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278 Commits

Author SHA1 Message Date
David Xu
f08e1bf682 Eliminate atomic operations in thread cancellation functions, it should 
reduce overheads of cancellation points.
 2006-11-24 09:57:38 +00:00
David Xu
58c7bab332 Move code calculating new inherited priority into single function. 2006-11-11 13:33:47 +00:00
David Xu
5656b5fafa Don't inherit THR_FLAGS_NEED_SUSPEND for child process, child process 
only has one thread, setting the flag can cause the thread to be
suspended and no another thread will resume it.
 2006-10-14 13:40:08 +00:00
David Xu
8042f26d52 o Make _thr_umutex_init a function. 
o Eliminate unused parameter for some functions.
o Convert type of first parameter to void * for _thr_umtx_wait
  and _thr_umtx_wake.
 2006-10-13 22:31:00 +00:00
David Xu
0b90fa4ad0 Use type pthread_state for thread state. 2006-10-13 12:45:21 +00:00
David Xu
e6747c7ce1 use rtprio_thread system call to get or set thread priority. 2006-09-21 04:21:30 +00:00
David Xu
ddaf6689e3 Use return value of _thr_umutex_lock instead of using zero. 2006-09-08 09:29:14 +00:00
David Xu
bddd24cd9c Replace internal usage of struct umtx with umutex which can supports 
real-time if we want, no functionality is changed.
 2006-09-06 04:04:10 +00:00
David Xu
8549079365 Same as pthread_setschedparam, use sizeof(struct sched_param) instead. 2006-09-05 14:39:06 +00:00
David Xu
be0bfdd207 Pass correct parameter size. 2006-09-05 14:37:22 +00:00
Marcel Moolenaar
be2f4bda88 Stylize: avoid using a global register variable. 2006-09-01 21:01:11 +00:00
Marcel Moolenaar
cc79b334de Rename TLS_TP_OFFSET back to TP_OFFSET. The former clashes with rtld. 2006-09-01 06:36:00 +00:00
Marcel Moolenaar
8e61dbecfc Stylize. 2006-09-01 06:15:00 +00:00
Marcel Moolenaar
35ca217bf0 Stylize. 2006-08-31 23:31:18 +00:00
Marcel Moolenaar
9f7b8b0d3c TLS fixes: 
o  The TLS pointer (r2) points 0x7000 after the *end* of the TCB.
o  _rtld_allocate_tls() gets a pointer to the current TCB, not the
   current TLS pointer.
o  _rtld_free_tls() gets the size of the TCB structure.
 2006-08-31 19:16:47 +00:00
Marcel Moolenaar
91705de0c2 Fix harmless bug: sizeof(tcb) equals sizeof(void*) not sizeof(struct tcb). 
The argument is (currently) not used by _rtld_free_tls().
 2006-08-31 19:06:30 +00:00
Marcel Moolenaar
57c2251d5c o Set TP using inline assembly to avoid dead code elimination. 
o  Eliminate _tcb.
 2006-08-30 03:31:32 +00:00
David Xu
fd2b89c48c Remove unused file. 2006-08-29 13:01:23 +00:00
David Xu
215318a7a3 pthread_sigmask is in thr_sig.c, remove this file. 2006-08-28 12:29:54 +00:00
David Xu
6361212beb Kill unused files. 2006-08-28 05:01:31 +00:00
David Xu
8ab9d78b9d Use umutex APIs to implement pthread_mutex, member pp_mutexq is added 
into pthread structure to keep track of locked PTHREAD_PRIO_PROTECT mutex,
no real mutex code is changed, the mutex locking and unlocking code should
has same performance as before.
 2006-08-28 04:52:50 +00:00
David Xu
cf13ecda6a Add umutex APIs. 2006-08-28 04:47:27 +00:00
Ruslan Ermilov
2b46c64c9c Remove alpha left-overs. 2006-08-22 08:03:01 +00:00
David Xu
065dbdc130 Axe unused member field. 2006-08-08 05:04:43 +00:00
David Xu
6b73f08519 Get number of CPUs and ignore spin count on single processor machine. 2006-08-08 04:42:41 +00:00
David Xu
05c3a5eab4 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.
 2006-07-25 12:50:05 +00:00
Xin LI
da84584390 Unexpand two TAILQ_FOREACH_SAFE cases. 
Ok'ed by:	davidxu
 2006-07-17 09:23:44 +00:00
David Xu
e2dc286c1c Caching scheduling policy and priority in userland, a critical but baddly 
written application is frequently changing thread priority for SCHED_OTHER
policy.
 2006-07-13 22:45:19 +00:00
David Xu
561a89f945 Use thr_setscheduler, thr_getscheduler and thr_setschedparam to implement 
pthread functions.
 2006-07-13 06:35:43 +00:00
David Xu
7b4f8f037f Use kernel facilities to support real-time scheduling. 2006-07-12 06:13:18 +00:00
David Xu
9bbc6c7f54 __error could be called too early before libthr is initialized, test 
this case and return global varible errno instead.
 2006-07-12 03:44:05 +00:00
David Xu
7fabe0b5cc Remove unused member. 2006-06-03 00:19:40 +00:00
David Xu
b971a73040 Remove unused member field m_queue. 2006-06-02 08:37:01 +00:00
Xin LI
631574e7dc Explicitly request pre-zeroed memory instead of memset'ing our 
own.

