Mercurial > hg > CbC > CbC_gcc
view libgomp/config/posix/ptrlock.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | a06113de4d67 |
children | 84e7813d76e9 |
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/* Copyright (C) 2008-2017 Free Software Foundation, Inc. Contributed by Jakub Jelinek <jakub@redhat.com>. This file is part of the GNU Offloading and Multi Processing Library (libgomp). Libgomp is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. Libgomp 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 General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see <http://www.gnu.org/licenses/>. */ /* This is a generic POSIX implementation of a mutex synchronization mechanism for libgomp. This type is private to the library. */ #ifndef GOMP_PTRLOCK_H #define GOMP_PTRLOCK_H 1 typedef struct { void *ptr; gomp_mutex_t lock; } gomp_ptrlock_t; static inline void gomp_ptrlock_init (gomp_ptrlock_t *ptrlock, void *ptr) { ptrlock->ptr = ptr; gomp_mutex_init (&ptrlock->lock); } static inline void *gomp_ptrlock_get (gomp_ptrlock_t *ptrlock) { if (ptrlock->ptr != NULL) return ptrlock->ptr; gomp_mutex_lock (&ptrlock->lock); if (ptrlock->ptr != NULL) { gomp_mutex_unlock (&ptrlock->lock); return ptrlock->ptr; } return NULL; } static inline void gomp_ptrlock_set (gomp_ptrlock_t *ptrlock, void *ptr) { ptrlock->ptr = ptr; gomp_mutex_unlock (&ptrlock->lock); } static inline void gomp_ptrlock_destroy (gomp_ptrlock_t *ptrlock) { gomp_mutex_destroy (&ptrlock->lock); } #endif /* GOMP_PTRLOCK_H */