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  1. /********************************************************************\
  2.  
  3.   Name:         rb.h
  4.   Created by:   Stefan Ritt
  5.  
  6.   Contents:     Function declarations and constants for ring buffer
  7.                 routines
  8.  
  9.   $Id: rb.h 17217 2011-02-25 15:31:29Z ritt $
  10.  
  11. \********************************************************************/
  12.  
  13. #define RB_SUCCESS         1
  14. #define RB_NO_MEMORY       2
  15. #define RB_INVALID_PARAM   3
  16. #define RB_INVALID_HANDLE  4
  17. #define RB_TIMEOUT         5
  18.  
  19. #define POINTER_T unsigned int
  20.  
  21. int rb_set_nonblocking();
  22. int rb_create(int size, int max_event_size, int *ring_buffer_handle);
  23. int rb_delete(int ring_buffer_handle);
  24. int rb_get_wp(int handle, void **p, int millisec);
  25. int rb_increment_wp(int handle, int size);
  26. int rb_get_rp(int handle, void **p, int millisec);
  27. int rb_increment_rp(int handle, int size);
  28. int rb_get_buffer_level(int handle, int * n_bytes);
  29.