6 commits

Author	SHA1	Message	Date
Justine Tunney	60cb435cb4	Implement pthread_atfork() ... If threads are being used, then fork() will now acquire and release and runtime locks so that fork() may be safely used from threads. This also makes vfork() thread safe, because pthread mutexes will do nothing when the process is a child of vfork(). More torture tests have been written to confirm this all works like a charm. Additionally: - Invent hexpcpy() api - Rename nsync_malloc_() to kmalloc() - Complete posix named semaphore implementation - Make pthread_create() asynchronous signal safe - Add rm, rmdir, and touch to command interpreter builtins - Invent sigisprecious() and modify sigset functions to use it - Add unit tests for posix_spawn() attributes and fix its bugs One unresolved problem is the reclaiming of *NSYNC waiter memory in the forked child processes, within apps which have threads waiting on locks	2022-10-16 12:25:13 -07:00
Justine Tunney	0f89140882	Further improve cocmd interpreter	2022-10-12 10:44:54 -07:00
Justine Tunney	672ccda37c	Clean up some sleep code	2022-10-08 03:00:48 -07:00
Justine Tunney	9849b4c7ba	Add *NSYNC unit test suite ... This change also fixes the clock_nanosleep() api and polyfills futexes on Windows, Mac, and NetBSD using exponential backoff.	2022-10-07 21:34:15 -07:00
Justine Tunney	81ee11a16e	Fix futimes() regression ... Fixes #647	2022-10-05 19:25:07 -07:00
Justine Tunney	b75a4654cf	Introduce clock_nanosleep()	2022-10-05 06:37:15 -07:00