remove share_mutex.c, goes into mutex.c to be consistent with headers

base_c/src/shared_mutex.c

-/*
- * Copyright (c) 2014-2015, Siemens AG. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- *
- * 1. Redistributions of source code must retain the above copyright notice,
- * this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright notice,
- * this list of conditions and the following disclaimer in the documentation
- * and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-
-#include <embb/base/c/mutex.h>
-#include <assert.h>
-
-#include <embb/base/c/internal/unused.h>
-
-#ifdef EMBB_PLATFORM_THREADING_WINTHREADS
-
-int embb_shared_mutex_init(embb_shared_mutex_t* shared_mutex) {
-  InitializeSRWLock(shared_mutex);
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_lock(embb_shared_mutex_t* shared_mutex) {
-  AcquireSRWLockExclusive(shared_mutex);
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_try_lock(embb_shared_mutex_t* shared_mutex) {
-  BOOLEAN success;
-  success = TryAcquireSRWLockExclusive(shared_mutex);
-  if (success == FALSE) return EMBB_ERROR;
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_unlock(embb_shared_mutex_t* shared_mutex) {
-  ReleaseSRWLockExclusive(shared_mutex);
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_lock_shared(embb_shared_mutex_t* shared_mutex) {
-  AcquireSRWLockShared(shared_mutex);
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_try_lock_shared(embb_shared_mutex_t* shared_mutex) {
-  BOOLEAN success;
-  success = TryAcquireSRWLockShared(shared_mutex);
-  if (success == FALSE) return EMBB_ERROR;
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_unlock_shared(embb_shared_mutex_t* shared_mutex) {
-  ReleaseSRWLockShared(shared_mutex);
-  return EMBB_SUCCESS;
-}
-
-void embb_shared_mutex_destroy(embb_shared_mutex_t* shared_mutex) {
-  // Quoting MSDN: "SRW locks do not need to be explicitly destroyed".
-  EMBB_UNUSED(shared_mutex);
-}
-
-#endif /* EMBB_PLATFORM_THREADING_WINTHREADS */
-
-#ifdef EMBB_PLATFORM_THREADING_POSIXTHREADS
-
-int embb_shared_mutex_init(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_init(shared_mutex, NULL);
-  if (result != 0) {
-    return EMBB_ERROR;
-  }
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_lock(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_wrlock(shared_mutex);
-  if (result != 0) {
-    return EMBB_ERROR;
-  }
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_try_lock(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_trywrlock(shared_mutex);
-  if (result == 0) {
-    return EMBB_SUCCESS;
-  }
-  if (result == EBUSY) {
-    return EMBB_BUSY;
-  }
-  return EMBB_ERROR;
-}
-
-int embb_shared_mutex_unlock(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_unlock(shared_mutex);
-  if (result != 0) {
-    return EMBB_ERROR;
-  }
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_lock_shared(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_rdlock(shared_mutex);
-  if (result != 0) {
-    return EMBB_ERROR;
-  }
-  return EMBB_SUCCESS;
-}
-
-int embb_shared_mutex_try_lock_shared(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_tryrdlock(shared_mutex);
-  if (result == 0) {
-    return EMBB_SUCCESS;
-  }
-  if (result == EBUSY) {
-    return EMBB_BUSY;
-  }
-  return EMBB_ERROR;
-}
-
-int embb_shared_mutex_unlock_shared(embb_shared_mutex_t* shared_mutex) {
-  int result = pthread_rwlock_unlock(shared_mutex);
-  if (result != 0) {
-    return EMBB_ERROR;
-  }
-  return EMBB_SUCCESS;
-}
-
-void embb_shared_mutex_destroy(embb_shared_mutex_t* shared_mutex) {
-  pthread_rwlock_destroy(shared_mutex);
-}
-
-#endif /* EMBB_PLATFORM_THREADING_POSIXTHREADS */