return r;
}
-static inline uint64_t tvsub_us(const struct timeval a,
- const struct timeval b) {
+static inline int64_t tvsub_us(const struct timeval a,
+ const struct timeval b) {
return (((uint64_t)a.tv_sec * 1000000 + a.tv_usec)
- ((uint64_t)b.tv_sec * 1000000 + b.tv_usec));
}