diff options
Diffstat (limited to 'libparc/parc/concurrent/parc_Synchronizer.c')
-rwxr-xr-x | libparc/parc/concurrent/parc_Synchronizer.c | 146 |
1 files changed, 0 insertions, 146 deletions
diff --git a/libparc/parc/concurrent/parc_Synchronizer.c b/libparc/parc/concurrent/parc_Synchronizer.c deleted file mode 100755 index ab331442..00000000 --- a/libparc/parc/concurrent/parc_Synchronizer.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Copyright (c) 2017 Cisco and/or its affiliates. - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -/** - */ -#include <config.h> - -#include <parc/algol/parc_Object.h> -#include <parc/algol/parc_DisplayIndented.h> - -#include <parc/concurrent/parc_Synchronizer.h> - -#ifdef PARCLibrary_DISABLE_ATOMICS -# include <pthread.h> -#else -//# include <pthread.h> -#endif - -typedef enum { - _PARCSynchronizer_Unlocked = 0, - _PARCSynchronizer_Locked = 1 -} _PARCSynchronizer; - -struct PARCSynchronizer { -#ifdef PARCLibrary_DISABLE_ATOMICS - pthread_mutex_t mutex; -#else - int mutex; -#endif -}; - -static void -_parcSynchronizer_Finalize(PARCSynchronizer **instancePtr) -{ - parcAssertNotNull(instancePtr, "Parameter must be a non-null pointer to a PARCSynchronizer pointer."); - - parcSynchronizer_OptionalAssertValid((*instancePtr)); -} - -parcObject_ImplementAcquire(parcSynchronizer, PARCSynchronizer); - -parcObject_ImplementRelease(parcSynchronizer, PARCSynchronizer); - -parcObject_ExtendPARCObject(PARCSynchronizer, _parcSynchronizer_Finalize, NULL, NULL, NULL, NULL, NULL, NULL); - -void -parcSynchronizer_AssertValid(const PARCSynchronizer *instance) -{ - parcAssertTrue(parcSynchronizer_IsValid(instance), - "PARCSynchronizer is not valid."); -} - -PARCSynchronizer * -parcSynchronizer_Create(void) -{ - PARCSynchronizer *result = parcObject_CreateInstance(PARCSynchronizer); - -#ifdef PARCLibrary_DISABLE_ATOMICS - pthread_mutex_init(&result->mutex, NULL); -#else - result->mutex = _PARCSynchronizer_Unlocked; -#endif - - return result; -} - -void -parcSynchronizer_Display(const PARCSynchronizer *instance, int indentation) -{ - parcDisplayIndented_PrintLine(indentation, "PARCSynchronizer@%p {", instance); - /* Call Display() functions for the fields here. */ - parcDisplayIndented_PrintLine(indentation, "}"); -} - -bool -parcSynchronizer_IsValid(const PARCSynchronizer *instance) -{ - bool result = false; - - if (instance != NULL) { - result = true; - } - - return result; -} - -bool -parcSynchronizer_TryLock(PARCSynchronizer *instance) -{ -#ifdef PARCLibrary_DISABLE_ATOMICS - bool result = pthread_mutex_trylock(&instance->mutex) == 0; -#else - bool result = __sync_bool_compare_and_swap(&instance->mutex, _PARCSynchronizer_Unlocked, _PARCSynchronizer_Locked); -#endif - return result; -} - -void -parcSynchronizer_Lock(PARCSynchronizer *instance) -{ -#ifdef PARCLibrary_DISABLE_ATOMICS - pthread_mutex_lock(&instance->mutex); -#else - while (!__sync_bool_compare_and_swap(&instance->mutex, _PARCSynchronizer_Unlocked, _PARCSynchronizer_Locked)) { - ; - } -#endif -} - -void -parcSynchronizer_Unlock(PARCSynchronizer *instance) -{ -#ifdef PARCLibrary_DISABLE_ATOMICS - pthread_mutex_unlock(&instance->mutex); -#else - while (!__sync_bool_compare_and_swap(&instance->mutex, _PARCSynchronizer_Locked, _PARCSynchronizer_Unlocked)) { - ; - } -#endif -} - -bool -parcSynchronizer_IsLocked(const PARCSynchronizer *barrier) -{ -#ifdef PARCLibrary_DISABLE_ATOMICS - PARCSynchronizer *instance = (PARCSynchronizer *) barrier; - - bool result = pthread_mutex_trylock(&instance->mutex) != 0; - pthread_mutex_unlock(&instance->mutex); - return result; -#else - return barrier->mutex == _PARCSynchronizer_Locked; -#endif -} |