Lockable.unlock
void unlock()Unlocks lockable. This method should not be called if the current does not already holds a lock on lockable (having used [gda.lockable.Lockable.lock] or [gda.lockable.Lockable.trylock]).
This function can be used even if [glib.thread.Thread.init_] has not yet been called, and, in that case, will do nothing.