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* MFC r256925:Tijl Coosemans2013-10-251-0/+1
| | | | | | | | | | | | | | Add a dummy statement to the beginning of the pthread_cleanup_pop() macro to allow a call of the macro to be labelled as in: label: pthread_cleanup_pop(); Reviewed by: imp Approved by: re (glebius) Notes: svn path=/stable/10/; revision=257113
* Remove leftover for r214093.David Xu2011-01-061-9/+0
| | | | Notes: svn path=/head/; revision=217039
* Add pthread_rwlockattr_setkind_np and pthread_rwlockattr_getkind_np, theDavid Xu2010-10-181-2/+14
| | | | | | | | | | | | functions set or get pthread_rwlock type, current supported types are: PTHREAD_RWLOCK_PREFER_READER_NP, PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, PTHREAD_RWLOCK_PREFER_WRITER_NP, default is PTHREAD_RWLOCK_PREFER_WRITER_NONCECURSIVE_NP, this maintains binary compatible with old code. Notes: svn path=/head/; revision=214007
* In current code, statically initialized and destroyed object haveDavid Xu2010-09-281-1/+1
| | | | | | | | | | | same null value, the code can not distinguish between them, to fix the problem, now a destroyed object is assigned to a non-null value, and it will be rejected by some pthread functions. PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP is changed to number 1, so that adaptive mutex can be statically initialized correctly. Notes: svn path=/head/; revision=213241
* Fix the visibility of several prototypes. Also move pthread_kill() andDavid Schultz2009-03-141-2/+4
| | | | | | | | | | | | | pthread_sigmask() to signal.h. In principle, this shouldn't break anything, since they're already in signal.h on other systems, and the FreeBSD manpage says that both pthread.h and signal.h need to be included to get these functions. Add a hack to declare pthread_t in the P1003.1-2008 namespace in signal.h. Notes: svn path=/head/; revision=189828
* Make pthread_cleanup_push() and pthread_cleanup_pop() as a pair of macros,David Xu2008-06-091-2/+21
| | | | | | | | | | use stack space to keep cleanup information, this eliminates overhead of calling malloc() and free() in thread library. Discussed on: thread@ Notes: svn path=/head/; revision=179662
* Add POSIX pthread API pthread_getcpuclockid() to get a thread's cpuDavid Xu2008-03-221-0/+1
| | | | | | | time clock id. Notes: svn path=/head/; revision=177494
* Add a new "non-portable" mutex type, PTHREAD_MUTEX_ADAPTIVE_NP. ThisKris Kennaway2007-10-291-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | is also implemented in glibc and is used by a number of existing applications (mysql, firefox, etc). This mutex type is a default mutex with the additional property that it spins briefly when attempting to acquire a contested lock, doing trylock operations in userland before entering the kernel to block if eventually unsuccessful. The expectation is that applications requesting this mutex type know that the mutex is likely to be only held for very brief periods, so it is faster to spin in userland and probably succeed in acquiring the mutex, than to enter the kernel and sleep, only to be woken up almost immediately. This can help significantly in certain cases when pthread mutexes are heavily contended and held for brief durations (such as mysql). Spin up to 200 times before entering the kernel, which represents only a few us on modern CPUs. No performance degradation was observed with this value and it is sufficient to avoid a large performance drop in mysql performance in the heavily contended pthread mutex case. The libkse implementation is a NOP. Reviewed by: jeff MFC after: 3 days Notes: svn path=/head/; revision=173154
* Add prototype for following functions, plus tab fixes.David Xu2005-10-241-5/+8
| | | | | | | | | | pthread_condattr_getpshared pthread_condattr_setpshared pthread_mutexattr_getpshared pthread_mutexattr_setpshared Notes: svn path=/head/; revision=151617
* Improve POSIX conformance:Stefan Farfeleder2005-09-011-7/+7
| | | | | | | | | | | | | | | - Don't pollute the namespace by including <sys/types.h>, <sys/time.h>, <sys/signal.h> and <limits.h>. Use __MINSIGSTKSZ and __ULONG_MAX from <machine/_limits.h>, __sigset_t from <sys/_sigset.h> instead. - Include <time.h> because POSIX says we have to. PTHREAD_{DESTRUCTOR_ITERATIONS,KEYS_MAX,STACK_MIN,THREADS_MAX} should eventually move to <limits.h> but are left here for now. Discussed on: standards@, threads@ Notes: svn path=/head/; revision=149692
