From 44f3864ffcf205930a0cf7e553ab91f2cb01d02d Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Wed, 17 Feb 2010 16:52:15 -0800 Subject: move pthread_barrier_{init,destroy} to sysdeps/pthread for archs that implement their own like sparc and x86_64 Signed-off-by: Austin Foxley --- .../nptl/sysdeps/pthread/pthread_barrier_init.c | 71 ++++++++++++++++++++++ 1 file changed, 71 insertions(+) create mode 100644 libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c (limited to 'libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c') diff --git a/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c b/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c new file mode 100644 index 000000000..f0396f929 --- /dev/null +++ b/libpthread/nptl/sysdeps/pthread/pthread_barrier_init.c @@ -0,0 +1,71 @@ +/* Copyright (C) 2002, 2007 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Ulrich Drepper , 2002. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include +#include "pthreadP.h" +#include +#include + + +static const struct pthread_barrierattr default_attr = + { + .pshared = PTHREAD_PROCESS_PRIVATE + }; + + +int +pthread_barrier_init ( + pthread_barrier_t *barrier, + const pthread_barrierattr_t *attr, + unsigned int count) +{ + struct pthread_barrier *ibarrier; + + if (__builtin_expect (count == 0, 0)) + return EINVAL; + + const struct pthread_barrierattr *iattr + = (attr != NULL + ? iattr = (struct pthread_barrierattr *) attr + : &default_attr); + + if (iattr->pshared != PTHREAD_PROCESS_PRIVATE + && __builtin_expect (iattr->pshared != PTHREAD_PROCESS_SHARED, 0)) + /* Invalid attribute. */ + return EINVAL; + + ibarrier = (struct pthread_barrier *) barrier; + + /* Initialize the individual fields. */ + ibarrier->lock = LLL_LOCK_INITIALIZER; + ibarrier->left = count; + ibarrier->init_count = count; + ibarrier->curr_event = 0; + +#ifdef __ASSUME_PRIVATE_FUTEX + ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE + ? 0 : FUTEX_PRIVATE_FLAG); +#else + ibarrier->private = (iattr->pshared != PTHREAD_PROCESS_PRIVATE + ? 0 : THREAD_GETMEM (THREAD_SELF, + header.private_futex)); +#endif + + return 0; +} -- cgit v1.2.3