58 lines
1.3 KiB
PHP
58 lines
1.3 KiB
PHP
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<?php
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declare(strict_types=1);
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namespace OpenTelemetry\Context;
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/**
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* @internal
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*/
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final class ContextStorage implements ContextStorageInterface, ExecutionContextAwareInterface
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{
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public ContextStorageHead $current;
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private ContextStorageHead $main;
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/** @var array<int|string, ContextStorageHead> */
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private array $forks = [];
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public function __construct()
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{
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$this->current = $this->main = new ContextStorageHead($this);
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}
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public function fork($id): void
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{
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$this->forks[$id] = clone $this->current;
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}
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public function switch($id): void
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{
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$this->current = $this->forks[$id] ?? $this->main;
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}
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public function destroy($id): void
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{
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unset($this->forks[$id]);
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}
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public function scope(): ?ContextStorageScopeInterface
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{
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return ($this->current->node->head ?? null) === $this->current
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? $this->current->node
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: null;
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}
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public function current(): ContextInterface
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{
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return $this->current->node->context ?? Context::getRoot();
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}
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public function attach(ContextInterface $context): ContextStorageScopeInterface
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{
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return $this->current->node = new ContextStorageNode($context, $this->current, $this->current->node);
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}
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private function __clone()
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{
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}
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}
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