public function checkConnection($socket)
{
// Check socket state.
if ($address = stream_socket_get_name($socket, true)) {
// Remove write listener.
Worker::$globalEvent->del($socket, EventInterface::EV_WRITE);
// Nonblocking.
stream_set_blocking($socket, 0);
// Compatible with hhvm
if (function_exists('stream_set_read_buffer')) {
stream_set_read_buffer($socket, 0);
}
// Try to open keepalive for tcp and disable Nagle algorithm.
if (function_exists('socket_import_stream') && $this->transport === 'tcp') {
$raw_socket = socket_import_stream($socket);
socket_set_option($raw_socket, SOL_SOCKET, SO_KEEPALIVE, 1);
socket_set_option($raw_socket, SOL_TCP, TCP_NODELAY, 1);
}
// Register a listener waiting read event.
Worker::$globalEvent->add($socket, EventInterface::EV_READ, array($this, 'baseRead'));
// There are some data waiting to send.
if ($this->_sendBuffer) {
Worker::$globalEvent->add($socket, EventInterface::EV_WRITE, array($this, 'baseWrite'));
}
$this->_status = self::STATUS_ESTABLISH;
$this->_remoteAddress = $address;
// Try to emit onConnect callback.
if ($this->onConnect) {
try {
call_user_func($this->onConnect, $this);
} catch (\Exception $e) {
Worker::log($e);
exit(250);
} catch (\Error $e) {
Worker::log($e);
exit(250);
}
}
// Try to emit protocol::onConnect
if (method_exists($this->protocol, 'onConnect')) {
try {
call_user_func(array($this->protocol, 'onConnect'), $this);
} catch (\Exception $e) {
Worker::log($e);
exit(250);
} catch (\Error $e) {
Worker::log($e);
exit(250);
}
}
} else {
// Connection failed.
$this->emitError(WORKERMAN_CONNECT_FAIL, 'connect ' . $this->_remoteAddress . ' fail after ' . round(microtime(true) - $this->_connectStartTime, 4) . ' seconds');
if ($this->_status === self::STATUS_CLOSING) {
$this->destroy();
}
if ($this->_status === self::STATUS_CLOSED) {
$this->onConnect = null;
}
}
}