2 files changed, 13 insertions, 0 deletions
diff --git a/src/common/util.c b/src/common/util.c
index ae385e1b94..5eb0f9a69b 100644
--- a/src/common/util.c
+++ b/src/common/util.c
@@ -1232,6 +1232,18 @@ tv_mdiff(const struct timeval *start, const struct timeval *end)
   return mdiff;
 }
 
+/**
+ * Converts timeval to milliseconds.
+ */
+int64_t
+tv_to_msec(const struct timeval *tv)
+{
+  int64_t conv = ((int64_t)tv->tv_sec)*1000L;
+  /* Round ghetto-style */
+  conv += ((int64_t)tv->tv_usec+500)/1000L;
+  return conv;
+}
+
 /** Yield true iff <b>y</b> is a leap-year. */
 #define IS_LEAPYEAR(y) (!(y % 4) && ((y % 100) || !(y % 400)))
 /** Helper: Return the number of leap-days between Jan 1, y1 and Jan 1, y2. */
diff --git a/src/common/util.h b/src/common/util.h
index 96a02dd775..73daa6e2a1 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -253,6 +253,7 @@ int base16_decode(char *dest, size_t destlen, const char *src, size_t srclen);
 /* Time helpers */
 long tv_udiff(const struct timeval *start, const struct timeval *end);
 long tv_mdiff(const struct timeval *start, const struct timeval *end);
+int64_t tv_to_msec(const struct timeval *tv);
 int tor_timegm(const struct tm *tm, time_t *time_out);
 #define RFC1123_TIME_LEN 29
 void format_rfc1123_time(char *buf, time_t t);