/**
* Reads pipes, executes callback.
*
* @param Boolean $blocking Whether to use blocking calls or not.
*/
private function readPipes($blocking, $close)
{
if ($close) {
$result = $this->processPipes->readAndCloseHandles($blocking);
} else {
$result = $this->processPipes->read($blocking);
}
foreach ($result as $type => $data) {
if (3 == $type) {
$this->fallbackExitcode = (int) $data;
} else {
call_user_func($this->callback, $type === self::STDOUT ? self::OUT : self::ERR, $data);
}
}
}
/**
* Closes process resource, closes file handles, sets the exitcode.
*
* @return Integer The exitcode
*/
private function close()
{
$exitcode = -1;
$this->processPipes->close();
if (is_resource($this->process)) {
$exitcode = proc_close($this->process);
}
$this->exitcode = $this->exitcode !== null ? $this->exitcode : -1;
$this->exitcode = -1 != $exitcode ? $exitcode : $this->exitcode;
if (-1 == $this->exitcode && null !== $this->fallbackExitcode) {
$this->exitcode = $this->fallbackExitcode;
} elseif (-1 === $this->exitcode && $this->processInformation['signaled'] && 0 < $this->processInformation['termsig']) {
// if process has been signaled, no exitcode but a valid termsig, apply unix convention
$this->exitcode = 128 + $this->processInformation['termsig'];
}
return $this->exitcode;
}
/**
* Closes process resource, closes file handles, sets the exitcode.
*
* @return int The exitcode
*/
private function close()
{
$this->processPipes->close();
if (is_resource($this->process)) {
proc_close($this->process);
}
$this->exitcode = $this->processInformation['exitcode'];
$this->status = self::STATUS_TERMINATED;
if (-1 === $this->exitcode) {
if ($this->processInformation['signaled'] && 0 < $this->processInformation['termsig']) {
// if process has been signaled, no exitcode but a valid termsig, apply Unix convention
$this->exitcode = 128 + $this->processInformation['termsig'];
} elseif ($this->enhanceSigchildCompatibility && $this->isSigchildEnabled()) {
$this->processInformation['signaled'] = true;
$this->processInformation['termsig'] = -1;
}
}
// Free memory from self-reference callback created by buildCallback
// Doing so in other contexts like __destruct or by garbage collector is ineffective
// Now pipes are closed, so the callback is no longer necessary
$this->callback = null;
return $this->exitcode;
}
