NetBSD/lib/libpthread/pthread.3

.\"	$NetBSD: pthread.3,v 1.8 2008/05/09 08:31:13 wiz Exp $
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.\" This code is derived from software contributed to The NetBSD Foundation
.\" by Hubert Feyrer <hubertf@NetBSD.org> and Thomas Klausner <wiz@NetBSD.org>.
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.Dd November 19, 2007
.Dt PTHREAD 3
.Os
.Sh NAME
.Nm pthread
.Nd POSIX Threads Library
.Sh LIBRARY
.Lb libpthread
.Sh SYNOPSIS
.In pthread.h
.Pp
.Nm cc
.Op Ar flags
.Ar files
.Fl lpthread
.Op Ar libraries
.Sh DESCRIPTION
The
.Nm
library provides an implementation of the standard
.Tn POSIX
threads framework.
.Pp
Note that the system private thread interfaces upon which the
.Nm
library is built are subject to change without notice.
In order to remain compatible with future
.Nx
releases, programs must be linked against the dynamic version of the
thread library.
Statically linked programs using the
.Tn POSIX
threads framework may not work when run on a future version of the system.
.Sh ENVIRONMENT
.Bl -tag -width PTHREAD_DEBUGCOUNTERSXX
.It Ev PTHREAD_CONCURRENCY
The current version of the system does not inspect this variable.
It is reserved for use by the
.Nm
library.
.It Ev PTHREAD_DIAGASSERT
Possible values are any combinations of:
.Bl -tag -width ignoreXX -offset indent -compact
.It Sy A
Ignore errors.
.It Sy a
Abort on errors, creating a core dump for further debugging.
.It Sy E
Do not log errors to stdout.
.It Sy e
Log errors to stdout.
.It Sy L
Do not log errors via
.Xr syslogd 8 .
.It Sy l
Log errors via
.Xr syslogd 8 .
.El
.It Ev PTHREAD_RRTIME
The current version of the system does not inspect this variable.
It is reserved for use by the
.Nm
library.
.It Ev PTHREAD_STACKSIZE
Integer value giving the stack size in kilobytes.
This allows to set a smaller stack size than the default stack size.
The default stack size is the current limit on the stack size as
set with the shell's command to change limits
.Ic ( limit
for
.Xr csh 1 ,
or
.Ic ulimit
for
.Xr sh 1 ) .
.El
.Sh SEE ALSO
.Xr pthread_attr 3 ,
.Xr pthread_barrier_destroy 3 ,
.Xr pthread_barrier_init 3 ,
.Xr pthread_barrier_wait 3 ,
.Xr pthread_barrierattr 3 ,
.Xr pthread_cancel 3 ,
.Xr pthread_cleanup_push 3 ,
.Xr pthread_cond_broadcast 3 ,
.Xr pthread_cond_destroy 3 ,
.Xr pthread_cond_init 3 ,
.Xr pthread_cond_wait 3 ,
.Xr pthread_condattr 3 ,
.Xr pthread_create 3 ,
.Xr pthread_detach 3 ,
.Xr pthread_equal 3 ,
.Xr pthread_exit 3 ,
.Xr pthread_getspecific 3 ,
.Xr pthread_join 3 ,
.Xr pthread_key_create 3 ,
.Xr pthread_key_delete 3 ,
.Xr pthread_kill 3 ,
.Xr pthread_mutex_destroy 3 ,
.Xr pthread_mutex_init 3 ,
.Xr pthread_mutex_lock 3 ,
.Xr pthread_mutex_unlock 3 ,
.Xr pthread_mutexattr 3 ,
.Xr pthread_once 3 ,
.Xr pthread_rwlock_destroy 3 ,
.Xr pthread_rwlock_init 3 ,
.Xr pthread_rwlock_rdlock 3 ,
.Xr pthread_rwlock_unlock 3 ,
.Xr pthread_rwlock_wrlock 3 ,
.Xr pthread_rwlockattr 3 ,
.Xr pthread_schedparam 3 ,
.Xr pthread_self 3 ,
.Xr pthread_setspecific 3 ,
.Xr pthread_sigmask 3 ,
.Xr pthread_spin_destroy 3 ,
.Xr pthread_spin_init 3 ,
.Xr pthread_spin_lock 3 ,
.Xr pthread_spin_unlock 3 ,
.Xr pthread_testcancel 3
.Sh STANDARDS
The
.Nm
library conforms to
.St -p1003.1-2001 .