src/lib/libpthread/thread/thr_priority_queue.c, branch release/6.0.0_cvs

This commit was manufactured by cvs2svn to create tag

2005-11-03T00:35:26Z

'RELENG_6_0_0_RELEASE'. This commit was manufactured to restore the state of the 6.0-RELEASE image.

s/TMDF_DONOTRUNUSER/TMDF_SUSPEND/g

2004-08-03T02:23:06Z

Dicussed with: deischen

Add code to support thread debugging.

2004-07-13T22:49:58Z

1. Add global varible _libkse_debug, debugger uses the varible to identify libpthread. when the varible is written to non-zero by debugger, libpthread will take some special action at context switch time, it will check TMDF_DOTRUNUSER flags, if a thread has the flags set by debugger, it won't be scheduled, when a thread leaves KSE critical region, thread checks the flag, if it was set, the thread relinquish CPU. 2. Add pq_first_debug to select a thread allowd to run by debugger. 3. Some names prefixed with _thr are renamed to _thread prefix. which is allowed to run by debugger.

o Don't add a scope system thread's KSE to the list of available

2003-04-28T23:56:12Z

KSEs when it's thread exits; allow the GC handler to do that. o Make spinlock/spinlock critical regions. The following were submitted by davidxu o Alow thr_switch() to take a null mailbox argument. o Better protect cancellation checks. o Don't set KSE specific data when creating new KSEs; rely on the first upcall of the KSE to set it. o Add the ability to set the maximum concurrency level and do this automatically. We should have a way to enable/disable this with some sort of tunable because some applications may not want this to be the default. o Hold the scheduling lock across thread switch calls. o If scheduling of a thread fails, make sure to remove it from the list of active threads. o Better protect accesses to a joining threads when the target thread is exited and detached. o Remove some macro definitions that are now provided by . o Don't leave the library in threaded mode if creation of the initial KSE fails. o Wakeup idle KSEs when there are threads ready to run. o Maintain the number of threads active in the priority queue.

Sorry folks; I accidentally committed a patch from what I was working

2003-04-18T07:09:43Z

on a couple of days ago. This should be the most recent changes. Noticed by: davidxu

Revamp libpthread so that it has a chance of working in an SMP

2003-04-18T05:04:16Z

environment. This includes support for multiple KSEs and KSEGs. The ability to create more than 1 KSE via pthread_setconcurrency() is in the works as well as support for PTHREAD_SCOPE_SYSTEM threads. Those should come shortly. There are still some known issues which davidxu and I are working on, but it'll make it easier for us by committing what we have. This library now passes all of the ACE tests that libc_r passes with the exception of one. It also seems to work OK with KDE including konqueror, kwrite, etc. I haven't been able to get mozilla to run due to lack of java plugin, so I'd be interested to see how it works with that. Reviewed by: davidxu

Use KSE to schedule threads.

2002-10-30T06:07:18Z

Make libpthread KSE aware.

2002-09-16T19:52:52Z

Reviewed by: deischen, julian Approved by: -arch

Make the changes needed for libpthread to compile in its new home.

2002-09-16T08:45:36Z

The new libpthread will provide POSIX threading support using KSE. These files were previously repo-copied from src/lib/libc_r. Reviewed by: deischen Approved by: -arch

Revamp suspend and resume. While I'm here add pthread_suspend_all_np()

2002-05-24T04:32:28Z

and pthread_resume_all_np(). These suspend and resume all threads except the current thread, respectively. The existing functions pthread_single_np() and pthread_multi_np(), which formerly had no effect, now exhibit the same behaviour and pthread_suspend_all_np() and pthread_resume_all_np(). These functions have been added mostly for the native java port. Don't allow the uthread kernel pipe to use the same descriptors as stdio. Mostily submitted by Oswald Buddenhagen . Correct some minor style nits.