mirror of
https://github.com/superseriousbusiness/gotosocial.git
synced 2024-11-29 23:22:45 +00:00
279 lines
13 KiB
Go
279 lines
13 KiB
Go
// Copyright The OpenTelemetry Authors
|
|
// SPDX-License-Identifier: Apache-2.0
|
|
|
|
package metric // import "go.opentelemetry.io/otel/metric"
|
|
|
|
import (
|
|
"context"
|
|
|
|
"go.opentelemetry.io/otel/metric/embedded"
|
|
)
|
|
|
|
// MeterProvider provides access to named Meter instances, for instrumenting
|
|
// an application or package.
|
|
//
|
|
// 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 MeterProvider interface {
|
|
// Users of the interface can ignore this. This embedded type is only used
|
|
// by implementations of this interface. See the "API Implementations"
|
|
// section of the package documentation for more information.
|
|
embedded.MeterProvider
|
|
|
|
// Meter returns a new Meter with the provided name and configuration.
|
|
//
|
|
// A Meter should be scoped at most to a single package. The name needs to
|
|
// 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
|
|
// package documentation on API implementation for information on how to set
|
|
// default behavior for unimplemented methods.
|
|
type Meter interface {
|
|
// Users of the interface can ignore this. This embedded type is only used
|
|
// by implementations of this interface. See the "API Implementations"
|
|
// section of the package documentation for more information.
|
|
embedded.Meter
|
|
|
|
// Int64Counter returns a new Int64Counter instrument identified by name
|
|
// and configured with options. The instrument is used to synchronously
|
|
// record increasing int64 measurements during a computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64Counter(name string, options ...Int64CounterOption) (Int64Counter, error)
|
|
|
|
// Int64UpDownCounter returns a new Int64UpDownCounter instrument
|
|
// identified by name and configured with options. The instrument is used
|
|
// to synchronously record int64 measurements during a computational
|
|
// operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64UpDownCounter(name string, options ...Int64UpDownCounterOption) (Int64UpDownCounter, error)
|
|
|
|
// Int64Histogram returns a new Int64Histogram instrument identified by
|
|
// name and configured with options. The instrument is used to
|
|
// synchronously record the distribution of int64 measurements during a
|
|
// computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64Histogram(name string, options ...Int64HistogramOption) (Int64Histogram, error)
|
|
|
|
// Int64Gauge returns a new Int64Gauge instrument identified by name and
|
|
// configured with options. The instrument is used to synchronously record
|
|
// instantaneous int64 measurements during a computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64Gauge(name string, options ...Int64GaugeOption) (Int64Gauge, error)
|
|
|
|
// Int64ObservableCounter returns a new Int64ObservableCounter identified
|
|
// by name and configured with options. The instrument is used to
|
|
// asynchronously record increasing int64 measurements once per a
|
|
// measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithInt64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64ObservableCounter(name string, options ...Int64ObservableCounterOption) (Int64ObservableCounter, error)
|
|
|
|
// Int64ObservableUpDownCounter returns a new Int64ObservableUpDownCounter
|
|
// instrument identified by name and configured with options. The
|
|
// instrument is used to asynchronously record int64 measurements once per
|
|
// a measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithInt64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64ObservableUpDownCounter(name string, options ...Int64ObservableUpDownCounterOption) (Int64ObservableUpDownCounter, error)
|
|
|
|
// Int64ObservableGauge returns a new Int64ObservableGauge instrument
|
|
// identified by name and configured with options. The instrument is used
|
|
// to asynchronously record instantaneous int64 measurements once per a
|
|
// measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithInt64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Int64ObservableGauge(name string, options ...Int64ObservableGaugeOption) (Int64ObservableGauge, error)
|
|
|
|
// Float64Counter returns a new Float64Counter instrument identified by
|
|
// name and configured with options. The instrument is used to
|
|
// synchronously record increasing float64 measurements during a
|
|
// computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64Counter(name string, options ...Float64CounterOption) (Float64Counter, error)
|
|
|
|
// Float64UpDownCounter returns a new Float64UpDownCounter instrument
|
|
