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ad0f7a5305
Upgrade to Go 1.20.5, Hydra v2 SDK, rules-go v0.44.2 (with proper resolves), protobuf v25.3 and mass upgrade of Go dependencies.
270 lines
9.6 KiB
Go
270 lines
9.6 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 metric // import "go.opentelemetry.io/otel/metric"
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import (
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"context"
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"go.opentelemetry.io/otel/metric/embedded"
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)
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// Int64Observable describes a set of instruments used asynchronously to record
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// int64 measurements once per collection cycle. Observations of these
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// instruments are only made within a callback.
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//
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// Warning: Methods may be added to this interface in minor releases.
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type Int64Observable interface {
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Observable
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int64Observable()
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}
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// Int64ObservableCounter is an instrument used to asynchronously record
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// increasing int64 measurements once per collection cycle. Observations are
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// only made within a callback for this instrument. The value observed is
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// assumed the to be the cumulative sum of the count.
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//
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// Warning: Methods may be added to this interface in minor releases. See
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// package documentation on API implementation for information on how to set
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// default behavior for unimplemented methods.
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type Int64ObservableCounter interface {
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// Users of the interface can ignore this. This embedded type is only used
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// by implementations of this interface. See the "API Implementations"
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// section of the package documentation for more information.
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embedded.Int64ObservableCounter
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Int64Observable
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}
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// Int64ObservableCounterConfig contains options for asynchronous counter
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// instruments that record int64 values.
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type Int64ObservableCounterConfig struct {
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description string
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unit string
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callbacks []Int64Callback
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}
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// NewInt64ObservableCounterConfig returns a new [Int64ObservableCounterConfig]
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// with all opts applied.
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func NewInt64ObservableCounterConfig(opts ...Int64ObservableCounterOption) Int64ObservableCounterConfig {
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var config Int64ObservableCounterConfig
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for _, o := range opts {
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config = o.applyInt64ObservableCounter(config)
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}
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return config
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}
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// Description returns the configured description.
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func (c Int64ObservableCounterConfig) Description() string {
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return c.description
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}
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// Unit returns the configured unit.
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func (c Int64ObservableCounterConfig) Unit() string {
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return c.unit
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}
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// Callbacks returns the configured callbacks.
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func (c Int64ObservableCounterConfig) Callbacks() []Int64Callback {
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return c.callbacks
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}
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// Int64ObservableCounterOption applies options to a
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// [Int64ObservableCounterConfig]. See [Int64ObservableOption] and
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// [InstrumentOption] for other options that can be used as an
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// Int64ObservableCounterOption.
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type Int64ObservableCounterOption interface {
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applyInt64ObservableCounter(Int64ObservableCounterConfig) Int64ObservableCounterConfig
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}
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// Int64ObservableUpDownCounter is an instrument used to asynchronously record
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// int64 measurements once per collection cycle. Observations are only made
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// within a callback for this instrument. The value observed is assumed the to
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// be the cumulative sum of the count.
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//
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// Warning: Methods may be added to this interface in minor releases. See
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// package documentation on API implementation for information on how to set
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// default behavior for unimplemented methods.
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type Int64ObservableUpDownCounter interface {
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// Users of the interface can ignore this. This embedded type is only used
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// by implementations of this interface. See the "API Implementations"
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// section of the package documentation for more information.
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embedded.Int64ObservableUpDownCounter
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Int64Observable
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}
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// Int64ObservableUpDownCounterConfig contains options for asynchronous counter
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// instruments that record int64 values.
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type Int64ObservableUpDownCounterConfig struct {
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description string
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unit string
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callbacks []Int64Callback
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}
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// NewInt64ObservableUpDownCounterConfig returns a new
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// [Int64ObservableUpDownCounterConfig] with all opts applied.
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func NewInt64ObservableUpDownCounterConfig(opts ...Int64ObservableUpDownCounterOption) Int64ObservableUpDownCounterConfig {
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var config Int64ObservableUpDownCounterConfig
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for _, o := range opts {
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config = o.applyInt64ObservableUpDownCounter(config)
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}
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return config
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}
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// Description returns the configured description.
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func (c Int64ObservableUpDownCounterConfig) Description() string {
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return c.description
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}
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// Unit returns the configured unit.
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func (c Int64ObservableUpDownCounterConfig) Unit() string {
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return c.unit
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}
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// Callbacks returns the configured callbacks.
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func (c Int64ObservableUpDownCounterConfig) Callbacks() []Int64Callback {
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return c.callbacks
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}
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// Int64ObservableUpDownCounterOption applies options to a
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// [Int64ObservableUpDownCounterConfig]. See [Int64ObservableOption] and
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// [InstrumentOption] for other options that can be used as an
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// Int64ObservableUpDownCounterOption.
