/contrib/ntp/include/ntp_syscall.h

https://bitbucket.org/freebsd/freebsd-head/ · C++ Header · 55 lines · 43 code · 8 blank · 4 comment · 2 complexity · cf5a15fb5666934569b01c94ba2f0d18 MD5 · raw file 

    

  1. /*
    2. 

  2.  * ntp_syscall.h - various ways to perform the ntp_adjtime() and ntp_gettime()
    3. 

  3.  * 		   system calls.
    4. 

  4.  */
    5. 

  5. 

  6. #ifndef NTP_SYSCALL_H
    7. 

  7. #define NTP_SYSCALL_H
    8. 

  8. 

  9. #ifdef HAVE_CONFIG_H
    10. 

  10. #include <config.h>
    11. 

  11. #endif
    12. 

  12. 

  13. #ifdef HAVE_SYS_TIMEX_H
    14. 

  14. # include <sys/timex.h>
    15. 

  15. #endif
    16. 

  16. 

  17. #ifndef NTP_SYSCALLS_LIBC
    18. 

  18. #ifdef NTP_SYSCALLS_STD
    19. 

  19. # define ntp_adjtime(t)		syscall(SYS_ntp_adjtime, (t))
    20. 

  20. # define ntp_gettime(t)		syscall(SYS_ntp_gettime, (t))
    21. 

  21. #else /* !NTP_SYSCALLS_STD */
    22. 

  22. # ifdef HAVE___ADJTIMEX
    23. 

  23. extern	int	__adjtimex	P((struct timex *));
    24. 

  24. 

  25. #  define ntp_adjtime(t)	__adjtimex((t))
    26. 

  26. 

  27. static inline int
    28. 

  28. ntp_gettime(
    29. 

  29. 	struct ntptimeval *ntv
    30. 

  30. 	)
    31. 

  31. {
    32. 

  32. 	struct timex tntx;
    33. 

  33. 	int result;
    34. 

  34. 

  35. 	tntx.modes = 0;
    36. 

  36. 	result = __adjtimex (&tntx);
    37. 

  37. 	ntv->time = tntx.time;
    38. 

  38. 	ntv->maxerror = tntx.maxerror;
    39. 

  39. 	ntv->esterror = tntx.esterror;
    40. 

  40. #ifdef NTP_API
    41. 

  41. # if NTP_API > 3
    42. 

  42. 	ntv->tai = tntx.tai;
    43. 

  43. # endif
    44. 

  44. #endif
    45. 

  45. 	return(result);
    46. 

  46. }
    47. 

  47. # else /* !HAVE__ADJTIMEX */
    48. 

  48. #  ifdef HAVE___NTP_GETTIME
    49. 

  49. #   define ntp_gettime(t)	__ntp_gettime((t))
    50. 

  50. #  endif
    51. 

  51. # endif /* !HAVE_ADJTIMEX */
    52. 

  52. #endif /* !NTP_SYSCALLS_STD */
    53. 

  53. #endif /* !NTP_SYSCALLS_LIBC */
    54. 

  54. 

  55. #endif /* NTP_SYSCALL_H */
    56.