// Blocks on callbacks from the core.
// TODO: trigger a close meta callback when connection is lost
func (a *App) Receive() {
Debug("Starting receive")
for {
cb := a.conn.app.CallbackListen()
core.Debug("Have callback: %v", cb)
if cb.Id == 0 {
// Trigger onLeave for all domains
core.Info("Terminating receive loop")
return
}
if fn, ok := a.subscriptions[cb.Id]; ok {
fn.Invoke(cb.Args)
}
if fn, ok := a.registrations[cb.Id]; ok {
core.Debug("Invocation: %v", cb.Args)
ret := fn.Invoke(cb.Args[1:]...)
a.conn.app.Yield(cb.Args[0].(uint64), []interface{}{ret.Interface()})
}
}
}
func (c Conn) Close(reason string) error {
core.Debug("Asked to close: ", reason)
//TODO: Use appropriate error codes
c.wrapper.Get("conn").Call("close", 1000, reason)
return nil
}
func Open(url string) (*WebsocketConnection, error) {
core.Debug("Opening ws connection to %s", url)
dialer := websocket.Dialer{Subprotocols: []string{"wamp.2.json"}}
if conn, _, err := dialer.Dial(url, nil); err != nil {
core.Debug("Cant dial connection: %e", err)
return nil, err
} else {
connection := &WebsocketConnection{
conn: conn,
lock: &sync.Mutex{},
payloadType: websocket.TextMessage,
}
go connection.run()
return connection, nil
}
}
func Debug(s string) { core.Debug("%s", s) }
//export Debug
func Debug(s *C.char) { core.Debug("%s", C.GoString(s)) }