewNoopMeterProvider` is replaced with `noop.NewMeterProvider`
-- Add all the methods from `"go.opentelemetry.io/otel/trace".SpanContext` to `bridgeSpanContext` by embedding `otel.SpanContext` in `bridgeSpanContext`. (#3966)
-- Wrap `UploadMetrics` error in `go.opentelemetry.io/otel/exporters/otlp/otlpmetric/` to improve error message when encountering generic grpc errors. (#3974)
-- The measurement methods for all instruments in `go.opentelemetry.io/otel/metric/instrument` accept an option instead of the variadic `"go.opentelemetry.io/otel/attribute".KeyValue`. (#3971)
-  - The `Int64Counter.Add` method now accepts `...AddOption`
-  - The `Float64Counter.Add` method now accepts `...AddOption`
-  - The `Int64UpDownCounter.Add` method now accepts `...AddOption`
-  - The `Float64UpDownCounter.Add` method now accepts `...AddOption`
-  - The `Int64Histogram.Record` method now accepts `...RecordOption`
-  - The `Float64Histogram.Record` method now accepts `...RecordOption`
-  - The `Int64Observer.Observe` method now accepts `...ObserveOption`
-  - The `Float64Observer.Observe` method now accepts `...ObserveOption`
-- The `Observer` methods in `go.opentelemetry.io/otel/metric` accept an option instead of the variadic `"go.opentelemetry.io/otel/attribute".KeyValue`. (#3971)
-  - The `Observer.ObserveInt64` method now accepts `...ObserveOption`
-  - The `Observer.ObserveFloat64` method now accepts `...ObserveOption`
-- Move global metric back to `go.opentelemetry.io/otel/metric/global` from `go.opentelemetry.io/otel`. (#3986)
-
-### Fixed
-
-- `TracerProvider` allows calling `Tracer()` while it's shutting down.
-  It used to deadlock. (#3924)
-- Use the SDK version for the Telemetry SDK resource detector in `go.opentelemetry.io/otel/sdk/resource`. (#3949)
-- Fix a data race in `SpanProcessor` returned by `NewSimpleSpanProcessor` in `go.opentelemetry.io/otel/sdk/trace`. (#3951)
-- Automatically figure out the default aggregation with `aggregation.Default`. (#3967)
-
-### Deprecated
-
-- The `go.opentelemetry.io/otel/metric/instrument` package is deprecated.
-  Use the equivalent types added to `go.opentelemetry.io/otel/metric` instead. (#4018)
-
-## [1.15.0-rc.2/0.38.0-rc.2] 2023-03-23
-
-This is a release candidate for the v1.15.0/v0.38.0 release.
-That release will include the `v1` release of the OpenTelemetry Go metric API and will provide stability guarantees of that API.
-See our [versioning policy](VERSIONING.md) for more information about these stability guarantees.
-
-### Added
-
-- The `WithHostID` option to `go.opentelemetry.io/otel/sdk/resource`. (#3812)
-- The `WithoutTimestamps` option to `go.opentelemetry.io/otel/exporters/stdout/stdoutmetric` to sets all timestamps to zero. (#3828)
-- The new `Exemplar` type is added to `go.opentelemetry.io/otel/sdk/metric/metricdata`.
-  Both the `DataPoint` and `HistogramDataPoint` types from that package have a new field of `Exemplars` containing the sampled exemplars for their timeseries. (#3849)
-- Configuration for each metric instrument in `go.opentelemetry.io/otel/sdk/metric/instrument`. (#3895)
-- The internal logging introduces a warning level verbosity equal to `V(1)`. (#3900)
-- Added a log message warning about usage of `SimpleSpanProcessor` in production environments. (#3854)
-
-### Changed
-
-- Optimize memory allocation when creation a new `Set` using `NewSet` or `NewSetWithFiltered` in `go.opentelemetry.io/otel/attribute`. (#3832)
-- Optimize memory allocation when creation new metric instruments in `go.opentelemetry.io/otel/sdk/metric`. (#3832)
-- Avoid creating new objects on all calls to `WithDeferredSetup` and `SkipContextSetup` in OpenTracing bridge. (#3833)
-- The `New` and `Detect` functions from `go.opentelemetry.io/otel/sdk/resource` return errors that wrap underlying errors instead of just containing the underlying error strings. (#3844)
-- Both the `Histogram` and `HistogramDataPoint` are redefined with a generic argument of `[N int64 | float64]` in `go.opentelemetry.io/otel/sdk/metric/metricdata`. (#3849)
-- The metric `Export` interface from `go.opentelemetry.io/otel/sdk/metric` accepts a `*ResourceMetrics` instead of `ResourceMetrics`. (#3853)
-- Rename `Asynchronous` to `Observable` in `go.opentelemetry.io/otel/metric/instrument`. (#3892)
-- Rename `Int64ObserverOption` to `Int64ObservableOption` in `go.opentelemetry.io/otel/metric/instrument`. (#3895)
-- Rename `Float64ObserverOption` to `Float64ObservableOption` in `go.opentelemetry.io/otel/metric/instrument`. (#3895)
-- The internal logging changes the verbosity level of info to `V(4)`, the verbosity level of debug to `V(8)`. (#3900)
-
-### Fixed
-
-- `TracerProvider` consistently doesn't allow to register a `SpanProcessor` after shutdown. (#3845)
-
-### Removed
-
-- The deprecated `go.opentelemetry.io/otel/metric/global` package is removed. (#3829)
-- The unneeded `Synchronous` interface in `go.opentelemetry.io/otel/metric/instrument` was removed. (#3892)
-- The `Float64ObserverConfig` and `NewFloat64ObserverConfig` in `go.opentelemetry.io/otel/sdk/metric/instrument`.
-  Use the added `float64` instrument configuration instead. (#3895)
-- The `Int64ObserverConfig` and `NewInt64ObserverConfig` in `go.opentelemetry.io/otel/sdk/metric/instrument`.
-  Use the added `int64` instrument configuration instead. (#3895)
-- The `NewNoopMeter` function in `go.opentelemetry.io/otel/metric`, use `NewMeterProvider().Meter("")` instead. (#3893)
-
-## [1.15.0-rc.1/0.38.0-rc.1] 2023-03-01
-
-This is a release candidate for the v1.15.0/v0.38.0 release.
-That release will include the `v1` release of the OpenTelemetry Go metric API and will provide stability guarantees of that API.
-See our [versioning policy](VERSIONING.md) for more information about these stability guarantees.
-
-This release drops the compatibility guarantee of [Go 1.18].
-
-### Added
-
-- Support global `MeterProvider` in `go.opentelemetry.io/otel`. (#3818)
-  - Use `Meter` for a `metric.Meter` from the global `metric.MeterProvider`.
-  - Use `GetMeterProivder` for a global `metric.MeterProvider`.
-  - Use `SetMeterProivder` to set the global `metric.MeterProvider`.
-
-### Changed
-
-- Dropped compatibility testing for [Go 1.18].
-  The project no longer guarantees support for this version of Go. (#3813)
-
-### Fixed
-
-- Handle empty environment variable as it they were not set. (#3764)
-- Clarify the `httpconv` and `netconv` packages in `go.opentelemetry.io/otel/semconv/*` provide tracing semantic conventions. (#3823)
-
-### Deprecated
-
-- The `go.opentelemetry.io/otel/metric/global` package is deprecated.
-  Use `go.opentelemetry.io/otel` instead. (#3818)
-
-### Removed
-
-- The deprecated `go.opentelemetry.io/otel/metric/unit` package is removed. (#3814)
-
 ## [1.14.0/0.37.0/0.0.4] 2023-02-27
 
 This release is the last to support [Go 1.18].
@@ -262,7 +121,7 @@ The next release will require at least [Go 1.19].
 - The `go.opentelemetry.io/otel/semconv/v1.16.0` package.
   The package contains semantic conventions from the `v1.16.0` version of the OpenTelemetry specification. (#3579)
 - Metric instruments to `go.opentelemetry.io/otel/metric/instrument`.
-  These instruments are use as replacements of the deprecated `go.opentelemetry.io/otel/metric/instrument/{asyncfloat64,asyncint64,syncfloat64,syncint64}` packages.(#3575, #3586)
+  These instruments are use as replacements of the depreacted `go.opentelemetry.io/otel/metric/instrument/{asyncfloat64,asyncint64,syncfloat64,syncint64}` packages.(#3575, #3586)
   - `Float64ObservableCounter` replaces the `asyncfloat64.Counter`
   - `Float64ObservableUpDownCounter` replaces the `asyncfloat64.UpDownCounter`
   - `Float64ObservableGauge` replaces the `asyncfloat64.Gauge`
@@ -285,7 +144,7 @@ The next release will require at least [Go 1.19].
 ### Changed
 
 - Jaeger and Zipkin exporter use `github.com/go-logr/logr` as the logging interface, and add the `WithLogr` option. (#3497, #3500)
-- Instrument configuration in `go.opentelemetry.io/otel/metric/instrument` is split into specific options and configuration based on the instrument type. (#3507)
+- Instrument configuration in `go.opentelemetry.io/otel/metric/instrument` is split into specific options and confguration based on the instrument type. (#3507)
   - Use the added `Int64Option` type to configure instruments from `go.opentelemetry.io/otel/metric/instrument/syncint64`.
   - Use the added `Float64Option` type to configure instruments from `go.opentelemetry.io/otel/metric/instrument/syncfloat64`.
   - Use the added `Int64ObserverOption` type to configure instruments from `go.opentelemetry.io/otel/metric/instrument/asyncint64`.
@@ -298,7 +157,7 @@ The next release will require at least [Go 1.19].
 - The `Shutdown` method of the `"go.opentelemetry.io/otel/sdk/trace".TracerProvider` releases all computational resources when called the first time. (#3551)
 - The `Sampler` returned from `TraceIDRatioBased` `go.opentelemetry.io/otel/sdk/trace` now uses the rightmost bits for sampling decisions.
   This fixes random sampling when using ID generators like `xray.IDGenerator` and increasing parity with other language implementations. (#3557)
-- Errors from `go.opentelemetry.io/otel/exporters/otlp/otlptrace` exporters are wrapped in errors identifying their signal name.
+- Errors from `go.opentelemetry.io/otel/exporters/otlp/otlptrace` exporters are wrapped in erros identifying their signal name.
   Existing users of the exporters attempting to identify specific errors will need to use `errors.Unwrap()` to get the underlying error. (#3516)
 - Exporters from `go.opentelemetry.io/otel/exporters/otlp` will print the final retryable error message when attempts to retry time out. (#3514)
 - The instrument kind names in `go.opentelemetry.io/otel/sdk/metric` are updated to match the API. (#3562)
@@ -407,7 +266,7 @@ The next release will require at least [Go 1.19].
 - Asynchronous counters (`Counter` and `UpDownCounter`) from the metric SDK now produce delta sums when configured with delta temporality. (#3398)
 - Exported `Status` codes in the `go.opentelemetry.io/otel/exporters/zipkin` exporter are now exported as all upper case values. (#3340)
 - `Aggregation`s from `go.opentelemetry.io/otel/sdk/metric` with no data are not exported. (#3394, #3436)
-- Re-enabled Attribute Filters in the Metric SDK. (#3396)
+- Reenabled Attribute Filters in the Metric SDK. (#3396)
 - Asynchronous callbacks are only called if they are registered with at least one instrument that does not use drop aggragation. (#3408)
 - Do not report empty partial-success responses in the `go.opentelemetry.io/otel/exporters/otlp` exporters. (#3438, #3432)
 - Handle partial success responses in `go.opentelemetry.io/otel/exporters/otlp/otlpmetric` exporters. (#3162, #3440)
@@ -988,7 +847,7 @@ This release includes an API and SDK for the tracing signal that will comply wit
 - Setting the global `ErrorHandler` with `"go.opentelemetry.io/otel".SetErrorHandler` multiple times is now supported. (#2160, #2140)
 - The `"go.opentelemetry.io/otel/attribute".Any` function now supports `int32` values. (#2169)
 - Multiple calls to `"go.opentelemetry.io/otel/sdk/metric/controller/basic".WithResource()` are handled correctly, and when no resources are provided `"go.opentelemetry.io/otel/sdk/resource".Default()` is used. (#2120)
-- The `WithoutTimestamps` option for the `go.opentelemetry.io/otel/exporters/stdout/stdouttrace` exporter causes the exporter to correctly omit timestamps. (#2195)
+- The `WithoutTimestamps` option for the `go.opentelemetry.io/otel/exporters/stdout/stdouttrace` exporter causes the exporter to correctly ommit timestamps. (#2195)
 - Fixed typos in resources.go. (#2201)
 
 ## [1.0.0-RC2] - 2021-07-26
@@ -1434,7 +1293,7 @@ with major version 0.
 - `NewGRPCDriver` function returns a `ProtocolDriver` that maintains a single gRPC connection to the collector. (#1369)
 - Added documentation about the project's versioning policy. (#1388)
 - Added `NewSplitDriver` for OTLP exporter that allows sending traces and metrics to different endpoints. (#1418)
-- Added codeql workflow to GitHub Actions (#1428)
+- Added codeql worfklow to GitHub Actions (#1428)
 - Added Gosec workflow to GitHub Actions (#1429)
 - Add new HTTP driver for OTLP exporter in `exporters/otlp/otlphttp`. Currently it only supports the binary protobuf payloads. (#1420)
 - Add an OpenCensus exporter bridge. (#1444)
@@ -2277,7 +2136,7 @@ There is still a possibility of breaking changes.
 
 ### Fixed
 
-- Use stateful batcher on Prometheus exporter fixing regression introduced in #395. (#428)
+- Use stateful batcher on Prometheus exporter fixing regresion introduced in #395. (#428)
 
 ## [0.2.1] - 2020-01-08
 
@@ -2443,11 +2302,7 @@ It contains api and sdk for trace and meter.
 - CircleCI build CI manifest files.
 - CODEOWNERS file to track owners of this project.
 
-[Unreleased]: https://github.com/open-telemetry/opentelemetry-go/compare/v1.15.1...HEAD
+[Unreleased]: https://github.com/open-telemetry/opentelemetry-go/compare/v1.14.0...HEAD
-[1.15.1/0.38.1]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.15.1
-[1.15.0/0.38.0]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.15.0
-[1.15.0-rc.2/0.38.0-rc.2]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.15.0-rc.2
-[1.15.0-rc.1/0.38.0-rc.1]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.15.0-rc.1
 [1.14.0/0.37.0/0.0.4]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.14.0
 [1.13.0/0.36.0]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.13.0
 [1.12.0/0.35.0]: https://github.com/open-telemetry/opentelemetry-go/releases/tag/v1.12.0

vendor/go.opentelemetry.io/otel/CODEOWNERS

@@ -12,6 +12,6 @@
 #  https://help.github.com/en/articles/about-code-owners
 #
 
-* @MrAlias @Aneurysm9 @evantorrie @XSAM @dashpole @MadVikingGod @pellared @hanyuancheung @dmathieu
+* @jmacd @MrAlias @Aneurysm9 @evantorrie @XSAM @dashpole @MadVikingGod @pellared @hanyuancheung @dmathieu
 
 CODEOWNERS @MrAlias @Aneurysm9 @MadVikingGod

vendor/go.opentelemetry.io/otel/CONTRIBUTING.md

@@ -6,7 +6,7 @@ OpenTelemetry
 repo for information on this and other language SIGs.
 
 See the [public meeting
-notes](https://docs.google.com/document/d/1E5e7Ld0NuU1iVvf-42tOBpu2VBBLYnh73GJuITGJTTU/edit)
+notes](https://docs.google.com/document/d/1A63zSWX0x2CyCK_LoNhmQC4rqhLpYXJzXbEPDUQ2n6w/edit#heading=h.9tngw7jdwd6b)
 for a summary description of past meetings. To request edit access,
 join the meeting or get in touch on
 [Slack](https://cloud-native.slack.com/archives/C01NPAXACKT).
@@ -94,58 +94,30 @@ request ID to the entry you added to `CHANGELOG.md`.
 
 ### How to Get PRs Merged
 
-A PR is considered **ready to merge** when:
+A PR is considered to be **ready to merge** when:
 
-* It has received two qualified approvals[^1].
+* It has received two approvals from Collaborators/Maintainers (at
+  different companies). This is not enforced through technical means
+  and a PR may be **ready to merge** with a single approval if the change
+  and its approach have been discussed and consensus reached.
+* Feedback has been addressed.
+* Any substantive changes to your PR will require that you clear any prior
+  Approval reviews, this includes changes resulting from other feedback. Unless
+  the approver explicitly stated that their approval will persist across
+  changes it should be assumed that the PR needs their review again. Other
+  project members (e.g. approvers, maintainers) can help with this if there are
+  any questions or if you forget to clear reviews.
+* It has been open for review for at least one working day. This gives
+  people reasonable time to review.
+* Trivial changes (typo, cosmetic, doc, etc.) do not have to wait for
+  one day and may be merged with a single Maintainer's approval.
+* `CHANGELOG.md` has been updated to reflect what has been
+  added, changed, removed, or fixed.
+* `README.md` has been updated if necessary.
+* Urgent fix can take exception as long as it has been actively
+  communicated.
 
-  This is not enforced through automation, but needs to be validated by the
+Any Maintainer can merge the PR once it is **ready to merge**.
-  maintainer merging.
-  * The qualified approvals need to be from [Approver]s/[Maintainer]s
-    affiliated with different companies. Two qualified approvals from
-    [Approver]s or [Maintainer]s affiliated with the same company counts as a
-    single qualified approval.
-  * PRs introducing changes that have already been discussed and consensus
-    reached only need one qualified approval. The discussion and resolution
-    needs to be linked to the PR.
-  * Trivial changes[^2] only need one qualified approval.
-
-* All feedback has been addressed.
-  * All PR comments and suggestions are resolved.
-  * All GitHub Pull Request reviews with a status of "Request changes" have
-    been addressed. Another review by the objecting reviewer with a different
-    status can be submitted to clear the original review, or the review can be
-    dismissed by a [Maintainer] when the issues from the original review have
-    been addressed.
-  * Any comments or reviews that cannot be resolved between the PR author and
-    reviewers can be submitted to the community [Approver]s and [Maintainer]s
-    during the weekly SIG meeting. If consensus is reached among the
-    [Approver]s and [Maintainer]s during the SIG meeting the objections to the
-    PR may be dismissed or resolved or the PR closed by a [Maintainer].
-  * Any substantive changes to the PR require existing Approval reviews be
-    cleared unless the approver explicitly states that their approval persists
-    across changes. This includes changes resulting from other feedback.
-    [Approver]s and [Maintainer]s can help in clearing reviews and they should
-    be consulted if there are any questions.
-
-* The PR branch is up to date with the base branch it is merging into.
-  * To ensure this does not block the PR, it should be configured to allow
-    maintainers to update it.
-
-* It has been open for review for at least one working day. This gives people
-  reasonable time to review.
-  * Trivial changes[^2] do not have to wait for one day and may be merged with
-    a single [Maintainer]'s approval.
-
-* All required GitHub workflows have succeeded.
-* Urgent fix can take exception as long as it has been actively communicated
-  among [Maintainer]s.
-
-Any [Maintainer] can merge the PR once the above criteria have been met.
-
-[^1]: A qualified approval is a GitHub Pull Request review with "Approve"
-  status from an OpenTelemetry Go [Approver] or [Maintainer].
-[^2]: Trivial changes include: typo corrections, cosmetic non-substantive
-  changes, documentation corrections or updates, dependency updates, etc.
 
 ## Design Choices
 
@@ -244,7 +216,7 @@ Meaning a `config` from one package should not be directly used by another. The
 one exception is the API packages.  The configs from the base API, eg.
 `go.opentelemetry.io/otel/trace.TracerConfig` and
 `go.opentelemetry.io/otel/metric.InstrumentConfig`, are intended to be consumed
-by the SDK therefore it is expected that these are exported.
+by the SDK therefor it is expected that these are exported.
 
