From c68d0fa2d88fc2134a38d99e7e944828384a7671 Mon Sep 17 00:00:00 2001 From: Austin Foxley Date: Sat, 17 Oct 2009 12:26:24 -0700 Subject: libpthread/nptl: core of the "Native Posix Threading Library" for uClibc targetting arm,sh,i386,mips,sparc for now Signed-off-by: Austin Foxley --- libpthread/nptl/pthread_barrier_destroy.c | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) create mode 100644 libpthread/nptl/pthread_barrier_destroy.c (limited to 'libpthread/nptl/pthread_barrier_destroy.c') diff --git a/libpthread/nptl/pthread_barrier_destroy.c b/libpthread/nptl/pthread_barrier_destroy.c new file mode 100644 index 000000000..492b29485 --- /dev/null +++ b/libpthread/nptl/pthread_barrier_destroy.c @@ -0,0 +1,44 @@ +/* Copyright (C) 2002 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 + + +int +pthread_barrier_destroy (barrier) + pthread_barrier_t *barrier; +{ + struct pthread_barrier *ibarrier; + int result = EBUSY; + + ibarrier = (struct pthread_barrier *) barrier; + + lll_lock (ibarrier->lock); + + if (__builtin_expect (ibarrier->left == ibarrier->init_count, 1)) + /* The barrier is not used anymore. */ + result = 0; + else + /* Still used, return with an error. */ + lll_unlock (ibarrier->lock); + + return result; +} -- cgit v1.2.3