service_runtime/nacl_sync_checked.c

   1 /*
   2  * Copyright 2008, Google Inc.
   3  * All rights reserved.
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions are
   7  * met:
   8  *
   9  *     * Redistributions of source code must retain the above copyright
  10  * notice, this list of conditions and the following disclaimer.
  11  *     * Redistributions in binary form must reproduce the above
  12  * copyright notice, this list of conditions and the following disclaimer
  13  * in the documentation and/or other materials provided with the
  14  * distribution.
  15  *     * Neither the name of Google Inc. nor the names of its
  16  * contributors may be used to endorse or promote products derived from
  17  * this software without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  20  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  21  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  22  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  23  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  25  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  26  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  27  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  28  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  30  */
  31
  32 /*
  33  * NaCl Server Runtime mutex and condition variable abstraction layer.
  34  * The NaClX* interfaces just invoke the no-X versions of the
  35  * synchronization routines, and aborts if there are any error
  36  * returns.
  37  */
  38
  39 #include "native_client/service_runtime/nacl_log.h"
  40 #include "native_client/service_runtime/nacl_sync_checked.h"
  41
  42 void NaClXMutexLock(struct NaClMutex *mp)
  43 {
  44   NaClSyncStatus  status;
  45
  46   if (NACL_SYNC_OK == (status = NaClMutexLock(mp))) {
  47     return;
  48   }
  49   NaClLog(LOG_FATAL, "NaClMutexLock returned %d\n", status);
  50 }
  51
  52 NaClSyncStatus NaClXMutexTryLock(struct NaClMutex *mp)
  53 {
  54   NaClSyncStatus  status;
  55
  56   if (NACL_SYNC_OK == (status = NaClMutexUnlock(mp)) ||
  57       NACL_SYNC_BUSY == status) {
  58     return status;
  59   }
  60   NaClLog(LOG_FATAL, "NaClMutexUnlock returned %d\n", status);
  61   /* NOTREACHED */
  62   return NACL_SYNC_INTERNAL_ERROR;
  63 }
  64
  65 void NaClXMutexUnlock(struct NaClMutex *mp) {
  66   NaClSyncStatus  status;
  67
  68   if (NACL_SYNC_OK == (status = NaClMutexUnlock(mp))) {
  69     return;
  70   }
  71   NaClLog(LOG_FATAL, "NaClMutexUnlock returned %d\n", status);
  72 }
  73
  74 void NaClXCondVarSignal(struct NaClCondVar *cvp)
  75 {
  76   NaClSyncStatus  status;
  77
  78   if (NACL_SYNC_OK == (status = NaClCondVarSignal(cvp))) {
  79     return;
  80   }
  81   NaClLog(LOG_FATAL, "NaClCondVarSignal returned %d\n", status);
  82 }
  83
  84 void NaClXCondVarBroadcast(struct NaClCondVar *cvp)
  85 {
  86   NaClSyncStatus  status;
  87
  88   if (NACL_SYNC_OK == (status = NaClCondVarBroadcast(cvp))) {
  89     return;
  90   }
  91   NaClLog(LOG_FATAL, "NaClCondVarBroadcast returned %d\n", status);
  92 }
  93
  94 void NaClXCondVarWait(struct NaClCondVar *cvp,
  95                       struct NaClMutex   *mp)
  96 {
  97   NaClSyncStatus  status;
  98
  99   if (NACL_SYNC_OK == (status = NaClCondVarWait(cvp, mp))) {
 100     return;
 101   }
 102   NaClLog(LOG_FATAL, "NaClCondVarWait returned %d\n", status);
 103 }
 104
 105 NaClSyncStatus NaClXCondVarTimedWaitAbsolute(
 106     struct NaClCondVar              *cvp,
 107     struct NaClMutex                *mp,
 108     struct nacl_abi_timespec const  *abstime)
 109 {
 110   NaClSyncStatus  status = NaClCondVarTimedWaitAbsolute(cvp, mp, abstime);
 111
 112   if (NACL_SYNC_OK == status || NACL_SYNC_CONDVAR_TIMEDOUT == status) {
 113     return status;
 114   }
 115   NaClLog(LOG_FATAL, "NaClCondVarTimedWait returned %d\n", status);
 116   /* NOTREACHED */
 117   return NACL_SYNC_INTERNAL_ERROR;
 118 }
 119
 120 NaClSyncStatus NaClXCondVarTimedWaitRelative(
 121     struct NaClCondVar              *cvp,
 122     struct NaClMutex                *mp,
 123     struct nacl_abi_timespec const  *reltime)
 124 {
 125   NaClSyncStatus  status = NaClCondVarTimedWaitAbsolute(cvp, mp, reltime);
 126
 127   if (NACL_SYNC_OK == status || NACL_SYNC_CONDVAR_TIMEDOUT == status) {
 128       return status;
 129   }
 130   NaClLog(LOG_FATAL, "NaClCondVarTimedWait returned %d\n", status);
 131   /* NOTREACHED */
 132   return NACL_SYNC_INTERNAL_ERROR;
 133 }