* Create metric API Callback type
Document the type according the OTel specification requirements.
* Update all impls of the metric API with new type
* Add changes to changelog
* Update PR number in changelog entry
* Update Meter RegisterCallback method
Return a Registration from the method that can be used by the caller to
unregister their callback.
Update documentation of the method to better explain expectations of
use and implementation.
* Update noop impl
* Update global impl
* Test global Unregister concurrent safe
* Use a map to track reg in global impl
* Update sdk impl
* Use a list for global impl
* Fix prom example
* Lint metric/meter.go
* Fix metric example
* Placeholder for changelog
* Update PR number in changelog
* Update sdk/metric/pipeline.go
Co-authored-by: Aaron Clawson <3766680+MadVikingGod@users.noreply.github.com>
* Add test unregistered callback is not called
Co-authored-by: Aaron Clawson <3766680+MadVikingGod@users.noreply.github.com>
Comment should be complete sentences outside of lists with sentence
fragments. This adds the godot linter to check these complete sentences
end with punctuation. If they do not, running fix will append a period.
* Fix#2772: allow non-comparable global types
The global MeterProvider, TracerProvider, and TextMapPropagator should
not panic when they are set to a non-comparable implementation of each.
* Add changes to changelog
* No lint unused field for testing
* WIP: add global API
* WIP
* Add a global meter.
* moved global access out of metric because of loop imports
* fix linting issues
* remove changes from other lint failures.
* Add changelog
* Fixes for comments.
Changed name of global API.
Added stop to all race tests go routine.
Added race tests for other instruments.
* Apply suggestions from code review
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Consolidated instrument tests
* fixed lint, and removed unneeded type checking
* change require's to asserts.
* Update misspelling
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>
* Fix meter race test.
* Copy SetTracerProvider logic.
* Fix global test for panic.
* Fix linting error
* bump testify version
* moved changelog into unreleased
Co-authored-by: Aaron Clawson <MadVikingGod@users.noreply.github.com>
Co-authored-by: Tyler Yahn <MrAlias@users.noreply.github.com>