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1  /*!
2   * \copy
3   *     Copyright (c)  2009-2013, Cisco Systems
4   *     All rights reserved.
5   *
6   *     Redistribution and use in source and binary forms, with or without
7   *     modification, are permitted provided that the following conditions
8   *     are met:
9   *
10   *        * Redistributions of source code must retain the above copyright
11   *          notice, this list of conditions and the following disclaimer.
12   *
13   *        * Redistributions in binary form must reproduce the above copyright
14   *          notice, this list of conditions and the following disclaimer in
15   *          the documentation and/or other materials provided with the
16   *          distribution.
17   *
18   *     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19   *     "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20   *     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21   *     FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
22   *     COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23   *     INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
24   *     BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25   *     LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
26   *     CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27   *     LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
28   *     ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
29   *     POSSIBILITY OF SUCH DAMAGE.
30   *
31   *
32   * \file    WelsThreadLib.h
33   *
34   * \brief   Interfaces introduced in thread programming
35   *
36   * \date    11/17/2009 Created
37   *
38   *************************************************************************************
39   */
40  
41  #ifndef   _WELS_THREAD_API_H_
42  #define   _WELS_THREAD_API_H_
43  
44  #include "typedefs.h"
45  
46  #ifdef  __cplusplus
47  extern "C" {
48  #endif
49  
50  #if defined(_WIN32) || defined(__CYGWIN__)
51  
52  #include <windows.h>
53  
54  typedef    HANDLE                    WELS_THREAD_HANDLE;
55  typedef    LPTHREAD_START_ROUTINE    LPWELS_THREAD_ROUTINE;
56  
57  typedef    CRITICAL_SECTION          WELS_MUTEX;
58  typedef    HANDLE                    WELS_EVENT;
59  
60  #define    WELS_THREAD_ROUTINE_TYPE         DWORD  WINAPI
61  #define    WELS_THREAD_ROUTINE_RETURN(rc)   return (DWORD)rc;
62  
63  #ifdef WINAPI_FAMILY
64  #if !WINAPI_FAMILY_PARTITION(WINAPI_PARTITION_DESKTOP)
65  #define WP80
66  
67  #define InitializeCriticalSection(x) InitializeCriticalSectionEx(x, 0, 0)
68  #define GetSystemInfo(x) GetNativeSystemInfo(x)
69  #define CreateEvent(attr, reset, init, name) CreateEventEx(attr, name, ((reset) ? CREATE_EVENT_MANUAL_RESET : 0) | ((init) ? CREATE_EVENT_INITIAL_SET : 0), EVENT_ALL_ACCESS)
70  #define CreateSemaphore(a, b, c, d) CreateSemaphoreEx(a, b, c, d, 0, SEMAPHORE_ALL_ACCESS)
71  #define WaitForSingleObject(a, b) WaitForSingleObjectEx(a, b, FALSE)
72  #define WaitForMultipleObjects(a, b, c, d) WaitForMultipleObjectsEx(a, b, c, d, FALSE)
73  #endif
74  #endif
75  
76  #else // NON-WINDOWS
77  
78  #include <stdlib.h>
79  #include <unistd.h>
80  #include <string.h>
81  #include <pthread.h>
82  #include <semaphore.h>
83  #include <signal.h>
84  #include <errno.h>
85  #include <time.h>
86  #include <sys/time.h>
87  
88  #include <sys/stat.h>
89  #include <fcntl.h>
90  
91  typedef   pthread_t    WELS_THREAD_HANDLE;
92  typedef  void* (*LPWELS_THREAD_ROUTINE) (void*);
93  
94  typedef   pthread_mutex_t           WELS_MUTEX;
95  
96  #ifdef __APPLE__
97  typedef   pthread_cond_t            WELS_EVENT;
98  #else
99  typedef   sem_t*                    WELS_EVENT;
100  #endif
101  
102  #define   WELS_THREAD_ROUTINE_TYPE         void *
103  #define   WELS_THREAD_ROUTINE_RETURN(rc)   return (void*)(intptr_t)rc;
104  
105  #endif//_WIN32
106  
107  typedef    int32_t        WELS_THREAD_ERROR_CODE;
108  typedef    int32_t        WELS_THREAD_ATTR;
109  
110  typedef  struct _WelsLogicalProcessorInfo {
111    int32_t    ProcessorCount;
112  } WelsLogicalProcessInfo;
113  
114  #define    WELS_THREAD_ERROR_OK                                 0
115  #define    WELS_THREAD_ERROR_GENERAL                    ((uint32_t)(-1))
116  #define    WELS_THREAD_ERROR_WAIT_OBJECT_0              0
117  #define    WELS_THREAD_ERROR_WAIT_TIMEOUT               ((uint32_t)0x00000102L)
118  #define    WELS_THREAD_ERROR_WAIT_FAILED                WELS_THREAD_ERROR_GENERAL
119  
120  WELS_THREAD_ERROR_CODE    WelsMutexInit (WELS_MUTEX*    mutex);
121  WELS_THREAD_ERROR_CODE    WelsMutexLock (WELS_MUTEX*    mutex);
122  WELS_THREAD_ERROR_CODE    WelsMutexUnlock (WELS_MUTEX* mutex);
123  WELS_THREAD_ERROR_CODE    WelsMutexDestroy (WELS_MUTEX* mutex);
124  
125  WELS_THREAD_ERROR_CODE    WelsEventOpen (WELS_EVENT* p_event, const char* event_name = NULL);
126  WELS_THREAD_ERROR_CODE    WelsEventClose (WELS_EVENT* event, const char* event_name = NULL);
127  
128  WELS_THREAD_ERROR_CODE    WelsEventSignal (WELS_EVENT* event,WELS_MUTEX *pMutex, int* iCondition);
129  WELS_THREAD_ERROR_CODE    WelsEventWait (WELS_EVENT* event,WELS_MUTEX *pMutex, int& iCondition);
130  WELS_THREAD_ERROR_CODE    WelsEventWaitWithTimeOut (WELS_EVENT* event, uint32_t dwMilliseconds,WELS_MUTEX *pMutex = NULL);
131  WELS_THREAD_ERROR_CODE    WelsMultipleEventsWaitSingleBlocking (uint32_t nCount, WELS_EVENT* event_list,
132      WELS_EVENT* master_event = NULL,WELS_MUTEX *pMutex = NULL);
133  
134  WELS_THREAD_ERROR_CODE    WelsThreadCreate (WELS_THREAD_HANDLE* thread,  LPWELS_THREAD_ROUTINE  routine,
135      void* arg, WELS_THREAD_ATTR attr);
136  
137  WELS_THREAD_ERROR_CODE    WelsThreadSetName (const char* thread_name);
138  
139  WELS_THREAD_ERROR_CODE    WelsThreadJoin (WELS_THREAD_HANDLE  thread);
140  
141  WELS_THREAD_HANDLE        WelsThreadSelf();
142  
143  WELS_THREAD_ERROR_CODE    WelsQueryLogicalProcessInfo (WelsLogicalProcessInfo* pInfo);
144  
145  void WelsSleep (uint32_t dwMilliSecond);
146  
147  #ifdef  __cplusplus
148  }
149  #endif
150  
151  #endif
152