 When a config is exported we want to maintain forward and backward
 compatibility, to achieve this no fields should be exported but should
@@ -262,12 +234,12 @@ func newConfig(options ...Option) config {
 	for _, option := range options {
 		config = option.apply(config)
 	}
-	// Perform any validation here.
+	// Preform any validation here.
 	return config
 }
 ```
 
-If validation of the `config` options is also performed this can return an
+If validation of the `config` options is also preformed this can return an
 error as well that is expected to be handled by the instantiation function
 or propagated to the user.
 
@@ -466,7 +438,7 @@ their parameters appropriately named.
 #### Interface Stability
 
 All exported stable interfaces that include the following warning in their
-documentation are allowed to be extended with additional methods.
+doumentation are allowed to be extended with additional methods.
 
 > Warning: methods may be added to this interface in minor releases.
 
@@ -528,30 +500,27 @@ interface that defines the specific functionality should be preferred.
 
 ## Approvers and Maintainers
 
-### Approvers
+Approvers:
 
 - [Evan Torrie](https://github.com/evantorrie), Verizon Media
+- [Josh MacDonald](https://github.com/jmacd), LightStep
 - [Sam Xie](https://github.com/XSAM), Cisco/AppDynamics
 - [David Ashpole](https://github.com/dashpole), Google
 - [Robert Pająk](https://github.com/pellared), Splunk
 - [Chester Cheung](https://github.com/hanyuancheung), Tencent
 - [Damien Mathieu](https://github.com/dmathieu), Elastic
 
-### Maintainers
+Maintainers:
 
 - [Aaron Clawson](https://github.com/MadVikingGod), LightStep
 - [Anthony Mirabella](https://github.com/Aneurysm9), AWS
 - [Tyler Yahn](https://github.com/MrAlias), Splunk
 
-### Emeritus
+Emeritus:
 
 - [Gustavo Silva Paiva](https://github.com/paivagustavo), LightStep
-- [Josh MacDonald](https://github.com/jmacd), LightStep
 
 ### Become an Approver or a Maintainer
 
 See the [community membership document in OpenTelemetry community
 repo](https://github.com/open-telemetry/community/blob/main/community-membership.md).
-
-[Approver]: #approvers
-[Maintainer]: #maintainers

vendor/go.opentelemetry.io/otel/Makefile

@@ -156,7 +156,7 @@ go-mod-tidy/%: DIR=$*
 go-mod-tidy/%: | crosslink
 	@echo "$(GO) mod tidy in $(DIR)" \
 		&& cd $(DIR) \
-		&& $(GO) mod tidy -compat=1.19
+		&& $(GO) mod tidy -compat=1.18
 
 .PHONY: lint-modules
 lint-modules: go-mod-tidy

vendor/go.opentelemetry.io/otel/README.md

@@ -14,7 +14,7 @@ It provides a set of APIs to directly measure performance and behavior of your s
 | Signal  | Status     | Project |
 | ------- | ---------- | ------- |
 | Traces  | Stable     | N/A     |
-| Metrics | Beta       | N/A     |
+| Metrics | Alpha      | N/A     |
 | Logs    | Frozen [1] | N/A     |
 
 - [1]: The Logs signal development is halted for this project while we develop both Traces and Metrics.
@@ -52,14 +52,19 @@ Currently, this project supports the following environments.
 | ------- | ---------- | ------------ |
 | Ubuntu  | 1.20       | amd64        |
 | Ubuntu  | 1.19       | amd64        |
+| Ubuntu  | 1.18       | amd64        |
 | Ubuntu  | 1.20       | 386          |
 | Ubuntu  | 1.19       | 386          |
+| Ubuntu  | 1.18       | 386          |
 | MacOS   | 1.20       | amd64        |
 | MacOS   | 1.19       | amd64        |
+| MacOS   | 1.18       | amd64        |
 | Windows | 1.20       | amd64        |
 | Windows | 1.19       | amd64        |
+| Windows | 1.18       | amd64        |
 | Windows | 1.20       | 386          |
 | Windows | 1.19       | 386          |
+| Windows | 1.18       | 386          |
 
 While this project should work for other systems, no compatibility guarantees
 are made for those systems currently.

vendor/go.opentelemetry.io/otel/attribute/set.go

@@ -18,7 +18,6 @@
 	"encoding/json"
 	"reflect"
 	"sort"
-	"sync"
 )
 
 type (
@@ -63,12 +62,6 @@
 			iface: [0]KeyValue{},
 		},
 	}
-
-	// sortables is a pool of Sortables used to create Sets with a user does
-	// not provide one.
-	sortables = sync.Pool{
-		New: func() interface{} { return new(Sortable) },
-	}
 )
 
 // EmptySet returns a reference to a Set with no elements.
@@ -98,7 +91,7 @@ func (l *Set) Len() int {
 
 // Get returns the KeyValue at ordered position idx in this set.
 func (l *Set) Get(idx int) (KeyValue, bool) {
-	if l == nil || !l.equivalent.Valid() {
+	if l == nil {
 		return KeyValue{}, false
 	}
 	value := l.equivalent.reflectValue()
@@ -114,7 +107,7 @@ func (l *Set) Get(idx int) (KeyValue, bool) {
 
 // Value returns the value of a specified key in this set.
 func (l *Set) Value(k Key) (Value, bool) {
-	if l == nil || !l.equivalent.Valid() {
+	if l == nil {
 		return Value{}, false
 	}
 	rValue := l.equivalent.reflectValue()
@@ -198,9 +191,7 @@ func NewSet(kvs ...KeyValue) Set {
 	if len(kvs) == 0 {
 		return empty()
 	}
-	srt := sortables.Get().(*Sortable)
+	s, _ := NewSetWithSortableFiltered(kvs, new(Sortable), nil)
-	s, _ := NewSetWithSortableFiltered(kvs, srt, nil)
-	sortables.Put(srt)
 	return s
 }
 
@@ -227,10 +218,7 @@ func NewSetWithFiltered(kvs []KeyValue, filter Filter) (Set, []KeyValue) {
 	if len(kvs) == 0 {
 		return empty(), nil
 	}
-	srt := sortables.Get().(*Sortable)
+	return NewSetWithSortableFiltered(kvs, new(Sortable), filter)
-	s, filtered := NewSetWithSortableFiltered(kvs, srt, filter)
-	sortables.Put(srt)
-	return s, filtered
 }
 
 // NewSetWithSortableFiltered returns a new Set.

vendor/go.opentelemetry.io/otel/exporters/jaeger/README.md

@@ -47,4 +47,4 @@ When re-generating Thrift code in the future, please adapt import paths as neces
 
 - [Jaeger](https://www.jaegertracing.io/)
 - [OpenTelemetry to Jaeger Transformation](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/trace/sdk_exporters/jaeger.md)
-- [OpenTelemetry Environment Variable Specification](https://opentelemetry.io/docs/reference/specification/sdk-environment-variables/#general-sdk-configuration)
+- [OpenTelemetry Environment Variable Specification](https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/sdk-environment-variables.md)

vendor/go.opentelemetry.io/otel/exporters/jaeger/env.go

@@ -37,7 +37,7 @@
 
 // envOr returns an env variable's value if it is exists or the default if not.
 func envOr(key, defaultValue string) string {
-	if v := os.Getenv(key); v != "" {
+	if v, ok := os.LookupEnv(key); ok && v != "" {
 		return v
 	}
 	return defaultValue

vendor/go.opentelemetry.io/otel/exporters/jaeger/internal/third_party/thrift/lib/go/thrift/exception.go

@@ -77,7 +77,7 @@ func PrependError(prepend string, err error) error {
 // WrapTException wraps an error into TException.
 //
 // If err is nil or already TException, it's returned as-is.
-// Otherwise it will be wrapped into TException with TExceptionType() returning
+// Otherwise it will be wraped into TException with TExceptionType() returning
 // TExceptionTypeUnknown, and Unwrap() returning the original error.
 func WrapTException(err error) TException {
 	if err == nil {

vendor/go.opentelemetry.io/otel/exporters/jaeger/internal/third_party/thrift/lib/go/thrift/transport.go

@@ -56,7 +56,7 @@ type stringWriter interface {
 	WriteString(s string) (n int, err error)
 }
 
-// This is "enhanced" transport with extra capabilities. You need to use one of these
+// This is "enchanced" transport with extra capabilities. You need to use one of these
 // to construct protocol.
 // Notably, TSocket does not implement this interface, and it is always a mistake to use
 // TSocket directly in protocol.

vendor/go.opentelemetry.io/otel/exporters/jaeger/internal/third_party/thrift/lib/go/thrift/type.go

@@ -40,7 +40,7 @@
 	LIST   = 15
 	UTF8   = 16
 	UTF16  = 17
-	//BINARY = 18   wrong and unused
+	//BINARY = 18   wrong and unusued
 )
 
 var typeNames = map[int]string{

vendor/go.opentelemetry.io/otel/exporters/otlp/internal/header.go

@@ -12,14 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package internal // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal"
+// Package internal contains common functionality for all OTLP exporters.
+package internal // import "go.opentelemetry.io/otel/exporters/otlp/internal"
 
-import (
+import "go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/exporters/otlp/otlptrace"
-)
 
-// GetUserAgentHeader returns an OTLP header value form "OTel OTLP Exporter Go/{{ .Version }}"
+// GetUserAgentHeader return an OTLP header value form "OTel OTLP Exporter Go/{{ .Version }}"
 // https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/protocol/exporter.md#user-agent
 func GetUserAgentHeader() string {
-	return "OTel OTLP Exporter Go/" + otlptrace.Version()
+	return "OTel OTLP Exporter Go/" + otel.Version()
 }

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig/options.go

@@ -27,7 +27,6 @@
 
 	"go.opentelemetry.io/otel/exporters/otlp/internal"
 	"go.opentelemetry.io/otel/exporters/otlp/internal/retry"
-	otinternal "go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal"
 )
 
 const (
@@ -98,7 +97,7 @@ func NewGRPCConfig(opts ...GRPCOption) Config {
 			Timeout:     DefaultTimeout,
 		},
 		RetryConfig: retry.DefaultConfig,
-		DialOptions: []grpc.DialOption{grpc.WithUserAgent(otinternal.GetUserAgentHeader())},
+		DialOptions: []grpc.DialOption{grpc.WithUserAgent(internal.GetUserAgentHeader())},
 	}
 	cfg = ApplyGRPCEnvConfigs(cfg)
 	for _, opt := range opts {

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc/client.go

@@ -130,16 +130,13 @@ func (c *client) Start(ctx context.Context) error {
 // If the client has already stopped, an error will be returned describing
 // this.
 func (c *client) Stop(ctx context.Context) error {
-	// Make sure to return context error if the context is done when calling this method.
-	err := ctx.Err()
-
 	// Acquire the c.tscMu lock within the ctx lifetime.
 	acquired := make(chan struct{})
 	go func() {
 		c.tscMu.Lock()
 		close(acquired)
 	}()
-
+	var err error
 	select {
 	case <-ctx.Done():
 		// The Stop timeout is reached. Kill any remaining exports to force

vendor/go.opentelemetry.io/otel/exporters/otlp/otlptrace/version.go

@@ -1,20 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package otlptrace // import "go.opentelemetry.io/otel/exporters/otlp/otlptrace"
-
-// Version is the current release version of the OpenTelemetry OTLP trace exporter in use.
-func Version() string {
-	return "1.15.1"
-}

vendor/go.opentelemetry.io/otel/handler.go

@@ -15,16 +15,58 @@
 package otel // import "go.opentelemetry.io/otel"
 
 import (
-	"go.opentelemetry.io/otel/internal/global"
+	"log"
+	"os"
+	"sync/atomic"
+	"unsafe"
 )
 
 var (
-	// Compile-time check global.ErrDelegator implements ErrorHandler.
+	// globalErrorHandler provides an ErrorHandler that can be used
-	_ ErrorHandler = (*global.ErrDelegator)(nil)
+	// throughout an OpenTelemetry instrumented project. When a user
-	// Compile-time check global.ErrLogger implements ErrorHandler.
+	// specified ErrorHandler is registered (`SetErrorHandler`) all calls to
-	_ ErrorHandler = (*global.ErrLogger)(nil)
+	// `Handle` and will be delegated to the registered ErrorHandler.
+	globalErrorHandler = defaultErrorHandler()
+
+	// Compile-time check that delegator implements ErrorHandler.
+	_ ErrorHandler = (*delegator)(nil)
+	// Compile-time check that errLogger implements ErrorHandler.
+	_ ErrorHandler = (*errLogger)(nil)
 )
 
+type delegator struct {
+	delegate unsafe.Pointer
+}
+
+func (d *delegator) Handle(err error) {
+	d.getDelegate().Handle(err)
+}
+
+func (d *delegator) getDelegate() ErrorHandler {
+	return *(*ErrorHandler)(atomic.LoadPointer(&d.delegate))
+}
+
+// setDelegate sets the ErrorHandler delegate.
+func (d *delegator) setDelegate(eh ErrorHandler) {
+	atomic.StorePointer(&d.delegate, unsafe.Pointer(&eh))
+}
+
+func defaultErrorHandler() *delegator {
+	d := &delegator{}
+	d.setDelegate(&errLogger{l: log.New(os.Stderr, "", log.LstdFlags)})
+	return d
+}
+
+// errLogger logs errors if no delegate is set, otherwise they are delegated.
+type errLogger struct {
+	l *log.Logger
+}
+
+// Handle logs err if no delegate is set, otherwise it is delegated.
+func (h *errLogger) Handle(err error) {
+	h.l.Print(err)
+}
+
 // GetErrorHandler returns the global ErrorHandler instance.
 //
 // The default ErrorHandler instance returned will log all errors to STDERR
@@ -34,7 +76,9 @@
 //
 // Subsequent calls to SetErrorHandler after the first will not forward errors
 // to the new ErrorHandler for prior returned instances.
-func GetErrorHandler() ErrorHandler { return global.GetErrorHandler() }
+func GetErrorHandler() ErrorHandler {
+	return globalErrorHandler
+}
 
 // SetErrorHandler sets the global ErrorHandler to h.
 //
@@ -42,7 +86,11 @@ func GetErrorHandler() ErrorHandler { return global.GetErrorHandler() }
 // GetErrorHandler will send errors to h instead of the default logging
 // ErrorHandler. Subsequent calls will set the global ErrorHandler, but not
 // delegate errors to h.
-func SetErrorHandler(h ErrorHandler) { global.SetErrorHandler(h) }
+func SetErrorHandler(h ErrorHandler) {
+	globalErrorHandler.setDelegate(h)
+}
 
 // Handle is a convenience function for ErrorHandler().Handle(err).
-func Handle(err error) { global.Handle(err) }
+func Handle(err error) {
+	GetErrorHandler().Handle(err)
+}

vendor/go.opentelemetry.io/otel/internal/global/handler.go

@@ -1,103 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package global // import "go.opentelemetry.io/otel/internal/global"
-
-import (
-	"log"
-	"os"
-	"sync/atomic"
-	"unsafe"
-)
-
-var (
-	// GlobalErrorHandler provides an ErrorHandler that can be used
-	// throughout an OpenTelemetry instrumented project. When a user
-	// specified ErrorHandler is registered (`SetErrorHandler`) all calls to
-	// `Handle` and will be delegated to the registered ErrorHandler.
-	GlobalErrorHandler = defaultErrorHandler()
-
-	// Compile-time check that delegator implements ErrorHandler.
-	_ ErrorHandler = (*ErrDelegator)(nil)
-	// Compile-time check that errLogger implements ErrorHandler.
-	_ ErrorHandler = (*ErrLogger)(nil)
-)
-
-// ErrorHandler handles irremediable events.
-type ErrorHandler interface {
-	// Handle handles any error deemed irremediable by an OpenTelemetry
-	// component.
-	Handle(error)
-}
-
-type ErrDelegator struct {
-	delegate unsafe.Pointer
-}
-
-func (d *ErrDelegator) Handle(err error) {
-	d.getDelegate().Handle(err)
-}
-
-func (d *ErrDelegator) getDelegate() ErrorHandler {
-	return *(*ErrorHandler)(atomic.LoadPointer(&d.delegate))
-}
-
-// setDelegate sets the ErrorHandler delegate.
-func (d *ErrDelegator) setDelegate(eh ErrorHandler) {
-	atomic.StorePointer(&d.delegate, unsafe.Pointer(&eh))
-}
-
-func defaultErrorHandler() *ErrDelegator {
-	d := &ErrDelegator{}
-	d.setDelegate(&ErrLogger{l: log.New(os.Stderr, "", log.LstdFlags)})
-	return d
-}
-
-// ErrLogger logs errors if no delegate is set, otherwise they are delegated.
-type ErrLogger struct {
-	l *log.Logger
-}
-
-// Handle logs err if no delegate is set, otherwise it is delegated.
-func (h *ErrLogger) Handle(err error) {
-	h.l.Print(err)
-}
-
-// GetErrorHandler returns the global ErrorHandler instance.
-//
-// The default ErrorHandler instance returned will log all errors to STDERR
-// until an override ErrorHandler is set with SetErrorHandler. All
-// ErrorHandler returned prior to this will automatically forward errors to
-// the set instance instead of logging.
-//
-// Subsequent calls to SetErrorHandler after the first will not forward errors
-// to the new ErrorHandler for prior returned instances.
-func GetErrorHandler() ErrorHandler {
-	return GlobalErrorHandler
-}
-
-// SetErrorHandler sets the global ErrorHandler to h.
-//
-// The first time this is called all ErrorHandler previously returned from
-// GetErrorHandler will send errors to h instead of the default logging
-// ErrorHandler. Subsequent calls will set the global ErrorHandler, but not
-// delegate errors to h.
-func SetErrorHandler(h ErrorHandler) {
-	GlobalErrorHandler.setDelegate(h)
-}
-
-// Handle is a convenience function for ErrorHandler().Handle(err).
-func Handle(err error) {
-	GetErrorHandler().Handle(err)
-}

vendor/go.opentelemetry.io/otel/internal/global/internal_logging.go

@@ -24,7 +24,7 @@
 	"github.com/go-logr/stdr"
 )
 
-// globalLogger is the logging interface used within the otel api and sdk provide details of the internals.
+// globalLogger is the logging interface used within the otel api and sdk provide deatails of the internals.
 //
 // The default logger uses stdr which is backed by the standard `log.Logger`
 // interface. This logger will only show messages at the Error Level.
@@ -36,9 +36,8 @@ func init() {
 
 // SetLogger overrides the globalLogger with l.
 //
-// To see Warn messages use a logger with `l.V(1).Enabled() == true`
+// To see Info messages use a logger with `l.V(1).Enabled() == true`
-// To see Info messages use a logger with `l.V(4).Enabled() == true`
+// To see Debug messages use a logger with `l.V(5).Enabled() == true`.
-// To see Debug messages use a logger with `l.V(8).Enabled() == true`.
 func SetLogger(l logr.Logger) {
 	atomic.StorePointer(&globalLogger, unsafe.Pointer(&l))
 }
@@ -48,9 +47,9 @@ func getLogger() logr.Logger {
 }
 
 // Info prints messages about the general state of the API or SDK.
-// This should usually be less than 5 messages a minute.
+// This should usually be less then 5 messages a minute.
 func Info(msg string, keysAndValues ...interface{}) {
-	getLogger().V(4).Info(msg, keysAndValues...)
+	getLogger().V(1).Info(msg, keysAndValues...)
 }
 
 // Error prints messages about exceptional states of the API or SDK.
@@ -60,11 +59,5 @@ func Error(err error, msg string, keysAndValues ...interface{}) {
 
 // Debug prints messages about all internal changes in the API or SDK.
 func Debug(msg string, keysAndValues ...interface{}) {
-	getLogger().V(8).Info(msg, keysAndValues...)
+	getLogger().V(5).Info(msg, keysAndValues...)
-}
-
-// Warn prints messages about warnings in the API or SDK.
-// Not an error but is likely more important than an informational event.
-func Warn(msg string, keysAndValues ...interface{}) {
-	getLogger().V(1).Info(msg, keysAndValues...)
 }

vendor/go.opentelemetry.io/otel/metric/asyncfloat64.go

@@ -1,258 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metric // import "go.opentelemetry.io/otel/metric"
-
-import (
-	"context"
-
-	"go.opentelemetry.io/otel/metric/embedded"
-)
-
-// Float64Observable describes a set of instruments used asynchronously to
-// record float64 measurements once per collection cycle. Observations of
-// these instruments are only made within a callback.
-//
-// Warning: Methods may be added to this interface in minor releases.
-type Float64Observable interface {
-	Observable
-
-	float64Observable()
-}
-
-// Float64ObservableCounter is an instrument used to asynchronously record
-// increasing float64 measurements once per collection cycle. Observations are
-// only made within a callback for this instrument. The value observed is
-// assumed the to be the cumulative sum of the count.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64ObservableCounter interface {
-	embedded.Float64ObservableCounter
-
-	Float64Observable
-}
-
-// Float64ObservableCounterConfig contains options for asynchronous counter
-// instruments that record int64 values.
-type Float64ObservableCounterConfig struct {
-	description string
-	unit        string
-	callbacks   []Float64Callback
-}
-
-// NewFloat64ObservableCounterConfig returns a new
-// [Float64ObservableCounterConfig] with all opts applied.
-func NewFloat64ObservableCounterConfig(opts ...Float64ObservableCounterOption) Float64ObservableCounterConfig {
-	var config Float64ObservableCounterConfig
-	for _, o := range opts {
-		config = o.applyFloat64ObservableCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64ObservableCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64ObservableCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Float64ObservableCounterConfig) Callbacks() []Float64Callback {
-	return c.callbacks
-}
-
-// Float64ObservableCounterOption applies options to a
-// [Float64ObservableCounterConfig]. See [Float64ObservableOption] and [Option]
-// for other options that can be used as a Float64ObservableCounterOption.
-type Float64ObservableCounterOption interface {
-	applyFloat64ObservableCounter(Float64ObservableCounterConfig) Float64ObservableCounterConfig
-}
-
-// Float64ObservableUpDownCounter is an instrument used to asynchronously
-// record float64 measurements once per collection cycle. Observations are only
-// made within a callback for this instrument. The value observed is assumed
-// the to be the cumulative sum of the count.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64ObservableUpDownCounter interface {
-	embedded.Float64ObservableUpDownCounter
-
-	Float64Observable
-}
-
-// Float64ObservableUpDownCounterConfig contains options for asynchronous
-// counter instruments that record int64 values.
-type Float64ObservableUpDownCounterConfig struct {
-	description string
-	unit        string
-	callbacks   []Float64Callback
-}
-
-// NewFloat64ObservableUpDownCounterConfig returns a new
-// [Float64ObservableUpDownCounterConfig] with all opts applied.
-func NewFloat64ObservableUpDownCounterConfig(opts ...Float64ObservableUpDownCounterOption) Float64ObservableUpDownCounterConfig {
-	var config Float64ObservableUpDownCounterConfig
-	for _, o := range opts {
-		config = o.applyFloat64ObservableUpDownCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64ObservableUpDownCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64ObservableUpDownCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Float64ObservableUpDownCounterConfig) Callbacks() []Float64Callback {
-	return c.callbacks
-}
-
-// Float64ObservableUpDownCounterOption applies options to a
-// [Float64ObservableUpDownCounterConfig]. See [Float64ObservableOption] and
-// [Option] for other options that can be used as a
-// Float64ObservableUpDownCounterOption.
-type Float64ObservableUpDownCounterOption interface {
-	applyFloat64ObservableUpDownCounter(Float64ObservableUpDownCounterConfig) Float64ObservableUpDownCounterConfig
-}
-
-// Float64ObservableGauge is an instrument used to asynchronously record
-// instantaneous float64 measurements once per collection cycle. Observations
-// are only made within a callback for this instrument.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64ObservableGauge interface {
-	embedded.Float64ObservableGauge
-
-	Float64Observable
-}
-
-// Float64ObservableGaugeConfig contains options for asynchronous counter
-// instruments that record int64 values.
-type Float64ObservableGaugeConfig struct {
-	description string
-	unit        string
-	callbacks   []Float64Callback
-}
-
-// NewFloat64ObservableGaugeConfig returns a new [Float64ObservableGaugeConfig]
-// with all opts applied.
-func NewFloat64ObservableGaugeConfig(opts ...Float64ObservableGaugeOption) Float64ObservableGaugeConfig {
