K 10 svn:author V 7 davidxu K 8 svn:date V 27 2006-07-25T12:50:05.000000Z K 7 svn:log V 455 1. Don't override underscore version of aio_suspend(), system(), wait(), waitpid() and usleep(), they are internal versions and should not be cancellation points. 2. Make wait3() as a cancellation point. 3. Move raise() and pause() into file thr_sig.c. 4. Add functions _sigsuspend, _sigwait, _sigtimedwait and _sigwaitinfo, remove SIGCANCEL bit in wait-set for those functions, the signal is used internally to implement thread cancellation. END