जब यह एक PHP स्क्रिप्ट से कहा जाता है timeout {$time} command समाधान ठीक से काम नहीं करता है। मेरे मामले में, एक गलत सर्वर पर एक ssh कमांड के साथ (आरएसए कुंजी नहीं मिली, और सर्वर पासवर्ड मांगता है), परिभाषित टाइमआउट के बाद प्रक्रिया अभी भी जिंदा है।
हालांकि मैं एक समारोह है कि यहाँ ठीक काम करता है पाया है:
http://blog.dubbelboer.com/2012/08/24/execute-with-timeout.html
सी & पी:
/**
* Execute a command and return it's output. Either wait until the command exits or the timeout has expired.
*
* @param string $cmd Command to execute.
* @param number $timeout Timeout in seconds.
* @return string Output of the command.
* @throws \Exception
*/
function exec_timeout($cmd, $timeout) {
// File descriptors passed to the process.
$descriptors = array(
0 => array('pipe', 'r'), // stdin
1 => array('pipe', 'w'), // stdout
2 => array('pipe', 'w') // stderr
);
// Start the process.
$process = proc_open('exec ' . $cmd, $descriptors, $pipes);
if (!is_resource($process)) {
throw new \Exception('Could not execute process');
}
// Set the stdout stream to none-blocking.
stream_set_blocking($pipes[1], 0);
// Turn the timeout into microseconds.
$timeout = $timeout * 1000000;
// Output buffer.
$buffer = '';
// While we have time to wait.
while ($timeout > 0) {
$start = microtime(true);
// Wait until we have output or the timer expired.
$read = array($pipes[1]);
$other = array();
stream_select($read, $other, $other, 0, $timeout);
// Get the status of the process.
// Do this before we read from the stream,
// this way we can't lose the last bit of output if the process dies between these functions.
$status = proc_get_status($process);
// Read the contents from the buffer.
// This function will always return immediately as the stream is none-blocking.
$buffer .= stream_get_contents($pipes[1]);
if (!$status['running']) {
// Break from this loop if the process exited before the timeout.
break;
}
// Subtract the number of microseconds that we waited.
$timeout -= (microtime(true) - $start) * 1000000;
}
// Check if there were any errors.
$errors = stream_get_contents($pipes[2]);
if (!empty($errors)) {
throw new \Exception($errors);
}
// Kill the process in case the timeout expired and it's still running.
// If the process already exited this won't do anything.
proc_terminate($process, 9);
// Close all streams.
fclose($pipes[0]);
fclose($pipes[1]);
fclose($pipes[2]);
proc_close($process);
return $buffer;
}
शुरू टाइमर। असीमित पाश में प्रक्रिया डालें, टाइमर की जांच करें, आवश्यक होने पर टाइम-आउट करें। –