-	var config Float64ObservableGaugeConfig
-	for _, o := range opts {
-		config = o.applyFloat64ObservableGauge(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64ObservableGaugeConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64ObservableGaugeConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Float64ObservableGaugeConfig) Callbacks() []Float64Callback {
-	return c.callbacks
-}
-
-// Float64ObservableGaugeOption applies options to a
-// [Float64ObservableGaugeConfig]. See [Float64ObservableOption] and
-// [Option] for other options that can be used as a
-// Float64ObservableGaugeOption.
-type Float64ObservableGaugeOption interface {
-	applyFloat64ObservableGauge(Float64ObservableGaugeConfig) Float64ObservableGaugeConfig
-}
-
-// Float64Observer is a recorder of float64 measurements.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64Observer interface {
-	embedded.Float64Observer
-
-	// Observe records the float64 value.
-	Observe(value float64, opts ...ObserveOption)
-}
-
-// Float64Callback is a function registered with a Meter that makes
-// observations for a Float64Observerable instrument it is registered with.
-// Calls to the Float64Observer record measurement values for the
-// Float64Observable.
-//
-// The function needs to complete in a finite amount of time and the deadline
-// of the passed context is expected to be honored.
-//
-// The function needs to make unique observations across all registered
-// Float64Callbacks. Meaning, it should not report measurements with the same
-// attributes as another Float64Callbacks also registered for the same
-// instrument.
-//
-// The function needs to be concurrent safe.
-type Float64Callback func(context.Context, Float64Observer) error
-
-// Float64ObservableOption applies options to float64 Observer instruments.
-type Float64ObservableOption interface {
-	Float64ObservableCounterOption
-	Float64ObservableUpDownCounterOption
-	Float64ObservableGaugeOption
-}
-
-type float64CallbackOpt struct {
-	cback Float64Callback
-}
-
-func (o float64CallbackOpt) applyFloat64ObservableCounter(cfg Float64ObservableCounterConfig) Float64ObservableCounterConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-func (o float64CallbackOpt) applyFloat64ObservableUpDownCounter(cfg Float64ObservableUpDownCounterConfig) Float64ObservableUpDownCounterConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-func (o float64CallbackOpt) applyFloat64ObservableGauge(cfg Float64ObservableGaugeConfig) Float64ObservableGaugeConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-// WithFloat64Callback adds callback to be called for an instrument.
-func WithFloat64Callback(callback Float64Callback) Float64ObservableOption {
-	return float64CallbackOpt{callback}
-}

vendor/go.opentelemetry.io/otel/metric/asyncint64.go

@@ -1,256 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metric // import "go.opentelemetry.io/otel/metric"
-
-import (
-	"context"
-
-	"go.opentelemetry.io/otel/metric/embedded"
-)
-
-// Int64Observable describes a set of instruments used asynchronously to record
-// int64 measurements once per collection cycle. Observations of these
-// instruments are only made within a callback.
-//
-// Warning: Methods may be added to this interface in minor releases.
-type Int64Observable interface {
-	Observable
-
-	int64Observable()
-}
-
-// Int64ObservableCounter is an instrument used to asynchronously record
-// increasing int64 measurements once per collection cycle. Observations are
-// only made within a callback for this instrument. The value observed is
-// assumed the to be the cumulative sum of the count.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64ObservableCounter interface {
-	embedded.Int64ObservableCounter
-
-	Int64Observable
-}
-
-// Int64ObservableCounterConfig contains options for asynchronous counter
-// instruments that record int64 values.
-type Int64ObservableCounterConfig struct {
-	description string
-	unit        string
-	callbacks   []Int64Callback
-}
-
-// NewInt64ObservableCounterConfig returns a new [Int64ObservableCounterConfig]
-// with all opts applied.
-func NewInt64ObservableCounterConfig(opts ...Int64ObservableCounterOption) Int64ObservableCounterConfig {
-	var config Int64ObservableCounterConfig
-	for _, o := range opts {
-		config = o.applyInt64ObservableCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64ObservableCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64ObservableCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Int64ObservableCounterConfig) Callbacks() []Int64Callback {
-	return c.callbacks
-}
-
-// Int64ObservableCounterOption applies options to a
-// [Int64ObservableCounterConfig]. See [Int64ObservableOption] and [Option] for
-// other options that can be used as an Int64ObservableCounterOption.
-type Int64ObservableCounterOption interface {
-	applyInt64ObservableCounter(Int64ObservableCounterConfig) Int64ObservableCounterConfig
-}
-
-// Int64ObservableUpDownCounter is an instrument used to asynchronously record
-// int64 measurements once per collection cycle. Observations are only made
-// within a callback for this instrument. The value observed is assumed the to
-// be the cumulative sum of the count.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64ObservableUpDownCounter interface {
-	embedded.Int64ObservableUpDownCounter
-
-	Int64Observable
-}
-
-// Int64ObservableUpDownCounterConfig contains options for asynchronous counter
-// instruments that record int64 values.
-type Int64ObservableUpDownCounterConfig struct {
-	description string
-	unit        string
-	callbacks   []Int64Callback
-}
-
-// NewInt64ObservableUpDownCounterConfig returns a new
-// [Int64ObservableUpDownCounterConfig] with all opts applied.
-func NewInt64ObservableUpDownCounterConfig(opts ...Int64ObservableUpDownCounterOption) Int64ObservableUpDownCounterConfig {
-	var config Int64ObservableUpDownCounterConfig
-	for _, o := range opts {
-		config = o.applyInt64ObservableUpDownCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64ObservableUpDownCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64ObservableUpDownCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Int64ObservableUpDownCounterConfig) Callbacks() []Int64Callback {
-	return c.callbacks
-}
-
-// Int64ObservableUpDownCounterOption applies options to a
-// [Int64ObservableUpDownCounterConfig]. See [Int64ObservableOption] and
-// [Option] for other options that can be used as an
-// Int64ObservableUpDownCounterOption.
-type Int64ObservableUpDownCounterOption interface {
-	applyInt64ObservableUpDownCounter(Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig
-}
-
-// Int64ObservableGauge is an instrument used to asynchronously record
-// instantaneous int64 measurements once per collection cycle. Observations are
-// only made within a callback for this instrument.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64ObservableGauge interface {
-	embedded.Int64ObservableGauge
-
-	Int64Observable
-}
-
-// Int64ObservableGaugeConfig contains options for asynchronous counter
-// instruments that record int64 values.
-type Int64ObservableGaugeConfig struct {
-	description string
-	unit        string
-	callbacks   []Int64Callback
-}
-
-// NewInt64ObservableGaugeConfig returns a new [Int64ObservableGaugeConfig]
-// with all opts applied.
-func NewInt64ObservableGaugeConfig(opts ...Int64ObservableGaugeOption) Int64ObservableGaugeConfig {
-	var config Int64ObservableGaugeConfig
-	for _, o := range opts {
-		config = o.applyInt64ObservableGauge(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64ObservableGaugeConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64ObservableGaugeConfig) Unit() string {
-	return c.unit
-}
-
-// Callbacks returns the configured callbacks.
-func (c Int64ObservableGaugeConfig) Callbacks() []Int64Callback {
-	return c.callbacks
-}
-
-// Int64ObservableGaugeOption applies options to a
-// [Int64ObservableGaugeConfig]. See [Int64ObservableOption] and [Option] for
-// other options that can be used as an Int64ObservableGaugeOption.
-type Int64ObservableGaugeOption interface {
-	applyInt64ObservableGauge(Int64ObservableGaugeConfig) Int64ObservableGaugeConfig
-}
-
-// Int64Observer is a recorder of int64 measurements.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64Observer interface {
-	embedded.Int64Observer
-
-	// Observe records the int64 value.
-	Observe(value int64, opts ...ObserveOption)
-}
-
-// Int64Callback is a function registered with a Meter that makes observations
-// for an Int64Observerable instrument it is registered with. Calls to the
-// Int64Observer record measurement values for the Int64Observable.
-//
-// The function needs to complete in a finite amount of time and the deadline
-// of the passed context is expected to be honored.
-//
-// The function needs to make unique observations across all registered
-// Int64Callbacks. Meaning, it should not report measurements with the same
-// attributes as another Int64Callbacks also registered for the same
-// instrument.
-//
-// The function needs to be concurrent safe.
-type Int64Callback func(context.Context, Int64Observer) error
-
-// Int64ObservableOption applies options to int64 Observer instruments.
-type Int64ObservableOption interface {
-	Int64ObservableCounterOption
-	Int64ObservableUpDownCounterOption
-	Int64ObservableGaugeOption
-}
-
-type int64CallbackOpt struct {
-	cback Int64Callback
-}
-
-func (o int64CallbackOpt) applyInt64ObservableCounter(cfg Int64ObservableCounterConfig) Int64ObservableCounterConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-func (o int64CallbackOpt) applyInt64ObservableUpDownCounter(cfg Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-func (o int64CallbackOpt) applyInt64ObservableGauge(cfg Int64ObservableGaugeConfig) Int64ObservableGaugeConfig {
-	cfg.callbacks = append(cfg.callbacks, o.cback)
-	return cfg
-}
-
-// WithInt64Callback adds callback to be called for an instrument.
-func WithInt64Callback(callback Int64Callback) Int64ObservableOption {
-	return int64CallbackOpt{callback}
-}

vendor/go.opentelemetry.io/otel/metric/doc.go

@@ -13,125 +13,11 @@
 // limitations under the License.
 
 /*
-Package metric provides the OpenTelemetry API used to measure metrics about
+Package metric provides an implementation of the metrics part of the
-source code operation.
+OpenTelemetry API.
 
-This API is separate from its implementation so the instrumentation built from
+This package is currently in a pre-GA phase. Backwards incompatible changes
-it is reusable. See [go.opentelemetry.io/otel/sdk/metric] for the official
+may be introduced in subsequent minor version releases as we work to track the
-OpenTelemetry implementation of this API.
+evolving OpenTelemetry specification and user feedback.
-
-All measurements made with this package are made via instruments. These
-instruments are created by a [Meter] which itself is created by a
-[MeterProvider]. Applications need to accept a [MeterProvider] implementation
-as a starting point when instrumenting. This can be done directly, or by using
-the OpenTelemetry global MeterProvider via [GetMeterProvider]. Using an
-appropriately named [Meter] from the accepted [MeterProvider], instrumentation
-can then be built from the [Meter]'s instruments.
-
-# Instruments
-
-Each instrument is designed to make measurements of a particular type. Broadly,
-all instruments fall into two overlapping logical categories: asynchronous or
-synchronous, and int64 or float64.
-
-All synchronous instruments ([Int64Counter], [Int64UpDownCounter],
-[Int64Histogram], [Float64Counter], [Float64UpDownCounter], [Float64Histogram])
-are used to measure the operation and performance of source code during the
-source code execution. These instruments only make measurements when the source
-code they instrument is run.
-
-All asynchronous instruments ([Int64ObservableCounter],
-[Int64ObservableUpDownCounter], [Int64ObservableGauge],
-[Float64ObservableCounter], [Float64ObservableUpDownCounter],
-[Float64ObservableGauge]) are used to measure metrics outside of the execution
-of source code. They are said to make "observations" via a callback function
-called once every measurement collection cycle.
-
-Each instrument is also grouped by the value type it measures. Either int64 or
-float64. The value being measured will dictate which instrument in these
-categories to use.
-
-Outside of these two broad categories, instruments are described by the
-function they are designed to serve. All Counters ([Int64Counter],
-[Float64Counter], [Int64ObservableCounter], [Float64ObservableCounter]) are
-designed to measure values that never decrease in value, but instead only
-incrementally increase in value. UpDownCounters ([Int64UpDownCounter],
-[Float64UpDownCounter], [Int64ObservableUpDownCounter],
-[Float64ObservableUpDownCounter]) on the other hand, are designed to measure
-values that can increase and decrease. When more information
-needs to be conveyed about all the synchronous measurements made during a
-collection cycle, a Histogram ([Int64Histogram], [Float64Histogram]) should be
-used. Finally, when just the most recent measurement needs to be conveyed about an
-asynchronous measurement, a Gauge ([Int64ObservableGauge],
-[Float64ObservableGauge]) should be used.
-
-See the [OpenTelemetry documentation] for more information about instruments
-and their intended use.
-
-# API Implementations
-
-This package does not conform to the standard Go versioning policy, all of its
-interfaces may have methods added to them without a package major version bump.
-This non-standard API evolution could surprise an uninformed implementation
-author. They could unknowingly build their implementation in a way that would
-result in a runtime panic for their users that update to the new API.
-
-The API is designed to help inform an instrumentation author about this
-non-standard API evolution. It requires them to choose a default behavior for
-unimplemented interface methods. There are three behavior choices they can
-make:
-
-  - Compilation failure
-  - Panic
-  - Default to another implementation
-
-All interfaces in this API embed a corresponding interface from
-[go.opentelemetry.io/otel/metric/embedded]. If an author wants the default
-behavior of their implementations to be a compilation failure, signaling to
-their users they need to update to the latest version of that implementation,
-they need to embed the corresponding interface from
-[go.opentelemetry.io/otel/metric/embedded] in their implementation. For
-example,
-
-	import "go.opentelemetry.io/otel/metric/embedded"
-
-	type MeterProvider struct {
-		embedded.MeterProvider
-		// ...
-	}
-
-If an author wants the default behavior of their implementations to a panic,
-they need to embed the API interface directly.
-
-	import "go.opentelemetry.io/otel/metric"
-
-	type MeterProvider struct {
-		metric.MeterProvider
-		// ...
-	}
-
-This is not a recommended behavior as it could lead to publishing packages that
-contain runtime panics when users update other package that use newer versions
-of [go.opentelemetry.io/otel/metric].
-
-Finally, an author can embed another implementation in theirs. The embedded
-implementation will be used for methods not defined by the author. For example,
-an author who want to default to silently dropping the call can use
-[go.opentelemetry.io/otel/metric/noop]:
-
-	import "go.opentelemetry.io/otel/metric/noop"
-
-	type MeterProvider struct {
-		noop.MeterProvider
-		// ...
-	}
-
-It is strongly recommended that authors only embed
-[go.opentelemetry.io/otel/metric/noop] if they choose this default behavior.
-That implementation is the only one OpenTelemetry authors can guarantee will
-fully implement all the API interfaces when a user updates their API.
-
-[OpenTelemetry documentation]: https://opentelemetry.io/docs/concepts/signals/metrics/
-[GetMeterProvider]: https://pkg.go.dev/go.opentelemetry.io/otel#GetMeterProvider
 */
 package metric // import "go.opentelemetry.io/otel/metric"

vendor/go.opentelemetry.io/otel/metric/embedded/embedded.go

@@ -1,234 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package embedded provides interfaces embedded within the [OpenTelemetry
-// metric API].
-//
-// Implementers of the [OpenTelemetry metric API] can embed the relevant type
-// from this package into their implementation directly. Doing so will result
-// in a compilation error for users when the [OpenTelemetry metric API] is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-//
-// [OpenTelemetry metric API]: https://pkg.go.dev/go.opentelemetry.io/otel/metric
-package embedded // import "go.opentelemetry.io/otel/metric/embedded"
-
-// MeterProvider is embedded in
-// [go.opentelemetry.io/otel/metric.MeterProvider].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.MeterProvider] if you want users to
-// experience a compilation error, signaling they need to update to your latest
-// implementation, when the [go.opentelemetry.io/otel/metric.MeterProvider]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type MeterProvider interface{ meterProvider() }
-
-// Meter is embedded in [go.opentelemetry.io/otel/metric.Meter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Meter] if you want users to experience a
-// compilation error, signaling they need to update to your latest
-// implementation, when the [go.opentelemetry.io/otel/metric.Meter] interface
-// is extended (which is something that can happen without a major version bump
-// of the API package).
-type Meter interface{ meter() }
-
-// Float64Observer is embedded in
-// [go.opentelemetry.io/otel/metric.Float64Observer].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64Observer] if you want
-// users to experience a compilation error, signaling they need to update to
-// your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64Observer] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Float64Observer interface{ float64Observer() }
-
-// Int64Observer is embedded in
-// [go.opentelemetry.io/otel/metric.Int64Observer].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64Observer] if you want users
-// to experience a compilation error, signaling they need to update to your
-// latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64Observer] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Int64Observer interface{ int64Observer() }
-
-// Observer is embedded in [go.opentelemetry.io/otel/metric.Observer].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Observer] if you want users to experience a
-// compilation error, signaling they need to update to your latest
-// implementation, when the [go.opentelemetry.io/otel/metric.Observer]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Observer interface{ observer() }
-
-// Registration is embedded in [go.opentelemetry.io/otel/metric.Registration].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Registration] if you want users to
-// experience a compilation error, signaling they need to update to your latest
-// implementation, when the [go.opentelemetry.io/otel/metric.Registration]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Registration interface{ registration() }
-
-// Float64Counter is embedded in
-// [go.opentelemetry.io/otel/metric.Float64Counter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64Counter] if you want
-// users to experience a compilation error, signaling they need to update to
-// your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64Counter] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Float64Counter interface{ float64Counter() }
-
-// Float64Histogram is embedded in
-// [go.opentelemetry.io/otel/metric.Float64Histogram].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64Histogram] if you want
-// users to experience a compilation error, signaling they need to update to
-// your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64Histogram] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Float64Histogram interface{ float64Histogram() }
-
-// Float64ObservableCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Float64ObservableCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64ObservableCounter] if you
-// want users to experience a compilation error, signaling they need to update
-// to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64ObservableCounter]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Float64ObservableCounter interface{ float64ObservableCounter() }
-
-// Float64ObservableGauge is embedded in
-// [go.opentelemetry.io/otel/metric.Float64ObservableGauge].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64ObservableGauge] if you
-// want users to experience a compilation error, signaling they need to update
-// to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64ObservableGauge]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Float64ObservableGauge interface{ float64ObservableGauge() }
-
-// Float64ObservableUpDownCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Float64ObservableUpDownCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64ObservableUpDownCounter]
-// if you want users to experience a compilation error, signaling they need to
-// update to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64ObservableUpDownCounter]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Float64ObservableUpDownCounter interface{ float64ObservableUpDownCounter() }
-
-// Float64UpDownCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Float64UpDownCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Float64UpDownCounter] if you
-// want users to experience a compilation error, signaling they need to update
-// to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Float64UpDownCounter] interface
-// is extended (which is something that can happen without a major version bump
-// of the API package).
-type Float64UpDownCounter interface{ float64UpDownCounter() }
-
-// Int64Counter is embedded in
-// [go.opentelemetry.io/otel/metric.Int64Counter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64Counter] if you want users
-// to experience a compilation error, signaling they need to update to your
-// latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64Counter] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Int64Counter interface{ int64Counter() }
-
-// Int64Histogram is embedded in
-// [go.opentelemetry.io/otel/metric.Int64Histogram].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64Histogram] if you want
-// users to experience a compilation error, signaling they need to update to
-// your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64Histogram] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Int64Histogram interface{ int64Histogram() }
-
-// Int64ObservableCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Int64ObservableCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64ObservableCounter] if you