Ok'ed by:	davidxu
 2006-05-31 00:31:38 +00:00
David Xu
e92b415c5a Add symbol versions: FBSD_1.0 and FBSDprivate. 2006-05-11 07:02:52 +00:00
David Xu
0a5fa45560 s/long/int. 2006-04-27 08:25:13 +00:00
David Xu
245116cafc - Use same priority range returned by kernel's sched_get_priority_min() 
and sched_get_priority_max() syscalls.
- Remove unused fields from structure pthread_attr.
 2006-04-27 08:18:23 +00:00
David Xu
d96413eaa4 Remove multiple _get_curthread() calls. 2006-04-23 11:23:37 +00:00
Ruslan Ermilov
84e709f1f1 Install shared libpthread library into /lib; needed by some 
/sbin programs.
 2006-04-12 19:42:20 +00:00
David Xu
a97944597b Do not check validity of timeout if a mutex can be acquired immediately. 
Completly drop recursive mutex in pthread_cond_wait and restore recursive
after resumption. Reorganize code to make gcc to generate better code.
 2006-04-08 13:24:44 +00:00
David Xu
b7e118b1e0 Remove declaration of _thr_initial from MD header file, it is no longer 
needed.
 2006-04-04 03:35:26 +00:00
David Xu
7bd761788d Simplify _get_curthread() and _tcb_ctor because libc and rtld now 
already allocate thread pointer space in tls block for initial thread.
Only i386 and amd64 have been done, others still have to be tested.
 2006-04-04 03:26:06 +00:00
David Xu
37a6356bbe WARNS level 4 cleanup. 2006-04-04 02:57:49 +00:00
Dag-Erling Smørgrav
552585665b Fix prototype mismatch. 2006-03-28 21:46:55 +00:00
David Xu
9ad4b64459 Remove priority mutex code because it does not work correctly, 
to make it work, turnstile like mechanism to support priority
propagating and other realtime scheduling options in kernel
should be available to userland mutex, for the moment, I just
want to make libthr be simple and efficient thread library.

Discussed with: deischen, julian
 2006-03-27 23:50:21 +00:00
David Xu
649814dd6c Comment out -g compiler option, found by 'FreeBSD Build Options Survey'. 2006-03-27 05:58:58 +00:00
David Xu
d448272d3c Check cancellation state carefully to see we really need to call 
_pthread_testcancel(). Preserve errno in _thr_suspend_check().
 2006-03-26 01:57:03 +00:00
David Xu
efe33769b9 Don't cancel thread if it is in critical region. 2006-03-25 07:03:13 +00:00
David Xu
f656ae703e Only wake up writer if the lock is free. 2006-03-25 05:14:21 +00:00
David Xu
07c7c80074 Compile thr_rtld.c 2006-03-25 05:00:54 +00:00