/**
* @param int $phpPid
* @param bool testing
* @return bool isChild
*/
public function watch($phpPid, $testing = false)
{
$pid = null;
if ($testing == false) {
$pid = pcntl_fork();
}
if ($pid === -1) {
throw new Exception('could not create fork for pid ' . $pid);
}
if ($pid && $testing == false) {
pcntl_waitpid($pid, $status, WNOHANG);
return $pid;
} else {
// child process runs what is here
$this->commandLine->stdout('starting strace on pid ' . $phpPid . '.');
$result = $this->commandLine->execute($this->cmd . ' -q -s ' . $this->getLineLength() . ' -p ' . escapeshellarg($phpPid) . ' 2>&1 | tail -' . $this->getLines());
$this->commandLine->stdout('pid ' . $phpPid . ' finished running with exit code ' . $result->getReturnVar() . '.');
if ($result->getReturnVar() != 0 || substr_count(implode(' ', $result->getOutput()), self::SIGSEGV)) {
foreach ($result->getOutput() as $line) {
$this->commandLine->stdout($line);
}
}
return false;
}
}
/**
* @param $name
* @return bool
*/
public function isProcessRunning($name)
{
$result = $this->commandLine->execute($this->cmd . ' xa');
foreach ($result->getOutput() as $line) {
if (mb_substr_count($line, $name)) {
return true;
}
}
return false;
}