Daniel Eischen b5a8a15c2f Don't needlessly poll file descriptors when there are no ... file descriptors needing to be polled (Doh!). Reported by Dan Nelson <dnelson@emsphone.com>. Don't install and start the scheduling timer until the first thread is created. This prevents the overhead of having a periodic scheduling signal in a single threaded program. Reported by Dan Nelson <dnelson@emsphone.com>. Allow builtin longjmps out of application installed signal handlers without the need perform any post-handler cleanup: o Change signal handling to save the threads interrupted context on the stack. The threads current context is now always stored in the same place (in the pthread). If and when a signal handler returns, the interrupted context is copied back to the storage area in the pthread. o Before calling invoking a signal handler for a thread, back the thread out of any internal waiting queues (mutex, CV, join, etc) to which it belongs. Rework uthread_info.c a bit to make it easier to change the format of a thread dump. Use an alternal signal stack for the thread library's signal handler. This allows us to fiddle with the main threads stack without fear of it being in use. Reviewed by: jasone		2000-11-09 05:08:26 +00:00
..
arch	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
man	Make sem_post() safe to call from within a signal handler, as required by	2000-08-01 21:19:09 +00:00
sys	$Id$ -> $FreeBSD$	1999-08-28 00:22:10 +00:00
test	Add test to detect propagation of cancellation points within libc_r.	2000-04-26 23:25:58 +00:00
uthread	Don't needlessly poll file descriptors when there are no	2000-11-09 05:08:26 +00:00
Makefile	Enable _PTHREADS_INVARIANTS until the recent libc_r changes are	2000-10-13 22:19:50 +00:00