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4.x is outdated, please check the latest version 22.x
Latest version:
pecl install openswoole-22.1.2
<?php Swoole\Coroutine::isCanceled(int $cid): bool
None
Returns true if the coroutine was successfully cancelled and false if there was a problem, use swoole_last_error() to see what went wrong.
Check if the current coroutine has been cancelled or not.
Since v4.7.0
<?php
use Swoole\Coroutine;
use Swoole\Coroutine\System;
use function Swoole\Coroutine\run;
use function Swoole\Coroutine\go;
Co\run(function()
{
$chan = new Coroutine\Channel(1);
$cid = Coroutine::getCid();
go(function() use ($cid)
{
System::usleep(2000);
assert(Coroutine::cancel($cid) === true);
});
assert($chan->push("Hello World [1]", 100) === true);
assert(Coroutine::isCanceled() === false);
assert($chan->errCode === SWOOLE_CHANNEL_OK);
assert($chan->push("Hello World [2]", 100) === false);
assert(Coroutine::isCanceled() === true);
assert($chan->errCode === SWOOLE_CHANNEL_CANCELED);
echo "Done\n";
});