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SbMutex.h
1 #ifndef COIN_SBMUTEX_H
2 #define COIN_SBMUTEX_H
3 
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26 
27 #include <Inventor/SbBasic.h>
28 #include <Inventor/C/threads/mutex.h>
29 
30 class SbMutex {
31 public:
32  SbMutex(void) { this->mutex = cc_mutex_construct(); }
33  ~SbMutex(void) { cc_mutex_destruct(this->mutex); }
34 
35  int lock(void) {
36  return cc_mutex_lock(this->mutex) == CC_OK ? 0 : 1;
37  }
38  SbBool tryLock(void) {
39  return cc_mutex_try_lock(this->mutex) == CC_OK;
40  }
41  int unlock(void) {
42  return cc_mutex_unlock(this->mutex) == CC_OK ? 0 : 1;
43  }
44 
45 private:
46  // FIXME: we need access to C mutex structur. Should we use friend,
47  // or should we add a new public method to get to this structure?
48  // pederb, 2002-06-26
49  friend class SbCondVar;
50  cc_mutex * mutex;
51 };
52 
53 
54 #ifndef COIN_INTERNAL
55 // For TGS Inventor compile-time compatibility.
56 #include <Inventor/threads/SbThreadAutoLock.h>
57 #endif // COIN_INTERNAL
58 
59 #endif // !COIN_SBMUTEX_H
A basic class for managing a mutex.This class provides a portable framework around the mutex interfac...
Definition: SbMutex.h:30
SbBool tryLock(void)
Definition: SbMutex.h:38
int unlock(void)
Definition: SbMutex.h:41
int lock(void)
Definition: SbMutex.h:35
A class for synchronizing access to global variables.Condition variables are used to protect global v...
Definition: SbCondVar.h:32
SbMutex(void)
Definition: SbMutex.h:32
~SbMutex(void)
Definition: SbMutex.h:33

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