Coin: SbRWMutex.h Source File

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SbRWMutex.h
1#ifndef COIN_SBRWMUTEX_H
2#define COIN_SBRWMUTEX_H
3
4/**************************************************************************\
5 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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34\**************************************************************************/
35
36#include <Inventor/C/threads/rwmutex.h>
37
38 class SbRWMutex {
39public:
40 enum Precedence {
41 READ_PRECEDENCE,
42 WRITE_PRECEDENCE
43 };
44
45 SbRWMutex(Precedence policy) {
46 this->rwmutex = cc_rwmutex_construct_etc(
47 (policy == WRITE_PRECEDENCE)? CC_WRITE_PRECEDENCE : CC_READ_PRECEDENCE);
48 }
49 ~SbRWMutex(void) { cc_rwmutex_destruct(this->rwmutex); }
50
51 int writeLock(void) {
52 return cc_rwmutex_write_lock(this->rwmutex) == CC_OK ? 0 : 1;
53 }
54 SbBool tryWriteLock(void) {
55 return cc_rwmutex_write_try_lock(this->rwmutex) == CC_OK;
56 }
57 int writeUnlock(void) {
58 return cc_rwmutex_write_unlock(this->rwmutex) == CC_OK ? 0 : 1;
59 }
60
61 int readLock(void) {
62 return cc_rwmutex_read_lock(this->rwmutex) == CC_OK ? 0 : 1;
63 }
64 int tryReadLock(void) {
65 return cc_rwmutex_read_try_lock(this->rwmutex) == CC_OK;
66 }
67 int readUnlock(void) {
68 return cc_rwmutex_read_unlock(this->rwmutex) == CC_OK ? 0 : 1;
69 }
70
71private:
72 cc_rwmutex * rwmutex;
73};
74
75#endif // !COIN_SBRWMUTEX_H