int i;
unsigned count = 0;
LttFacility * f;
- for(i=0;i=t->facility_number;i++){
+ for(i=0;i<t->facility_number;i++){
f = (LttFacility*)g_ptr_array_index(t->facilities, i);
count += f->event_number;
}
return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
}
+/*****************************************************************************
+ * Get the start time and end time of the trace
+ ****************************************************************************/
+
+void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end)
+{
+ LttTime startSmall, startTmp, endBig, endTmp;
+ int i, j=0;
+ LttTracefile * tf;
+
+ for(i=0;i<t->control_tracefile_number;i++){
+ tf = g_ptr_array_index(t->control_tracefiles, i);
+ readBlock(tf,1);
+ startTmp = tf->a_block_start->time;
+ readBlock(tf,tf->block_number);
+ endTmp = tf->a_block_end->time;
+ if(i==0){
+ startSmall = startTmp;
+ endBig = endTmp;
+ j = 1;
+ continue;
+ }
+ if(timecmp(&startSmall,&startTmp) > 0) startSmall = startTmp;
+ if(timecmp(&endBig,&endTmp) < 0) endBig = endTmp;
+ }
+
+ for(i=0;i<t->per_cpu_tracefile_number;i++){
+ tf = g_ptr_array_index(t->per_cpu_tracefiles, i);
+ readBlock(tf,1);
+ startTmp = tf->a_block_start->time;
+ readBlock(tf,tf->block_number);
+ endTmp = tf->a_block_end->time;
+ if(j == 0 && i==0){
+ startSmall = startTmp;
+ endBig = endTmp;
+ continue;
+ }
+ if(timecmp(&startSmall,&startTmp) > 0) startSmall = startTmp;
+ if(timecmp(&endBig,&endTmp) < 0) endBig = endTmp;
+ }
+
+ *start = startSmall;
+ *end = endBig;
+}
+
+
/*****************************************************************************
*Get the name of a tracefile
****************************************************************************/
return tf->name;
}
+/*****************************************************************************
+ * Get the number of blocks in the tracefile
+ ****************************************************************************/
+
+unsigned ltt_tracefile_block_number(LttTracefile *tf)
+{
+ return tf->block_number;
+}
+
/*****************************************************************************
*Function name
* ltt_tracefile_seek_time: seek to the first event of the trace with time
LttEvent * ev;
if(headTime < 0 && tailTime > 0){
- lttTime = getEventTime(t);
- err = timecmp(<tTime, &time);
- if(err > 0){
- if(t->which_event==2 || timecmp(&t->prev_event_time,&time)<0){
- return;
- }else{
- updateTracefile(t);
- return ltt_tracefile_seek_time(t, time);
- }
- }else if(err < 0){
- while(1){
- ev = ltt_tracefile_read(t);
- if(ev == NULL){
- g_print("End of file\n");
+ if(timecmp(&(t->a_block_end->time),&(t->current_event_time)) !=0){
+ lttTime = getEventTime(t);
+ err = timecmp(<tTime, &time);
+ if(err > 0){
+ if(t->which_event==2 || timecmp(&t->prev_event_time,&time)<0){
return;
+ }else{
+ updateTracefile(t);
+ return ltt_tracefile_seek_time(t, time);
}
- lttTime = getEventTime(t);
- err = timecmp(<tTime, &time);
- if(err >= 0)return;
- }
- }else return;
- }else if(headTime > 0){
+ }else if(err < 0){
+ while(1){
+ ev = ltt_tracefile_read(t);
+ if(ev == NULL){
+ g_print("End of file\n");
+ return;
+ }
+ lttTime = getEventTime(t);
+ err = timecmp(<tTime, &time);
+ if(err >= 0)return;
+ }
+ }else return;
+ }else{//we are at the end of the block
+ updateTracefile(t);
+ return ltt_tracefile_seek_time(t, time);
+ }
+ }else if(headTime >= 0){
if(t->which_block == 1){
updateTracefile(t);
}else{
return;
}
if(tailTime < 0) return ltt_tracefile_seek_time(t, time);
- }else if(headTime == 0){
- updateTracefile(t);
}else if(tailTime == 0){
- t->cur_event_pos = t->a_block_end - EVENT_HEADER_SIZE;
+ t->cur_event_pos = t->last_event_pos;
t->current_event_time = time;
t->cur_heart_beat_number = 0;
t->prev_event_time.tv_sec = 0;
}
}
+/*****************************************************************************
+ * Seek to the first event with position equal or larger to ep
+ ****************************************************************************/
+
+void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep)
+{
+ //if we are at the right place, just return