-// want users to experience a compilation error, signaling they need to update
-// to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64ObservableCounter]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Int64ObservableCounter interface{ int64ObservableCounter() }
-
-// Int64ObservableGauge is embedded in
-// [go.opentelemetry.io/otel/metric.Int64ObservableGauge].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64ObservableGauge] if you
-// want users to experience a compilation error, signaling they need to update
-// to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64ObservableGauge] interface
-// is extended (which is something that can happen without a major version bump
-// of the API package).
-type Int64ObservableGauge interface{ int64ObservableGauge() }
-
-// Int64ObservableUpDownCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Int64ObservableUpDownCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64ObservableUpDownCounter] if
-// you want users to experience a compilation error, signaling they need to
-// update to your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64ObservableUpDownCounter]
-// interface is extended (which is something that can happen without a major
-// version bump of the API package).
-type Int64ObservableUpDownCounter interface{ int64ObservableUpDownCounter() }
-
-// Int64UpDownCounter is embedded in
-// [go.opentelemetry.io/otel/metric.Int64UpDownCounter].
-//
-// Embed this interface in your implementation of the
-// [go.opentelemetry.io/otel/metric.Int64UpDownCounter] if you want
-// users to experience a compilation error, signaling they need to update to
-// your latest implementation, when the
-// [go.opentelemetry.io/otel/metric.Int64UpDownCounter] interface is
-// extended (which is something that can happen without a major version bump of
-// the API package).
-type Int64UpDownCounter interface{ int64UpDownCounter() }

vendor/go.opentelemetry.io/otel/metric/global/global.go

@@ -19,31 +19,24 @@
 	"go.opentelemetry.io/otel/metric/internal/global"
 )
 
-// Meter returns a Meter from the global MeterProvider. The name must be the
+// Meter returns a Meter from the global MeterProvider. The
-// name of the library providing instrumentation. This name may be the same as
+// instrumentationName must be the name of the library providing
-// the instrumented code only if that code provides built-in instrumentation.
+// instrumentation. This name may be the same as the instrumented code only if
-// If the name is empty, then a implementation defined default name will be
+// that code provides built-in instrumentation. If the instrumentationName is
-// used instead.
+// empty, then a implementation defined default name will be used instead.
 //
-// If this is called before a global MeterProvider is registered the returned
+// This is short for MeterProvider().Meter(name).
-// Meter will be a No-op implementation of a Meter. When a global MeterProvider
-// is registered for the first time, the returned Meter, and all the
-// instruments it has created or will create, are recreated automatically from
-// the new MeterProvider.
-//
-// This is short for GetMeterProvider().Meter(name).
 func Meter(instrumentationName string, opts ...metric.MeterOption) metric.Meter {
 	return MeterProvider().Meter(instrumentationName, opts...)
 }
 
 // MeterProvider returns the registered global meter provider.
-//
+// If none is registered then a No-op MeterProvider is returned.
-// If no global MeterProvider has been registered, a No-op MeterProvider implementation is returned. When a global MeterProvider is registered for the first time, the returned MeterProvider, and all the Meters it has created or will create, are recreated automatically from the new MeterProvider.
 func MeterProvider() metric.MeterProvider {
 	return global.MeterProvider()
 }
 
-// SetMeterProvider registers mp as the global MeterProvider.
+// SetMeterProvider registers `mp` as the global meter provider.
 func SetMeterProvider(mp metric.MeterProvider) {
 	global.SetMeterProvider(mp)
 }

vendor/go.opentelemetry.io/otel/metric/instrument.go

@@ -1,332 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metric // import "go.opentelemetry.io/otel/metric"
-
-import "go.opentelemetry.io/otel/attribute"
-
-// Observable is used as a grouping mechanism for all instruments that are
-// updated within a Callback.
-type Observable interface {
-	observable()
-}
-
-// InstrumentOption applies options to all instruments.
-type InstrumentOption interface {
-	Int64CounterOption
-	Int64UpDownCounterOption
-	Int64HistogramOption
-	Int64ObservableCounterOption
-	Int64ObservableUpDownCounterOption
-	Int64ObservableGaugeOption
-
-	Float64CounterOption
-	Float64UpDownCounterOption
-	Float64HistogramOption
-	Float64ObservableCounterOption
-	Float64ObservableUpDownCounterOption
-	Float64ObservableGaugeOption
-}
-
-type descOpt string
-
-func (o descOpt) applyFloat64Counter(c Float64CounterConfig) Float64CounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyFloat64UpDownCounter(c Float64UpDownCounterConfig) Float64UpDownCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyFloat64Histogram(c Float64HistogramConfig) Float64HistogramConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyFloat64ObservableCounter(c Float64ObservableCounterConfig) Float64ObservableCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyFloat64ObservableUpDownCounter(c Float64ObservableUpDownCounterConfig) Float64ObservableUpDownCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyFloat64ObservableGauge(c Float64ObservableGaugeConfig) Float64ObservableGaugeConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64Counter(c Int64CounterConfig) Int64CounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64UpDownCounter(c Int64UpDownCounterConfig) Int64UpDownCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64Histogram(c Int64HistogramConfig) Int64HistogramConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64ObservableCounter(c Int64ObservableCounterConfig) Int64ObservableCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64ObservableUpDownCounter(c Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig {
-	c.description = string(o)
-	return c
-}
-
-func (o descOpt) applyInt64ObservableGauge(c Int64ObservableGaugeConfig) Int64ObservableGaugeConfig {
-	c.description = string(o)
-	return c
-}
-
-// WithDescription sets the instrument description.
-func WithDescription(desc string) InstrumentOption { return descOpt(desc) }
-
-type unitOpt string
-
-func (o unitOpt) applyFloat64Counter(c Float64CounterConfig) Float64CounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyFloat64UpDownCounter(c Float64UpDownCounterConfig) Float64UpDownCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyFloat64Histogram(c Float64HistogramConfig) Float64HistogramConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyFloat64ObservableCounter(c Float64ObservableCounterConfig) Float64ObservableCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyFloat64ObservableUpDownCounter(c Float64ObservableUpDownCounterConfig) Float64ObservableUpDownCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyFloat64ObservableGauge(c Float64ObservableGaugeConfig) Float64ObservableGaugeConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64Counter(c Int64CounterConfig) Int64CounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64UpDownCounter(c Int64UpDownCounterConfig) Int64UpDownCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64Histogram(c Int64HistogramConfig) Int64HistogramConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64ObservableCounter(c Int64ObservableCounterConfig) Int64ObservableCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64ObservableUpDownCounter(c Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig {
-	c.unit = string(o)
-	return c
-}
-
-func (o unitOpt) applyInt64ObservableGauge(c Int64ObservableGaugeConfig) Int64ObservableGaugeConfig {
-	c.unit = string(o)
-	return c
-}
-
-// WithUnit sets the instrument unit.
-func WithUnit(u string) InstrumentOption { return unitOpt(u) }
-
-// AddOption applies options to an addition measurement. See
-// [MeasurementOption] for other options that can be used as a AddOption.
-type AddOption interface {
-	applyAdd(AddConfig) AddConfig
-}
-
-// AddConfig contains options for an addition measurement.
-type AddConfig struct {
-	attrs attribute.Set
-}
-
-// NewAddConfig returns a new [AddConfig] with all opts applied.
-func NewAddConfig(opts []AddOption) AddConfig {
-	config := AddConfig{attrs: *attribute.EmptySet()}
-	for _, o := range opts {
-		config = o.applyAdd(config)
-	}
-	return config
-}
-
-// Attributes returns the configured attribute set.
-func (c AddConfig) Attributes() attribute.Set {
-	return c.attrs
-}
-
-// RecordOption applies options to an addition measurement. See
-// [MeasurementOption] for other options that can be used as a RecordOption.
-type RecordOption interface {
-	applyRecord(RecordConfig) RecordConfig
-}
-
-// RecordConfig contains options for a recorded measurement.
-type RecordConfig struct {
-	attrs attribute.Set
-}
-
-// NewRecordConfig returns a new [RecordConfig] with all opts applied.
-func NewRecordConfig(opts []RecordOption) RecordConfig {
-	config := RecordConfig{attrs: *attribute.EmptySet()}
-	for _, o := range opts {
-		config = o.applyRecord(config)
-	}
-	return config
-}
-
-// Attributes returns the configured attribute set.
-func (c RecordConfig) Attributes() attribute.Set {
-	return c.attrs
-}
-
-// ObserveOption applies options to an addition measurement. See
-// [MeasurementOption] for other options that can be used as a ObserveOption.
-type ObserveOption interface {
-	applyObserve(ObserveConfig) ObserveConfig
-}
-
-// ObserveConfig contains options for an observed measurement.
-type ObserveConfig struct {
-	attrs attribute.Set
-}
-
-// NewObserveConfig returns a new [ObserveConfig] with all opts applied.
-func NewObserveConfig(opts []ObserveOption) ObserveConfig {
-	config := ObserveConfig{attrs: *attribute.EmptySet()}
-	for _, o := range opts {
-		config = o.applyObserve(config)
-	}
-	return config
-}
-
-// Attributes returns the configured attribute set.
-func (c ObserveConfig) Attributes() attribute.Set {
-	return c.attrs
-}
-
-// MeasurementOption applies options to all instrument measurement.
-type MeasurementOption interface {
-	AddOption
-	RecordOption
-	ObserveOption
-}
-
-type attrOpt struct {
-	set attribute.Set
-}
-
-// mergeSets returns the union of keys between a and b. Any duplicate keys will
-// use the value associated with b.
-func mergeSets(a, b attribute.Set) attribute.Set {
-	// NewMergeIterator uses the first value for any duplicates.
-	iter := attribute.NewMergeIterator(&b, &a)
-	merged := make([]attribute.KeyValue, 0, a.Len()+b.Len())
-	for iter.Next() {
-		merged = append(merged, iter.Attribute())
-	}
-	return attribute.NewSet(merged...)
-}
-
-func (o attrOpt) applyAdd(c AddConfig) AddConfig {
-	switch {
-	case o.set.Len() == 0:
-	case c.attrs.Len() == 0:
-		c.attrs = o.set
-	default:
-		c.attrs = mergeSets(c.attrs, o.set)
-	}
-	return c
-}
-
-func (o attrOpt) applyRecord(c RecordConfig) RecordConfig {
-	switch {
-	case o.set.Len() == 0:
-	case c.attrs.Len() == 0:
-		c.attrs = o.set
-	default:
-		c.attrs = mergeSets(c.attrs, o.set)
-	}
-	return c
-}
-
-func (o attrOpt) applyObserve(c ObserveConfig) ObserveConfig {
-	switch {
-	case o.set.Len() == 0:
-	case c.attrs.Len() == 0:
-		c.attrs = o.set
-	default:
-		c.attrs = mergeSets(c.attrs, o.set)
-	}
-	return c
-}
-
-// WithAttributeSet sets the attribute Set associated with a measurement is
-// made with.
-//
-// If multiple WithAttributeSet or WithAttributes options are passed the
-// attributes will be merged together in the order they are passed. Attributes
-// with duplicate keys will use the last value passed.
-func WithAttributeSet(attributes attribute.Set) MeasurementOption {
-	return attrOpt{set: attributes}
-}
-
-// WithAttributes converts attributes into an attribute Set and sets the Set to
-// be associated with a measurement. This is shorthand for:
-//
-//	cp := make([]attribute.KeyValue, len(attributes))
-//	copy(cp, attributes)
-//	WithAttributes(attribute.NewSet(cp...))
-//
-// [attribute.NewSet] may modify the passed attributes so this will make a copy
-// of attributes before creating a set in order to ensure this function is
-// concurrent safe. This makes this option function less optimized in
-// comparison to [WithAttributeSet]. Therefore, [WithAttributeSet] should be
-// preferred for performance sensitive code.
-//
-// See [WithAttributeSet] for information about how multiple WithAttributes are
-// merged.
-func WithAttributes(attributes ...attribute.KeyValue) MeasurementOption {
-	cp := make([]attribute.KeyValue, len(attributes))
-	copy(cp, attributes)
-	return attrOpt{set: attribute.NewSet(cp...)}
-}

vendor/go.opentelemetry.io/otel/metric/instrument/asyncfloat64.go

@@ -0,0 +1,130 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package instrument // import "go.opentelemetry.io/otel/metric/instrument"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+)
+
+// Float64Observable describes a set of instruments used asynchronously to
+// record float64 measurements once per collection cycle. Observations of
+// these instruments are only made within a callback.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64Observable interface {
+	Asynchronous
+
+	float64Observable()
+}
+
+// Float64ObservableCounter is an instrument used to asynchronously record
+// increasing float64 measurements once per collection cycle. Observations are
+// only made within a callback for this instrument. The value observed is
+// assumed the to be the cumulative sum of the count.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64ObservableCounter interface{ Float64Observable }
+
+// Float64ObservableUpDownCounter is an instrument used to asynchronously
+// record float64 measurements once per collection cycle. Observations are only
+// made within a callback for this instrument. The value observed is assumed
+// the to be the cumulative sum of the count.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64ObservableUpDownCounter interface{ Float64Observable }
+
+// Float64ObservableGauge is an instrument used to asynchronously record
+// instantaneous float64 measurements once per collection cycle. Observations
+// are only made within a callback for this instrument.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64ObservableGauge interface{ Float64Observable }
+
+// Float64Observer is a recorder of float64 measurements.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64Observer interface {
+	Observe(value float64, attributes ...attribute.KeyValue)
+}
+
+// Float64Callback is a function registered with a Meter that makes
+// observations for a Float64Observerable instrument it is registered with.
+// Calls to the Float64Observer record measurement values for the
+// Float64Observable.
+//
+// The function needs to complete in a finite amount of time and the deadline
+// of the passed context is expected to be honored.
+//
+// The function needs to make unique observations across all registered
+// Float64Callbacks. Meaning, it should not report measurements with the same
+// attributes as another Float64Callbacks also registered for the same
+// instrument.
+//
+// The function needs to be concurrent safe.
+type Float64Callback func(context.Context, Float64Observer) error
+
+// Float64ObserverConfig contains options for Asynchronous instruments that
+// observe float64 values.
+type Float64ObserverConfig struct {
+	description string
+	unit        string
+	callbacks   []Float64Callback
+}
+
+// NewFloat64ObserverConfig returns a new Float64ObserverConfig with all opts
+// applied.
+func NewFloat64ObserverConfig(opts ...Float64ObserverOption) Float64ObserverConfig {
+	var config Float64ObserverConfig
+	for _, o := range opts {
+		config = o.applyFloat64Observer(config)
+	}
+	return config
+}
+
+// Description returns the Config description.
+func (c Float64ObserverConfig) Description() string {
+	return c.description
+}
+
+// Unit returns the Config unit.
+func (c Float64ObserverConfig) Unit() string {
+	return c.unit
+}
+
+// Callbacks returns the Config callbacks.
+func (c Float64ObserverConfig) Callbacks() []Float64Callback {
+	return c.callbacks
+}
+
+// Float64ObserverOption applies options to float64 Observer instruments.
+type Float64ObserverOption interface {
+	applyFloat64Observer(Float64ObserverConfig) Float64ObserverConfig
+}
+
+type float64ObserverOptionFunc func(Float64ObserverConfig) Float64ObserverConfig
+
+func (fn float64ObserverOptionFunc) applyFloat64Observer(cfg Float64ObserverConfig) Float64ObserverConfig {
+	return fn(cfg)
+}
+
+// WithFloat64Callback adds callback to be called for an instrument.
+func WithFloat64Callback(callback Float64Callback) Float64ObserverOption {
+	return float64ObserverOptionFunc(func(cfg Float64ObserverConfig) Float64ObserverConfig {
+		cfg.callbacks = append(cfg.callbacks, callback)
+		return cfg
+	})
+}

vendor/go.opentelemetry.io/otel/metric/instrument/asyncint64.go

@@ -0,0 +1,130 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package instrument // import "go.opentelemetry.io/otel/metric/instrument"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+)
+
+// Int64Observable describes a set of instruments used asynchronously to record
+// int64 measurements once per collection cycle. Observations of these
+// instruments are only made within a callback.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64Observable interface {
+	Asynchronous
+
+	int64Observable()
+}
+
+// Int64ObservableCounter is an instrument used to asynchronously record
+// increasing int64 measurements once per collection cycle. Observations are
+// only made within a callback for this instrument. The value observed is
+// assumed the to be the cumulative sum of the count.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64ObservableCounter interface{ Int64Observable }
+
+// Int64ObservableUpDownCounter is an instrument used to asynchronously record
+// int64 measurements once per collection cycle. Observations are only made
+// within a callback for this instrument. The value observed is assumed the to
+// be the cumulative sum of the count.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64ObservableUpDownCounter interface{ Int64Observable }
+
+// Int64ObservableGauge is an instrument used to asynchronously record
+// instantaneous int64 measurements once per collection cycle. Observations are
+// only made within a callback for this instrument.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64ObservableGauge interface{ Int64Observable }
+
+// Int64Observer is a recorder of int64 measurements.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64Observer interface {
+	Observe(value int64, attributes ...attribute.KeyValue)
+}
+
+// Int64Callback is a function registered with a Meter that makes
+// observations for a Int64Observerable instrument it is registered with.
+// Calls to the Int64Observer record measurement values for the
+// Int64Observable.
+//
+// The function needs to complete in a finite amount of time and the deadline
+// of the passed context is expected to be honored.
+//
+// The function needs to make unique observations across all registered
+// Int64Callback. Meaning, it should not report measurements with the same
+// attributes as another Int64Callbacks also registered for the same
+// instrument.
+//
+// The function needs to be concurrent safe.
+type Int64Callback func(context.Context, Int64Observer) error
+
+// Int64ObserverConfig contains options for Asynchronous instruments that
+// observe int64 values.
+type Int64ObserverConfig struct {
+	description string
+	unit        string
+	callbacks   []Int64Callback
+}
+
+// NewInt64ObserverConfig returns a new Int64ObserverConfig with all opts
+// applied.
+func NewInt64ObserverConfig(opts ...Int64ObserverOption) Int64ObserverConfig {
+	var config Int64ObserverConfig
+	for _, o := range opts {
+		config = o.applyInt64Observer(config)
+	}
+	return config
+}
+
+// Description returns the Config description.
+func (c Int64ObserverConfig) Description() string {
+	return c.description
+}
+
+// Unit returns the Config unit.
+func (c Int64ObserverConfig) Unit() string {
+	return c.unit
+}
+
+// Callbacks returns the Config callbacks.
+func (c Int64ObserverConfig) Callbacks() []Int64Callback {
+	return c.callbacks
+}
+
+// Int64ObserverOption applies options to int64 Observer instruments.
+type Int64ObserverOption interface {
+	applyInt64Observer(Int64ObserverConfig) Int64ObserverConfig
+}
+
+type int64ObserverOptionFunc func(Int64ObserverConfig) Int64ObserverConfig
+
+func (fn int64ObserverOptionFunc) applyInt64Observer(cfg Int64ObserverConfig) Int64ObserverConfig {
+	return fn(cfg)
+}
+
+// WithInt64Callback adds callback to be called for an instrument.
+func WithInt64Callback(callback Int64Callback) Int64ObserverOption {
+	return int64ObserverOptionFunc(func(cfg Int64ObserverConfig) Int64ObserverConfig {
+		cfg.callbacks = append(cfg.callbacks, callback)
+		return cfg
+	})
+}

vendor/go.opentelemetry.io/otel/metric/instrument/deprecation.go

@@ -1,452 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// Package instrument provides the OpenTelemetry API instruments used to make
-// measurements.
-//
-// Deprecated: Use go.opentelemetry.io/otel/metric instead.
-package instrument // import "go.opentelemetry.io/otel/metric/instrument"
-
-import (
-	"go.opentelemetry.io/otel/metric"
-)
-
-// Float64Observable is an alias for [metric.Float64Observable].
-//
-// Deprecated: Use [metric.Float64Observable] instead.
-type Float64Observable metric.Float64Observable
-
-// Float64ObservableCounter is an alias for [metric.Float64ObservableCounter].
-//
-// Deprecated: Use [metric.Float64ObservableCounter] instead.
-type Float64ObservableCounter metric.Float64ObservableCounter
-
-// Float64ObservableCounterConfig is an alias for
-// [metric.Float64ObservableCounterConfig].
-//
-// Deprecated: Use [metric.Float64ObservableCounterConfig] instead.
-type Float64ObservableCounterConfig metric.Float64ObservableCounterConfig
-
-// NewFloat64ObservableCounterConfig wraps
-// [metric.NewFloat64ObservableCounterConfig].
-//
-// Deprecated: Use [metric.NewFloat64ObservableCounterConfig] instead.
-func NewFloat64ObservableCounterConfig(opts ...Float64ObservableCounterOption) Float64ObservableCounterConfig {
-	o := make([]metric.Float64ObservableCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64ObservableCounterOption(opts[i])
-	}
-	c := metric.NewFloat64ObservableCounterConfig(o...)
-	return Float64ObservableCounterConfig(c)
-}
-
-// Float64ObservableCounterOption is an alias for
-// [metric.Float64ObservableCounterOption].
-//
