<?php

namespace Amp;

use Revolt\EventLoop;

/**
 * A TimeoutCancellation automatically requests cancellation after the timeout has elapsed.
 */
final class TimeoutCancellation implements Cancellation
{
	use ForbidCloning;
	use ForbidSerialization;

	private readonly string $watcher;
	private readonly Cancellation $cancellation;


	/**
	 * @param float  $timeout Seconds until cancellation is requested.
	 * @param string $message Message for TimeoutException. Default is "Operation timed out".
	 */
	public function __construct(float $timeout, string $message = "Operation timed out")
	{
		$this->cancellation = $source = new Internal\Cancellable;

		$trace = null; // Defined in case assertions are disabled.
		\assert((bool) ($trace = \debug_backtrace(0)));

		$this->watcher = EventLoop::delay($timeout, static function () use ($source, $message, $trace): void {
		    if ($trace) {
		        $message .= \sprintf("\r\n%s was created here: %s", self::class, Internal\formatStacktrace($trace));
		    } else {
		        $message .= \sprintf(" (Enable assertions for a backtrace of the %s creation)", self::class);
		    }

		    $source->cancel(new TimeoutException($message));
		});

		EventLoop::unreference($this->watcher);
	}


	/**
	 * Cancels the delay watcher.
	 */
	public function __destruct()
	{
		EventLoop::cancel($this->watcher);
	}


	public function subscribe(\Closure $callback): string
	{
		return $this->cancellation->subscribe($callback);
	}


	public function unsubscribe(string $id): void
	{
		$this->cancellation->unsubscribe($id);
	}


	public function isRequested(): bool
	{
		return $this->cancellation->isRequested();
	}


	public function throwIfRequested(): void
	{
		$this->cancellation->throwIfRequested();
	}
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----MzgzOTgxNTY2MDQ2NzQ2MiA1ODIzNzA0OTg4NjcxNzk2IDM3ODI4Mzk4MjYxMzY4NjI=