mutex.h revision 1.2.4.2
1 1.2.4.2 rmind /* $NetBSD: mutex.h,v 1.2.4.2 2014/05/18 17:46:01 rmind Exp $ */ 2 1.2.4.2 rmind 3 1.2.4.2 rmind /*- 4 1.2.4.2 rmind * Copyright (c) 2013 The NetBSD Foundation, Inc. 5 1.2.4.2 rmind * All rights reserved. 6 1.2.4.2 rmind * 7 1.2.4.2 rmind * This code is derived from software contributed to The NetBSD Foundation 8 1.2.4.2 rmind * by Taylor R. Campbell. 9 1.2.4.2 rmind * 10 1.2.4.2 rmind * Redistribution and use in source and binary forms, with or without 11 1.2.4.2 rmind * modification, are permitted provided that the following conditions 12 1.2.4.2 rmind * are met: 13 1.2.4.2 rmind * 1. Redistributions of source code must retain the above copyright 14 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer. 15 1.2.4.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 16 1.2.4.2 rmind * notice, this list of conditions and the following disclaimer in the 17 1.2.4.2 rmind * documentation and/or other materials provided with the distribution. 18 1.2.4.2 rmind * 19 1.2.4.2 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.2.4.2 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.2.4.2 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.2.4.2 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.2.4.2 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.2.4.2 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.2.4.2 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.2.4.2 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.2.4.2 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.2.4.2 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.2.4.2 rmind * POSSIBILITY OF SUCH DAMAGE. 30 1.2.4.2 rmind */ 31 1.2.4.2 rmind 32 1.2.4.2 rmind #ifndef _LINUX_MUTEX_H_ 33 1.2.4.2 rmind #define _LINUX_MUTEX_H_ 34 1.2.4.2 rmind 35 1.2.4.2 rmind #include <sys/mutex.h> 36 1.2.4.2 rmind 37 1.2.4.2 rmind struct mutex { 38 1.2.4.2 rmind kmutex_t mtx_lock; 39 1.2.4.2 rmind }; 40 1.2.4.2 rmind 41 1.2.4.2 rmind /* Name collision. Pooh. */ 42 1.2.4.2 rmind static inline void 43 1.2.4.2 rmind linux_mutex_init(struct mutex *mutex) 44 1.2.4.2 rmind { 45 1.2.4.2 rmind mutex_init(&mutex->mtx_lock, MUTEX_DEFAULT, IPL_NONE); 46 1.2.4.2 rmind } 47 1.2.4.2 rmind 48 1.2.4.2 rmind /* Another name collision. */ 49 1.2.4.2 rmind static inline void 50 1.2.4.2 rmind linux_mutex_destroy(struct mutex *mutex) 51 1.2.4.2 rmind { 52 1.2.4.2 rmind mutex_destroy(&mutex->mtx_lock); 53 1.2.4.2 rmind } 54 1.2.4.2 rmind 55 1.2.4.2 rmind static inline void 56 1.2.4.2 rmind mutex_lock(struct mutex *mutex) 57 1.2.4.2 rmind { 58 1.2.4.2 rmind mutex_enter(&mutex->mtx_lock); 59 1.2.4.2 rmind } 60 1.2.4.2 rmind 61 1.2.4.2 rmind static inline int 62 1.2.4.2 rmind mutex_lock_interruptible(struct mutex *mutex) 63 1.2.4.2 rmind { 64 1.2.4.2 rmind mutex_enter(&mutex->mtx_lock); /* XXX */ 65 1.2.4.2 rmind return 0; 66 1.2.4.2 rmind } 67 1.2.4.2 rmind 68 1.2.4.2 rmind static inline int 69 1.2.4.2 rmind mutex_trylock(struct mutex *mutex) 70 1.2.4.2 rmind { 71 1.2.4.2 rmind return mutex_tryenter(&mutex->mtx_lock); 72 1.2.4.2 rmind } 73 1.2.4.2 rmind 74 1.2.4.2 rmind static inline void 75 1.2.4.2 rmind mutex_unlock(struct mutex *mutex) 76 1.2.4.2 rmind { 77 1.2.4.2 rmind mutex_exit(&mutex->mtx_lock); 78 1.2.4.2 rmind } 79 1.2.4.2 rmind 80 1.2.4.2 rmind static inline bool 81 1.2.4.2 rmind mutex_is_locked(struct mutex *mutex) 82 1.2.4.2 rmind { 83 1.2.4.2 rmind return mutex_owned(&mutex->mtx_lock); 84 1.2.4.2 rmind } 85 1.2.4.2 rmind 86 1.2.4.2 rmind #endif /* _LINUX_MUTEX_H_ */ 87
Indexes created Tue Sep 30 11:09:46 GMT 2025