-// Deprecated: Use [metric.Float64ObservableCounterOption] instead.
-type Float64ObservableCounterOption metric.Float64ObservableCounterOption
-
-// Float64ObservableUpDownCounter is an alias for
-// [metric.Float64ObservableUpDownCounter].
-//
-// Deprecated: Use [metric.Float64ObservableUpDownCounter] instead.
-type Float64ObservableUpDownCounter metric.Float64ObservableUpDownCounter
-
-// Float64ObservableUpDownCounterConfig is an alias for
-// [metric.Float64ObservableUpDownCounterConfig].
-//
-// Deprecated: Use [metric.Float64ObservableUpDownCounterConfig] instead.
-type Float64ObservableUpDownCounterConfig metric.Float64ObservableUpDownCounterConfig
-
-// NewFloat64ObservableUpDownCounterConfig wraps
-// [metric.NewFloat64ObservableUpDownCounterConfig].
-//
-// Deprecated: Use [metric.NewFloat64ObservableUpDownCounterConfig] instead.
-func NewFloat64ObservableUpDownCounterConfig(opts ...Float64ObservableUpDownCounterOption) Float64ObservableUpDownCounterConfig {
-	o := make([]metric.Float64ObservableUpDownCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64ObservableUpDownCounterOption(opts[i])
-	}
-	c := metric.NewFloat64ObservableUpDownCounterConfig(o...)
-	return Float64ObservableUpDownCounterConfig(c)
-}
-
-// Float64ObservableUpDownCounterOption is an alias for
-// [metric.Float64ObservableUpDownCounterOption].
-//
-// Deprecated: Use [metric.Float64ObservableUpDownCounterOption] instead.
-type Float64ObservableUpDownCounterOption metric.Float64ObservableUpDownCounterOption
-
-// Float64ObservableGauge is an alias for [metric.Float64ObservableGauge].
-//
-// Deprecated: Use [metric.Float64ObservableGauge] instead.
-type Float64ObservableGauge metric.Float64ObservableGauge
-
-// Float64ObservableGaugeConfig is an alias for
-// [metric.Float64ObservableGaugeConfig].
-//
-// Deprecated: Use [metric.Float64ObservableGaugeConfig] instead.
-type Float64ObservableGaugeConfig metric.Float64ObservableGaugeConfig
-
-// NewFloat64ObservableGaugeConfig wraps
-// [metric.NewFloat64ObservableGaugeConfig].
-//
-// Deprecated: Use [metric.NewFloat64ObservableGaugeConfig] instead.
-func NewFloat64ObservableGaugeConfig(opts ...Float64ObservableGaugeOption) Float64ObservableGaugeConfig {
-	o := make([]metric.Float64ObservableGaugeOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64ObservableGaugeOption(opts[i])
-	}
-	c := metric.NewFloat64ObservableGaugeConfig(o...)
-	return Float64ObservableGaugeConfig(c)
-}
-
-// Float64ObservableGaugeOption is an alias for
-// [metric.Float64ObservableGaugeOption].
-//
-// Deprecated: Use [metric.Float64ObservableGaugeOption] instead.
-type Float64ObservableGaugeOption metric.Float64ObservableGaugeOption
-
-// Float64Observer is an alias for [metric.Float64Observer].
-//
-// Deprecated: Use [metric.Float64Observer] instead.
-type Float64Observer metric.Float64Observer
-
-// Float64Callback is an alias for [metric.Float64Callback].
-//
-// Deprecated: Use [metric.Float64Callback] instead.
-type Float64Callback metric.Float64Callback
-
-// Float64ObservableOption is an alias for [metric.Float64ObservableOption].
-//
-// Deprecated: Use [metric.Float64ObservableOption] instead.
-type Float64ObservableOption metric.Float64ObservableOption
-
-// WithFloat64Callback wraps [metric.WithFloat64Callback].
-//
-// Deprecated: Use [metric.WithFloat64Callback] instead.
-func WithFloat64Callback(callback Float64Callback) Float64ObservableOption {
-	cback := metric.Float64Callback(callback)
-	opt := metric.WithFloat64Callback(cback)
-	return Float64ObservableOption(opt)
-}
-
-// Int64Observable is an alias for [metric.Int64Observable].
-//
-// Deprecated: Use [metric.Int64Observable] instead.
-type Int64Observable metric.Int64Observable
-
-// Int64ObservableCounter is an alias for [metric.Int64ObservableCounter].
-//
-// Deprecated: Use [metric.Int64ObservableCounter] instead.
-type Int64ObservableCounter metric.Int64ObservableCounter
-
-// Int64ObservableCounterConfig is an alias for
-// [metric.Int64ObservableCounterConfig].
-//
-// Deprecated: Use [metric.Int64ObservableCounterConfig] instead.
-type Int64ObservableCounterConfig metric.Int64ObservableCounterConfig
-
-// NewInt64ObservableCounterConfig wraps
-// [metric.NewInt64ObservableCounterConfig].
-//
-// Deprecated: Use [metric.NewInt64ObservableCounterConfig] instead.
-func NewInt64ObservableCounterConfig(opts ...Int64ObservableCounterOption) Int64ObservableCounterConfig {
-	o := make([]metric.Int64ObservableCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64ObservableCounterOption(opts[i])
-	}
-	c := metric.NewInt64ObservableCounterConfig(o...)
-	return Int64ObservableCounterConfig(c)
-}
-
-// Int64ObservableCounterOption is an alias for
-// [metric.Int64ObservableCounterOption].
-//
-// Deprecated: Use [metric.Int64ObservableCounterOption] instead.
-type Int64ObservableCounterOption metric.Int64ObservableCounterOption
-
-// Int64ObservableUpDownCounter is an alias for
-// [metric.Int64ObservableUpDownCounter].
-//
-// Deprecated: Use [metric.Int64ObservableUpDownCounter] instead.
-type Int64ObservableUpDownCounter metric.Int64ObservableUpDownCounter
-
-// Int64ObservableUpDownCounterConfig is an alias for
-// [metric.Int64ObservableUpDownCounterConfig].
-//
-// Deprecated: Use [metric.Int64ObservableUpDownCounterConfig] instead.
-type Int64ObservableUpDownCounterConfig metric.Int64ObservableUpDownCounterConfig
-
-// NewInt64ObservableUpDownCounterConfig wraps
-// [metric.NewInt64ObservableUpDownCounterConfig].
-//
-// Deprecated: Use [metric.NewInt64ObservableUpDownCounterConfig] instead.
-func NewInt64ObservableUpDownCounterConfig(opts ...Int64ObservableUpDownCounterOption) Int64ObservableUpDownCounterConfig {
-	o := make([]metric.Int64ObservableUpDownCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64ObservableUpDownCounterOption(opts[i])
-	}
-	c := metric.NewInt64ObservableUpDownCounterConfig(o...)
-	return Int64ObservableUpDownCounterConfig(c)
-}
-
-// Int64ObservableUpDownCounterOption is an alias for
-// [metric.Int64ObservableUpDownCounterOption].
-//
-// Deprecated: Use [metric.Int64ObservableUpDownCounterOption] instead.
-type Int64ObservableUpDownCounterOption metric.Int64ObservableUpDownCounterOption
-
-// Int64ObservableGauge is an alias for [metric.Int64ObservableGauge].
-//
-// Deprecated: Use [metric.Int64ObservableGauge] instead.
-type Int64ObservableGauge metric.Int64ObservableGauge
-
-// Int64ObservableGaugeConfig is an alias for
-// [metric.Int64ObservableGaugeConfig].
-//
-// Deprecated: Use [metric.Int64ObservableGaugeConfig] instead.
-type Int64ObservableGaugeConfig metric.Int64ObservableGaugeConfig
-
-// NewInt64ObservableGaugeConfig wraps [metric.NewInt64ObservableGaugeConfig].
-//
-// Deprecated: Use [metric.NewInt64ObservableGaugeConfig] instead.
-func NewInt64ObservableGaugeConfig(opts ...Int64ObservableGaugeOption) Int64ObservableGaugeConfig {
-	o := make([]metric.Int64ObservableGaugeOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64ObservableGaugeOption(opts[i])
-	}
-	c := metric.NewInt64ObservableGaugeConfig(o...)
-	return Int64ObservableGaugeConfig(c)
-}
-
-// Int64ObservableGaugeOption is an alias for
-// [metric.Int64ObservableGaugeOption].
-//
-// Deprecated: Use [metric.Int64ObservableGaugeOption] instead.
-type Int64ObservableGaugeOption metric.Int64ObservableGaugeOption
-
-// Int64Observer is an alias for [metric.Int64Observer].
-//
-// Deprecated: Use [metric.Int64Observer] instead.
-type Int64Observer metric.Int64Observer
-
-// Int64Callback is an alias for [metric.Int64Callback].
-//
-// Deprecated: Use [metric.Int64Callback] instead.
-type Int64Callback metric.Int64Callback
-
-// Int64ObservableOption is an alias for [metric.Int64ObservableOption].
-//
-// Deprecated: Use [metric.Int64ObservableOption] instead.
-type Int64ObservableOption metric.Int64ObservableOption
-
-// WithInt64Callback wraps [metric.WithInt64Callback].
-//
-// Deprecated: Use [metric.WithInt64Callback] instead.
-func WithInt64Callback(callback Int64Callback) Int64ObservableOption {
-	cback := metric.Int64Callback(callback)
-	opt := metric.WithInt64Callback(cback)
-	return Int64ObservableOption(opt)
-}
-
-// Float64Counter is an alias for [metric.Float64Counter].
-//
-// Deprecated: Use [metric.Float64Counter] instead.
-type Float64Counter metric.Float64Counter
-
-// Float64CounterConfig is an alias for [metric.Float64CounterConfig].
-//
-// Deprecated: Use [metric.Float64CounterConfig] instead.
-type Float64CounterConfig metric.Float64CounterConfig
-
-// NewFloat64CounterConfig wraps [metric.NewFloat64CounterConfig].
-//
-// Deprecated: Use [metric.NewFloat64CounterConfig] instead.
-func NewFloat64CounterConfig(opts ...Float64CounterOption) Float64CounterConfig {
-	o := make([]metric.Float64CounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64CounterOption(opts[i])
-	}
-	c := metric.NewFloat64CounterConfig(o...)
-	return Float64CounterConfig(c)
-}
-
-// Float64CounterOption is an alias for [metric.Float64CounterOption].
-//
-// Deprecated: Use [metric.Float64CounterOption] instead.
-type Float64CounterOption metric.Float64CounterOption
-
-// Float64UpDownCounter is an alias for [metric.Float64UpDownCounter].
-//
-// Deprecated: Use [metric.Float64UpDownCounter] instead.
-type Float64UpDownCounter metric.Float64UpDownCounter
-
-// Float64UpDownCounterConfig is an alias for
-// [metric.Float64UpDownCounterConfig].
-//
-// Deprecated: Use [metric.Float64UpDownCounterConfig] instead.
-type Float64UpDownCounterConfig metric.Float64UpDownCounterConfig
-
-// NewFloat64UpDownCounterConfig wraps [metric.NewFloat64UpDownCounterConfig].
-//
-// Deprecated: Use [metric.NewFloat64UpDownCounterConfig] instead.
-func NewFloat64UpDownCounterConfig(opts ...Float64UpDownCounterOption) Float64UpDownCounterConfig {
-	o := make([]metric.Float64UpDownCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64UpDownCounterOption(opts[i])
-	}
-	c := metric.NewFloat64UpDownCounterConfig(o...)
-	return Float64UpDownCounterConfig(c)
-}
-
-// Float64UpDownCounterOption is an alias for
-// [metric.Float64UpDownCounterOption].
-//
-// Deprecated: Use [metric.Float64UpDownCounterOption] instead.
-type Float64UpDownCounterOption metric.Float64UpDownCounterOption
-
-// Float64Histogram is an alias for [metric.Float64Histogram].
-//
-// Deprecated: Use [metric.Float64Histogram] instead.
-type Float64Histogram metric.Float64Histogram
-
-// Float64HistogramConfig is an alias for [metric.Float64HistogramConfig].
-//
-// Deprecated: Use [metric.Float64HistogramConfig] instead.
-type Float64HistogramConfig metric.Float64HistogramConfig
-
-// NewFloat64HistogramConfig wraps [metric.NewFloat64HistogramConfig].
-//
-// Deprecated: Use [metric.NewFloat64HistogramConfig] instead.
-func NewFloat64HistogramConfig(opts ...Float64HistogramOption) Float64HistogramConfig {
-	o := make([]metric.Float64HistogramOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Float64HistogramOption(opts[i])
-	}
-	c := metric.NewFloat64HistogramConfig(o...)
-	return Float64HistogramConfig(c)
-}
-
-// Float64HistogramOption is an alias for [metric.Float64HistogramOption].
-//
-// Deprecated: Use [metric.Float64HistogramOption] instead.
-type Float64HistogramOption metric.Float64HistogramOption
-
-// Int64Counter is an alias for [metric.Int64Counter].
-//
-// Deprecated: Use [metric.Int64Counter] instead.
-type Int64Counter metric.Int64Counter
-
-// Int64CounterConfig is an alias for [metric.Int64CounterConfig].
-//
-// Deprecated: Use [metric.Int64CounterConfig] instead.
-type Int64CounterConfig metric.Int64CounterConfig
-
-// NewInt64CounterConfig wraps [metric.NewInt64CounterConfig].
-//
-// Deprecated: Use [metric.NewInt64CounterConfig] instead.
-func NewInt64CounterConfig(opts ...Int64CounterOption) Int64CounterConfig {
-	o := make([]metric.Int64CounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64CounterOption(opts[i])
-	}
-	c := metric.NewInt64CounterConfig(o...)
-	return Int64CounterConfig(c)
-}
-
-// Int64CounterOption is an alias for [metric.Int64CounterOption].
-//
-// Deprecated: Use [metric.Int64CounterOption] instead.
-type Int64CounterOption metric.Int64CounterOption
-
-// Int64UpDownCounter is an alias for [metric.Int64UpDownCounter].
-//
-// Deprecated: Use [metric.Int64UpDownCounter] instead.
-type Int64UpDownCounter metric.Int64UpDownCounter
-
-// Int64UpDownCounterConfig is an alias for [metric.Int64UpDownCounterConfig].
-//
-// Deprecated: Use [metric.Int64UpDownCounterConfig] instead.
-type Int64UpDownCounterConfig metric.Int64UpDownCounterConfig
-
-// NewInt64UpDownCounterConfig wraps [metric.NewInt64UpDownCounterConfig].
-//
-// Deprecated: Use [metric.NewInt64UpDownCounterConfig] instead.
-func NewInt64UpDownCounterConfig(opts ...Int64UpDownCounterOption) Int64UpDownCounterConfig {
-	o := make([]metric.Int64UpDownCounterOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64UpDownCounterOption(opts[i])
-	}
-	c := metric.NewInt64UpDownCounterConfig(o...)
-	return Int64UpDownCounterConfig(c)
-}
-
-// Int64UpDownCounterOption is an alias for [metric.Int64UpDownCounterOption].
-//
-// Deprecated: Use [metric.Int64UpDownCounterOption] instead.
-type Int64UpDownCounterOption metric.Int64UpDownCounterOption
-
-// Int64Histogram is an alias for [metric.Int64Histogram].
-//
-// Deprecated: Use [metric.Int64Histogram] instead.
-type Int64Histogram metric.Int64Histogram
-
-// Int64HistogramConfig is an alias for [metric.Int64HistogramConfig].
-//
-// Deprecated: Use [metric.Int64HistogramConfig] instead.
-type Int64HistogramConfig metric.Int64HistogramConfig
-
-// NewInt64HistogramConfig wraps [metric.NewInt64HistogramConfig].
-//
-// Deprecated: Use [metric.NewInt64HistogramConfig] instead.
-func NewInt64HistogramConfig(opts ...Int64HistogramOption) Int64HistogramConfig {
-	o := make([]metric.Int64HistogramOption, len(opts))
-	for i := range opts {
-		o[i] = metric.Int64HistogramOption(opts[i])
-	}
-	c := metric.NewInt64HistogramConfig(o...)
-	return Int64HistogramConfig(c)
-}
-
-// Int64HistogramOption is an alias for [metric.Int64HistogramOption].
-//
-// Deprecated: Use [metric.Int64HistogramOption] instead.
-type Int64HistogramOption metric.Int64HistogramOption
-
-// Observable is an alias for [metric.Observable].
-//
-// Deprecated: Use [metric.Observable] instead.
-type Observable metric.Observable
-
-// Option is an alias for [metric.InstrumentOption].
-//
-// Deprecated: Use [metric.InstrumentOption] instead.
-type Option metric.InstrumentOption
-
-// WithDescription is an alias for [metric.WithDescription].
-//
-// Deprecated: Use [metric.WithDescription] instead.
-func WithDescription(desc string) Option {
-	o := metric.WithDescription(desc)
-	return Option(o)
-}
-
-// WithUnit is an alias for [metric.WithUnit].
-//
-// Deprecated: Use [metric.WithUnit] instead.
-func WithUnit(u string) Option {
-	o := metric.WithUnit(u)
-	return Option(o)
-}

vendor/go.opentelemetry.io/otel/metric/instrument/instrument.go

@@ -0,0 +1,88 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package instrument // import "go.opentelemetry.io/otel/metric/instrument"
+
+// Asynchronous instruments are instruments that are updated within a Callback.
+// If an instrument is observed outside of it's callback it should be an error.
+//
+// This interface is used as a grouping mechanism.
+type Asynchronous interface {
+	asynchronous()
+}
+
+// Synchronous instruments are updated in line with application code.
+//
+// This interface is used as a grouping mechanism.
+type Synchronous interface {
+	synchronous()
+}
+
+// Option applies options to all instruments.
+type Option interface {
+	Float64ObserverOption
+	Int64ObserverOption
+	Float64Option
+	Int64Option
+}
+
+type descOpt string
+
+func (o descOpt) applyFloat64(c Float64Config) Float64Config {
+	c.description = string(o)
+	return c
+}
+
+func (o descOpt) applyInt64(c Int64Config) Int64Config {
+	c.description = string(o)
+	return c
+}
+
+func (o descOpt) applyFloat64Observer(c Float64ObserverConfig) Float64ObserverConfig {
+	c.description = string(o)
+	return c
+}
+
+func (o descOpt) applyInt64Observer(c Int64ObserverConfig) Int64ObserverConfig {
+	c.description = string(o)
+	return c
+}
+
+// WithDescription sets the instrument description.
+func WithDescription(desc string) Option { return descOpt(desc) }
+
+type unitOpt string
+
+func (o unitOpt) applyFloat64(c Float64Config) Float64Config {
+	c.unit = string(o)
+	return c
+}
+
+func (o unitOpt) applyInt64(c Int64Config) Int64Config {
+	c.unit = string(o)
+	return c
+}
+
+func (o unitOpt) applyFloat64Observer(c Float64ObserverConfig) Float64ObserverConfig {
+	c.unit = string(o)
+	return c
+}
+
+func (o unitOpt) applyInt64Observer(c Int64ObserverConfig) Int64ObserverConfig {
+	c.unit = string(o)
+	return c
+}
+
+// WithUnit sets the instrument unit.
+func WithUnit(u string) Option { return unitOpt(u) }

vendor/go.opentelemetry.io/otel/metric/instrument/syncfloat64.go

@@ -0,0 +1,85 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package instrument // import "go.opentelemetry.io/otel/metric/instrument"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+)
+
+// Float64Counter is an instrument that records increasing float64 values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64Counter interface {
+	// Add records a change to the counter.
+	Add(ctx context.Context, incr float64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Float64UpDownCounter is an instrument that records increasing or decreasing
+// float64 values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64UpDownCounter interface {
+	// Add records a change to the counter.
+	Add(ctx context.Context, incr float64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Float64Histogram is an instrument that records a distribution of float64
+// values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Float64Histogram interface {
+	// Record adds an additional value to the distribution.
+	Record(ctx context.Context, incr float64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Float64Config contains options for Asynchronous instruments that
+// observe float64 values.
+type Float64Config struct {
+	description string
+	unit        string
+}
+
+// Float64Config contains options for Synchronous instruments that record
+// float64 values.
+func NewFloat64Config(opts ...Float64Option) Float64Config {
+	var config Float64Config
+	for _, o := range opts {
+		config = o.applyFloat64(config)
+	}
+	return config
+}
+
+// Description returns the Config description.
+func (c Float64Config) Description() string {
+	return c.description
+}
+
+// Unit returns the Config unit.
+func (c Float64Config) Unit() string {
+	return c.unit
+}
+
+// Float64Option applies options to synchronous float64 instruments.
+type Float64Option interface {
+	applyFloat64(Float64Config) Float64Config
+}

vendor/go.opentelemetry.io/otel/metric/instrument/syncint64.go

@@ -0,0 +1,85 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package instrument // import "go.opentelemetry.io/otel/metric/instrument"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+)
+
+// Int64Counter is an instrument that records increasing int64 values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64Counter interface {
+	// Add records a change to the counter.
+	Add(ctx context.Context, incr int64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Int64UpDownCounter is an instrument that records increasing or decreasing
+// int64 values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64UpDownCounter interface {
+	// Add records a change to the counter.
+	Add(ctx context.Context, incr int64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Int64Histogram is an instrument that records a distribution of int64
+// values.
+//
+// Warning: methods may be added to this interface in minor releases.
+type Int64Histogram interface {
+	// Record adds an additional value to the distribution.
+	Record(ctx context.Context, incr int64, attrs ...attribute.KeyValue)
+
+	Synchronous
+}
+
+// Int64Config contains options for Synchronous instruments that record int64
+// values.
+type Int64Config struct {
+	description string
+	unit        string
+}
+
+// NewInt64Config returns a new Int64Config with all opts
+// applied.
+func NewInt64Config(opts ...Int64Option) Int64Config {
+	var config Int64Config
+	for _, o := range opts {
+		config = o.applyInt64(config)
+	}
+	return config
+}
+
+// Description returns the Config description.
+func (c Int64Config) Description() string {
+	return c.description
+}
+
+// Unit returns the Config unit.
+func (c Int64Config) Unit() string {
+	return c.unit
+}
+
+// Int64Option applies options to synchronous int64 instruments.
+type Int64Option interface {
+	applyInt64(Int64Config) Int64Config
+}

vendor/go.opentelemetry.io/otel/metric/internal/global/instruments.go

@@ -19,27 +19,27 @@
 	"sync/atomic"
 
 	"go.opentelemetry.io/otel"
+	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/metric/embedded"
+	"go.opentelemetry.io/otel/metric/instrument"
 )
 
 // unwrapper unwraps to return the underlying instrument implementation.
 type unwrapper interface {
-	Unwrap() metric.Observable
+	Unwrap() instrument.Asynchronous
 }
 
 type afCounter struct {
-	embedded.Float64ObservableCounter
+	instrument.Float64Observable
-	metric.Float64Observable
 
 	name string
-	opts []metric.Float64ObservableCounterOption
+	opts []instrument.Float64ObserverOption
 
-	delegate atomic.Value //metric.Float64ObservableCounter
+	delegate atomic.Value //instrument.Float64ObservableCounter
 }
 
 var _ unwrapper = (*afCounter)(nil)
-var _ metric.Float64ObservableCounter = (*afCounter)(nil)
+var _ instrument.Float64ObservableCounter = (*afCounter)(nil)
 
 func (i *afCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64ObservableCounter(i.name, i.opts...)
@@ -50,25 +50,24 @@ func (i *afCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *afCounter) Unwrap() metric.Observable {
+func (i *afCounter) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Float64ObservableCounter)
+		return ctr.(instrument.Float64ObservableCounter)
 	}
 	return nil
 }
 
 type afUpDownCounter struct {
-	embedded.Float64ObservableUpDownCounter
+	instrument.Float64Observable
-	metric.Float64Observable
 
 	name string
-	opts []metric.Float64ObservableUpDownCounterOption
+	opts []instrument.Float64ObserverOption
 
-	delegate atomic.Value //metric.Float64ObservableUpDownCounter
+	delegate atomic.Value //instrument.Float64ObservableUpDownCounter
 }
 
 var _ unwrapper = (*afUpDownCounter)(nil)
-var _ metric.Float64ObservableUpDownCounter = (*afUpDownCounter)(nil)
+var _ instrument.Float64ObservableUpDownCounter = (*afUpDownCounter)(nil)
 
 func (i *afUpDownCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64ObservableUpDownCounter(i.name, i.opts...)
@@ -79,25 +78,24 @@ func (i *afUpDownCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *afUpDownCounter) Unwrap() metric.Observable {
+func (i *afUpDownCounter) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Float64ObservableUpDownCounter)
