src/rx/SOLARIS/rx_kmutex.c

   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.c - mutex and condition variable macros for kernel environment.
  12  *
  13  * Solaris implementation.
  14  */
  15
  16 #include <afsconfig.h>
  17 #include "afs/param.h"
  18
  19
  20 #if defined(AFS_SUN5_ENV) && defined(KERNEL)
  21
  22 #include "rx/rx_kcommon.h"
  23 #include "rx_kmutex.h"
  24 #include "rx/rx_kernel.h"
  25
  26 #include <errno.h>
  27 #include <sys/tiuser.h>
  28 #include <sys/t_lock.h>
  29 #include <sys/mutex.h>
  30
  31 #ifdef RX_LOCKS_DB
  32 int
  33 afs_cv_wait(cv, m, sigok, fileid, line)
  34      int fileid;
  35      int line;
  36 #else
  37 int
  38 afs_cv_wait(cv, m, sigok)
  39 #endif
  40      afs_kcondvar_t *cv;
  41      afs_kmutex_t *m;
  42      int sigok;
  43 {
  44     int haveGlock = ISAFS_GLOCK();
  45     int retval = 0;
  46
  47     if (haveGlock)
  48         AFS_GUNLOCK();
  49 #ifdef RX_LOCKS_DB
  50     rxdb_droplock(m, osi_ThreadUnique(), fileid, line);
  51 #endif
  52     if (sigok) {
  53         if (cv_wait_sig(cv, m) == 0)
  54             retval = EINTR;
  55     } else {
  56         cv_wait(cv, m);
  57     }
  58 #ifdef RX_LOCKS_DB
  59     rxdb_grablock(m, osi_ThreadUnique(), fileid, line);
  60 #endif
  61     if (haveGlock) {
  62         MUTEX_EXIT(m);
  63         AFS_GLOCK();
  64         MUTEX_ENTER(m);
  65     }
  66     return retval;
  67 }
  68
  69 #ifdef RX_LOCKS_DB
  70 int
  71 afs_cv_timedwait(cv, m, t, sigok, fileid, line)
  72      int fileid;
  73      int line;
  74 #else
  75 int
  76 afs_cv_timedwait(cv, m, t, sigok)
  77 #endif
  78      afs_kcondvar_t *cv;
  79      afs_kmutex_t *m;
  80      clock_t t;
  81      int sigok;
  82 {
  83     int haveGlock = ISAFS_GLOCK();
  84     int retval = 0;
  85
  86     if (haveGlock)
  87         AFS_GUNLOCK();
  88 #ifdef RX_LOCKS_DB
  89     rxdb_droplock(m, osi_ThreadUnique(), fileid, line);
  90 #endif
  91     if (sigok) {
  92         if (cv_timedwait_sig(cv, m, t) == 0)
  93             retval = EINTR;
  94     } else {
  95         cv_timedwait(cv, m, t);
  96     }
  97 #ifdef RX_LOCKS_DB
  98     rxdb_grablock(m, osi_ThreadUnique(), fileid, line);
  99 #endif
 100     if (haveGlock) {
 101         MUTEX_EXIT(m);
 102         AFS_GLOCK();
 103         MUTEX_ENTER(m);
 104     }
 105     return retval;
 106 }
 107
 108 #endif /* SUN5 && KERNEL */