ossia::qt::qml_websocket_outbound_socket::state Struct Reference

Inherits Nano::Observer.

Detailed Description

Owns the transport and every websocketpp-side callback.

The Nano::Observer lives here and not on the QObject on purpose: the signals it listens to belong to client, a member of this very object, so the unsynchronized slot lists can only be mutated while the whole state is being destroyed, at which point no handler can still be running. The QObject, destroyed on the Qt thread while the websocketpp thread may be firing, is only ever reached under qt_mutex.

Public Member Functions
void	detach ()
void	fire_open ()
	Nano slots, always on the websocketpp thread.
void	fire_fail ()
void	fire_close ()
void	fire_message (websocketpp::frame::opcode::value opcode, std::string msg)
	Message delivery, always on the websocketpp thread.

Public Attributes
std::string	url
std::unique_ptr< ossia::net::websocket_client >	client
std::atomic_bool	alive {true}
std::atomic_bool	closed {false}
std::mutex	qt_mutex
qml_websocket_outbound_socket *	self {}

Member Data Documentation

closed

std::atomic_bool ossia::qt::qml_websocket_outbound_socket::state::closed {false}

The script's onClose is reported at most once, be it a peer-initiated close or an explicit one.

qt_mutex

std::mutex ossia::qt::qml_websocket_outbound_socket::state::qt_mutex

Guards self, which is cleared before the QObject starts dying. Held for the whole asio -> Qt handover.