+		return ctr.(instrument.Float64ObservableUpDownCounter)
 	}
 	return nil
 }
 
 type afGauge struct {
-	embedded.Float64ObservableGauge
+	instrument.Float64Observable
-	metric.Float64Observable
 
 	name string
-	opts []metric.Float64ObservableGaugeOption
+	opts []instrument.Float64ObserverOption
 
-	delegate atomic.Value //metric.Float64ObservableGauge
+	delegate atomic.Value //instrument.Float64ObservableGauge
 }
 
 var _ unwrapper = (*afGauge)(nil)
-var _ metric.Float64ObservableGauge = (*afGauge)(nil)
+var _ instrument.Float64ObservableGauge = (*afGauge)(nil)
 
 func (i *afGauge) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64ObservableGauge(i.name, i.opts...)
@@ -108,25 +106,24 @@ func (i *afGauge) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *afGauge) Unwrap() metric.Observable {
+func (i *afGauge) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Float64ObservableGauge)
+		return ctr.(instrument.Float64ObservableGauge)
 	}
 	return nil
 }
 
 type aiCounter struct {
-	embedded.Int64ObservableCounter
+	instrument.Int64Observable
-	metric.Int64Observable
 
 	name string
-	opts []metric.Int64ObservableCounterOption
+	opts []instrument.Int64ObserverOption
 
-	delegate atomic.Value //metric.Int64ObservableCounter
+	delegate atomic.Value //instrument.Int64ObservableCounter
 }
 
 var _ unwrapper = (*aiCounter)(nil)
-var _ metric.Int64ObservableCounter = (*aiCounter)(nil)
+var _ instrument.Int64ObservableCounter = (*aiCounter)(nil)
 
 func (i *aiCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64ObservableCounter(i.name, i.opts...)
@@ -137,25 +134,24 @@ func (i *aiCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *aiCounter) Unwrap() metric.Observable {
+func (i *aiCounter) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Int64ObservableCounter)
+		return ctr.(instrument.Int64ObservableCounter)
 	}
 	return nil
 }
 
 type aiUpDownCounter struct {
-	embedded.Int64ObservableUpDownCounter
+	instrument.Int64Observable
-	metric.Int64Observable
 
 	name string
-	opts []metric.Int64ObservableUpDownCounterOption
+	opts []instrument.Int64ObserverOption
 
-	delegate atomic.Value //metric.Int64ObservableUpDownCounter
+	delegate atomic.Value //instrument.Int64ObservableUpDownCounter
 }
 
 var _ unwrapper = (*aiUpDownCounter)(nil)
-var _ metric.Int64ObservableUpDownCounter = (*aiUpDownCounter)(nil)
+var _ instrument.Int64ObservableUpDownCounter = (*aiUpDownCounter)(nil)
 
 func (i *aiUpDownCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64ObservableUpDownCounter(i.name, i.opts...)
@@ -166,25 +162,24 @@ func (i *aiUpDownCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *aiUpDownCounter) Unwrap() metric.Observable {
+func (i *aiUpDownCounter) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Int64ObservableUpDownCounter)
+		return ctr.(instrument.Int64ObservableUpDownCounter)
 	}
 	return nil
 }
 
 type aiGauge struct {
-	embedded.Int64ObservableGauge
+	instrument.Int64Observable
-	metric.Int64Observable
 
 	name string
-	opts []metric.Int64ObservableGaugeOption
+	opts []instrument.Int64ObserverOption
 
-	delegate atomic.Value //metric.Int64ObservableGauge
+	delegate atomic.Value //instrument.Int64ObservableGauge
 }
 
 var _ unwrapper = (*aiGauge)(nil)
-var _ metric.Int64ObservableGauge = (*aiGauge)(nil)
+var _ instrument.Int64ObservableGauge = (*aiGauge)(nil)
 
 func (i *aiGauge) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64ObservableGauge(i.name, i.opts...)
@@ -195,24 +190,24 @@ func (i *aiGauge) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *aiGauge) Unwrap() metric.Observable {
+func (i *aiGauge) Unwrap() instrument.Asynchronous {
 	if ctr := i.delegate.Load(); ctr != nil {
-		return ctr.(metric.Int64ObservableGauge)
+		return ctr.(instrument.Int64ObservableGauge)
 	}
 	return nil
 }
 
 // Sync Instruments.
 type sfCounter struct {
-	embedded.Float64Counter
-
 	name string
-	opts []metric.Float64CounterOption
+	opts []instrument.Float64Option
 
-	delegate atomic.Value //metric.Float64Counter
+	delegate atomic.Value //instrument.Float64Counter
+
+	instrument.Synchronous
 }
 
-var _ metric.Float64Counter = (*sfCounter)(nil)
+var _ instrument.Float64Counter = (*sfCounter)(nil)
 
 func (i *sfCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64Counter(i.name, i.opts...)
@@ -223,22 +218,22 @@ func (i *sfCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *sfCounter) Add(ctx context.Context, incr float64, opts ...metric.AddOption) {
+func (i *sfCounter) Add(ctx context.Context, incr float64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Float64Counter).Add(ctx, incr, opts...)
+		ctr.(instrument.Float64Counter).Add(ctx, incr, attrs...)
 	}
 }
 
 type sfUpDownCounter struct {
-	embedded.Float64UpDownCounter
-
 	name string
-	opts []metric.Float64UpDownCounterOption
+	opts []instrument.Float64Option
 
-	delegate atomic.Value //metric.Float64UpDownCounter
+	delegate atomic.Value //instrument.Float64UpDownCounter
+
+	instrument.Synchronous
 }
 
-var _ metric.Float64UpDownCounter = (*sfUpDownCounter)(nil)
+var _ instrument.Float64UpDownCounter = (*sfUpDownCounter)(nil)
 
 func (i *sfUpDownCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64UpDownCounter(i.name, i.opts...)
@@ -249,22 +244,22 @@ func (i *sfUpDownCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *sfUpDownCounter) Add(ctx context.Context, incr float64, opts ...metric.AddOption) {
+func (i *sfUpDownCounter) Add(ctx context.Context, incr float64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Float64UpDownCounter).Add(ctx, incr, opts...)
+		ctr.(instrument.Float64UpDownCounter).Add(ctx, incr, attrs...)
 	}
 }
 
 type sfHistogram struct {
-	embedded.Float64Histogram
-
 	name string
-	opts []metric.Float64HistogramOption
+	opts []instrument.Float64Option
 
-	delegate atomic.Value //metric.Float64Histogram
+	delegate atomic.Value //instrument.Float64Histogram
+
+	instrument.Synchronous
 }
 
-var _ metric.Float64Histogram = (*sfHistogram)(nil)
+var _ instrument.Float64Histogram = (*sfHistogram)(nil)
 
 func (i *sfHistogram) setDelegate(m metric.Meter) {
 	ctr, err := m.Float64Histogram(i.name, i.opts...)
@@ -275,22 +270,22 @@ func (i *sfHistogram) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *sfHistogram) Record(ctx context.Context, x float64, opts ...metric.RecordOption) {
+func (i *sfHistogram) Record(ctx context.Context, x float64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Float64Histogram).Record(ctx, x, opts...)
+		ctr.(instrument.Float64Histogram).Record(ctx, x, attrs...)
 	}
 }
 
 type siCounter struct {
-	embedded.Int64Counter
-
 	name string
-	opts []metric.Int64CounterOption
+	opts []instrument.Int64Option
 
-	delegate atomic.Value //metric.Int64Counter
+	delegate atomic.Value //instrument.Int64Counter
+
+	instrument.Synchronous
 }
 
-var _ metric.Int64Counter = (*siCounter)(nil)
+var _ instrument.Int64Counter = (*siCounter)(nil)
 
 func (i *siCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64Counter(i.name, i.opts...)
@@ -301,22 +296,22 @@ func (i *siCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *siCounter) Add(ctx context.Context, x int64, opts ...metric.AddOption) {
+func (i *siCounter) Add(ctx context.Context, x int64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Int64Counter).Add(ctx, x, opts...)
+		ctr.(instrument.Int64Counter).Add(ctx, x, attrs...)
 	}
 }
 
 type siUpDownCounter struct {
-	embedded.Int64UpDownCounter
-
 	name string
-	opts []metric.Int64UpDownCounterOption
+	opts []instrument.Int64Option
 
-	delegate atomic.Value //metric.Int64UpDownCounter
+	delegate atomic.Value //instrument.Int64UpDownCounter
+
+	instrument.Synchronous
 }
 
-var _ metric.Int64UpDownCounter = (*siUpDownCounter)(nil)
+var _ instrument.Int64UpDownCounter = (*siUpDownCounter)(nil)
 
 func (i *siUpDownCounter) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64UpDownCounter(i.name, i.opts...)
@@ -327,22 +322,22 @@ func (i *siUpDownCounter) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *siUpDownCounter) Add(ctx context.Context, x int64, opts ...metric.AddOption) {
+func (i *siUpDownCounter) Add(ctx context.Context, x int64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Int64UpDownCounter).Add(ctx, x, opts...)
+		ctr.(instrument.Int64UpDownCounter).Add(ctx, x, attrs...)
 	}
 }
 
 type siHistogram struct {
-	embedded.Int64Histogram
-
 	name string
-	opts []metric.Int64HistogramOption
+	opts []instrument.Int64Option
 
-	delegate atomic.Value //metric.Int64Histogram
+	delegate atomic.Value //instrument.Int64Histogram
+
+	instrument.Synchronous
 }
 
-var _ metric.Int64Histogram = (*siHistogram)(nil)
+var _ instrument.Int64Histogram = (*siHistogram)(nil)
 
 func (i *siHistogram) setDelegate(m metric.Meter) {
 	ctr, err := m.Int64Histogram(i.name, i.opts...)
@@ -353,8 +348,8 @@ func (i *siHistogram) setDelegate(m metric.Meter) {
 	i.delegate.Store(ctr)
 }
 
-func (i *siHistogram) Record(ctx context.Context, x int64, opts ...metric.RecordOption) {
+func (i *siHistogram) Record(ctx context.Context, x int64, attrs ...attribute.KeyValue) {
 	if ctr := i.delegate.Load(); ctr != nil {
-		ctr.(metric.Int64Histogram).Record(ctx, x, opts...)
+		ctr.(instrument.Int64Histogram).Record(ctx, x, attrs...)
 	}
 }

vendor/go.opentelemetry.io/otel/metric/internal/global/meter.go

@@ -21,7 +21,7 @@
 
 	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/metric/embedded"
+	"go.opentelemetry.io/otel/metric/instrument"
 )
 
 // meterProvider is a placeholder for a configured SDK MeterProvider.
@@ -29,8 +29,6 @@
 // All MeterProvider functionality is forwarded to a delegate once
 // configured.
 type meterProvider struct {
-	embedded.MeterProvider
-
 	mtx    sync.Mutex
 	meters map[il]*meter
 
@@ -102,8 +100,6 @@ func (p *meterProvider) Meter(name string, opts ...metric.MeterOption) metric.Me
 // All Meter functionality is forwarded to a delegate once configured.
 // Otherwise, all functionality is forwarded to a NoopMeter.
 type meter struct {
-	embedded.Meter
-
 	name string
 	opts []metric.MeterOption
 
@@ -146,7 +142,7 @@ func (m *meter) setDelegate(provider metric.MeterProvider) {
 	m.registry.Init()
 }
 
-func (m *meter) Int64Counter(name string, options ...metric.Int64CounterOption) (metric.Int64Counter, error) {
+func (m *meter) Int64Counter(name string, options ...instrument.Int64Option) (instrument.Int64Counter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64Counter(name, options...)
 	}
@@ -157,7 +153,7 @@ func (m *meter) Int64Counter(name string, options ...metric.Int64CounterOption)
 	return i, nil
 }
 
-func (m *meter) Int64UpDownCounter(name string, options ...metric.Int64UpDownCounterOption) (metric.Int64UpDownCounter, error) {
+func (m *meter) Int64UpDownCounter(name string, options ...instrument.Int64Option) (instrument.Int64UpDownCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64UpDownCounter(name, options...)
 	}
@@ -168,7 +164,7 @@ func (m *meter) Int64UpDownCounter(name string, options ...metric.Int64UpDownCou
 	return i, nil
 }
 
-func (m *meter) Int64Histogram(name string, options ...metric.Int64HistogramOption) (metric.Int64Histogram, error) {
+func (m *meter) Int64Histogram(name string, options ...instrument.Int64Option) (instrument.Int64Histogram, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64Histogram(name, options...)
 	}
@@ -179,7 +175,7 @@ func (m *meter) Int64Histogram(name string, options ...metric.Int64HistogramOpti
 	return i, nil
 }
 
-func (m *meter) Int64ObservableCounter(name string, options ...metric.Int64ObservableCounterOption) (metric.Int64ObservableCounter, error) {
+func (m *meter) Int64ObservableCounter(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64ObservableCounter(name, options...)
 	}
@@ -190,7 +186,7 @@ func (m *meter) Int64ObservableCounter(name string, options ...metric.Int64Obser
 	return i, nil
 }
 
-func (m *meter) Int64ObservableUpDownCounter(name string, options ...metric.Int64ObservableUpDownCounterOption) (metric.Int64ObservableUpDownCounter, error) {
+func (m *meter) Int64ObservableUpDownCounter(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableUpDownCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64ObservableUpDownCounter(name, options...)
 	}
@@ -201,7 +197,7 @@ func (m *meter) Int64ObservableUpDownCounter(name string, options ...metric.Int6
 	return i, nil
 }
 
-func (m *meter) Int64ObservableGauge(name string, options ...metric.Int64ObservableGaugeOption) (metric.Int64ObservableGauge, error) {
+func (m *meter) Int64ObservableGauge(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableGauge, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Int64ObservableGauge(name, options...)
 	}
@@ -212,7 +208,7 @@ func (m *meter) Int64ObservableGauge(name string, options ...metric.Int64Observa
 	return i, nil
 }
 
-func (m *meter) Float64Counter(name string, options ...metric.Float64CounterOption) (metric.Float64Counter, error) {
+func (m *meter) Float64Counter(name string, options ...instrument.Float64Option) (instrument.Float64Counter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64Counter(name, options...)
 	}
@@ -223,7 +219,7 @@ func (m *meter) Float64Counter(name string, options ...metric.Float64CounterOpti
 	return i, nil
 }
 
-func (m *meter) Float64UpDownCounter(name string, options ...metric.Float64UpDownCounterOption) (metric.Float64UpDownCounter, error) {
+func (m *meter) Float64UpDownCounter(name string, options ...instrument.Float64Option) (instrument.Float64UpDownCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64UpDownCounter(name, options...)
 	}
@@ -234,7 +230,7 @@ func (m *meter) Float64UpDownCounter(name string, options ...metric.Float64UpDow
 	return i, nil
 }
 
-func (m *meter) Float64Histogram(name string, options ...metric.Float64HistogramOption) (metric.Float64Histogram, error) {
+func (m *meter) Float64Histogram(name string, options ...instrument.Float64Option) (instrument.Float64Histogram, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64Histogram(name, options...)
 	}
@@ -245,7 +241,7 @@ func (m *meter) Float64Histogram(name string, options ...metric.Float64Histogram
 	return i, nil
 }
 
-func (m *meter) Float64ObservableCounter(name string, options ...metric.Float64ObservableCounterOption) (metric.Float64ObservableCounter, error) {
+func (m *meter) Float64ObservableCounter(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64ObservableCounter(name, options...)
 	}
@@ -256,7 +252,7 @@ func (m *meter) Float64ObservableCounter(name string, options ...metric.Float64O
 	return i, nil
 }
 
-func (m *meter) Float64ObservableUpDownCounter(name string, options ...metric.Float64ObservableUpDownCounterOption) (metric.Float64ObservableUpDownCounter, error) {
+func (m *meter) Float64ObservableUpDownCounter(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableUpDownCounter, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64ObservableUpDownCounter(name, options...)
 	}
@@ -267,7 +263,7 @@ func (m *meter) Float64ObservableUpDownCounter(name string, options ...metric.Fl
 	return i, nil
 }
 
-func (m *meter) Float64ObservableGauge(name string, options ...metric.Float64ObservableGaugeOption) (metric.Float64ObservableGauge, error) {
+func (m *meter) Float64ObservableGauge(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableGauge, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		return del.Float64ObservableGauge(name, options...)
 	}
@@ -279,7 +275,7 @@ func (m *meter) Float64ObservableGauge(name string, options ...metric.Float64Obs
 }
 
 // RegisterCallback captures the function that will be called during Collect.
-func (m *meter) RegisterCallback(f metric.Callback, insts ...metric.Observable) (metric.Registration, error) {
+func (m *meter) RegisterCallback(f metric.Callback, insts ...instrument.Asynchronous) (metric.Registration, error) {
 	if del, ok := m.delegate.Load().(metric.Meter); ok {
 		insts = unwrapInstruments(insts)
 		return del.RegisterCallback(f, insts...)
@@ -300,11 +296,11 @@ func (m *meter) RegisterCallback(f metric.Callback, insts ...metric.Observable)
 }
 
 type wrapped interface {
-	unwrap() metric.Observable
+	unwrap() instrument.Asynchronous
 }
 
-func unwrapInstruments(instruments []metric.Observable) []metric.Observable {
+func unwrapInstruments(instruments []instrument.Asynchronous) []instrument.Asynchronous {
-	out := make([]metric.Observable, 0, len(instruments))
+	out := make([]instrument.Asynchronous, 0, len(instruments))
 
 	for _, inst := range instruments {
 		if in, ok := inst.(wrapped); ok {
@@ -318,9 +314,7 @@ func unwrapInstruments(instruments []metric.Observable) []metric.Observable {
 }
 
 type registration struct {
-	embedded.Registration
+	instruments []instrument.Asynchronous
-
-	instruments []metric.Observable
 	function    metric.Callback
 
 	unreg   func() error

vendor/go.opentelemetry.io/otel/metric/meter.go

@@ -17,91 +17,80 @@
 import (
 	"context"
 
-	"go.opentelemetry.io/otel/metric/embedded"
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric/instrument"
 )
 
 // MeterProvider provides access to named Meter instances, for instrumenting
-// an application or package.
+// an application or library.
 //
-// Warning: Methods may be added to this interface in minor releases. See
+// Warning: methods may be added to this interface in minor releases.
-// package documentation on API implementation for information on how to set
-// default behavior for unimplemented methods.
 type MeterProvider interface {
-	embedded.MeterProvider
+	// Meter creates an instance of a `Meter` interface. The name must be the
-
+	// name of the library providing instrumentation. This name may be the same
-	// Meter returns a new Meter with the provided name and configuration.
+	// as the instrumented code only if that code provides built-in
-	//
+	// instrumentation. If the name is empty, then a implementation defined
-	// A Meter should be scoped at most to a single package. The name needs to
+	// default name will be used instead.
-	// be unique so it does not collide with other names used by
-	// an application, nor other applications. To achieve this, the import path
-	// of the instrumentation package is recommended to be used as name.
-	//
-	// If the name is empty, then an implementation defined default name will
-	// be used instead.
 	Meter(name string, opts ...MeterOption) Meter
 }
 
 // Meter provides access to instrument instances for recording metrics.
 //
-// Warning: Methods may be added to this interface in minor releases. See
+// Warning: methods may be added to this interface in minor releases.
-// package documentation on API implementation for information on how to set
-// default behavior for unimplemented methods.
 type Meter interface {
-	embedded.Meter
-
 	// Int64Counter returns a new instrument identified by name and configured
 	// with options. The instrument is used to synchronously record increasing
 	// int64 measurements during a computational operation.
-	Int64Counter(name string, options ...Int64CounterOption) (Int64Counter, error)
+	Int64Counter(name string, options ...instrument.Int64Option) (instrument.Int64Counter, error)
 	// Int64UpDownCounter returns a new instrument identified by name and
 	// configured with options. The instrument is used to synchronously record
 	// int64 measurements during a computational operation.
-	Int64UpDownCounter(name string, options ...Int64UpDownCounterOption) (Int64UpDownCounter, error)
+	Int64UpDownCounter(name string, options ...instrument.Int64Option) (instrument.Int64UpDownCounter, error)
 	// Int64Histogram returns a new instrument identified by name and
 	// configured with options. The instrument is used to synchronously record
 	// the distribution of int64 measurements during a computational operation.
-	Int64Histogram(name string, options ...Int64HistogramOption) (Int64Histogram, error)
+	Int64Histogram(name string, options ...instrument.Int64Option) (instrument.Int64Histogram, error)
 	// Int64ObservableCounter returns a new instrument identified by name and
 	// configured with options. The instrument is used to asynchronously record
 	// increasing int64 measurements once per a measurement collection cycle.
-	Int64ObservableCounter(name string, options ...Int64ObservableCounterOption) (Int64ObservableCounter, error)
+	Int64ObservableCounter(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableCounter, error)
 	// Int64ObservableUpDownCounter returns a new instrument identified by name
 	// and configured with options. The instrument is used to asynchronously
 	// record int64 measurements once per a measurement collection cycle.
-	Int64ObservableUpDownCounter(name string, options ...Int64ObservableUpDownCounterOption) (Int64ObservableUpDownCounter, error)
+	Int64ObservableUpDownCounter(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableUpDownCounter, error)
 	// Int64ObservableGauge returns a new instrument identified by name and
 	// configured with options. The instrument is used to asynchronously record
 	// instantaneous int64 measurements once per a measurement collection
 	// cycle.
-	Int64ObservableGauge(name string, options ...Int64ObservableGaugeOption) (Int64ObservableGauge, error)
+	Int64ObservableGauge(name string, options ...instrument.Int64ObserverOption) (instrument.Int64ObservableGauge, error)
 
 	// Float64Counter returns a new instrument identified by name and
 	// configured with options. The instrument is used to synchronously record
 	// increasing float64 measurements during a computational operation.
-	Float64Counter(name string, options ...Float64CounterOption) (Float64Counter, error)
+	Float64Counter(name string, options ...instrument.Float64Option) (instrument.Float64Counter, error)
 	// Float64UpDownCounter returns a new instrument identified by name and
 	// configured with options. The instrument is used to synchronously record
 	// float64 measurements during a computational operation.
-	Float64UpDownCounter(name string, options ...Float64UpDownCounterOption) (Float64UpDownCounter, error)
+	Float64UpDownCounter(name string, options ...instrument.Float64Option) (instrument.Float64UpDownCounter, error)
 	// Float64Histogram returns a new instrument identified by name and
 	// configured with options. The instrument is used to synchronously record
 	// the distribution of float64 measurements during a computational
 	// operation.
-	Float64Histogram(name string, options ...Float64HistogramOption) (Float64Histogram, error)
+	Float64Histogram(name string, options ...instrument.Float64Option) (instrument.Float64Histogram, error)
 	// Float64ObservableCounter returns a new instrument identified by name and
 	// configured with options. The instrument is used to asynchronously record
 	// increasing float64 measurements once per a measurement collection cycle.
-	Float64ObservableCounter(name string, options ...Float64ObservableCounterOption) (Float64ObservableCounter, error)