* - Prefix MUTEX_TYPE_MAX with PTHREAD_ to avoid namespace pollution.Stefan Farfeleder2005-08-191-5/+1
| | | | | | | | | - Remove the macros MUTEX_TYPE_FAST and MUTEX_TYPE_COUNTING_FAST. OK'ed by: deischen Notes: svn path=/head/; revision=149298
* Remove parameter names, the identifiers were in the user namespace.Stefan Farfeleder2005-08-191-5/+3
| | | | Notes: svn path=/head/; revision=149273
* According to:Craig Rodrigues2005-05-311-56/+1
| | | | | | | | | | | | | | http://www.opengroup.org/onlinepubs/009695399/basedefs/sys/types.h.html #include <sys/types.h> should include the definitions of pthread types. PR: standards/78907 Reported by: Brooks Davis Approved by: das (mentor) Notes: svn path=/head/; revision=146824
* Increase PTHREAD_STACK_MIN to MINSIGSTKSZ because thread libraries now useDavid Xu2005-04-111-1/+1
| | | | | | | | | makecontext which enforces a minimum stack size to be MINSIGSTKSZ. Bug report: Bill Middleton <flashdict at gmail dot com>, BSD-sharp project. Notes: svn path=/head/; revision=144892
* Add pthread_condattr_getclock, pthread_condattr_setclock.David Xu2005-04-031-0/+4
| | | | Notes: svn path=/head/; revision=144615
* Fix typo, function name pthread_rwlock_timedrwlock should beDavid Xu2005-01-081-1/+1
| | | | | | | pthread_rwlock_timedwrlock. Notes: svn path=/head/; revision=139902
* Add the pthread_atfork() prototype.Daniel Eischen2003-11-041-0/+2
| | | | | | | Reviewed by: davidxu Notes: svn path=/head/; revision=122076
* Add code to support pthread spin lock.David Xu2003-09-091-0/+7
| | | | | | | Reviewed by: deischen Notes: svn path=/head/; revision=119909
* Add small piece of code to support pthread_rwlock_timedrdlock andDavid Xu2003-09-061-0/+4
| | | | | | | pthread_rwlock_timedrwlock. Notes: svn path=/head/; revision=119790
* Add code to support barrier synchronous object and implementDavid Xu2003-09-041-0/+16
| | | | | | | | | pthread_mutex_timedlock(). Reviewed by: deischen Notes: svn path=/head/; revision=119736
* Add stub implementations of pthread_[gs]etconcurrency to libc_r andJohn Polstra2003-04-201-0/+2
| | | | | | | | | | | | libthr. No changes were made to libpthread by request of deischen, who will soon commit a real implementation for that library. PR: standards/50848 Submitted by: Sergey A. Osokin <osa@freebsd.org.ru> MFC after: 1 week Notes: svn path=/head/; revision=113729
* Add pthread_attr_getstack() and pthread_attr_setstack().Alfred Perlstein2003-02-101-0/+4
| | | | | | | Submitted by: Craig Rodrigues <rodrigc@attbi.com> Notes: svn path=/head/; revision=110636
* In the absence of consensus as to implement stubs for these TSH-shadedGarrett Wollman2003-01-231-12/+0
| | | | | | | | | routines, remove their declarations. Even though rwlocks have the same functions, XBDft does not shade those declarations so I am leaving them in. (This is probably a bug in the Standard.) Notes: svn path=/head/; revision=109719
* Breath deep and take __P out of the system include files.Warner Losh2002-03-231-107/+96
| | | | | | | | | # This appears to not break X11, but I'm having problems compiling the # glide part of the server with or without this patch, so I can't tell # for sure. Notes: svn path=/head/; revision=93032
* Implement pthread_attr_[gs]etguardsize(). Non-default-size stacks used toJason Evans2001-07-201-0/+3
| | | | | | | | | | | be malloc()ed, but they are now allocated using mmap(), just as the default-size stacks are. A separate cache of stacks is kept for non-default-size stacks. Collaboration with: deischen Notes: svn path=/head/; revision=80021
* mark pthread_exit() as non-returning.Alfred Perlstein2001-03-041-1/+1
| | | | | | | Requested by: Farooq Mela <fmela0@sm.socccd.cc.ca.us> Notes: svn path=/head/; revision=73548
* Remove prototypes for pthread_attr_[gs]etfloatstate(), which we don'tJason Evans2000-12-281-3/+0
| | | | | | | implement. Notes: svn path=/head/; revision=70442
* Fixed missing consts for function parameters, so that the code matchesBruce Evans2000-05-111-3/+7
| | | | | | | | the man page and POSIX.1. Fixed nearby misformatting. Fixed a missing prototype. Notes: svn path=/head/; revision=60382
