pcntl_signal

Supported Versions: PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8

Installs a signal handler

        pcntl_signal(int $signal, callable|int $handler, bool $restart_syscalls = true): bool

laravel/framework

        pcntl_signal(SIGALRM, function () use ($job, $options) {

            if ($job) {

                $this->markJobAsFailedIfWillExceedMaxAttempts(

                    $job->getConnectionName(), $job, (int) $options->maxTries, $e = $this->maxAttemptsExceededException($job)

                );

                $this->markJobAsFailedIfWillExceedMaxExceptions(

                    $job->getConnectionName(), $job, $e

                );

                $this->markJobAsFailedIfItShouldFailOnTimeout(

                    $job->getConnectionName(), $job, $e

                );

            }

            $this->kill(static::EXIT_ERROR);

        });

        pcntl_alarm(

            max($this->timeoutForJob($job, $options), 0)

src/Illuminate/Queue/Worker.php

laravel/framework

    {

        pcntl_async_signals(true);

        pcntl_signal(SIGTERM, function () {

            $this->shouldQuit = true;

        });

        pcntl_signal(SIGUSR2, function () {

            $this->paused = true;

src/Illuminate/Queue/Worker.php

laravel/framework

            $this->shouldQuit = true;

        });

        pcntl_signal(SIGUSR2, function () {

            $this->paused = true;

        });

        pcntl_signal(SIGCONT, function () {

            $this->paused = false;

src/Illuminate/Queue/Worker.php

laravel/framework

            $this->paused = true;

        });

        pcntl_signal(SIGCONT, function () {

            $this->paused = false;

        });

    }

src/Illuminate/Queue/Worker.php

composer/composer

            @mkdir($directory, 0777, true);

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

                pcntl_async_signals(true);

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

                    $fs = new Filesystem();

                    $fs->removeDirectory($realDir);

                    exit(130);

                });

            }

        }

src/Composer/Command/CreateProjectCommand.php

composer/composer

    {

        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 (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

            pcntl_async_signals(true);

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

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

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

        }

        $this->file = Factory::getComposerFile();

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);

                });

            }

            $shutdownRegistered = true;

src/Composer/Console/Application.php

composer/composer

        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);

                $runCleanup();

                if (!in_array($prevHandler, array(SIG_DFL, SIG_IGN), true)) {

                    call_user_func($prevHandler, $sig);

                }

                exit(130);

            });

        }

        if ($handleInterruptsWindows) {

            $windowsHandler = function ($event) use ($runCleanup, $io) {

src/Composer/Installer/InstallationManager.php

composer/composer

            $runCleanup();

            if ($handleInterruptsUnix) {

                pcntl_signal(SIGINT, $prevHandler);

            }

            if ($handleInterruptsWindows) {

                sapi_windows_set_ctrl_handler($windowsHandler, false);

src/Composer/Installer/InstallationManager.php

composer/composer

        }

        if ($handleInterruptsUnix) {

            pcntl_signal(SIGINT, $prevHandler);

        }

        if ($handleInterruptsWindows) {

            sapi_windows_set_ctrl_handler($windowsHandler, false);

src/Composer/Installer/InstallationManager.php

reactphp/event-loop

        $this->signals->add($signal, $listener);

        if ($first) {

            \pcntl_signal($signal, array($this->signals, 'call'));

        }

    }

src/StreamSelectLoop.php

reactphp/event-loop

        $this->signals->remove($signal, $listener);

        if ($this->signals->count($signal) === 0) {

            \pcntl_signal($signal, \SIG_DFL);

        }

    }

src/StreamSelectLoop.php

reactphp/event-loop

        });

        $handled = false;

        $this->assertTrue(pcntl_signal(constant($signal), function () use (&$handled) {

            $handled = true;

        }));

        $this->forkSendSignal($signal);

tests/StreamSelectLoopTest.php