version 1.6.2.3, 2008/06/30 14:28:44
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version 1.7, 2008/08/14 17:44:27
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#include <Pegasus/Common/Mutex.h> | #include <Pegasus/Common/Mutex.h> |
#include <Pegasus/Common/AtomicInt.h> | #include <Pegasus/Common/AtomicInt.h> |
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#define PEG_SEM_READ 1 |
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#define PEG_SEM_WRITE 2 |
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PEGASUS_NAMESPACE_BEGIN | PEGASUS_NAMESPACE_BEGIN |
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//============================================================================== | //============================================================================== |
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# define PEGASUS_USE_POSIX_RWLOCK | # define PEGASUS_USE_POSIX_RWLOCK |
#elif defined(PEGASUS_PLATFORM_HPUX_ACC) | #elif defined(PEGASUS_PLATFORM_HPUX_ACC) |
# define PEGASUS_USE_POSIX_RWLOCK | # define PEGASUS_USE_POSIX_RWLOCK |
#elif defined(PEGASUS_OS_SOLARIS) |
#elif defined(PEGASUS_PLATFORM_SOLARIS_SPARC_CC) |
# define PEGASUS_USE_POSIX_RWLOCK | # define PEGASUS_USE_POSIX_RWLOCK |
#elif defined(PEGASUS_PLATFORM_TRU64_ALPHA_DECCXX) | #elif defined(PEGASUS_PLATFORM_TRU64_ALPHA_DECCXX) |
# define PEGASUS_USE_POSIX_RWLOCK | # define PEGASUS_USE_POSIX_RWLOCK |
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// @exception WaitFailed | // @exception WaitFailed |
inline void wait_read(ThreadType caller) | inline void wait_read(ThreadType caller) |
{ | { |
wait(PEG_SEM_READ, caller ); |
_wait(false, caller); |
} | } |
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// @exception Deadlock | // @exception Deadlock |
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// @exception WaitFailed | // @exception WaitFailed |
inline void wait_write(ThreadType caller) | inline void wait_write(ThreadType caller) |
{ | { |
wait(PEG_SEM_WRITE, caller); |
_wait(true, caller); |
} | } |
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// @exception Permission | // @exception Permission |
inline void unlock_read(ThreadType caller) | inline void unlock_read(ThreadType caller) |
{ | { |
unlock(PEG_SEM_READ, caller); |
_unlock(false, caller); |
} | } |
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// @exception Permission | // @exception Permission |
inline void unlock_write(ThreadType caller) | inline void unlock_write(ThreadType caller) |
{ | { |
unlock(PEG_SEM_WRITE, caller); |
_unlock(true, caller); |
} | } |
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int read_count() const; | int read_count() const; |
int write_count() const; | int write_count() const; |
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private: |
// @exception Deadlock | // @exception Deadlock |
// @exception Permission | // @exception Permission |
// @exception WaitFailed | // @exception WaitFailed |
// @exception TooManyReaders |
void _wait(Boolean writeLock, ThreadType caller); |
void wait(Uint32 mode, ThreadType caller); |
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// @exception Permission | // @exception Permission |
void unlock(Uint32 mode, ThreadType caller); |
void _unlock(Boolean writeLock, ThreadType caller); |
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private: |
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AtomicInt _readers; | AtomicInt _readers; |
AtomicInt _writers; | AtomicInt _writers; |
ReadWriteSemRep _rwlock; | ReadWriteSemRep _rwlock; |
friend void extricate_read_write(void *); |
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}; | }; |
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//============================================================================== | //============================================================================== |