1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*********************************************************
* Copyright (C) 1998 VMware, Inc. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published
* by the Free Software Foundation version 2.1 and no later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the Lesser GNU General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
*********************************************************/
/*
* syncMutex.h --
*
* Implements a platform independent mutex
*/
#ifndef _SYNC_MUTEX_H_
#define _SYNC_MUTEX_H_
#define INCLUDE_ALLOW_USERLEVEL
#define INCLUDE_ALLOW_VMCORE
#include "includeCheck.h"
#if !defined(_WIN32)
#if defined(N_PLAT_NLM)
#include <nwerrno.h>
#include <nwadv.h>
#include <nwthread.h>
#include <nwsemaph.h>
#else
#include <pthread.h>
#endif
#endif
#include "syncWaitQ.h"
#include "vm_atomic.h"
/*
* SyncMutex --
*/
typedef struct SyncMutex {
#if defined(N_PLAT_NLM)
LONG semaphoreHandle;
#else
SyncWaitQ wq;
/* Is the mutex unlocked? --hpreg */
Atomic_uint32 unlocked;
#if !defined(_WIN32)
pthread_mutex_t _mutex;
#endif
#endif
} SyncMutex;
Bool SyncMutex_Init(SyncMutex *that,
char const *path);
void SyncMutex_Destroy(SyncMutex *that);
Bool SyncMutex_Lock(SyncMutex *that);
Bool SyncMutex_Unlock(SyncMutex *that);
#if !defined(N_PLAT_NLM)
Bool SyncMutex_Trylock(SyncMutex *that);
#endif
SyncMutex *SyncMutex_CreateSingleton(Atomic_Ptr *lckStorage);
#endif // #ifndef _SYNC_MUTEX_H_
|
