From Richard van der Hoff:

Among the improvements are:
- fixes to call-tracking (it's now less likely to confuse two separate 
calls, for instance)
- improvements to Information Element dissection (clearer dissection, 
dissects more IE types, easier to extend)
- you can now filter on the content of DTMF packets
- Analysis of timestamps (calculation of absolute timestamp, and packet 
lateness).
- fixed a couple of assertion failures in subtle corner-cases.

negative relative times:
   - get_timedelta()
   - addtime()
   - ftype-time.c:relative_val_from_unparsed()

I've also moved get_timedelta() and addtime() out of calldata.c into a 
new file, epan/nstime.c, as I needed to use them in a dissector I'm 
working on (and they therefore needed to go into libethereal).

svn path=/trunk/; revision=15201

1 files changed, 23 insertions, 0 deletions

diff --git a/epan/nstime.h b/epan/nstime.h
index 188b96b450..af6a8c7e10 100644
--- a/epan/nstime.h
+++ b/epan/nstime.h
@@ -32,4 +32,27 @@ typedef struct {
 	int	nsecs;
 } nstime_t;
 
+/* functions */
+
+/* calculate the delta between two times
+ *
+ * delta = b-a
+ *
+ * Note that it is acceptable for two or more of the arguments to point at the
+ * same structure.
+ */
+extern void get_timedelta(nstime_t *delta, const nstime_t *b, const nstime_t *a );
+
+/* calculate the sum of two times
+ *
+ * sum = a+b
+ *
+ * Note that it is acceptable for two or more of the arguments to point at the
+ * same structure.
+ */
+extern void get_timesum(nstime_t *sum, const nstime_t *b, const nstime_t *a );
+
+/* sum += a */
+#define addtime(sum, a) get_timesum(sum, sum, b)
+
 #endif /* __NSTIME_H__  */