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PosixProcessControl.php

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PosixProcessControl.php

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<?php
namespace PHPCensor\ProcessControl;
/**
* Control process using the POSIX extension.
*
* @author Adirelle <adirelle@gmail.com>
*/
class PosixProcessControl implements ProcessControlInterface
{
/**
* @param int $pid
*
* @return bool
*/
public function isRunning($pid)
{
// Signal "0" is not sent to the process, but posix_kill checks the process anyway;
return posix_kill($pid, 0);
}
/**
* {@inheritdoc}
*/
public function kill($pid, $forcefully = false)
{
return posix_kill($pid, $forcefully ? 9 : 15);
}
/**
* Check whether this posix_kill is available.
*
* @return bool
*
* @internal
*/
public static function isAvailable()
{
return function_exists('posix_kill');
}
}
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