1/*---------------------------------------------------------------------------* 2 * pmutex.h * 3 * * 4 * Copyright 2007, 2008 Nuance Communciations, Inc. * 5 * * 6 * Licensed under the Apache License, Version 2.0 (the 'License'); * 7 * you may not use this file except in compliance with the License. * 8 * * 9 * You may obtain a copy of the License at * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, software * 13 * distributed under the License is distributed on an 'AS IS' BASIS, * 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 15 * See the License for the specific language governing permissions and * 16 * limitations under the License. * 17 * * 18 *---------------------------------------------------------------------------*/ 19 20#ifndef __PMUTEX_H 21#define __PMUTEX_H 22 23#if defined(__vxworks) && !defined(REAL_PTHREADS) 24#undef USE_THREAD 25#define USE_THREAD 26#undef POSIX 27#define POSIX 28#endif 29 30 31 32#include "ESR_ReturnCode.h" 33 34#define SECOND2NSECOND 1000000000 35#define SECOND2MSECOND 1000 36#define MSECOND2NSECOND 1000000 37 38#ifdef USE_THREAD 39 40#ifdef _WIN32 41 42#ifndef WIN32_LEAN_AND_MEAN 43#define WIN32_LEAN_AND_MEAN 44#endif 45#include "windows.h" 46 47typedef HANDLE MUTEX; 48typedef HANDLE EVENT; 49 50#define createMutex(mutex, locked) \ 51 (*mutex = CreateMutex(NULL, locked, NULL)) == 0 ? ESR_MUTEX_CREATION_ERROR : ESR_SUCCESS 52 53#define lockMutex(mutex) waitForHandle(mutex, INFINITE) 54#define unlockMutex(mutex) (ReleaseMutex(*mutex) ? ESR_SUCCESS : ESR_FATAL_ERROR) 55#define deleteMutex(mutex) ((void) CloseHandle(*mutex)) 56ESR_ReturnCode waitForHandle(HANDLE* handle, asr_uint32_t timeout); 57 58#elif defined(POSIX) 59 60#if defined(__vxworks) && !defined(REAL_PTHREADS) 61#include "pthread_vx.h" 62#else 63#include <pthread.h> 64 65#ifndef _POSIX_THREADS 66#error "Thread is not defined!" 67#endif 68#endif /* _VX_WORKS_ */ 69 70typedef pthread_mutex_t MUTEX; 71typedef pthread_cond_t EVENT; 72 73ESR_ReturnCode createMutex_posix(MUTEX *mutex, ESR_BOOL locked); 74ESR_ReturnCode deleteMutex_posix(MUTEX *mutex); 75 76#define createMutex(mutex, locked) createMutex_posix(mutex, locked) 77#define deleteMutex(mutex) deleteMutex_posix(mutex) 78#define lockMutex(mutex) (pthread_mutex_lock(mutex) == 0 ? ESR_SUCCESS : ESR_FATAL_ERROR) 79#define unlockMutex(mutex) (pthread_mutex_unlock(mutex) == 0 ? ESR_SUCCESS : ESR_FATAL_ERROR) 80 81#else /* NON_POSIX */ 82 83#error Portable Synchronization not defined for this OS! 84 85#endif /* _WIN32 */ 86 87#else /* USE_THREAD */ 88 89#define createMutex(mutex, locked) (ESR_SUCCESS) 90#define deleteMutex(mutex) 91#define lockMutex(mutex) ((void) 0) 92#define unlockMutex(mutex) ((void) 0) 93 94#endif /* USE_THREAD */ 95 96#endif 97