version 1.4.2.6, 2006/07/30 22:57:19
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version 1.4.2.7, 2006/07/30 23:11:55
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#if defined(PEGASUS_HAVE_PTHREADS) | #if defined(PEGASUS_HAVE_PTHREADS) |
typedef pthread_mutex_t MutexType; | typedef pthread_mutex_t MutexType; |
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inline void mutex_lock(MutexType* mutex) { pthread_mutex_lock(mutex); } |
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inline void mutex_unlock(MutexType* mutex) { pthread_mutex_unlock(mutex); } |
struct MutexRep | struct MutexRep |
{ | { |
MutexType mutex; |
pthread_mutex_t mutex; |
}; | }; |
inline void mutex_lock(MutexType* mutex) { pthread_mutex_lock(mutex); } |
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inline void mutex_unlock(MutexType* mutex) { pthread_mutex_unlock(mutex); } |
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# define PEGASUS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER | # define PEGASUS_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER |
#endif | #endif |
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#if defined(PEGASUS_HAVE_WINDOWS_THREADS) | #if defined(PEGASUS_HAVE_WINDOWS_THREADS) |
typedef HANDLE MutexType; | typedef HANDLE MutexType; |
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inline void mutex_lock(MutexType* m) { WaitForSingleObject(*m, INFINITE); } |
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inline void mutex_unlock(MutexType* m) { ReleaseMutex(*m); } |
struct MutexRep | struct MutexRep |
{ | { |
MutexType handle; | MutexType handle; |
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size_t count; |
}; | }; |
inline void mutex_lock(MutexType* m) { WaitForSingleObject(*m, INFINITE); } |
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inline void mutex_unlock(MutexType* m) { ReleaseMutex(*m); } |
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# define PEGASUS_MUTEX_INITIALIZER (CreateMutex(NULL, FALSE, NULL)) | # define PEGASUS_MUTEX_INITIALIZER (CreateMutex(NULL, FALSE, NULL)) |
#endif | #endif |
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~Mutex(); | ~Mutex(); |
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void lock() |
void lock(); |
{ |
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mutex_lock(&_rep.mutex); |
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} |
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void try_lock(); | void try_lock(); |
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void timed_lock(Uint32 milliseconds); | void timed_lock(Uint32 milliseconds); |
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void unlock() |
void unlock(); |
{ |
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mutex_unlock(&_rep.mutex); |
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} |
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private: | private: |
Mutex(const Mutex&); | Mutex(const Mutex&); |
Mutex& operator=(const Mutex&); | Mutex& operator=(const Mutex&); |
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MutexRep _rep; | MutexRep _rep; |
Magic<0x57D11485> _magic; | Magic<0x57D11485> _magic; |
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{ | { |
public: | public: |
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AutoMutex(Mutex& mutex) : _mutex(mutex) |
AutoMutex(Mutex& mutex, Boolean autoLock = true) : |
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_mutex(mutex), _locked(autoLock) |
{ | { |
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if (autoLock) |
_mutex.lock(); | _mutex.lock(); |
} | } |
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~AutoMutex() | ~AutoMutex() |
{ | { |
_mutex.unlock(); |
try |
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{ |
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if (_locked) |
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unlock(); |
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} |
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catch (...) |
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{ |
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// Do not propagate exception from destructor |
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} |
} | } |
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void lock() | void lock() |
{ | { |
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if (_locked) |
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throw AlreadyLocked(ThreadType()); |
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_mutex.lock(); | _mutex.lock(); |
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_locked = true; |
} | } |
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void unlock() | void unlock() |
{ | { |
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if (!_locked) |
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throw Permission(ThreadType()); |
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_mutex.unlock(); | _mutex.unlock(); |
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_locked = false; |
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} |
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Boolean isLocked() const |
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{ |
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return _locked; |
} | } |
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private: | private: |
AutoMutex(); |
AutoMutex(); // Unimplemented |
AutoMutex(const AutoMutex& x); |
AutoMutex(const AutoMutex& x); // Unimplemented |
AutoMutex& operator=(const AutoMutex& x); |
AutoMutex& operator=(const AutoMutex& x); // Unimplemented |
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Mutex& _mutex; | Mutex& _mutex; |
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Boolean _locked; |
}; | }; |
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PEGASUS_NAMESPACE_END | PEGASUS_NAMESPACE_END |