diff options
| -rw-r--r-- | include/sys/time.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/sys/time.h b/include/sys/time.h index 766ac728..70fd5687 100644 --- a/include/sys/time.h +++ b/include/sys/time.h @@ -42,6 +42,16 @@ struct timezone { int tz_minuteswest; int tz_dsttime; }; +#define timerisset(t) ((t)->tv_sec || (t)->tv_usec) +#define timerclear(t) ((t)->tv_sec = (t)->tv_usec = 0) +#define timercmp(s,t,op) ((s)->tv_sec == (t)->tv_sec ? \ + (s)->tv_usec op (t)->tv_usec : (s)->tv_sec op (t)->tv_sec) +#define timeradd(s,t,a) ( (a)->tv_sec = (s)->tv_sec + (t)->tv_sec, \ + ((a)->tv_usec = (s)->tv_usec + (t)->tv_usec) >= 1000000 && \ + ((a)->tv_usec -= 1000000, (a)->tv_sec++) ) +#define timersub(s,t,a) ( (a)->tv_sec = (s)->tv_sec - (t)->tv_sec, \ + ((a)->tv_usec = (s)->tv_usec - (t)->tv_usec) < 0 && \ + ((a)->tv_usec += 1000000, (a)->tv_sec--) ) #endif #ifdef __cplusplus |