// identified by name and configured with options. The instrument is used
|
|
// to synchronously record float64 measurements during a computational
|
|
// operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64UpDownCounter(name string, options ...Float64UpDownCounterOption) (Float64UpDownCounter, error)
|
|
|
|
// Float64Histogram returns a new Float64Histogram instrument identified by
|
|
// name and configured with options. The instrument is used to
|
|
// synchronously record the distribution of float64 measurements during a
|
|
// computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64Histogram(name string, options ...Float64HistogramOption) (Float64Histogram, error)
|
|
|
|
// Float64Gauge returns a new Float64Gauge instrument identified by name and
|
|
// configured with options. The instrument is used to synchronously record
|
|
// instantaneous float64 measurements during a computational operation.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64Gauge(name string, options ...Float64GaugeOption) (Float64Gauge, error)
|
|
|
|
// Float64ObservableCounter returns a new Float64ObservableCounter
|
|
// instrument identified by name and configured with options. The
|
|
// instrument is used to asynchronously record increasing float64
|
|
// measurements once per a measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithFloat64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64ObservableCounter(name string, options ...Float64ObservableCounterOption) (Float64ObservableCounter, error)
|
|
|
|
// Float64ObservableUpDownCounter returns a new
|
|
// Float64ObservableUpDownCounter instrument identified by name and
|
|
// configured with options. The instrument is used to asynchronously record
|
|
// float64 measurements once per a measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithFloat64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64ObservableUpDownCounter(name string, options ...Float64ObservableUpDownCounterOption) (Float64ObservableUpDownCounter, error)
|
|
|
|
// Float64ObservableGauge returns a new Float64ObservableGauge instrument
|
|
// identified by name and configured with options. The instrument is used
|
|
// to asynchronously record instantaneous float64 measurements once per a
|
|
// measurement collection cycle.
|
|
//
|
|
// Measurements for the returned instrument are made via a callback. Use
|
|
// the WithFloat64Callback option to register the callback here, or use the
|
|
// RegisterCallback method of this Meter to register one later. See the
|
|
// Measurements section of the package documentation for more information.
|
|
//
|
|
// The name needs to conform to the OpenTelemetry instrument name syntax.
|
|
// See the Instrument Name section of the package documentation for more
|
|
// information.
|
|
Float64ObservableGauge(name string, options ...Float64ObservableGaugeOption) (Float64ObservableGauge, error)
|
|
|
|
// RegisterCallback registers f to be called during the collection of a
|
|
// measurement cycle.
|
|
//
|
|
// If Unregister of the returned Registration is called, f needs to be
|
|
// unregistered and not called during collection.
|
|
//
|
|
// The instruments f is registered with are the only instruments that f may
|
|
// observe values for.
|
|
//
|
|
// If no instruments are passed, f should not be registered nor called
|
|
// during collection.
|
|
//
|
|
// The function f needs to be concurrent safe.
|
|
RegisterCallback(f Callback, instruments ...Observable) (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.
|
|
//
|
|
// 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
|
|
// Callbacks. Meaning, it should not report measurements for an instrument with
|
|
// the same attributes as another Callback will report.
|
|
//
|
|
// The function needs to be concurrent safe.
|
|
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 {
|
|
// Users of the interface can ignore this. This embedded type is only used
|
|
// by implementations of this interface. See the "API Implementations"
|
|
// section of the package documentation for more information.
|
|
embedded.Observer
|
|
|
|
// ObserveFloat64 records the float64 value for obsrv.
|
|
ObserveFloat64(obsrv Float64Observable, value float64, opts ...ObserveOption)
|
|
|
|
// 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 {
|
|
// Users of the interface can ignore this. This embedded type is only used
|
|
// by implementations of this interface. See the "API Implementations"
|
|
// section of the package documentation for more information.
|
|
embedded.Registration
|
|
|
|
// Unregister removes the callback registration from a Meter.
|
|
//
|
|
// This method needs to be idempotent and concurrent safe.
|
|
Unregister() error
|
|
}
|