| 1 | /* |
| 2 | * Copyright 2000, International Business Machines Corporation and others. |
| 3 | * All Rights Reserved. |
| 4 | * |
| 5 | * This software has been released under the terms of the IBM Public |
| 6 | * License. For details, see the LICENSE file in the top-level source |
| 7 | * directory or online at http://www.openafs.org/dl/license10.html |
| 8 | */ |
| 9 | |
| 10 | /* |
| 11 | * rx_kmutex.h - mutex and condition variable macros for kernel environment. |
| 12 | * |
| 13 | * User-space implementation. |
| 14 | */ |
| 15 | |
| 16 | #ifndef _RX_KMUTEX_H_ |
| 17 | #define _RX_KMUTEX_H_ |
| 18 | |
| 19 | #define RX_ENABLE_LOCKS 1 |
| 20 | |
| 21 | #define afs_kmutex_t usr_mutex_t |
| 22 | #define afs_kcondvar_t usr_cond_t |
| 23 | #define MUTEX_INIT(A,B,C,D) usr_mutex_init(A) |
| 24 | #define MUTEX_ENTER(A) usr_mutex_lock(A) |
| 25 | #define MUTEX_TRYENTER(A) usr_mutex_trylock(A) |
| 26 | #define MUTEX_EXIT(A) usr_mutex_unlock(A) |
| 27 | #define MUTEX_DESTROY(A) usr_mutex_destroy(A) |
| 28 | #define MUTEX_ASSERT(A) |
| 29 | #define CV_INIT(A,B,C,D) usr_cond_init(A) |
| 30 | #define CV_TIMEDWAIT(A,B,C) usr_cond_timedwait(A,B,C) |
| 31 | #define CV_SIGNAL(A) usr_cond_signal(A) |
| 32 | #define CV_BROADCAST(A) usr_cond_broadcast(A) |
| 33 | #define CV_DESTROY(A) usr_cond_destroy(A) |
| 34 | #define CV_WAIT(_cv, _lck) { \ |
| 35 | int isGlockOwner = ISAFS_GLOCK(); \ |
| 36 | if (isGlockOwner) { \ |
| 37 | AFS_GUNLOCK(); \ |
| 38 | } \ |
| 39 | usr_cond_wait(_cv, _lck); \ |
| 40 | if (isGlockOwner) { \ |
| 41 | MUTEX_EXIT(_lck); \ |
| 42 | AFS_GLOCK(); \ |
| 43 | MUTEX_ENTER(_lck); \ |
| 44 | } \ |
| 45 | } |
| 46 | |
| 47 | #define SPLVAR |
| 48 | #define NETPRI |
| 49 | #define USERPRI |
| 50 | |
| 51 | #endif /* _RX_KMUTEX_H_ */ |