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C/C++ Source or Header  |  2006-08-11  |  434 b   |  13 lines
  1. /* rwsem-const.h: RW semaphore counter constants.  */
  2. #ifndef _SPARC64_RWSEM_CONST_H
  3. #define _SPARC64_RWSEM_CONST_H
  4.  
  5. #define RWSEM_UNLOCKED_VALUE        0x00000000
  6. #define RWSEM_ACTIVE_BIAS        0x00000001
  7. #define RWSEM_ACTIVE_MASK        0x0000ffff
  8. #define RWSEM_WAITING_BIAS        0xffff0000
  9. #define RWSEM_ACTIVE_READ_BIAS        RWSEM_ACTIVE_BIAS
  10. #define RWSEM_ACTIVE_WRITE_BIAS        (RWSEM_WAITING_BIAS + RWSEM_ACTIVE_BIAS)
  11.  
  12. #endif /* _SPARC64_RWSEM_CONST_H */
  13.