From e64ac02c24b43659048622714afdc92fedf561fa Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Sun, 1 Jul 2012 13:06:41 +0000 Subject: Move all files into ports/ subdirectory in preparation for merge with glibc --- ports/sysdeps/ia64/nptl/pthread_spin_trylock.c | 27 ++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 ports/sysdeps/ia64/nptl/pthread_spin_trylock.c (limited to 'ports/sysdeps/ia64/nptl/pthread_spin_trylock.c') diff --git a/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c b/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c new file mode 100644 index 0000000000..9efd3b586b --- /dev/null +++ b/ports/sysdeps/ia64/nptl/pthread_spin_trylock.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Jakub Jelinek , 2003. + + 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, see + . */ + +#include +#include "pthreadP.h" + +int +pthread_spin_trylock (lock) + pthread_spinlock_t *lock; +{ + return __sync_val_compare_and_swap ((int *) lock, 0, 1) == 0 ? 0 : EBUSY; +} -- cgit v1.2.3