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/*
* 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.
*/
/**
* @file parc_AtomicInteger.h
* @ingroup threading
* @brief An integer value that may be updated automatically.
*
*/
#ifndef libparc_parc_AtomicInteger_h
#define libparc_parc_AtomicInteger_h
#include <stdint.h>
/*
* If we are compiling with GCC or Clang, then
* we have some compiler extensions to make use of processer
* compare-and-swap and other kinds of synchronisation primitives.
*/
#if defined(__GNUC__) || defined(__clang__)
# define USE_GCC_EXTENSIONS 1
#endif
// Turn this off until the problem on the SMP machines is worked out, case 787.
#undef USE_GCC_EXTENSIONS
#ifdef USE_GCC_EXTENSIONS
uint32_t parcAtomicInteger_Uint32IncrementGCC(uint32_t *value);
uint32_t parcAtomicInteger_Uint32DecrementGCC(uint32_t *value);
uint64_t parcAtomicInteger_Uint64IncrementGCC(uint64_t *value);
uint64_t parcAtomicInteger_Uint64DecrementGCC(uint64_t *value);
#define parcAtomicInteger_Uint32Increment parcAtomicInteger_Uint32IncrementGCC
#define parcAtomicInteger_Uint32Decrement parcAtomicInteger_Uint32DecrementGCC
#define parcAtomicInteger_Uint64Increment parcAtomicInteger_Uint64IncrementGCC
#define parcAtomicInteger_Uint64Decrement parcAtomicInteger_Uint64DecrementGCC
#else
uint32_t parcAtomicInteger_Uint32IncrementPthread(uint32_t *value);
uint32_t parcAtomicInteger_Uint32DecrementPthread(uint32_t *value);
uint64_t parcAtomicInteger_Uint64IncrementPthread(uint64_t *value);
uint64_t parcAtomicInteger_Uint64DecrementPthread(uint64_t *value);
#define parcAtomicInteger_Uint32Increment parcAtomicInteger_Uint32IncrementPthread
#define parcAtomicInteger_Uint32Decrement parcAtomicInteger_Uint32DecrementPthread
#define parcAtomicInteger_Uint64Increment parcAtomicInteger_Uint64IncrementPthread
#define parcAtomicInteger_Uint64Decrement parcAtomicInteger_Uint64DecrementPthread
#endif
#endif // libparc_parc_AtomicInteger_h
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