diff options
author | Andrew Dolgov <[email protected]> | 2023-10-20 17:12:29 +0300 |
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committer | Andrew Dolgov <[email protected]> | 2023-10-20 21:13:39 +0300 |
commit | cdd7ad020e165fe680703b6d3319b908b682fb7a (patch) | |
tree | b51eb09b7b4587e8fbc5624ac8d88d28cfcd0b04 /vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php | |
parent | 45a9ff0c88cbd33892ff16ab837e9059937d656e (diff) |
jaeger-client -> opentelemetry
Diffstat (limited to 'vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php')
-rw-r--r-- | vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php b/vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php new file mode 100644 index 000000000..b7fdcf5f8 --- /dev/null +++ b/vendor/open-telemetry/sdk/Metrics/ObservableInstrumentTrait.php @@ -0,0 +1,61 @@ +<?php + +declare(strict_types=1); + +namespace OpenTelemetry\SDK\Metrics; + +use ArrayAccess; +use OpenTelemetry\API\Metrics\ObservableCallbackInterface; +use OpenTelemetry\API\Metrics\ObserverInterface; +use function OpenTelemetry\SDK\Common\Util\closure; +use function OpenTelemetry\SDK\Common\Util\weaken; +use OpenTelemetry\SDK\Metrics\MetricRegistry\MetricWriterInterface; + +/** + * @internal + */ +trait ObservableInstrumentTrait +{ + private MetricWriterInterface $writer; + private Instrument $instrument; + private ReferenceCounterInterface $referenceCounter; + private ArrayAccess $destructors; + + public function __construct( + MetricWriterInterface $writer, + Instrument $instrument, + ReferenceCounterInterface $referenceCounter, + ArrayAccess $destructors + ) { + $this->writer = $writer; + $this->instrument = $instrument; + $this->referenceCounter = $referenceCounter; + $this->destructors = $destructors; + + $this->referenceCounter->acquire(); + } + + public function __destruct() + { + $this->referenceCounter->release(); + } + + /** + * @param callable(ObserverInterface): void $callback + */ + public function observe(callable $callback): ObservableCallbackInterface + { + $callback = weaken(closure($callback), $target); + + $callbackId = $this->writer->registerCallback($callback, $this->instrument); + $this->referenceCounter->acquire(); + + $destructor = null; + if ($target) { + $destructor = $this->destructors[$target] ??= new ObservableCallbackDestructor($this->writer, $this->referenceCounter); + $destructor->callbackIds[$callbackId] = $callbackId; + } + + return new ObservableCallback($this->writer, $this->referenceCounter, $callbackId, $destructor, $target); + } +} |