service_runtime/nacl_semaphore.h

   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 semaphore cross-platform abstraction
  34  */
  35 #ifndef NATIVE_CLIENT_SERVICE_RUNTIME_NACL_SEMAPHORE_H
  36 #define NATIVE_CLIENT_SERVICE_RUNTIME_NACL_SEMAPHORE_H
  37
  38 #if NACL_WINDOWS
  39 #include "native_client/service_runtime/win/nacl_semaphore.h"
  40 #elif NACL_LINUX
  41 #include "native_client/service_runtime/linux/nacl_semaphore.h"
  42 #elif NACL_OSX
  43 #include "native_client/service_runtime/osx/nacl_semaphore.h"
  44 #else
  45 #error "Unknown platform!!!"
  46 #endif
  47
  48 int NaClSemCtor(struct NaClSemaphore *sem, int32_t value);
  49
  50 void NaClSemDtor(struct NaClSemaphore *sem);
  51
  52 NaClSyncStatus NaClSemWait(struct NaClSemaphore *sem);
  53
  54 NaClSyncStatus NaClSemTryWait(struct NaClSemaphore *sem);
  55
  56 NaClSyncStatus NaClSemPost(struct NaClSemaphore *sem);
  57
  58 int NaClSemGetValue(struct NaClSemaphore *sem);
  59
  60 #endif  /* NATIVE_CLIENT_SERVICE_RUNTIME_NACL_SEMAPHORE_H */