Changeset 568

Timestamp:

02/09/06 03:55:26 (7 years ago)

Author:

bcj3

Message:

Added measurement of the length of each trace file because I needed to know how long some traces were. Time of the first packet minus time of the last packet is the duration of the trace.

File:

• branches/libtrace2/examples/count/tracestats.c (modified) (4 diffs)

branches/libtrace2/examples/count/tracestats.c

@@ -72 +72 @@
         uint64_t count = 0;
         uint64_t bytes = 0;
+        struct timeval starttime, packettime;
+
+        starttime.tv_sec = 0;
+        starttime.tv_usec = 0;
 
         fprintf(stderr,"%s:\n",uri);
@@ -82 +86 @@
                         break;
                 }
+
+                packettime = trace_get_timeval(&packet);
+                /* 
+                 * save the time of the first packet we see so that we can later
+                 * do some maths and work out how long this trace was
+                 */
+                if(starttime.tv_sec == 0 && starttime.tv_usec == 0)
+                {
+                    starttime.tv_sec = packettime.tv_sec;
+                    starttime.tv_usec = packettime.tv_usec;
+                }
 
                 for(i=0;i<filter_count;++i) {
@@ -94 +109 @@
         }
 
+
         for(i=0;i<filter_count;++i) {
                 printf("%30s:\t%12"PRIu64"\t%12"PRIu64"\t%7.03f\n",filters[i].expr,filters[i].count,filters[i].bytes,filters[i].count*100.0/count);
@@ -102 +118 @@
         totcount+=count;
         totbytes+=bytes;
+        
+        /* subtract the time of the first packet from the time of the last packet we saw */
+        timersub(&packettime, &starttime, &packettime); 
+        printf("Total Duration: %d.%06d seconds\n", (int)packettime.tv_sec, (int)packettime.tv_usec);
 
         trace_destroy(trace);