* Do not conditionalize function prototype definition for functions weJason Evans2000-02-201-6/+0
| | | | | | | | | | implement. Noticed by: Thimble Smith <tim@mysql.com> Approved by: jkh Notes: svn path=/head/; revision=57350
* Make sched_param parameter a const to comply with POSIX and SUSv2 specs.Daniel Eischen2000-01-101-1/+1
| | | | | | | | | | This doesn't need to be applied to stable, because somehow -stable seems to have gotten it right. Reviewed by: jasone Notes: svn path=/head/; revision=55708
* Fix some minor POSIX/SUSv2 compliance nits.Jason Evans1999-12-181-4/+2
| | | | | | | PR: kern/11982 Notes: svn path=/head/; revision=54757
* Move POSIX feature constants from pthread.h to unistd.h, as required byJason Evans1999-12-161-17/+0
| | | | | | | | | | | | | | | | | 1003.1c-1995. Undefine _POSIX_THREAD_SAFE_FUNCTIONS, since we do not implement all of the necessary interfaces. At least getgrgid_r(), getrnam_r(), getpwuid_r(), getpwnam_r(), getc_unlocked(), getchar_unlocked(), putc_unlocked(), and putchar_unlocked() are missing. Due to a likely typo in 1003.1c-1995, we are not technically allowed to define _POSIX_THREADS without defining _POSIX_THREAD_SAFE_FUNCTIONS, but either way we're non-compliant, so I'm leaving _POSIX_THREADS defined. PR: bin/8281 Notes: svn path=/head/; revision=54699
* add pthread_cancel, obtained from OpenBSD.Alfred Perlstein1999-11-281-7/+14
| | | | | | | | | | | | | | | | | eischen (Daniel Eischen) added wrappers to protect against cancled threads orphaning internal resources. the cancelability code is still a bit fuzzy but works for test programs of my own, OpenBSD's and some examples from ORA's books. add readdir_r to both libc and libc_r add some 'const' attributes to function parameters Reviewed by: eischen, jasone Notes: svn path=/head/; revision=53812
* $Id$ -> $FreeBSD$Peter Wemm1999-08-271-1/+1
| | | | Notes: svn path=/head/; revision=50473
* Cleanups to the pthread header files.Ralf S. Engelschall1999-07-311-22/+22
| | | | | | | | Submitted by: Ralf S. Engelschall <rse@engelschall.com> Reviewed by: John Birrell <jb@cimlogic.com.au> Notes: svn path=/head/; revision=49307
* Hide pthread cancellation routines behind #ifdef NOT_YET. They areDaniel Eischen1999-07-271-3/+7
| | | | | | | | | | | | not currently supported. Also corrected the declaration for pthread_testcancel which incorrectly returned int when POSIX and SUSv2 both say it should be void. Submitted by: Ralf S. Engelschall <rse@engelschall.com> Reviewed by: John Birrell <jb@freebsd.org> Notes: svn path=/head/; revision=49127
* o Runnable threads are now maintained in priority queues. TheJohn Birrell1999-03-231-36/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implementation requires two things: 1.) The priority queues must be protected during insertion and removal of threads. Since the kernel scheduler must modify the priority queues, a spinlock for protection cannot be used. The functions _thread_kern_sched_defer() and _thread_kern_sched_undefer() were added to {un}defer kernel scheduler activation. 2.) A thread (active) priority change can be performed only when the thread is removed from the priority queue. The implementation uses a threads active priority when inserting it into the queue. A by-product is that thread switches are much faster. A separate queue is used for waiting and/or blocked threads, and it is searched at most 2 times in the kernel scheduler when there are active threads. It should be possible to reduce this to once by combining polling of threads waiting on I/O with the loop that looks for timed out threads and the minimum timeout value. o Functions to defer kernel scheduler activation were added. These are _thread_kern_sched_defer() and _thread_kern_sched_undefer() and may be called recursively. These routines do not block the scheduling signal, but latch its occurrence. The signal handler will not call the kernel scheduler when the running thread has deferred scheduling, but it will be called when running thread undefers scheduling. o Added support for _POSIX_THREAD_PRIORITY_SCHEDULING. All the POSIX routines required by this should now be implemented. One note, SCHED_OTHER, SCHED_FIFO, and SCHED_RR are required to be defined by including pthread.h. These defines are currently in sched.h. I modified