PHP code example of arara / process

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

arara / process example snippets

declare(ticks=1);

use Arara\Process\Action\Callback;

$callback = new Callback(function () {
    echo "This will be executed in the background!" . PHP_EOL;
});

$callback->bind(Callback::EVENT_SUCCESS, function () {
    echo "This will be executed if the action callback was successful!" . PHP_EOL;
});

$callback->bind(Callback::EVENT_ERROR | Callback::EVENT_FAILURE, function () {
    echo "It is going to be executed if the action fails or get an error" . PHP_EOL;
});

$command = new Command('whoami');

$command = new Command('cp', array('/path/to/source', '/path/to/destination'));

$command = new Command(
    'find',
    array(
        '/path/to/dir',
        '-name' => '*',
        '-type' => 'f',
    )
);

$daemon = new Daemon(
    function (Control $control, Context $context, Daemon $daemon) {
        while (! $daemon->isDying()) {
            // Do whatever you want =)
        }
    }
);

$daemon = new Daemon(
    $callback,
    array(
        'name' => 'mydaemonname',
        'lock_dir' => __DIR__,
    )
);

$daemon->setOptions(
    array(
        'stdout' => '/tmp/daemon.stdout',
        'stderr' => '/tmp/daemon.stderr',
    )
);

$daemon->setOption('work_dir', __DIR__);

$child = new Child(
    new Daemon(function () {
        // What my daemon does...
    }),
    new Control()
);
$child->start(); // Runs the callback in the background

$child->isRunning(); // Returns TRUE if it is running or FALSE if it is not

$child->terminate(); // Sends a SIGTERM to the process

$child->kill(); // Sends a SIGKILL to the process

$child->wait();

$child->getStatus(); // Returns an Arara\Process\Control\Status instance

$child->getStatus()->getExitStatus();

$child->getStatus()->getStopSignal();

$child->getStatus()->getTerminateSignal();

$child->getStatus()->isExited();

$child->getStatus()->isSignaled();

$child->getStatus()->isStopped();

$child->getStatus()->isSuccessful();

$maxConcurrentChildren = 2;
$pool = new Pool($maxConcurrentChildren);
$pool->start();

$pool->attach(new Child(/* ... */));
$pool->attach(new Child(/* ... */));
$pool->attach(new Child(/* ... */));
$pool->attach(new Child(/* ... */));
// ...

$control = new Control();
$pid = $control->fork();// Throws RuntimeException when pcntl_fork() returns -1
if ($pid > 0) {
    echo 'Waiting on child...' . PHP_EOL;
    $control->waitProcessId($pid);
    echo 'Child finished' . PHP_EOL;
    $control->quit();
}

echo 'Child process has PID ' . $control->info()->getId() . PHP_EOL;
echo 'Child process has parent PID ' . $control->info()->getParentId() . PHP_EOL;

$control->flush(2.5); // Will try to flush current process memory and sleep by 2 and a half seconds
$control->signal()->send('kill'); // Will send SIGKILL to the current process (the child)

$control = new Control();
$applicationName = 'my_app';
$pidfile = new Pidfile($control, $applicationName);
$pidfile->initialize();

// Whatever you need here...

$pidfile->finalize();