1.\" $NetBSD: pthread.3,v 1.8 2008/05/09 08:31:13 wiz Exp $ 2.\" 3.\" Copyright (c) 2003, 2007 The NetBSD Foundation, Inc. 4.\" All rights reserved. 5.\" 6.\" This code is derived from software contributed to The NetBSD Foundation 7.\" by Hubert Feyrer <hubertf@NetBSD.org> and Thomas Klausner <wiz@NetBSD.org>. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 18.\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19.\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20.\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21.\" PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28.\" POSSIBILITY OF 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