pthread.h to include sched.h but don't know if this is the proper thing to do. o Added support for priority protection and inheritence mutexes. This allows definition of _POSIX_THREAD_PRIO_PROTECT and _POSIX_THREAD_PRIO_INHERIT. o Added additional error checks required by POSIX for mutexes and condition variables. o Provided a wrapper for sigpending which is marked as a hidden syscall. o Added a non-portable function as a debugging aid to allow an application to monitor thread context switches. An application can install a routine that gets called everytime a thread (explicitly created by the application) gets context switched. The routine gets passed the pthread IDs of the threads that are being switched in and out. I found this useful, but we can get rid of it if you want. Submitted by: Dan Eischen <eischen@vigrid.com> Notes: svn path=/head/; revision=44965
* Add support for pthread_mutexattr_settype(). As a side effect ofEivind Eklund1998-11-281-2/+8
| | | | | | | testing this, fix MUTEX_TYPE_COUNTING_FAST. Recursive locks now work. Notes: svn path=/head/; revision=41390
* Implement pthread read/write locks as defined by Version 2 of the SingleAlexander Langer1998-09-071-0/+25
| | | | | | | | | | UNIX Specification. As with our standard mutexes, process shared locks are not supported at this time. Notes: svn path=/head/; revision=38919
* Add static initializer defines as specified by POSIX.John Birrell1998-04-041-2/+8
| | | | Notes: svn path=/head/; revision=35025
* Changed pthread_detach to conform to POSIX, i.e. the single argumentAlexander Langer1997-12-251-1/+1
| | | | | | | | | | | | provided is of type pthread_t instead of pthread_t *. PR: 4320 Return EINVAL instead of ESRCH if attempting to detach an already detached thread. Notes: svn path=/head/; revision=31985
* Fixed missing __P() to complete the K&R support in this header.Bruce Evans1997-05-071-1/+1
| | | | Notes: svn path=/head/; revision=25519
* Comment out _POSIX_THREAD_PRIORITY_SCHEDULING since it's not supportedAlexander Langer1997-03-041-1/+1
| | | | | | | | | at this time. Reviewed by: John Birrell <jb@cimlogic.com.au> Notes: svn path=/head/; revision=23364
* Submitted by: John BirrellJulian Elischer1997-02-051-2/+15
| | | | | | | uthreads update from the author. Notes: svn path=/head/; revision=22315
* Moved pthread_mutexattr_default inside #ifndef PTHREAD_KERNEL now thatJeffrey Hsu1996-11-111-2/+8
| | | | | | | | | we use it in the uthreads implementation. Moved enum pthread_mutextype here from libc_r/uthread/pthread_private.h. Change prototype for pthread_getspecific(). Notes: svn path=/head/; revision=19637
* Submitted by: John Birrell <cimaxp1!jb@werple.net.au>Julian Elischer1996-08-201-186/+141
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here are the diffs for libc_r to get it one step closer to P1003.1c These make most of the thread/mutex/condvar structures opaque to the user. There are three functions which have been renamed with _np suffixes because they are extensions to P1003.1c (I did them for JAVA, which needs to suspend/resume threads and also start threads suspended). I've created a new header (pthread_np.h) for the non-POSIX stuff. The egrep tags stuff in /usr/src/lib/libc_r/Makefile that I uncommented doesn't work. I think its best to delete it. I don't think libc_r needs tags anyway, 'cause most of the source is in libc which does have tags. also: Here's the first batch of man pages for the thread functions. The diff to /usr/src/lib/libc_r/Makefile removes some stuff that was inherited from /usr/src/lib/libc/Makefile that should only be done with libc. also: I should have sent this diff with the pthread(3) man page. It allows people to type make -DWANT_LIBC_R world to get libc_r built with the rest of the world. I put this in the pthread(3) man page. The default is still not to build libc_r. also: The diff attached adds a pthread(3) man page to /usr/src/share/man/man3. The idea is that without libc_r installed, this man page will give people enough info to know that they have to build libc_r. Notes: svn path=/head/; revision=17706
* Submitted by: john birrelJulian Elischer1996-01-221-0/+276
Obtained from: uthread package thrreads definitions Notes: svn path=/head/; revision=13547
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