pcntl_async_signals

Supported Versions: PHP 7 >= 7.1.0, PHP 8

Enable/disable asynchronous signal handling or return the old setting

pcntl_async_signals(?bool $enable = null): bool

laravel/framework

    protected function listenForSignals()

    {

        pcntl_async_signals(true);

        pcntl_signal(SIGTERM, function () {

            $this->shouldQuit = true;

src/Illuminate/Queue/Worker.php

composer/composer

        if (function_exists('pcntl_async_signals') && function_exists('pcntl_signal')) {

            @mkdir($directory, 0777, true);

            if ($realDir = realpath($directory)) {

                pcntl_async_signals(true);

                pcntl_signal(SIGINT, function () use ($realDir) {

                    $fs = new Filesystem();

                    $fs->removeDirectory($realDir);

src/Composer/Command/CreateProjectCommand.php

composer/composer

    protected function execute(InputInterface $input, OutputInterface $output)

    {

        if (function_exists('pcntl_async_signals') && function_exists('pcntl_signal')) {

            pcntl_async_signals(true);

            pcntl_signal(SIGINT, array($this, 'revertComposerFile'));

            pcntl_signal(SIGTERM, array($this, 'revertComposerFile'));

            pcntl_signal(SIGHUP, array($this, 'revertComposerFile'));

src/Composer/Command/RequireCommand.php

composer/composer

        if (!$shutdownRegistered) {

            if (function_exists('pcntl_async_signals') && function_exists('pcntl_signal')) {

                pcntl_async_signals(true);

                pcntl_signal(SIGINT, function ($sig) {

                    exit(130);

                });

src/Composer/Console/Application.php

composer/composer

        $prevHandler = null;

        $windowsHandler = null;

        if ($handleInterruptsUnix) {

            pcntl_async_signals(true);

            $prevHandler = pcntl_signal_get_handler(SIGINT);

            pcntl_signal(SIGINT, function ($sig) use ($runCleanup, $prevHandler, $io) {

                $io->writeError('Received SIGINT, aborting', true, IOInterface::DEBUG);

src/Composer/Installer/InstallationManager.php

reactphp/event-loop

        if ($this->pcntl && !$this->pcntlPoll) {

            \pcntl_async_signals(true);

        }

    }

src/StreamSelectLoop.php