Blocks all signal handlers managed by @self so they will not
be called during any signal emissions. Must be unblocked exactly
the same number of times it has been blocked to become active again.
This blocked state will be kept across changes of the target instance.
Blocks all signal handlers managed by @self so they will not be called during any signal emissions. Must be unblocked exactly the same number of times it has been blocked to become active again.
This blocked state will be kept across changes of the target instance.
See: g_signal_handler_block().