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50 lines (44 loc) · 1.03 KB
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<?php
namespace PHPCensor\ProcessControl;
/**
* Control processes using the "ps" and "kill" commands.
*
* @author Adirelle <adirelle@gmail.com>
*/
class UnixProcessControl implements ProcessControlInterface
{
/**
* Check process using the "ps" command.
*
* @param int $pid
*
* @return bool
*/
public function isRunning($pid)
{
$output = $exitCode = null;
exec(sprintf("ps %d", $pid), $output, $exitCode);
return $exitCode === 0;
}
/**
* {@inheritdoc}
*/
public function kill($pid, $forcefully = false)
{
$output = [];
$result = 1;
exec(sprintf("kill -%d %d", $forcefully ? 9 : 15, $pid), $output, $result);
return !$result;
}
/**
* Check whether the commands "ps" and "kill" are available.
*
* @return bool
*
* @internal
*/
public static function isAvailable()
{
return DIRECTORY_SEPARATOR === '/' && exec("which ps") && exec("which kill");
}
}