1999-08-12 Ross Johnson <rpj@ixobrychus.canberra.edu.au>snap-1999-05-30-patches

	* exit.c (pthread_exit): Check for implicitly created threads
	to avoid raising an unhandled exception.

1999-07-12  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

	* condvar.c (pthread_cond_destroy): Add critical section.
	(cond_timedwait): Add critical section; check for timeout
	waiting on semaphore.
	(pthread_cond_broadcast): Add critical section.
	- Peter Slacik <Peter.Slacik@tatramed.sk>

1999-07-09  Ross Johnson  <rpj@ixobrychus.canberra.edu.au>

	The following changes fix a bug identified by
	Lorin Hochstein <lmh@xiphos.ca> and solved by
	John Bossom <John.Bossom@Cognos.COM>.

	The problem was that cleanup handlers were not executed when
	pthread_exit() was called.

	* implement.h (pthread_t_): Add exceptionInformation element for
	C++ per-thread exception information.
	(general): Define and rename exceptions.


	* misc.c (CancelableWait):  _PTHREAD_EPS_CANCEL (SEH) and
	Pthread_exception_cancel (C++) used to identify the exception.

	* cancel.c (pthread_testcancel): _PTHREAD_EPS_CANCEL (SEH) and
	Pthread_exception_cancel (C++) used to identify the exception.

	* exit.c (pthread_exit): throw/raise an exception to return to
	_pthread_threadStart() to exit the thread. _PTHREAD_EPS_EXIT (SEH)
	and Pthread_exception_exit (C++) used to identify the exception.

	* private.c (_pthread_threadStart): Add pthread_exit exception trap;
	clean up and exit the thread directly rather than via pthread_exit().

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