diff options
Diffstat (limited to 'libparc/parc/algol/parc_AtomicInteger.c')
-rwxr-xr-x | libparc/parc/algol/parc_AtomicInteger.c | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/libparc/parc/algol/parc_AtomicInteger.c b/libparc/parc/algol/parc_AtomicInteger.c deleted file mode 100755 index b32a698f..00000000 --- a/libparc/parc/algol/parc_AtomicInteger.c +++ /dev/null @@ -1,94 +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 <pthread.h> - -#include <parc/algol/parc_AtomicInteger.h> - -#ifdef USE_GCC_EXTENSIONS -uint32_t -parcAtomicInteger_Uint32IncrementGCC(uint32_t *value) -{ - return __sync_add_and_fetch(value, 1); -} - -uint32_t -parcAtomicInteger_Uint32DecrementGCC(uint32_t *value) -{ - return __sync_sub_and_fetch(value, 1); -} - -uint64_t -parcAtomicInteger_Uint64IncrementGCC(uint64_t *value) -{ - return __sync_add_and_fetch(value, 1); -} - -uint64_t -parcAtomicInteger_Uint64DecrementGCC(uint64_t *value) -{ - return __sync_sub_and_fetch(value, 1); -} -#endif - - -// Since there is no per integer mutex, we must use something to protect an integer from multiple, -// simultaneous competitors. -// Unfortunately, this is an indiscrimiate mutex causing all atomic integer updates to be -// serialized rather than each individually protected. -static pthread_mutex_t _parcAtomicInteger_PthreadMutex = PTHREAD_MUTEX_INITIALIZER; - -uint32_t -parcAtomicInteger_Uint32IncrementPthread(uint32_t *value) -{ - pthread_mutex_lock(&_parcAtomicInteger_PthreadMutex); - *value = *value + 1; - uint32_t result = *value; - pthread_mutex_unlock(&_parcAtomicInteger_PthreadMutex); - return result; -} - -uint32_t -parcAtomicInteger_Uint32DecrementPthread(uint32_t *value) -{ - pthread_mutex_lock(&_parcAtomicInteger_PthreadMutex); - *value = *value - 1; - uint32_t result = *value; - pthread_mutex_unlock(&_parcAtomicInteger_PthreadMutex); - return result; -} - -uint64_t -parcAtomicInteger_Uint64IncrementPthread(uint64_t *value) -{ - pthread_mutex_lock(&_parcAtomicInteger_PthreadMutex); - *value = *value + 1; - uint64_t result = *value; - pthread_mutex_unlock(&_parcAtomicInteger_PthreadMutex); - return result; -} - -uint64_t -parcAtomicInteger_Uint64DecrementPthread(uint64_t *value) -{ - pthread_mutex_lock(&_parcAtomicInteger_PthreadMutex); - *value = *value - 1; - uint64_t result = *value; - pthread_mutex_unlock(&_parcAtomicInteger_PthreadMutex); - return result; -} |