+ if(t->which_block == ep->block_num && t->which_event == ep->event_num)
+ return;
+
+ if(t->which_block == ep->block_num) updateTracefile(t);
+ else readBlock(t,ep->block_num);
+
+ //event offset is availiable
+ if(ep->old_position){
+ t->cur_heart_beat_number = ep->heart_beat_number;
+ t->cur_event_pos = t->buffer + ep->event_offset;
+ return;
+ }
+
+ //only block number and event index are availiable
+ while(t->which_event < ep->event_num) ltt_tracefile_read(t);
+
+ return;
+}
+
/*****************************************************************************
*Function name
* ltt_tracefile_read : read the current event, set the pointer to the next
if(t->cur_event_pos == t->buffer + t->block_size){
if(t->which_block == t->block_number){
- g_free(lttEvent);
return NULL;
}
err = readBlock(t, t->which_block + 1);
lttEvent->time_delta = *(uint32_t*)(t->cur_event_pos + EVENT_ID_SIZE);
lttEvent->event_time = t->current_event_time;
- lttEvent->event_cycle_count = ((uint64_t)1)<<32 * t->cur_heart_beat_number
- + lttEvent->time_delta;
-
lttEvent->tracefile = t;
lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE;
lttEvent->which_block = t->which_block;
err = skipEvent(t);
if(err == ERANGE) g_error("event id is out of range\n");
+ lttEvent->event_cycle_count = t->cur_cycle_count;
+
return lttEvent;
}
lostSize = *(uint32_t*)(tf->buffer + tf->block_size - sizeof(uint32_t));
tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size -
lostSize + EVENT_HEADER_SIZE);
+ tf->last_event_pos = tf->buffer + tf->block_size - lostSize;
tf->which_block = whichBlock;
tf->which_event = 1;
TimeSub(lBufTotalTime,t->a_block_end->time, t->a_block_start->time);
/* Calculate the total cycles for this bufffer */
- lBufTotalCycle = t->a_block_end->cycle_count
- - t->a_block_start->cycle_count;
+ lBufTotalCycle = t->a_block_end->cycle_count;
+ lBufTotalCycle -= t->a_block_start->cycle_count;
/* Convert the total time to nsecs */
- lBufTotalNSec = lBufTotalTime.tv_sec * 1000000000 + lBufTotalTime.tv_nsec;
+ lBufTotalNSec = lBufTotalTime.tv_sec;
+ lBufTotalNSec *= NANSECOND_CONST;
+ lBufTotalNSec += lBufTotalTime.tv_nsec;
t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec;
}
double lEventNSec; // Total usecs from start for event
LttTime lTimeOffset; // Time offset in struct LttTime
uint16_t evId;
-
+ int64_t nanoSec, tmpCycleCount = (((uint64_t)1)<<32);
+ static LttCycleCount preCycleCount = 0;
+ static int count = 0;
+
evId = *(uint16_t*)tf->cur_event_pos;
- if(evId == TRACE_BLOCK_START)
+ if(evId == TRACE_BLOCK_START){
+ count = 0;
+ preCycleCount = 0;
+ tf->cur_cycle_count = tf->a_block_start->cycle_count;
return tf->a_block_start->time;
- else if(evId == TRACE_BLOCK_END)
+ }else if(evId == TRACE_BLOCK_END){
+ count = 0;
+ preCycleCount = 0;
+ tf->cur_cycle_count = tf->a_block_end->cycle_count;
return tf->a_block_end->time;
+ }
-
- // Calculate total time in cycles from start of buffer for this event
+ // Calculate total time in cycles from start of buffer for this event
cycle_count = (LttCycleCount)*(uint32_t*)(tf->cur_event_pos + EVENT_ID_SIZE);
- if(tf->cur_heart_beat_number)
- cycle_count += ((uint64_t)1)<<32 * tf->cur_heart_beat_number;
- lEventTotalCycle = cycle_count - tf->a_block_start->cycle_count;
+
+ if(cycle_count < preCycleCount)count++;
+ preCycleCount = cycle_count;
+ cycle_count += tmpCycleCount * count;
+
+ if(tf->cur_heart_beat_number > count)
+ cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - count);
+
+ tf->cur_cycle_count = cycle_count;
+
+ lEventTotalCycle = cycle_count;
+ lEventTotalCycle -= tf->a_block_start->cycle_count;
// Convert it to nsecs
lEventNSec = lEventTotalCycle / tf->cycle_per_nsec;
-
+ nanoSec = lEventNSec;
+
// Determine offset in struct LttTime
- lTimeOffset.tv_nsec = (long)lEventNSec % 1000000000;
- lTimeOffset.tv_sec = (long)lEventNSec / 1000000000;
+ lTimeOffset.tv_nsec = nanoSec % NANSECOND_CONST;
+ lTimeOffset.tv_sec = nanoSec / NANSECOND_CONST;
TimeAdd(time, tf->a_block_start->time, lTimeOffset);
-
+
return time;
}
projects / lttv.git / blobdiff