+	Float64ObservableCounter(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableCounter, error)
 	// Float64ObservableUpDownCounter returns a new instrument identified by
 	// name and configured with options. The instrument is used to
 	// asynchronously record float64 measurements once per a measurement
 	// collection cycle.
-	Float64ObservableUpDownCounter(name string, options ...Float64ObservableUpDownCounterOption) (Float64ObservableUpDownCounter, error)
+	Float64ObservableUpDownCounter(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableUpDownCounter, error)
 	// Float64ObservableGauge returns a new instrument identified by name and
 	// configured with options. The instrument is used to asynchronously record
 	// instantaneous float64 measurements once per a measurement collection
 	// cycle.
-	Float64ObservableGauge(name string, options ...Float64ObservableGaugeOption) (Float64ObservableGauge, error)
+	Float64ObservableGauge(name string, options ...instrument.Float64ObserverOption) (instrument.Float64ObservableGauge, error)
 
 	// RegisterCallback registers f to be called during the collection of a
 	// measurement cycle.
@@ -114,12 +103,12 @@ type Meter interface {
 	//
 	// If no instruments are passed, f should not be registered nor called
 	// during collection.
-	RegisterCallback(f Callback, instruments ...Observable) (Registration, error)
+	RegisterCallback(f Callback, instruments ...instrument.Asynchronous) (Registration, error)
 }
 
 // Callback is a function registered with a Meter that makes observations for
 // the set of instruments it is registered with. The Observer parameter is used
-// to record measurement observations for these instruments.
+// to record measurment observations for these instruments.
 //
 // The function needs to complete in a finite amount of time and the deadline
 // of the passed context is expected to be honored.
@@ -132,28 +121,16 @@ type Meter interface {
 type Callback func(context.Context, Observer) error
 
 // Observer records measurements for multiple instruments in a Callback.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// package documentation on API implementation for information on how to set
-// default behavior for unimplemented methods.
 type Observer interface {
-	embedded.Observer
+	// ObserveFloat64 records the float64 value with attributes for obsrv.
-
+	ObserveFloat64(obsrv instrument.Float64Observable, value float64, attributes ...attribute.KeyValue)
-	// ObserveFloat64 records the float64 value for obsrv.
+	// ObserveInt64 records the int64 value with attributes for obsrv.
-	ObserveFloat64(obsrv Float64Observable, value float64, opts ...ObserveOption)
+	ObserveInt64(obsrv instrument.Int64Observable, value int64, attributes ...attribute.KeyValue)
-	// ObserveInt64 records the int64 value for obsrv.
-	ObserveInt64(obsrv Int64Observable, value int64, opts ...ObserveOption)
 }
 
 // Registration is an token representing the unique registration of a callback
 // for a set of instruments with a Meter.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// package documentation on API implementation for information on how to set
-// default behavior for unimplemented methods.
 type Registration interface {
-	embedded.Registration
-
 	// Unregister removes the callback registration from a Meter.
 	//
 	// This method needs to be idempotent and concurrent safe.

vendor/go.opentelemetry.io/otel/metric/noop.go

@@ -0,0 +1,143 @@
+// Copyright The OpenTelemetry Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package metric // import "go.opentelemetry.io/otel/metric"
+
+import (
+	"context"
+
+	"go.opentelemetry.io/otel/attribute"
+	"go.opentelemetry.io/otel/metric/instrument"
+)
+
+// NewNoopMeterProvider creates a MeterProvider that does not record any metrics.
+func NewNoopMeterProvider() MeterProvider {
+	return noopMeterProvider{}
+}
+
+type noopMeterProvider struct{}
+
+func (noopMeterProvider) Meter(string, ...MeterOption) Meter {
+	return noopMeter{}
+}
+
+// NewNoopMeter creates a Meter that does not record any metrics.
+func NewNoopMeter() Meter {
+	return noopMeter{}
+}
+
+type noopMeter struct{}
+
+func (noopMeter) Int64Counter(string, ...instrument.Int64Option) (instrument.Int64Counter, error) {
+	return nonrecordingSyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Int64UpDownCounter(string, ...instrument.Int64Option) (instrument.Int64UpDownCounter, error) {
+	return nonrecordingSyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Int64Histogram(string, ...instrument.Int64Option) (instrument.Int64Histogram, error) {
+	return nonrecordingSyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Int64ObservableCounter(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableCounter, error) {
+	return nonrecordingAsyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Int64ObservableUpDownCounter(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableUpDownCounter, error) {
+	return nonrecordingAsyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Int64ObservableGauge(string, ...instrument.Int64ObserverOption) (instrument.Int64ObservableGauge, error) {
+	return nonrecordingAsyncInt64Instrument{}, nil
+}
+
+func (noopMeter) Float64Counter(string, ...instrument.Float64Option) (instrument.Float64Counter, error) {
+	return nonrecordingSyncFloat64Instrument{}, nil
+}
+
+func (noopMeter) Float64UpDownCounter(string, ...instrument.Float64Option) (instrument.Float64UpDownCounter, error) {
+	return nonrecordingSyncFloat64Instrument{}, nil
+}
+
+func (noopMeter) Float64Histogram(string, ...instrument.Float64Option) (instrument.Float64Histogram, error) {
+	return nonrecordingSyncFloat64Instrument{}, nil
+}
+
+func (noopMeter) Float64ObservableCounter(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableCounter, error) {
+	return nonrecordingAsyncFloat64Instrument{}, nil
+}
+
+func (noopMeter) Float64ObservableUpDownCounter(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableUpDownCounter, error) {
+	return nonrecordingAsyncFloat64Instrument{}, nil
+}
+
+func (noopMeter) Float64ObservableGauge(string, ...instrument.Float64ObserverOption) (instrument.Float64ObservableGauge, error) {
+	return nonrecordingAsyncFloat64Instrument{}, nil
+}
+
+// RegisterCallback creates a register callback that does not record any metrics.
+func (noopMeter) RegisterCallback(Callback, ...instrument.Asynchronous) (Registration, error) {
+	return noopReg{}, nil
+}
+
+type noopReg struct{}
+
+func (noopReg) Unregister() error { return nil }
+
+type nonrecordingAsyncFloat64Instrument struct {
+	instrument.Float64Observable
+}
+
+var (
+	_ instrument.Float64ObservableCounter       = nonrecordingAsyncFloat64Instrument{}
+	_ instrument.Float64ObservableUpDownCounter = nonrecordingAsyncFloat64Instrument{}
+	_ instrument.Float64ObservableGauge         = nonrecordingAsyncFloat64Instrument{}
+)
+
+type nonrecordingAsyncInt64Instrument struct {
+	instrument.Int64Observable
+}
+
+var (
+	_ instrument.Int64ObservableCounter       = nonrecordingAsyncInt64Instrument{}
+	_ instrument.Int64ObservableUpDownCounter = nonrecordingAsyncInt64Instrument{}
+	_ instrument.Int64ObservableGauge         = nonrecordingAsyncInt64Instrument{}
+)
+
+type nonrecordingSyncFloat64Instrument struct {
+	instrument.Synchronous
+}
+
+var (
+	_ instrument.Float64Counter       = nonrecordingSyncFloat64Instrument{}
+	_ instrument.Float64UpDownCounter = nonrecordingSyncFloat64Instrument{}
+	_ instrument.Float64Histogram     = nonrecordingSyncFloat64Instrument{}
+)
+
+func (nonrecordingSyncFloat64Instrument) Add(context.Context, float64, ...attribute.KeyValue)    {}
+func (nonrecordingSyncFloat64Instrument) Record(context.Context, float64, ...attribute.KeyValue) {}
+
+type nonrecordingSyncInt64Instrument struct {
+	instrument.Synchronous
+}
+
+var (
+	_ instrument.Int64Counter       = nonrecordingSyncInt64Instrument{}
+	_ instrument.Int64UpDownCounter = nonrecordingSyncInt64Instrument{}
+	_ instrument.Int64Histogram     = nonrecordingSyncInt64Instrument{}
+)
+
+func (nonrecordingSyncInt64Instrument) Add(context.Context, int64, ...attribute.KeyValue)    {}
+func (nonrecordingSyncInt64Instrument) Record(context.Context, int64, ...attribute.KeyValue) {}

vendor/go.opentelemetry.io/otel/metric/syncfloat64.go

@@ -1,162 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metric // import "go.opentelemetry.io/otel/metric"
-
-import (
-	"context"
-
-	"go.opentelemetry.io/otel/metric/embedded"
-)
-
-// Float64Counter is an instrument that records increasing float64 values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64Counter interface {
-	embedded.Float64Counter
-
-	// Add records a change to the counter.
-	Add(ctx context.Context, incr float64, opts ...AddOption)
-}
-
-// Float64CounterConfig contains options for synchronous counter instruments that
-// record int64 values.
-type Float64CounterConfig struct {
-	description string
-	unit        string
-}
-
-// NewFloat64CounterConfig returns a new [Float64CounterConfig] with all opts
-// applied.
-func NewFloat64CounterConfig(opts ...Float64CounterOption) Float64CounterConfig {
-	var config Float64CounterConfig
-	for _, o := range opts {
-		config = o.applyFloat64Counter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64CounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64CounterConfig) Unit() string {
-	return c.unit
-}
-
-// Float64CounterOption applies options to a [Float64CounterConfig]. See
-// [Option] for other options that can be used as a Float64CounterOption.
-type Float64CounterOption interface {
-	applyFloat64Counter(Float64CounterConfig) Float64CounterConfig
-}
-
-// Float64UpDownCounter is an instrument that records increasing or decreasing
-// float64 values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64UpDownCounter interface {
-	embedded.Float64UpDownCounter
-
-	// Add records a change to the counter.
-	Add(ctx context.Context, incr float64, opts ...AddOption)
-}
-
-// Float64UpDownCounterConfig contains options for synchronous counter
-// instruments that record int64 values.
-type Float64UpDownCounterConfig struct {
-	description string
-	unit        string
-}
-
-// NewFloat64UpDownCounterConfig returns a new [Float64UpDownCounterConfig]
-// with all opts applied.
-func NewFloat64UpDownCounterConfig(opts ...Float64UpDownCounterOption) Float64UpDownCounterConfig {
-	var config Float64UpDownCounterConfig
-	for _, o := range opts {
-		config = o.applyFloat64UpDownCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64UpDownCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64UpDownCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Float64UpDownCounterOption applies options to a
-// [Float64UpDownCounterConfig]. See [Option] for other options that can be
-// used as a Float64UpDownCounterOption.
-type Float64UpDownCounterOption interface {
-	applyFloat64UpDownCounter(Float64UpDownCounterConfig) Float64UpDownCounterConfig
-}
-
-// Float64Histogram is an instrument that records a distribution of float64
-// values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Float64Histogram interface {
-	embedded.Float64Histogram
-
-	// Record adds an additional value to the distribution.
-	Record(ctx context.Context, incr float64, opts ...RecordOption)
-}
-
-// Float64HistogramConfig contains options for synchronous counter instruments
-// that record int64 values.
-type Float64HistogramConfig struct {
-	description string
-	unit        string
-}
-
-// NewFloat64HistogramConfig returns a new [Float64HistogramConfig] with all
-// opts applied.
-func NewFloat64HistogramConfig(opts ...Float64HistogramOption) Float64HistogramConfig {
-	var config Float64HistogramConfig
-	for _, o := range opts {
-		config = o.applyFloat64Histogram(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Float64HistogramConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Float64HistogramConfig) Unit() string {
-	return c.unit
-}
-
-// Float64HistogramOption applies options to a [Float64HistogramConfig]. See
-// [Option] for other options that can be used as a Float64HistogramOption.
-type Float64HistogramOption interface {
-	applyFloat64Histogram(Float64HistogramConfig) Float64HistogramConfig
-}

vendor/go.opentelemetry.io/otel/metric/syncint64.go

@@ -1,162 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package metric // import "go.opentelemetry.io/otel/metric"
-
-import (
-	"context"
-
-	"go.opentelemetry.io/otel/metric/embedded"
-)
-
-// Int64Counter is an instrument that records increasing int64 values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64Counter interface {
-	embedded.Int64Counter
-
-	// Add records a change to the counter.
-	Add(ctx context.Context, incr int64, opts ...AddOption)
-}
-
-// Int64CounterConfig contains options for synchronous counter instruments that
-// record int64 values.
-type Int64CounterConfig struct {
-	description string
-	unit        string
-}
-
-// NewInt64CounterConfig returns a new [Int64CounterConfig] with all opts
-// applied.
-func NewInt64CounterConfig(opts ...Int64CounterOption) Int64CounterConfig {
-	var config Int64CounterConfig
-	for _, o := range opts {
-		config = o.applyInt64Counter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64CounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64CounterConfig) Unit() string {
-	return c.unit
-}
-
-// Int64CounterOption applies options to a [Int64CounterConfig]. See [Option]
-// for other options that can be used as an Int64CounterOption.
-type Int64CounterOption interface {
-	applyInt64Counter(Int64CounterConfig) Int64CounterConfig
-}
-
-// Int64UpDownCounter is an instrument that records increasing or decreasing
-// int64 values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64UpDownCounter interface {
-	embedded.Int64UpDownCounter
-
-	// Add records a change to the counter.
-	Add(ctx context.Context, incr int64, opts ...AddOption)
-}
-
-// Int64UpDownCounterConfig contains options for synchronous counter
-// instruments that record int64 values.
-type Int64UpDownCounterConfig struct {
-	description string
-	unit        string
-}
-
-// NewInt64UpDownCounterConfig returns a new [Int64UpDownCounterConfig] with
-// all opts applied.
-func NewInt64UpDownCounterConfig(opts ...Int64UpDownCounterOption) Int64UpDownCounterConfig {
-	var config Int64UpDownCounterConfig
-	for _, o := range opts {
-		config = o.applyInt64UpDownCounter(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64UpDownCounterConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64UpDownCounterConfig) Unit() string {
-	return c.unit
-}
-
-// Int64UpDownCounterOption applies options to a [Int64UpDownCounterConfig].
-// See [Option] for other options that can be used as an
-// Int64UpDownCounterOption.
-type Int64UpDownCounterOption interface {
-	applyInt64UpDownCounter(Int64UpDownCounterConfig) Int64UpDownCounterConfig
-}
-
-// Int64Histogram is an instrument that records a distribution of int64
-// values.
-//
-// Warning: Methods may be added to this interface in minor releases. See
-// [go.opentelemetry.io/otel/metric] package documentation on API
-// implementation for information on how to set default behavior for
-// unimplemented methods.
-type Int64Histogram interface {
-	embedded.Int64Histogram
-
-	// Record adds an additional value to the distribution.
-	Record(ctx context.Context, incr int64, opts ...RecordOption)
-}
-
-// Int64HistogramConfig contains options for synchronous counter instruments
-// that record int64 values.
-type Int64HistogramConfig struct {
-	description string
-	unit        string
-}
-
-// NewInt64HistogramConfig returns a new [Int64HistogramConfig] with all opts
-// applied.
-func NewInt64HistogramConfig(opts ...Int64HistogramOption) Int64HistogramConfig {
-	var config Int64HistogramConfig
-	for _, o := range opts {
-		config = o.applyInt64Histogram(config)
-	}
-	return config
-}
-
-// Description returns the configured description.
-func (c Int64HistogramConfig) Description() string {
-	return c.description
-}
-
-// Unit returns the configured unit.
-func (c Int64HistogramConfig) Unit() string {
-	return c.unit
-}
-
-// Int64HistogramOption applies options to a [Int64HistogramConfig]. See
-// [Option] for other options that can be used as an Int64HistogramOption.
-type Int64HistogramOption interface {
-	applyInt64Histogram(Int64HistogramConfig) Int64HistogramConfig
-}

vendor/go.opentelemetry.io/otel/sdk/internal/env/env.go

@@ -70,8 +70,8 @@
 // returned.
 func firstInt(defaultValue int, keys ...string) int {
 	for _, key := range keys {
-		value := os.Getenv(key)
+		value, ok := os.LookupEnv(key)
-		if value == "" {
+		if !ok {
 			continue
 		}
 
@@ -88,10 +88,10 @@ func firstInt(defaultValue int, keys ...string) int {
 }
 
 // IntEnvOr returns the int value of the environment variable with name key if
-// it exists, it is not empty, and the value is an int. Otherwise, defaultValue is returned.
+// it exists and the value is an int. Otherwise, defaultValue is returned.
 func IntEnvOr(key string, defaultValue int) int {
-	value := os.Getenv(key)
+	value, ok := os.LookupEnv(key)
-	if value == "" {
+	if !ok {
 		return defaultValue
 	}
 

vendor/go.opentelemetry.io/otel/sdk/internal/internal.go

@@ -14,7 +14,16 @@
 
 package internal // import "go.opentelemetry.io/otel/sdk/internal"
 
-import "time"
+import (
+	"fmt"
+	"time"
+
+	"go.opentelemetry.io/otel"
+)
+
+// UserAgent is the user agent to be added to the outgoing
+// requests from the exporters.
+var UserAgent = fmt.Sprintf("opentelemetry-go/%s", otel.Version())
 
 // MonotonicEndTime returns the end time at present
 // but offset from start, monotonically.

vendor/go.opentelemetry.io/otel/sdk/resource/auto.go

@@ -18,7 +18,6 @@
 	"context"
 	"errors"
 	"fmt"
-	"strings"
 )
 
 var (
@@ -46,65 +45,28 @@ type Detector interface {
 // Detect calls all input detectors sequentially and merges each result with the previous one.
 // It returns the merged error too.
 func Detect(ctx context.Context, detectors ...Detector) (*Resource, error) {
-	r := new(Resource)
+	var autoDetectedRes *Resource
-	return r, detect(ctx, r, detectors)
+	var errInfo []string
-}
-
-// detect runs all detectors using ctx and merges the result into res. This
-// assumes res is allocated and not nil, it will panic otherwise.
-func detect(ctx context.Context, res *Resource, detectors []Detector) error {
-	var (
-		r    *Resource
-		errs detectErrs
-		err  error
-	)
-
 	for _, detector := range detectors {
 		if detector == nil {
 			continue
 		}
-		r, err = detector.Detect(ctx)
+		res, err := detector.Detect(ctx)
 		if err != nil {
-			errs = append(errs, err)
+			errInfo = append(errInfo, err.Error())
 			if !errors.Is(err, ErrPartialResource) {
 				continue
 			}
 		}
-		r, err = Merge(res, r)
+		autoDetectedRes, err = Merge(autoDetectedRes, res)
 		if err != nil {
-			errs = append(errs, err)
+			errInfo = append(errInfo, err.Error())
 		}
-		*res = *r
 	}
 
-	if len(errs) == 0 {
+	var aggregatedError error
-		return nil
+	if len(errInfo) > 0 {
+		aggregatedError = fmt.Errorf("detecting resources: %s", errInfo)
 	}
-	return errs
+	return autoDetectedRes, aggregatedError
-}
-
-type detectErrs []error
-
-func (e detectErrs) Error() string {
-	errStr := make([]string, len(e))
-	for i, err := range e {
-		errStr[i] = fmt.Sprintf("* %s", err)
-	}
-
-	format := "%d errors occurred detecting resource:\n\t%s"
-	return fmt.Sprintf(format, len(e), strings.Join(errStr, "\n\t"))
-}
-
-func (e detectErrs) Unwrap() error {
-	switch len(e) {
-	case 0:
-		return nil
-	case 1:
-		return e[0]
-	}
-	return e[1:]
-}
-
-func (e detectErrs) Is(target error) bool {
-	return len(e) != 0 && errors.Is(e[0], target)
 }

vendor/go.opentelemetry.io/otel/sdk/resource/builtin.go

@@ -20,8 +20,8 @@
 	"os"
 	"path/filepath"
 
+	"go.opentelemetry.io/otel"
 	"go.opentelemetry.io/otel/attribute"
-	"go.opentelemetry.io/otel/sdk"
 	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
 )
 
@@ -62,7 +62,7 @@ func (telemetrySDK) Detect(context.Context) (*Resource, error) {
 		semconv.SchemaURL,
 		semconv.TelemetrySDKName("opentelemetry"),
 		semconv.TelemetrySDKLanguageGo,
-		semconv.TelemetrySDKVersion(sdk.Version()),
+		semconv.TelemetrySDKVersion(otel.Version()),
 	), nil
 }
 

vendor/go.opentelemetry.io/otel/sdk/resource/config.go

@@ -71,11 +71,6 @@ func WithHost() Option {
 	return WithDetectors(host{})
 }
 
-// WithHostID adds host ID information to the configured resource.
-func WithHostID() Option {
-	return WithDetectors(hostIDDetector{})
-}
-
 // WithTelemetrySDK adds TelemetrySDK version info to the configured resource.
 func WithTelemetrySDK() Option {
 	return WithDetectors(telemetrySDK{})

vendor/go.opentelemetry.io/otel/sdk/resource/host_id.go

@@ -1,120 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//	http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-import (
-	"context"
-	"errors"
-	"strings"
-
-	semconv "go.opentelemetry.io/otel/semconv/v1.17.0"
-)
-
-type hostIDProvider func() (string, error)
-
-var defaultHostIDProvider hostIDProvider = platformHostIDReader.read
-
-var hostID = defaultHostIDProvider
-
-type hostIDReader interface {
-	read() (string, error)
-}
-
-type fileReader func(string) (string, error)
-
-type commandExecutor func(string, ...string) (string, error)
-
-// hostIDReaderBSD implements hostIDReader.
-type hostIDReaderBSD struct {
-	execCommand commandExecutor
-	readFile    fileReader
-}
-
-// read attempts to read the machine-id from /etc/hostid. If not found it will
-// execute `kenv -q smbios.system.uuid`. If neither location yields an id an
-// error will be returned.
-func (r *hostIDReaderBSD) read() (string, error) {
-	if result, err := r.readFile("/etc/hostid"); err == nil {
-		return strings.TrimSpace(result), nil
-	}
-
-	if result, err := r.execCommand("kenv", "-q", "smbios.system.uuid"); err == nil {
-		return strings.TrimSpace(result), nil
-	}
-
-	return "", errors.New("host id not found in: /etc/hostid or kenv")
-}
-
-// hostIDReaderDarwin implements hostIDReader.
-type hostIDReaderDarwin struct {
-	execCommand commandExecutor
-}
-
-// read executes `ioreg -rd1 -c "IOPlatformExpertDevice"` and parses host id
-// from the IOPlatformUUID line. If the command fails or the uuid cannot be
-// parsed an error will be returned.
-func (r *hostIDReaderDarwin) read() (string, error) {
-	result, err := r.execCommand("ioreg", "-rd1", "-c", "IOPlatformExpertDevice")
-	if err != nil {
-		return "", err
-	}
-
-	lines := strings.Split(result, "\n")
-	for _, line := range lines {
-		if strings.Contains(line, "IOPlatformUUID") {
-			parts := strings.Split(line, " = ")
-			if len(parts) == 2 {
-				return strings.Trim(parts[1], "\""), nil
-			}
-			break
-		}
-	}
-
-	return "", errors.New("could not parse IOPlatformUUID")
-}
-
-type hostIDReaderLinux struct {
-	readFile fileReader
-}
-
-// read attempts to read the machine-id from /etc/machine-id followed by
-// /var/lib/dbus/machine-id. If neither location yields an ID an error will
-// be returned.
