X-Git-Url: https://git.distorted.org.uk/~mdw/disorder/blobdiff_plain/e83d0967d4c0965eb8036248acc20d1bf12ad1d8..189e98302534f1bf59c7ed0b29ba6dd025b45fc1:/lib/timeval.h

diff --git a/lib/timeval.h b/lib/timeval.h
index cefc990..9ec8c31 100644
--- a/lib/timeval.h
+++ b/lib/timeval.h
@@ -38,6 +38,12 @@ static inline struct timeval tvsub(const struct timeval a,
   return r;
 }
 
+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));
+}
+
 #endif /* TIMEVAL_H */
 
 /*