put start_time in nanosec because do_gettimeofday in kernel

[lttv.git] / ltt / branches / poly / ltt / tracefile.c

diff --git a/ltt/branches/poly/ltt/tracefile.c b/ltt/branches/poly/ltt/tracefile.c
index 470eb5e09a619570bffa7a6e57d2a456fe3cb02c..ad2cf51af5c93f680e3a273da8f580a414957033 100644 (file)
--- a/ltt/branches/poly/ltt/tracefile.c
+++ b/ltt/branches/poly/ltt/tracefile.c
@@ -259,6 +259,10 @@ int parse_trace_header(void *header, LttTracefile *tf, LttTrace *t)
                                               &vheader->start_monotonic);
           t->start_time = ltt_get_time(LTT_GET_BO(tf),
                                        &vheader->start_time);
+          t->start_time.tv_nsec *= 1000; /* microsec to nanosec */
+
+          t->start_time_from_tsc = ltt_time_from_uint64(
+              (double)t->start_tsc * 1000000.0 / (double)t->start_freq);
         }
       }
       break;
@@ -1532,10 +1536,11 @@ LttTime ltt_interpolate_time(LttTracefile *tf, LttEvent *event)
 
 //  time = ltt_time_from_uint64(
 //      cycles_2_ns(tf, (guint64)(tf->buffer.tsc - tf->buffer.begin.cycle_count)));
-  time = ltt_time_from_uint64((tf->buffer.tsc - tf->trace->start_tsc) * 1000000
+  time = ltt_time_from_uint64(
+      (double)(tf->buffer.tsc - tf->trace->start_tsc) * 1000000.0
                                   / (double)tf->trace->start_freq);
   //time = ltt_time_add(tf->buffer.begin.timestamp, time);
-  time = ltt_time_add(tf->trace->start_time, time);
+  time = ltt_time_add(tf->trace->start_time_from_tsc, time);
 
   return time;
 }
@@ -1766,10 +1771,10 @@ static gint map_block(LttTracefile * tf, guint block_num)
                                          &header->begin.freq);
   tf->buffer.begin.timestamp = ltt_time_add(
                                 ltt_time_from_uint64(
-                                  (tf->buffer.begin.cycle_count
-                                  - tf->trace->start_tsc) * 1000000
+                                  (double)(tf->buffer.begin.cycle_count
+                                  - tf->trace->start_tsc) * 1000000.0
                                     / (double)tf->trace->start_freq),
-                                tf->trace->start_time);
+                                tf->trace->start_time_from_tsc);
 #if 0
 
   tf->buffer.end.timestamp = ltt_time_add(
@@ -1789,10 +1794,10 @@ static gint map_block(LttTracefile * tf, guint block_num)
                                         &header->lost_size);
   tf->buffer.end.timestamp = ltt_time_add(
                                 ltt_time_from_uint64(
-                                  (tf->buffer.end.cycle_count
-                                  - tf->trace->start_tsc) * 1000000
+                                  (double)(tf->buffer.end.cycle_count
+                                  - tf->trace->start_tsc) * 1000000.0
                                     / (double)tf->trace->start_freq),
-                                tf->trace->start_time);
+                                tf->trace->start_time_from_tsc);
  
   tf->buffer.tsc =  tf->buffer.begin.cycle_count;
   tf->event.tsc = tf->buffer.tsc;
@@ -2552,13 +2557,17 @@ char * ltt_trace_system_description_description (LttSystemDescription * s)
 }
 
 
-/* get the start time of the trace */
-
-LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s)
+/* get the NTP corrected start time of the trace */
+LttTime ltt_trace_start_time(LttTrace *t)
 {
-  return s->trace_start;
+  return t->start_time;
 }
 
+/* get the monotonic start time of the trace */
+LttTime ltt_trace_start_time_monotonic(LttTrace *t)
+{
+  return t->start_time_from_tsc;
+}
 
 LttTracefile *ltt_tracefile_new()
 {