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Diffstat (limited to 'vendor/go.opentelemetry.io/otel/metric/asyncint64.go')
| -rw-r--r-- | vendor/go.opentelemetry.io/otel/metric/asyncint64.go | 256 |
1 files changed, 256 insertions, 0 deletions
diff --git a/vendor/go.opentelemetry.io/otel/metric/asyncint64.go b/vendor/go.opentelemetry.io/otel/metric/asyncint64.go new file mode 100644 index 000000000..a56b3d7a6 --- /dev/null +++ b/vendor/go.opentelemetry.io/otel/metric/asyncint64.go @@ -0,0 +1,256 @@ +// 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} +} |