1.\" $NetBSD: pthread.3,v 1.7 2007/11/19 15:53:20 ad Exp $ 2.\" 3.\" Copyright (c) 2003 Hubert Feyrer <hubertf@NetBSD.org> 4.\" and Thomas Klausner <wiz@NetBSD.org> 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. The name of the authors may not be used to endorse or promote products 16.\" derived from this software without specific prior written permission. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 19.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21.\" IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 22.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28.\" SUCH DAMAGE. 29.\" 30.Dd November 19, 2007 31.Dt PTHREAD 3 32.Os 33.Sh NAME 34.Nm pthread 35.Nd POSIX Threads Library 36.Sh LIBRARY 37.Lb libpthread 38.Sh SYNOPSIS 39.In pthread.h 40.Pp 41.Nm cc 42.Op Ar flags 43.Ar files 44.Fl lpthread 45.Op Ar libraries 46.Sh DESCRIPTION 47The 48.Nm 49library provides an implementation of the standard 50.Tn POSIX 51threads framework. 52.Pp 53Note that the system private thread interfaces upon which the 54.Nm 55library is built are subject to change without notice. 56In order to remain compatible with future 57.Nx 58releases, programs must be linked against the dynamic version of the 59thread library. 60Statically linked programs using the 61.Tn POSIX 62threads framework may not work when run on a future version of the system. 63.Sh ENVIRONMENT 64.Bl -tag -width PTHREAD_DEBUGCOUNTERSXX 65.It Ev PTHREAD_CONCURRENCY 66The current version of the system does not inspect this variable. 67It is reserved for use by the 68.Nm 69library. 70.It Ev PTHREAD_DIAGASSERT 71Possible values are any combinations of: 72.Bl -tag -width ignoreXX -offset indent -compact 73.It Sy A 74Ignore errors. 75.It Sy a 76Abort on errors, creating a core dump for further debugging. 77.It Sy E 78Do not log errors to stdout. 79.It Sy e 80Log errors to stdout. 81.It Sy L 82Do not log errors via 83.Xr syslogd 8 . 84.It Sy l 85Log errors via 86.Xr syslogd 8 . 87.El 88.It Ev PTHREAD_RRTIME 89The current version of the system does not inspect this variable. 90It is reserved for use by the 91.Nm 92library. 93.It Ev PTHREAD_STACKSIZE 94Integer value giving the stack size in kilobytes. 95This allows to set a smaller stack size than the default stack size. 96The default stack size is the current limit on the stack size as 97set with the shell's command to change limits 98.Ic ( limit 99for 100.Xr csh 1 , 101or 102.Ic ulimit 103for 104.Xr sh 1 ) . 105.El 106.Sh SEE ALSO 107.Xr pthread_attr 3 , 108.Xr pthread_barrier_destroy 3 , 109.Xr pthread_barrier_init 3 , 110.Xr pthread_barrier_wait 3 , 111.Xr pthread_barrierattr 3 , 112.Xr pthread_cancel 3 , 113.Xr pthread_cleanup_push 3 , 114.Xr pthread_cond_broadcast 3 , 115.Xr pthread_cond_destroy 3 , 116.Xr pthread_cond_init 3 , 117.Xr pthread_cond_wait 3 , 118.Xr pthread_condattr 3 , 119.Xr pthread_create 3 , 120.Xr pthread_detach 3 , 121.Xr pthread_equal 3 , 122.Xr pthread_exit 3 , 123.Xr pthread_getspecific 3 , 124.Xr pthread_join 3 , 125.Xr pthread_key_create 3 , 126.Xr pthread_key_delete 3 , 127.Xr pthread_kill 3 , 128.Xr pthread_mutex_destroy 3 , 129.Xr pthread_mutex_init 3 , 130.Xr pthread_mutex_lock 3 , 131.Xr pthread_mutex_unlock 3 , 132.Xr pthread_mutexattr 3 , 133.Xr pthread_once 3 , 134.Xr pthread_rwlock_destroy 3 , 135.Xr pthread_rwlock_init 3 , 136.Xr pthread_rwlock_rdlock 3 , 137.Xr pthread_rwlock_unlock 3 , 138.Xr pthread_rwlock_wrlock 3 , 139.Xr pthread_rwlockattr 3 , 140.Xr pthread_schedparam 3 , 141.Xr pthread_self 3 , 142.Xr pthread_setspecific 3 , 143.Xr pthread_sigmask 3 , 144.Xr pthread_spin_destroy 3 , 145.Xr pthread_spin_init 3 , 146.Xr pthread_spin_lock 3 , 147.Xr pthread_spin_unlock 3 , 148.Xr pthread_testcancel 3 149.Sh STANDARDS 150The 151.Nm 152library conforms to 153.St -p1003.1-2001 . 154