Merge in ast_strftime branch, which changes timestamps to be accurate to the microsecond, instead of only to the second

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@75706 65c4cc65-6c06-0410-ace0-fbb531ad65f3

main/utils.c

@@ -973,6 +973,33 @@ int ast_atomic_fetchadd_int_slow(volatile int *p, int v)
         return ret;
 }
 
+/*! \brief
+ * get values from config variables.
+ */
+int ast_get_timeval(const char *src, struct timeval *dst, struct timeval _default, int *consumed)
+{
+	long double dtv = 0.0;
+	int scanned;
+
+	if (dst == NULL)
+		return -1;
+
+	*dst = _default;
+
+	if (ast_strlen_zero(src))
+		return -1;
+
+	/* only integer at the moment, but one day we could accept more formats */
+	if (sscanf(src, "%Lf%n", &dtv, &scanned) > 0) {
+		dst->tv_sec = dtv;
+		dst->tv_usec = (dtv - dst->tv_sec) * 1000000.0;
+		if (consumed)
+			*consumed = scanned;
+		return 0;
+	} else
+		return -1;
+}
+
 /*! \brief
  * get values from config variables.
  */