-func (r *hostIDReaderLinux) read() (string, error) {
-	if result, err := r.readFile("/etc/machine-id"); err == nil {
-		return strings.TrimSpace(result), nil
-	}
-
-	if result, err := r.readFile("/var/lib/dbus/machine-id"); err == nil {
-		return strings.TrimSpace(result), nil
-	}
-
-	return "", errors.New("host id not found in: /etc/machine-id or /var/lib/dbus/machine-id")
-}
-
-type hostIDDetector struct{}
-
-// Detect returns a *Resource containing the platform specific host id.
-func (hostIDDetector) Detect(ctx context.Context) (*Resource, error) {
-	hostID, err := hostID()
-	if err != nil {
-		return nil, err
-	}
-
-	return NewWithAttributes(
-		semconv.SchemaURL,
-		semconv.HostID(hostID),
-	), nil
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_bsd.go

@@ -1,23 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build dragonfly || freebsd || netbsd || openbsd || solaris
-// +build dragonfly freebsd netbsd openbsd solaris
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-var platformHostIDReader hostIDReader = &hostIDReaderBSD{
-	execCommand: execCommand,
-	readFile:    readFile,
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_darwin.go

@@ -1,19 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-var platformHostIDReader hostIDReader = &hostIDReaderDarwin{
-	execCommand: execCommand,
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_exec.go

@@ -1,29 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build bsd || darwin
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-import "os/exec"
-
-func execCommand(name string, arg ...string) (string, error) {
-	cmd := exec.Command(name, arg...)
-	b, err := cmd.Output()
-	if err != nil {
-		return "", err
-	}
-
-	return string(b), nil
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_linux.go

@@ -1,22 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build linux
-// +build linux
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-var platformHostIDReader hostIDReader = &hostIDReaderLinux{
-	readFile: readFile,
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_readfile.go

@@ -1,28 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build bsd || linux
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-import "os"
-
-func readFile(filename string) (string, error) {
-	b, err := os.ReadFile(filename)
-	if err != nil {
-		return "", nil
-	}
-
-	return string(b), nil
-}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_unsupported.go

@@ -1,36 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build !darwin
-// +build !dragonfly
-// +build !freebsd
-// +build !linux
-// +build !netbsd
-// +build !openbsd
-// +build !solaris
-// +build !windows
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-// hostIDReaderUnsupported is a placeholder implementation for operating systems
-// for which this project currently doesn't support host.id
-// attribute detection. See build tags declaration early on this file
-// for a list of unsupported OSes.
-type hostIDReaderUnsupported struct{}
-
-func (*hostIDReaderUnsupported) read() (string, error) {
-	return "<unknown>", nil
-}
-
-var platformHostIDReader hostIDReader = &hostIDReaderUnsupported{}

vendor/go.opentelemetry.io/otel/sdk/resource/host_id_windows.go

@@ -1,48 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-//go:build windows
-// +build windows
-
-package resource // import "go.opentelemetry.io/otel/sdk/resource"
-
-import (
-	"golang.org/x/sys/windows/registry"
-)
-
-// implements hostIDReader
-type hostIDReaderWindows struct{}
-
-// read reads MachineGuid from the windows registry key:
-// SOFTWARE\Microsoft\Cryptography
-func (*hostIDReaderWindows) read() (string, error) {
-	k, err := registry.OpenKey(
-		registry.LOCAL_MACHINE, `SOFTWARE\Microsoft\Cryptography`,
-		registry.QUERY_VALUE|registry.WOW64_64KEY,
-	)
-
-	if err != nil {
-		return "", err
-	}
-	defer k.Close()
-
-	guid, _, err := k.GetStringValue("MachineGuid")
-	if err != nil {
-		return "", err
-	}
-
-	return guid, nil
-}
-
-var platformHostIDReader hostIDReader = &hostIDReaderWindows{}

vendor/go.opentelemetry.io/otel/sdk/resource/resource.go

@@ -17,6 +17,7 @@
 import (
 	"context"
 	"errors"
+	"fmt"
 	"sync"
 
 	"go.opentelemetry.io/otel"
@@ -50,8 +51,17 @@ func New(ctx context.Context, opts ...Option) (*Resource, error) {
 		cfg = opt.apply(cfg)
 	}
 
-	r := &Resource{schemaURL: cfg.schemaURL}
+	resource, err := Detect(ctx, cfg.detectors...)
-	return r, detect(ctx, r, cfg.detectors)
+
+	var err2 error
+	resource, err2 = Merge(resource, &Resource{schemaURL: cfg.schemaURL})
+	if err == nil {
+		err = err2
+	} else if err2 != nil {
+		err = fmt.Errorf("detecting resources: %s", []string{err.Error(), err2.Error()})
+	}
+
+	return resource, err
 }
 
 // NewWithAttributes creates a resource from attrs and associates the resource with a

vendor/go.opentelemetry.io/otel/sdk/trace/batch_span_processor.go

@@ -91,7 +91,7 @@ type batchSpanProcessor struct {
 // NewBatchSpanProcessor creates a new SpanProcessor that will send completed
 // span batches to the exporter with the supplied options.
 //
-// If the exporter is nil, the span processor will perform no action.
+// If the exporter is nil, the span processor will preform no action.
 func NewBatchSpanProcessor(exporter SpanExporter, options ...BatchSpanProcessorOption) SpanProcessor {
 	maxQueueSize := env.BatchSpanProcessorMaxQueueSize(DefaultMaxQueueSize)
 	maxExportBatchSize := env.BatchSpanProcessorMaxExportBatchSize(DefaultMaxExportBatchSize)

vendor/go.opentelemetry.io/otel/sdk/trace/provider.go

@@ -75,9 +75,8 @@ func (cfg tracerProviderConfig) MarshalLog() interface{} {
 type TracerProvider struct {
 	mu             sync.Mutex
 	namedTracer    map[instrumentation.Scope]*tracer
-	spanProcessors atomic.Pointer[spanProcessorStates]
+	spanProcessors atomic.Value
-
+	isShutdown     bool
-	isShutdown atomic.Bool
 
 	// These fields are not protected by the lock mu. They are assumed to be
 	// immutable after creation of the TracerProvider.
@@ -120,11 +119,11 @@ func NewTracerProvider(opts ...TracerProviderOption) *TracerProvider {
 	}
 	global.Info("TracerProvider created", "config", o)
 
-	spss := make(spanProcessorStates, 0, len(o.processors))
+	spss := spanProcessorStates{}
 	for _, sp := range o.processors {
 		spss = append(spss, newSpanProcessorState(sp))
 	}
-	tp.spanProcessors.Store(&spss)
+	tp.spanProcessors.Store(spss)
 
 	return tp
 }
@@ -137,11 +136,10 @@ func NewTracerProvider(opts ...TracerProviderOption) *TracerProvider {
 //
 // This method is safe to be called concurrently.
 func (p *TracerProvider) Tracer(name string, opts ...trace.TracerOption) trace.Tracer {
-	// This check happens before the mutex is acquired to avoid deadlocking if Tracer() is called from within Shutdown().
-	if p.isShutdown.Load() {
-		return trace.NewNoopTracerProvider().Tracer(name, opts...)
-	}
 	c := trace.NewTracerConfig(opts...)
+
+	p.mu.Lock()
+	defer p.mu.Unlock()
 	if name == "" {
 		name = defaultTracerName
 	}
@@ -150,74 +148,44 @@ func (p *TracerProvider) Tracer(name string, opts ...trace.TracerOption) trace.T
 		Version:   c.InstrumentationVersion(),
 		SchemaURL: c.SchemaURL(),
 	}
-
+	t, ok := p.namedTracer[is]
-	t, ok := func() (trace.Tracer, bool) {
-		p.mu.Lock()
-		defer p.mu.Unlock()
-		// Must check the flag after acquiring the mutex to avoid returning a valid tracer if Shutdown() ran
-		// after the first check above but before we acquired the mutex.
-		if p.isShutdown.Load() {
-			return trace.NewNoopTracerProvider().Tracer(name, opts...), true
-		}
-		t, ok := p.namedTracer[is]
-		if !ok {
-			t = &tracer{
-				provider:             p,
-				instrumentationScope: is,
-			}
-			p.namedTracer[is] = t
-		}
-		return t, ok
-	}()
 	if !ok {
-		// This code is outside the mutex to not hold the lock while calling third party logging code:
+		t = &tracer{
-		// - That code may do slow things like I/O, which would prolong the duration the lock is held,
+			provider:             p,
-		//   slowing down all tracing consumers.
+			instrumentationScope: is,
-		// - Logging code may be instrumented with tracing and deadlock because it could try
+		}
-		//   acquiring the same non-reentrant mutex.
+		p.namedTracer[is] = t
-		global.Info("Tracer created", "name", name, "version", is.Version, "schemaURL", is.SchemaURL)
+		global.Info("Tracer created", "name", name, "version", c.InstrumentationVersion(), "schemaURL", c.SchemaURL())
 	}
 	return t
 }
 
 // RegisterSpanProcessor adds the given SpanProcessor to the list of SpanProcessors.
 func (p *TracerProvider) RegisterSpanProcessor(sp SpanProcessor) {
-	// This check prevents calls during a shutdown.
-	if p.isShutdown.Load() {
-		return
-	}
 	p.mu.Lock()
 	defer p.mu.Unlock()
-	// This check prevents calls after a shutdown.
+	if p.isShutdown {
-	if p.isShutdown.Load() {
 		return
 	}
-
+	newSPS := spanProcessorStates{}
-	current := p.getSpanProcessors()
+	newSPS = append(newSPS, p.spanProcessors.Load().(spanProcessorStates)...)
-	newSPS := make(spanProcessorStates, 0, len(current)+1)
-	newSPS = append(newSPS, current...)
 	newSPS = append(newSPS, newSpanProcessorState(sp))
-	p.spanProcessors.Store(&newSPS)
+	p.spanProcessors.Store(newSPS)
 }
 
 // UnregisterSpanProcessor removes the given SpanProcessor from the list of SpanProcessors.
 func (p *TracerProvider) UnregisterSpanProcessor(sp SpanProcessor) {
-	// This check prevents calls during a shutdown.
-	if p.isShutdown.Load() {
-		return
-	}
 	p.mu.Lock()
 	defer p.mu.Unlock()
-	// This check prevents calls after a shutdown.
+	if p.isShutdown {
-	if p.isShutdown.Load() {
 		return
 	}
-	old := p.getSpanProcessors()
+	old := p.spanProcessors.Load().(spanProcessorStates)
 	if len(old) == 0 {
 		return
 	}
-	spss := make(spanProcessorStates, len(old))
+	spss := spanProcessorStates{}
-	copy(spss, old)
+	spss = append(spss, old...)
 
 	// stop the span processor if it is started and remove it from the list
 	var stopOnce *spanProcessorState
@@ -241,13 +209,13 @@ func (p *TracerProvider) UnregisterSpanProcessor(sp SpanProcessor) {
 	spss[len(spss)-1] = nil
 	spss = spss[:len(spss)-1]
 
-	p.spanProcessors.Store(&spss)
+	p.spanProcessors.Store(spss)
 }
 
 // ForceFlush immediately exports all spans that have not yet been exported for
 // all the registered span processors.
 func (p *TracerProvider) ForceFlush(ctx context.Context) error {
-	spss := p.getSpanProcessors()
+	spss := p.spanProcessors.Load().(spanProcessorStates)
 	if len(spss) == 0 {
 		return nil
 	}
@@ -268,21 +236,18 @@ func (p *TracerProvider) ForceFlush(ctx context.Context) error {
 
 // Shutdown shuts down TracerProvider. All registered span processors are shut down
 // in the order they were registered and any held computational resources are released.
-// After Shutdown is called, all methods are no-ops.
 func (p *TracerProvider) Shutdown(ctx context.Context) error {
-	// This check prevents deadlocks in case of recursive shutdown.
+	spss := p.spanProcessors.Load().(spanProcessorStates)
-	if p.isShutdown.Load() {
+	if len(spss) == 0 {
-		return nil
-	}
-	p.mu.Lock()
-	defer p.mu.Unlock()
-	// This check prevents calls after a shutdown has already been done concurrently.
-	if !p.isShutdown.CompareAndSwap(false, true) { // did toggle?
 		return nil
 	}
 
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	p.isShutdown = true
+
 	var retErr error
-	for _, sps := range p.getSpanProcessors() {
+	for _, sps := range spss {
 		select {
 		case <-ctx.Done():
 			return ctx.Err()
@@ -302,14 +267,10 @@ func (p *TracerProvider) Shutdown(ctx context.Context) error {
 			}
 		}
 	}
-	p.spanProcessors.Store(&spanProcessorStates{})
+	p.spanProcessors.Store(spanProcessorStates{})
 	return retErr
 }
 
-func (p *TracerProvider) getSpanProcessors() spanProcessorStates {
-	return *(p.spanProcessors.Load())
-}
-
 // TracerProviderOption configures a TracerProvider.
 type TracerProviderOption interface {
 	apply(tracerProviderConfig) tracerProviderConfig

vendor/go.opentelemetry.io/otel/sdk/trace/simple_span_processor.go

@@ -19,13 +19,12 @@
 	"sync"
 
 	"go.opentelemetry.io/otel"
-	"go.opentelemetry.io/otel/internal/global"
 )
 
 // simpleSpanProcessor is a SpanProcessor that synchronously sends all
 // completed Spans to a trace.Exporter immediately.
 type simpleSpanProcessor struct {
-	exporterMu sync.Mutex
+	exporterMu sync.RWMutex
 	exporter   SpanExporter
 	stopOnce   sync.Once
 }
@@ -44,8 +43,6 @@ func NewSimpleSpanProcessor(exporter SpanExporter) SpanProcessor {
 	ssp := &simpleSpanProcessor{
 		exporter: exporter,
 	}
-	global.Warn("SimpleSpanProcessor is not recommended for production use, consider using BatchSpanProcessor instead.")
-
 	return ssp
 }
 
@@ -54,8 +51,8 @@ func (ssp *simpleSpanProcessor) OnStart(context.Context, ReadWriteSpan) {}
 
 // OnEnd immediately exports a ReadOnlySpan.
 func (ssp *simpleSpanProcessor) OnEnd(s ReadOnlySpan) {
-	ssp.exporterMu.Lock()
+	ssp.exporterMu.RLock()
-	defer ssp.exporterMu.Unlock()
+	defer ssp.exporterMu.RUnlock()
 
 	if ssp.exporter != nil && s.SpanContext().TraceFlags().IsSampled() {
 		if err := ssp.exporter.ExportSpans(context.Background(), []ReadOnlySpan{s}); err != nil {

vendor/go.opentelemetry.io/otel/sdk/trace/span.go

@@ -302,7 +302,7 @@ func (s *recordingSpan) addOverCapAttrs(limit int, attrs []attribute.KeyValue) {
 // most a length of limit. Each string slice value is truncated in this fashion
 // (the slice length itself is unaffected).
 //
-// No truncation is performed for a negative limit.
+// No truncation is perfromed for a negative limit.
 func truncateAttr(limit int, attr attribute.KeyValue) attribute.KeyValue {
 	if limit < 0 {
 		return attr
@@ -410,7 +410,7 @@ func (s *recordingSpan) End(options ...trace.SpanEndOption) {
 	}
 	s.mu.Unlock()
 
-	sps := s.tracer.provider.getSpanProcessors()
+	sps := s.tracer.provider.spanProcessors.Load().(spanProcessorStates)
 	if len(sps) == 0 {
 		return
 	}

vendor/go.opentelemetry.io/otel/sdk/trace/span_exporter.go

@@ -38,7 +38,7 @@ type SpanExporter interface {
 	// must never be done outside of a new major release.
 
 	// Shutdown notifies the exporter of a pending halt to operations. The
-	// exporter is expected to perform any cleanup or synchronization it
+	// exporter is expected to preform any cleanup or synchronization it
 	// requires while honoring all timeouts and cancellations contained in
 	// the passed context.
 	Shutdown(ctx context.Context) error

vendor/go.opentelemetry.io/otel/sdk/trace/span_processor.go

@@ -62,11 +62,11 @@ type SpanProcessor interface {
 
 type spanProcessorState struct {
 	sp    SpanProcessor
-	state sync.Once
+	state *sync.Once
 }
 
 func newSpanProcessorState(sp SpanProcessor) *spanProcessorState {
-	return &spanProcessorState{sp: sp}
+	return &spanProcessorState{sp: sp, state: &sync.Once{}}
 }
 
 type spanProcessorStates []*spanProcessorState

vendor/go.opentelemetry.io/otel/sdk/trace/tracer.go

@@ -51,7 +51,7 @@ func (tr *tracer) Start(ctx context.Context, name string, options ...trace.SpanS
 
 	s := tr.newSpan(ctx, name, &config)
 	if rw, ok := s.(ReadWriteSpan); ok && s.IsRecording() {
-		sps := tr.provider.getSpanProcessors()
+		sps := tr.provider.spanProcessors.Load().(spanProcessorStates)
 		for _, sp := range sps {
 			sp.sp.OnStart(ctx, rw)
 		}

vendor/go.opentelemetry.io/otel/sdk/version.go

@@ -1,20 +0,0 @@
-// Copyright The OpenTelemetry Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package sdk // import "go.opentelemetry.io/otel/sdk"
-
-// Version is the current release version of the OpenTelemetry SDK in use.
-func Version() string {
-	return "1.15.1"
-}

vendor/go.opentelemetry.io/otel/semconv/v1.17.0/httpconv/http.go

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-// Package httpconv provides OpenTelemetry HTTP semantic conventions for
+// Package httpconv provides OpenTelemetry semantic convetions for the net/http
-// tracing telemetry.
+// package from the standard library.
 package httpconv // import "go.opentelemetry.io/otel/semconv/v1.17.0/httpconv"
 
 import (
@@ -58,10 +58,9 @@
 	}
 )
 
-// ClientResponse returns trace attributes for an HTTP response received by a
+// ClientResponse returns attributes for an HTTP response received by a client
-// client from a server. It will return the following attributes if the related
+// from a server. It will return the following attributes if the related values
-// values are defined in resp: "http.status.code",
+// are defined in resp: "http.status.code", "http.response_content_length".
-// "http.response_content_length".
 //
 // This does not add all OpenTelemetry required attributes for an HTTP event,
 // it assumes ClientRequest was used to create the span with a complete set of
@@ -73,8 +72,8 @@ func ClientResponse(resp *http.Response) []attribute.KeyValue {
 	return hc.ClientResponse(resp)
 }
 
-// ClientRequest returns trace attributes for an HTTP request made by a client.
+// ClientRequest returns attributes for an HTTP request made by a client. The
-// The following attributes are always returned: "http.url", "http.flavor",
+// following attributes are always returned: "http.url", "http.flavor",
 // "http.method", "net.peer.name". The following attributes are returned if the
 // related values are defined in req: "net.peer.port", "http.user_agent",
 // "http.request_content_length", "enduser.id".
@@ -88,8 +87,7 @@ func ClientStatus(code int) (codes.Code, string) {
 	return hc.ClientStatus(code)
 }
 
-// ServerRequest returns trace attributes for an HTTP request received by a
+// ServerRequest returns attributes for an HTTP request received by a server.
-// server.
 //
 // The server must be the primary server name if it is known. For example this
 // would be the ServerName directive

vendor/go.opentelemetry.io/otel/trace/noop.go

@@ -37,7 +37,7 @@ func (p noopTracerProvider) Tracer(string, ...TracerOption) Tracer {
 	return noopTracer{}
 }
 
-// noopTracer is an implementation of Tracer that performs no operations.
+// noopTracer is an implementation of Tracer that preforms no operations.
 type noopTracer struct{}
 
 var _ Tracer = noopTracer{}
@@ -53,7 +53,7 @@ func (t noopTracer) Start(ctx context.Context, name string, _ ...SpanStartOption
 	return ContextWithSpan(ctx, span), span
 }
 
-// noopSpan is an implementation of Span that performs no operations.
+// noopSpan is an implementation of Span that preforms no operations.
 type noopSpan struct{}
 
 var _ Span = noopSpan{}

vendor/go.opentelemetry.io/otel/version.go

@@ -16,5 +16,5 @@
 
 // Version is the current release version of OpenTelemetry in use.
 func Version() string {
-	return "1.15.1"
+	return "1.14.0"
 }

vendor/go.opentelemetry.io/otel/versions.yaml

@@ -14,7 +14,7 @@
 
 module-sets:
   stable-v1:
-    version: v1.15.1
+    version: v1.14.0
     modules:
       - go.opentelemetry.io/otel
       - go.opentelemetry.io/otel/bridge/opentracing
@@ -26,16 +26,16 @@ module-sets:
       - go.opentelemetry.io/otel/example/passthrough
       - go.opentelemetry.io/otel/example/zipkin
       - go.opentelemetry.io/otel/exporters/jaeger
-      - go.opentelemetry.io/otel/exporters/otlp/internal/retry
+      - go.opentelemetry.io/otel/exporters/zipkin
       - go.opentelemetry.io/otel/exporters/otlp/otlptrace
       - go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc
       - go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp
+      - go.opentelemetry.io/otel/exporters/otlp/internal/retry
       - go.opentelemetry.io/otel/exporters/stdout/stdouttrace
-      - go.opentelemetry.io/otel/exporters/zipkin
-      - go.opentelemetry.io/otel/sdk
       - go.opentelemetry.io/otel/trace
+      - go.opentelemetry.io/otel/sdk
   experimental-metrics:
-    version: v0.38.1
+    version: v0.37.0
     modules:
       - go.opentelemetry.io/otel/example/opencensus
       - go.opentelemetry.io/otel/example/prometheus

vendor/modules.txt

@@ -731,10 +731,10 @@ github.com/uptrace/bun/dialect/pgdialect
 # github.com/uptrace/bun/dialect/sqlitedialect v1.1.13
 ## explicit; go 1.18
 github.com/uptrace/bun/dialect/sqlitedialect
-# github.com/uptrace/bun/extra/bunotel v1.1.13
+# github.com/uptrace/bun/extra/bunotel v1.1.12
 ## explicit; go 1.18
 github.com/uptrace/bun/extra/bunotel
-# github.com/uptrace/opentelemetry-go-extra/otelsql v0.2.0
+# github.com/uptrace/opentelemetry-go-extra/otelsql v0.1.21
 ## explicit; go 1.18
 github.com/uptrace/opentelemetry-go-extra/otelsql
 # github.com/vmihailenco/msgpack/v5 v5.3.5
@@ -760,8 +760,8 @@ github.com/yuin/goldmark/renderer
 github.com/yuin/goldmark/renderer/html
 github.com/yuin/goldmark/text
 github.com/yuin/goldmark/util
-# go.opentelemetry.io/otel v1.15.1
+# go.opentelemetry.io/otel v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel
 go.opentelemetry.io/otel/attribute
 go.opentelemetry.io/otel/baggage
@@ -779,42 +779,39 @@ go.opentelemetry.io/otel/semconv/v1.10.0
 go.opentelemetry.io/otel/semconv/v1.12.0
 go.opentelemetry.io/otel/semconv/v1.17.0
 go.opentelemetry.io/otel/semconv/v1.17.0/httpconv
-# go.opentelemetry.io/otel/exporters/jaeger v1.15.1
+# go.opentelemetry.io/otel/exporters/jaeger v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/exporters/jaeger
 go.opentelemetry.io/otel/exporters/jaeger/internal/gen-go/agent
 go.opentelemetry.io/otel/exporters/jaeger/internal/gen-go/jaeger
 go.opentelemetry.io/otel/exporters/jaeger/internal/gen-go/zipkincore
 go.opentelemetry.io/otel/exporters/jaeger/internal/third_party/thrift/lib/go/thrift
-# go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.15.1
+# go.opentelemetry.io/otel/exporters/otlp/internal/retry v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/exporters/otlp/internal/retry
-# go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.15.1
+# go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/exporters/otlp/otlptrace
-go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/otlpconfig
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/internal/tracetransform
-# go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.15.1
+# go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc
-# go.opentelemetry.io/otel/metric v0.38.1
+# go.opentelemetry.io/otel/metric v0.37.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/metric
-go.opentelemetry.io/otel/metric/embedded
 go.opentelemetry.io/otel/metric/global
 go.opentelemetry.io/otel/metric/instrument
 go.opentelemetry.io/otel/metric/internal/global
-# go.opentelemetry.io/otel/sdk v1.15.1
+# go.opentelemetry.io/otel/sdk v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
-go.opentelemetry.io/otel/sdk
 go.opentelemetry.io/otel/sdk/instrumentation
 go.opentelemetry.io/otel/sdk/internal
 go.opentelemetry.io/otel/sdk/internal/env
 go.opentelemetry.io/otel/sdk/resource
 go.opentelemetry.io/otel/sdk/trace
-# go.opentelemetry.io/otel/trace v1.15.1
+# go.opentelemetry.io/otel/trace v1.14.0
-## explicit; go 1.19
+## explicit; go 1.18
 go.opentelemetry.io/otel/trace
 # go.opentelemetry.io/proto/otlp v0.19.0
 ## explicit; go 1.14