/**
* Starts the context execution.
*
* @throws \Icicle\Concurrent\Exception\ForkException If forking fails.
* @throws \Icicle\Stream\Exception\FailureException If creating a socket pair fails.
*/
public function start()
{
if (0 !== $this->oid) {
throw new StatusError('The context has already been started.');
}
list($parent, $child) = Stream\pair();
switch ($pid = pcntl_fork()) {
case -1:
// Failure
throw new ForkException('Could not fork process!');
case 0:
// Child
// @codeCoverageIgnoreStart
// Create a new event loop in the fork.
Loop\loop($loop = Loop\create(false));
$channel = new ChannelledStream($pipe = new DuplexPipe($parent));
fclose($child);
$coroutine = new Coroutine($this->execute($channel));
$coroutine->done();
try {
$loop->run();
$code = 0;
} catch (\Throwable $exception) {
$code = 1;
}
$pipe->close();
exit($code);
// @codeCoverageIgnoreEnd
// @codeCoverageIgnoreEnd
default:
// Parent
$this->pid = $pid;
$this->oid = posix_getpid();
$this->channel = new ChannelledStream($this->pipe = new DuplexPipe($child));
fclose($parent);
}
}
/**
* Spawns the thread and begins the thread's execution.
*
* @throws \Icicle\Concurrent\Exception\StatusError If the thread has already been started.
* @throws \Icicle\Concurrent\Exception\ThreadException If starting the thread was unsuccessful.
* @throws \Icicle\Stream\Exception\FailureException If creating a socket pair fails.
*/
public function start()
{
if (0 !== $this->oid) {
throw new StatusError('The thread has already been started.');
}
$this->oid = getmypid();
list($channel, $this->socket) = Stream\pair();
$this->thread = new Internal\Thread($this->socket, $this->function, $this->args);
if (!$this->thread->start(PTHREADS_INHERIT_INI | PTHREADS_INHERIT_FUNCTIONS | PTHREADS_INHERIT_CLASSES)) {
throw new ThreadException('Failed to start the thread.');
}
$this->channel = new ChannelledStream($this->pipe = new DuplexPipe($channel));
}
