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Add pthread(3), based on one by Hubert Feyrer, improved by yours truly,

Browse Source 
reviewed by Nathan J. Williams.
This commit is contained in:
wiz 2003-07-24 07:50:24 +00:00
parent b178c0d519
commit 576530e520
2 changed files with 167 additions and 2 deletions
lib/libpthread
Makefilepthread.3

5
lib/libpthread/Makefile

@ -1,4 +1,4 @@
# $NetBSD: Makefile,v 1.18 2003/07/18 22:33:45 nathanw Exp $
# $NetBSD: Makefile,v 1.19 2003/07/24 07:50:24 wiz Exp $
#
WARNS= 2
@ -62,7 +62,8 @@ SRCS+= pthread_switch.S _context_u.S
SRCS+= pthread_md.c
.endif
MAN+= pthread_attr.3 \
MAN+= pthread.3 \
pthread_attr.3 \
pthread_barrier_destroy.3 pthread_barrier_init.3 \
pthread_barrier_wait.3 pthread_barrierattr.3 \
pthread_cancel.3 pthread_cleanup_push.3 \

164
lib/libpthread/pthread.3 Normal file

@ -0,0 +1,164 @@
.\" $NetBSD: pthread.3,v 1.1 2003/07/24 07:50:25 wiz Exp $
.\"
.\" Copyright (c) 2003 Hubert Feyrer <hubertf@netbsd.org>
.\" and Thomas Klausner <wiz@NetBSD.org>
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
.\" 3. The name of the authors may not be used to endorse or promote products
.\" derived from this software without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
.\" IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
.\" BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
.\" LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
.\" AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
.\" OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.Dd June 21, 2003
.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 is an implementation of the standard
.Tn POSIX
threads library using the Scheduler Activations framework
in the
.Nx
kernel, providing a kernel-supported MxN scheduling system.
.Sh ENVIRONMENT
.Bl -tag -width PTHREAD_DEBUGCOUNTERSXX -compact
.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_DEBUGCOUNTERS
Print pthread event counters before the program terminates.
.It Ev PTHREAD_DEBUGLOG
Write debugging information into shared memory.
This debug log can be parsed and printed by the
.Nm debuglog
program found in
.Pa src/lib/libpthread/debuglog.c .
.\" Following commented out since it will be removed shortly.
.\".It Ev PTHREAD_PREEMPT
.\"Generate upcalls on a vanilla
.\".Fn preempt .
.It Ev PTHREAD_RRTIME
Integer value giving the round-robin interval in ms.
The default is 100.
If set to 0, timer-based round-robin scheduling is disabled.
.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
.Rs
.%A Thomas E. Anderson
.%A Brian N. Bershad
.%A Edward D. Lazowska
.%A Henry M. Levy
.%T "Scheduler Activations: Effective Kernel Support for the \
User-Level Management of Parallelism"
.%J ACM Transactions on Computer Systems
.%V Vol. 10
.%N No. 1
.%D February 1992
.%P 53-79
.Re
.Rs
.%A Nathan J. Williams
.%T "An Implementation of Scheduler Activations on the NetBSD \
Operating System"
.%J "Proceedings of the FREENIX Track: 2002 USENIX Annual Technical \
Conference (FREENIX '02)"
.%D 2002
.%O http://www.mit.edu/people/nathanw/usenix/
.Re
.Sh STANDARDS
The
.Nm
library conforms to
.St -p1003.1-2001 .
.Sh AUTHORS
.An Nathan J. Williams
.Aq nathanw@NetBSD.org