AggregateException.php
7 months ago
CancellationException.php
7 months ago
Coroutine.php
7 months ago
Create.php
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Each.php
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EachPromise.php
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FulfilledPromise.php
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Is.php
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Promise.php
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PromiseInterface.php
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PromisorInterface.php
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RejectedPromise.php
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RejectionException.php
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TaskQueue.php
7 months ago
TaskQueueInterface.php
7 months ago
Utils.php
7 months ago
TaskQueue.php
72 lines
| 1 | <?php |
| 2 | |
| 3 | declare(strict_types=1); |
| 4 | |
| 5 | namespace AmeliaVendor\GuzzleHttp\Promise; |
| 6 | |
| 7 | /** |
| 8 | * A task queue that executes tasks in a FIFO order. |
| 9 | * |
| 10 | * This task queue class is used to settle promises asynchronously and |
| 11 | * maintains a constant stack size. You can use the task queue asynchronously |
| 12 | * by calling the `run()` function of the global task queue in an event loop. |
| 13 | * |
| 14 | * AmeliaVendor\GuzzleHttp\Promise\Utils::queue()->run(); |
| 15 | * |
| 16 | * @final |
| 17 | */ |
| 18 | class TaskQueue implements TaskQueueInterface |
| 19 | { |
| 20 | private $enableShutdown = true; |
| 21 | private $queue = []; |
| 22 | |
| 23 | public function __construct(bool $withShutdown = true) |
| 24 | { |
| 25 | if ($withShutdown) { |
| 26 | register_shutdown_function(function (): void { |
| 27 | if ($this->enableShutdown) { |
| 28 | // Only run the tasks if an E_ERROR didn't occur. |
| 29 | $err = error_get_last(); |
| 30 | if (!$err || ($err['type'] ^ E_ERROR)) { |
| 31 | $this->run(); |
| 32 | } |
| 33 | } |
| 34 | }); |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | public function isEmpty(): bool |
| 39 | { |
| 40 | return !$this->queue; |
| 41 | } |
| 42 | |
| 43 | public function add(callable $task): void |
| 44 | { |
| 45 | $this->queue[] = $task; |
| 46 | } |
| 47 | |
| 48 | public function run(): void |
| 49 | { |
| 50 | while ($task = array_shift($this->queue)) { |
| 51 | /** @var callable $task */ |
| 52 | $task(); |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * The task queue will be run and exhausted by default when the process |
| 58 | * exits IFF the exit is not the result of a PHP E_ERROR error. |
| 59 | * |
| 60 | * You can disable running the automatic shutdown of the queue by calling |
| 61 | * this function. If you disable the task queue shutdown process, then you |
| 62 | * MUST either run the task queue (as a result of running your event loop |
| 63 | * or manually using the run() method) or wait on each outstanding promise. |
| 64 | * |
| 65 | * Note: This shutdown will occur before any destructors are triggered. |
| 66 | */ |
| 67 | public function disableShutdown(): void |
| 68 | { |
| 69 | $this->enableShutdown = false; |
| 70 | } |
| 71 | } |
| 72 |