[PATCH] pthread cancel patch

[Thomas Pfaff]

While Rob is reviewing my patches i got a bugfix for the pthread
cancellation code.

2002-05-27  Thomas Pfaff  <tpfaff@gmx.net>

	* thread.h (pthread::cleanup_stack): Renamed from
	cleanup_handlers to cleanup_stack.
	* thread.cc (pthread::pthread): Ditto.
	(__pthread_cleanup_push): Ditto.
	(__pthread_cleanup_pop): Ditto.
	(__pthread_cleanup_pop_all): Ditto.
	(__pthread_cancel): Check the cancelstate and type before
	pthread_equal to make sure that the thread is cancelled the
	right way.
	Unlock the mutex before the cancellation.









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