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<?php
declare(strict_types=1);
namespace OpenTelemetry\SDK\Metrics;
use OpenTelemetry\SDK\Metrics\MetricRegistry\MetricWriterInterface;
/**
* @internal
*/
final class ObservableCallbackDestructor
{
/** @var array<int, int> */
public array $callbackIds = [];
private MetricWriterInterface $writer;
private ReferenceCounterInterface $referenceCounter;
public function __construct(MetricWriterInterface $writer, ReferenceCounterInterface $referenceCounter)
{
$this->writer = $writer;
$this->referenceCounter = $referenceCounter;
}
public function __destruct()
{
foreach ($this->callbackIds as $callbackId) {
$this->writer->unregisterCallback($callbackId);
$this->referenceCounter->release();
}
}
}
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