src/rx/UKERNEL/rx_kmutex.h

   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 AFS_GLOBAL_RXLOCK_KERNEL
  20 #define RX_ENABLE_LOCKS         1
  21
  22 #define afs_kmutex_t            usr_mutex_t
  23 #define afs_krwlock_t           usr_mutex_t
  24 #define afs_kcondvar_t          usr_cond_t
  25 #define RWLOCK_INIT(a, b, c, d) usr_mutex_init(a)
  26 #define RWLOCK_DESTROY(l)       usr_mutex_destroy(l)
  27 #define RWLOCK_UPLOCK(l)
  28 #define RWLOCK_WRLOCK(l)        usr_mutex_lock(l)
  29 #define RWLOCK_RDLOCK(l)        usr_mutex_lock(l)
  30 #define RWLOCK_TRYWRLOCK(l)     usr_mutex_trylock(l)
  31 #define RWLOCK_TRYRDLOCK(l)     usr_mutex_trylock(l)
  32 #define RWLOCK_UNLOCK(l)        usr_mutex_unlock(l)
  33 #define MUTEX_INIT(A,B,C,D)     usr_mutex_init(A)
  34 #define MUTEX_ENTER(A)          usr_mutex_lock(A)
  35 #define MUTEX_TRYENTER(A)       usr_mutex_trylock(A)
  36 #define MUTEX_ISMINE(A)         (1)
  37 #define MUTEX_EXIT(A)           usr_mutex_unlock(A)
  38 #define MUTEX_DESTROY(A)        usr_mutex_destroy(A)
  39 #define CV_INIT(A,B,C,D)        usr_cond_init(A)
  40 #define CV_TIMEDWAIT(A,B,C)     usr_cond_timedwait(A,B,C)
  41 #define CV_SIGNAL(A)            usr_cond_signal(A)
  42 #define CV_BROADCAST(A)         usr_cond_broadcast(A)
  43 #define CV_DESTROY(A)           usr_cond_destroy(A)
  44 #define CV_WAIT(_cv, _lck)      { \
  45                                     int isGlockOwner = ISAFS_GLOCK(); \
  46                                     if (isGlockOwner) { \
  47                                         AFS_GUNLOCK(); \
  48                                     } \
  49                                     usr_cond_wait(_cv, _lck); \
  50                                     if (isGlockOwner) { \
  51                                         MUTEX_EXIT(_lck); \
  52                                         AFS_GLOCK(); \
  53                                         MUTEX_ENTER(_lck); \
  54                                     } \
  55                                 }
  56
  57 #ifndef UKERNEL
  58 extern void osirx_AssertMine(afs_kmutex_t * lockaddr, char *msg);
  59 #endif
  60
  61 #define SPLVAR
  62 #define NETPRI
  63 #define USERPRI
  64
  65 #endif /* _RX_KMUTEX_H_ */