diff options
Diffstat (limited to 'src/timer.h')
| -rw-r--r-- | src/timer.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/timer.h b/src/timer.h index accad5b..627bdb2 100644 --- a/src/timer.h +++ b/src/timer.h @@ -44,6 +44,21 @@ struct timezone int tz_dsttime; /* type of dst correction */ }; int gettimeofday(struct timeval *tv, struct timezone *tz); + +/** + * timersub(3) from <sys/time.h> + */ +static inline void timersub(struct timeval* a, struct timeval* b, + struct timeval* res) +{ + res->tv_sec = a->tv_sec - b->tv_sec; + res->tv_usec = a->tv_usec - b->tv_usec; + if (res->tv_usec < 0) + { + res->tv_usec += 1000000; + res->tv_sec--; + } +} #endif /* Interface avec select */ |