diff options
Diffstat (limited to 'libglusterfs/src/timespec.c')
-rw-r--r-- | libglusterfs/src/timespec.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libglusterfs/src/timespec.c b/libglusterfs/src/timespec.c index f7b2bea2f30..903303d1380 100644 --- a/libglusterfs/src/timespec.c +++ b/libglusterfs/src/timespec.c @@ -60,3 +60,15 @@ void timespec_adjust_delta (struct timespec *ts, struct timespec delta) ts->tv_sec += ((ts->tv_nsec + delta.tv_nsec) / 1000000000); ts->tv_sec += delta.tv_sec; } + +void timespec_sub (const struct timespec *begin, const struct timespec *end, + struct timespec *res) +{ + if (end->tv_nsec < begin->tv_nsec) { + res->tv_sec = end->tv_sec - begin->tv_sec - 1; + res->tv_nsec = end->tv_nsec + 1000000000 - begin->tv_nsec; + } else { + res->tv_sec = end->tv_sec - begin->tv_sec; + res->tv_nsec = end->tv_nsec - begin->tv_nsec; + } +} |