Disconnects a handler from a cancellable instance similar to
g_signal_handler_disconnect(). Additionally, in the event that a
signal handler is currently running, this call will block until the
handler has finished. Calling this function from a
"cancelled" signal handler will therefore result in a
deadlock.
This avoids a race condition where a thread cancels at the
same time as the cancellable operation is finished and the
signal handler is removed. See "cancelled" for
details on how to use this.
If cancellable is NULL or handler_id is 0 this function does
nothing.
Since 2.22
Disconnects a handler from a cancellable instance similar to g_signal_handler_disconnect(). Additionally, in the event that a signal handler is currently running, this call will block until the handler has finished. Calling this function from a "cancelled" signal handler will therefore result in a deadlock. This avoids a race condition where a thread cancels at the same time as the cancellable operation is finished and the signal handler is removed. See "cancelled" for details on how to use this. If cancellable is NULL or handler_id is 0 this function does nothing. Since 2.22