/contrib/ntp/kernel/sys/chudefs.h

https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 22 lines · 9 code · 4 blank · 9 comment · 0 complexity · 6690102d51fc566b665964d01a4f5285 MD5 · raw file 

    

  1. /*
    2. 

  2.  * Definitions for the CHU line discipline v2.0
    3. 

  3.  */
    4. 

  4. 

  5. /*
    6. 

  6.  * The CHU time code consists of 10 BCD digits and is repeated
    7. 

  7.  * twice for a total of 10 characters.  A time is taken after
    8. 

  8.  * the arrival of each character.  The following structure is
    9. 

  9.  * used to return this stuff.
    10. 

  10.  */
    11. 

  11. #define	NCHUCHARS	(10)
    12. 

  12. 

  13. struct chucode {
    14. 

  14. 	u_char codechars[NCHUCHARS];	/* code characters */
    15. 

  15. 	u_char ncodechars;		/* number of code characters */
    16. 

  16. 	u_char chutype;			/* packet type */
    17. 

  17. 	struct timeval codetimes[NCHUCHARS];	/* arrival times */
    18. 

  18. };
    19. 

  19. 

  20. #define CHU_TIME 0		/* second half is equal to first half */
    21. 

  21. #define CHU_YEAR 1		/* second half is one's complement */
    22.