c54913c02b
Remove scheduler activations references. Bump date.
2007-05-19 14:24:42 +00:00
e7c35aabc9
Remove obsolete comment.
2007-05-02 21:54:16 +00:00
9e9284adba
Fixed spelling error.
2007-04-17 21:11:47 +00:00
b5a5e72af1
Mirror a fix made to the kernel's condvars:
...
After resuming execution, the thread must check to see if it
has been restarted as a result of pthread_cond_signal(). If it
has, but cannot take the wakeup (because of eg a pending Unix
signal or timeout) then try to ensure that another thread sees
it. This is necessary because there may be multiple waiters,
and at least one should take the wakeup if possible.
2007-04-12 21:36:06 +00:00
5764a76889
Remove support for NetBSD/{,evb}sh5.
2007-04-08 09:35:21 +00:00
a5070151ae
- Test+branch is usually cheaper than making an indirect function call,
...
so avoid making them.
- When parking an LWP on a condition variable, point the hint argument at
the mutex's waiters queue. Chances are we will be awoken from that later.
2007-03-24 18:51:59 +00:00
1dd83d7758
Move PTHREADD_ADD(PTHREADD_COND_WOKEUP) back to the correct spot.
2007-03-21 19:08:18 +00:00
a63c21f286
PR lib/34931: PTHREAD_ATTR(3) doesn't document PTHREAD_CREATE_JOINABLE and
...
PTHREAD_CREATE_DETACHED macros. From Matthew Mondor.
2007-03-21 18:53:32 +00:00
d68cf1be1a
- When signalling waiters, try not to awaken them immediatley. If we hold
...
the mutex that the waiters are using to synchronise, then transfer them
to the mutex's waiters list so that the wakeup is deferred until release
of the mutex. Improves the timings for CV sleep/wakeup by between 30-100%
in tests conducted locally on a UP system. There can be a penalty for MP
systems when only one thread is being awoken, but in practice I think it
won't be be an issue.
- pthread_signal: search for a thread that does not have a pending wakeup.
Threads can have a pending wakeup and still be on the waiters list if we
clash with an earlier pthread_cond_broadcast().
2007-03-20 23:49:58 +00:00
b0427b61fb
- Maintain a per-thread pointer to the last mutex acquired by the app, to
...
be used only as as a hint. Clear the pointer when releasing the mutex.
- When releasing a mutex, wake all waiters. Makes it possible to tranfer
waiters from another object to a mutex.
2007-03-20 23:33:10 +00:00
bfa3094e84
Cosmetic changes.
2007-03-14 23:34:48 +00:00
0c61b6a65c
- pthread__park: always check for cancellation.
...
- pthread__unpark: cosmetic changes.
2007-03-14 23:33:42 +00:00
3cf001f506
- Update to match changed pthread__park() interface.
...
- Simplify the locking in sem_wait().
2007-03-05 23:56:44 +00:00
c79299e2ec
Update to match changed pthread__park() interface.
2007-03-05 23:56:17 +00:00
fe47a5c777
- Update to match changed pthread__park() interface.
...
- Fix a bug where a thread could be "reentered" onto the waiters queue.
2007-03-05 23:55:54 +00:00
792cc0e17d
- Simplify the interface to pthread__park() and friends slightly.
...
- If sysctl() fails, complain.
2007-03-05 23:55:40 +00:00
8c1c910253
- Sync with reality.
...
- Minor cosmetic changes.
2007-03-05 23:53:53 +00:00
da3cc0ffcf
Cosmetic and minor debugging changes.
2007-03-05 23:30:17 +00:00
f1c2a5c056
Undo previous, it matches IEEE 1003.1.
2007-03-05 22:25:27 +00:00
d6d036f667
Drop the interlock if cancelled.
2007-03-05 22:11:40 +00:00
1f1ddafc0c
Add __sigsuspend14, sigtimedwait as cancellation points.
2007-03-04 20:07:13 +00:00
44e5b56619
Fix a sleep/wakeup race with condvars.
2007-03-02 19:56:47 +00:00
67513ce0a2
Silence a gcc/lint warning.
2007-03-02 18:58:45 +00:00
de2138164c
Remove the PTHREAD_SA option. If M:N threads is reimplemented it's
...
better off done with a seperate library.
2007-03-02 18:53:51 +00:00
dba14ef0a0
Don't grab the state lock to check for cancellation around condition
...
variables, as _lwp_wakeup/lwp_park provide the necessary barrier.
2007-03-02 17:47:40 +00:00
dc39f9ec83
pthread_detach: acquire the join lock before changing pt_flags.
2007-03-02 17:40:55 +00:00
1bcb6087a6
On x86, issue the pause instruction while spinning.
2007-03-02 17:34:21 +00:00
1296e8508f
- Put detached & exiting threads on the tail of the deadqueue, not head.
...
- Don't forget to set PT_FLAG_DETACHED.
2007-02-21 22:31:38 +00:00
dacd4bd9ca
Minor optimisation to previous: only check for continued existence of
...
the thread if it was detached.
2007-02-21 22:25:57 +00:00
4cdc2ed889
fix a race between pthread_exit and pthread_create.
...
inefficient, but better than crashing.
2007-02-15 15:39:33 +00:00
3247035dcc
Cast the return value of _lwp_unpark_all(), just in case.
2007-02-09 23:53:24 +00:00
a21c37097e
Bump libpthread & libpthread_dbg minor versions so that an old SA copy
...
gets kept in the file system. Requested by pavel.
2007-02-09 23:00:16 +00:00
401499f30e
Sync with kernel changes introduced by merging the newlock2 branch.
2007-02-09 22:08:48 +00:00
d333bb5f2f
Build without sys/sa.h present.
2007-02-06 15:24:37 +00:00
858097f9a1
use __func__ instead of __FUNCTION__ which is a gcc extension.
2007-01-31 23:55:20 +00:00
bbc680871a
Add another volatile, mentioned in current-users from a cross-build on amd64.
2007-01-22 15:06:31 +00:00
7630e3876c
pthread_create(): clear newthread->pt_sleeponq before calling _lwp_create().
2007-01-20 20:02:36 +00:00
1eb6e5fbb2
add casts to pacify lint.
2007-01-20 18:58:11 +00:00
25a0745d2e
remove unused variable/code.
2007-01-20 18:57:41 +00:00
d1ddfe10b1
fix warning about indirect call without *
2007-01-20 18:56:30 +00:00
b4634d8561
sprinkle volatile.
2007-01-20 18:00:15 +00:00
1636e22df7
set warns to 4
2007-01-20 04:56:25 +00:00
3ca3d0b1e7
add a missing volatile.
2007-01-20 04:56:07 +00:00
55ac93d329
Remove more duplicate #includes, and a few spurious whitespaces at EOL
...
From Slava Semushin <slava.semushin@gmail.com>
2007-01-17 23:24:22 +00:00
8e51dbdc7e
For 1:1 threads: __strong_alias(__libc_thr_yield,_sys_sched_yield)
2007-01-16 07:09:17 +00:00
b8daad9836
Fix a race between pthread_exit() and pthread_join().
2007-01-16 05:22:55 +00:00
efb1fc06e2
Fix a race between pthread_create() and pthread_exit() in the 1:1 case.
2007-01-16 04:19:02 +00:00
39aa27f5ce
Pass in the 'hint' argument when parking/unparking LWPs.
2007-01-16 01:35:16 +00:00
9c848e15d6
bring sched_yield() back which got lost recently
2007-01-08 20:54:42 +00:00
ae979b2162
Add some items for 1:1 threads.
2006-12-25 11:36:36 +00:00
wiz