Function time_sub_

ccan/ccan/time/time.h:313–326

}

static inline struct timespec time_sub_(struct timespec recent,
					struct timespec old)
{
	struct timespec diff;

	diff.tv_sec = TIME_CHECK(recent).tv_sec - TIME_CHECK(old).tv_sec;
	if (old.tv_nsec > recent.tv_nsec) {
		diff.tv_sec--;
		diff.tv_nsec = 1000000000 + recent.tv_nsec - old.tv_nsec;
	} else
		diff.tv_nsec = recent.tv_nsec - old.tv_nsec;

	return TIME_CHECK(diff);
}

/**
 * time_sub - subtract two relative times