void g_unix_connection_receive_credentials_async ( GUnixConnection* connection, GCancellable* cancellable, GAsyncReadyCallback callback, gpointer user_data )
Asynchronously receive credentials.
For more details, see
g_unix_connection_receive_credentials() which is
the synchronous version of this call.
When the operation is finished,
callback will be called. You can then call
g_unix_connection_receive_credentials_finish() to get the result of the operation.