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