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type Int64ObservableUpDownCounterOption interface {
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applyInt64ObservableUpDownCounter(Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig
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}
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// Int64ObservableGauge is an instrument used to asynchronously record
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// instantaneous int64 measurements once per collection cycle. Observations are
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// only made within a callback for this instrument.
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//
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// Warning: Methods may be added to this interface in minor releases. See
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// package documentation on API implementation for information on how to set
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// default behavior for unimplemented methods.
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type Int64ObservableGauge interface {
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// Users of the interface can ignore this. This embedded type is only used
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// by implementations of this interface. See the "API Implementations"
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// section of the package documentation for more information.
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embedded.Int64ObservableGauge
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Int64Observable
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}
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// Int64ObservableGaugeConfig contains options for asynchronous counter
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// instruments that record int64 values.
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type Int64ObservableGaugeConfig struct {
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description string
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unit string
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callbacks []Int64Callback
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}
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// NewInt64ObservableGaugeConfig returns a new [Int64ObservableGaugeConfig]
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// with all opts applied.
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func NewInt64ObservableGaugeConfig(opts ...Int64ObservableGaugeOption) Int64ObservableGaugeConfig {
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var config Int64ObservableGaugeConfig
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for _, o := range opts {
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config = o.applyInt64ObservableGauge(config)
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}
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return config
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}
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// Description returns the configured description.
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func (c Int64ObservableGaugeConfig) Description() string {
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return c.description
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}
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// Unit returns the configured unit.
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func (c Int64ObservableGaugeConfig) Unit() string {
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return c.unit
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}
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// Callbacks returns the configured callbacks.
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func (c Int64ObservableGaugeConfig) Callbacks() []Int64Callback {
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return c.callbacks
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}
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// Int64ObservableGaugeOption applies options to a
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// [Int64ObservableGaugeConfig]. See [Int64ObservableOption] and
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// [InstrumentOption] for other options that can be used as an
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// Int64ObservableGaugeOption.
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type Int64ObservableGaugeOption interface {
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applyInt64ObservableGauge(Int64ObservableGaugeConfig) Int64ObservableGaugeConfig
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}
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// Int64Observer is a recorder of int64 measurements.
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//
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// Warning: Methods may be added to this interface in minor releases. See
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// package documentation on API implementation for information on how to set
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// default behavior for unimplemented methods.
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type Int64Observer interface {
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// Users of the interface can ignore this. This embedded type is only used
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// by implementations of this interface. See the "API Implementations"
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// section of the package documentation for more information.
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embedded.Int64Observer
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// Observe records the int64 value.
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//
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// Use the WithAttributeSet (or, if performance is not a concern,
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// the WithAttributes) option to include measurement attributes.
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Observe(value int64, options ...ObserveOption)
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}
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// Int64Callback is a function registered with a Meter that makes observations
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// for an Int64Observerable instrument it is registered with. Calls to the
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// Int64Observer record measurement values for the Int64Observable.
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//
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// The function needs to complete in a finite amount of time and the deadline
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// of the passed context is expected to be honored.
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//
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// The function needs to make unique observations across all registered
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// Int64Callbacks. Meaning, it should not report measurements with the same
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// attributes as another Int64Callbacks also registered for the same
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// instrument.
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//
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// The function needs to be concurrent safe.
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type Int64Callback func(context.Context, Int64Observer) error
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// Int64ObservableOption applies options to int64 Observer instruments.
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type Int64ObservableOption interface {
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Int64ObservableCounterOption
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Int64ObservableUpDownCounterOption
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Int64ObservableGaugeOption
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}
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type int64CallbackOpt struct {
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cback Int64Callback
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}
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func (o int64CallbackOpt) applyInt64ObservableCounter(cfg Int64ObservableCounterConfig) Int64ObservableCounterConfig {
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cfg.callbacks = append(cfg.callbacks, o.cback)
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return cfg
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}
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func (o int64CallbackOpt) applyInt64ObservableUpDownCounter(cfg Int64ObservableUpDownCounterConfig) Int64ObservableUpDownCounterConfig {
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cfg.callbacks = append(cfg.callbacks, o.cback)
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return cfg
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}
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func (o int64CallbackOpt) applyInt64ObservableGauge(cfg Int64ObservableGaugeConfig) Int64ObservableGaugeConfig {
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cfg.callbacks = append(cfg.callbacks, o.cback)
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return cfg
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}
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// WithInt64Callback adds callback to be called for an instrument.
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func WithInt64Callback(callback Int64Callback) Int64ObservableOption {
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return int64CallbackOpt{callback}
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}
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