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<?php |
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namespace PjbServer\Tools\System\Linux; |
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use PjbServer\Tools\Exception; |
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use PjbServer\Tools\System\ProcessInterface; |
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use Psr\Log\LoggerInterface; |
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use Psr\Log\NullLogger; |
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class LinuxProcess implements ProcessInterface |
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{ |
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/** |
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* @var LoggerInterface |
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*/ |
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protected $logger; |
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/** |
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* LinuxProcess constructor. |
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* |
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* @param LoggerInterface $logger |
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*/ |
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public function __construct($logger = null) |
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{ |
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if ($logger === null) { |
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$logger = new NullLogger(); |
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} |
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$this->logger = $logger; |
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} |
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/** |
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* Check whether a pid is running. |
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* |
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* @throws Exception\InvalidArgumentException |
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* |
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* @param int $pid |
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* |
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* @return bool |
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*/ |
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public function isRunning($pid) |
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{ |
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$cmd = sprintf('kill -0 %d 2>&1', $pid); |
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$this->logger->debug(__METHOD__ . ": Exec command: $cmd"); |
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exec($cmd, $output, $return_var); |
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$running = ($return_var === 0); |
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return $running; |
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} |
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/** |
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* Kill a process. |
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* |
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* @throws Exception\InvalidArgumentException |
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* |
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* @param int $pid |
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* @param bool $wait wait for the process to be killed |
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* |
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* @return bool |
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*/ |
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public function kill($pid, $wait = false) |
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{ |
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$killed = false; |
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if ($this->isRunning($pid)) { |
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if ($wait) { |
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$sleep_time = '0.2'; |
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$cmd = sprintf('kill %d; while ps -p %d; do sleep %s;done;', $pid, $pid, $sleep_time); |
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$this->logger->debug(__METHOD__ . " Exec command: $cmd"); |
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exec($cmd, $output, $return_var); |
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$killed = ($return_var === 0); |
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if ($killed) { |
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$this->logger->debug(__METHOD__ . " Successfully killed process {$pid}"); |
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} else { |
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$this->logger->notice(__METHOD__ . " Cannot kill process {$pid}, $output"); |
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} |
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} else { |
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//@todo |
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throw new \Exception('@todo Only wait=true is supported for now'); |
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} |
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} |
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return $killed; |
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} |
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} |
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belgattitude /
pjbserver-tools
