/* compare two time (LttTime), 0:t1=t2, -1:t1<t2, 1:t1>t2 */
int timecmp(LttTime * t1, LttTime * t2);
-/* get an integer number */
-int getIntNumber(int size1, void *evD);
-
/*****************************************************************************
}else if(ev->event_id == TRACE_BLOCK_END){
break;
}else g_error("Not valid facilities trace file\n");
- g_free(ev);
}
}
}
{
int i, 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);
if(strcmp(f->name,name)==0){
count++;
LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i)
{
- return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
+ return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i);
}
LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i)
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
g_print("End of file\n");
return;
}
- g_free(ev);
lttTime = getEventTime(t);
err = timecmp(<tTime, &time);
if(err >= 0)return;
}
}
+/*****************************************************************************
+ * 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
LttEvent *ltt_tracefile_read(LttTracefile *t)
{
- LttEvent * lttEvent = (LttEvent *)g_new(LttEvent, 1);
+ LttEvent * lttEvent = &t->an_event;
int err;
+ if(t->cur_event_pos == t->buffer + t->block_size){
+ if(t->which_block == t->block_number){
+ return NULL;
+ }
+ err = readBlock(t, t->which_block + 1);
+ if(err)g_error("Can not read tracefile");
+ }
+
lttEvent->event_id = (int)(*(uint16_t *)(t->cur_event_pos));
if(lttEvent->event_id == TRACE_TIME_HEARTBEAT)
t->cur_heart_beat_number++;
lttEvent->tracefile = t;
lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE;
+ lttEvent->which_block = t->which_block;
+ lttEvent->which_event = t->which_event;
//update the fields of the current event and go to the next event
err = skipEvent(t);
- if(err == ENOMEM){
- g_free(lttEvent);
- return NULL;
- }
- if(err == ENOENT) return lttEvent;
if(err == ERANGE) g_error("event id is out of range\n");
- if(err)g_error("Can not read tracefile\n");
return lttEvent;
}
* t : tracefile
*return value
* 0 : success
- * EINVAL : lseek fail
- * EIO : can not read from the file
- * ENOMEM : end of file
- * ENOENT : last event
* ERANGE : event id is out of range
****************************************************************************/
void * evData;
LttEventType * evT;
LttField * rootFld;
- static int evCount = 0;
-
- if(evCount){
- if(t->which_block == t->block_number &&
- evCount == t->which_event){
- return ENOMEM;
- }else evCount = 0;
- }
evId = (int)(*(uint16_t *)(t->cur_event_pos));
evData = t->cur_event_pos + EVENT_HEADER_SIZE;
- //regard BLOCK_START, END and HEARTBEAT as special case, there are buildin events
- if(evId != TRACE_BLOCK_START && evId != TRACE_BLOCK_END && evId != TRACE_TIME_HEARTBEAT){
- evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId);
+ evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId);
- if(evT) rootFld = evT->root_field;
- else return ERANGE;
+ if(evT) rootFld = evT->root_field;
+ else return ERANGE;
- if(rootFld){
- //event has string/sequence or the last event is not the same event
- if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event)
- && rootFld->field_fixed == 0){
- setFieldsOffset(t, evT, evData, t->trace);
- }
- t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size;
- }else t->cur_event_pos += EVENT_HEADER_SIZE;
-
- evT->latest_block = t->which_block;
- evT->latest_event = t->which_event;
- }else{
- if(evId == TRACE_BLOCK_START || evId == TRACE_BLOCK_END){
- t->cur_event_pos += sizeof(BlockStart) + EVENT_HEADER_SIZE;
- }else{
- t->cur_event_pos += sizeof(TimeHeartbeat) + EVENT_HEADER_SIZE;
+ if(rootFld){
+ //event has string/sequence or the last event is not the same event
+ if((evT->latest_block!=t->which_block || evT->latest_event!=t->which_event)
+ && rootFld->field_fixed == 0){
+ setFieldsOffset(t, evT, evData, t->trace);
}
- }
-
+ t->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size;
+ }else t->cur_event_pos += EVENT_HEADER_SIZE;
+
+ evT->latest_block = t->which_block;
+ evT->latest_event = t->which_event;
+
//the next event is in the next block
if(evId == TRACE_BLOCK_END){
- if(t->which_block == t->block_number){
- t->which_event++;
- evCount = t->which_event;
- return ENOENT;
- }
- err = readBlock(t, t->which_block + 1);
- if(err) return err;
+ t->cur_event_pos = t->buffer + t->block_size;
}else{
t->which_event++;
t->current_event_time = getEventTime(t);
}else if(type->type_class == LTT_SEQUENCE){
size1 = (int) ltt_type_size(trace, type);
if(fld->field_fixed == -1){
+ fld->sequ_number_size = size1;
fld->field_fixed = 0;
size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace);
fld->element_size = size;
int timecmp(LttTime * t1, LttTime * t2)
{
- LttTime T;
- TimeSub(T, *t1, *t2);
- if(T.tv_sec == 0 && T.tv_nsec == 0) return 0;
- else if(T.tv_sec > 0 || (T.tv_sec==0 && T.tv_nsec > 0)) return 1;
- else return -1;
+ if(t1->tv_sec < t2->tv_sec) return -1;
+ if(t1->tv_sec > t2->tv_sec) return 1;
+ if(t1->tv_nsec < t2->tv_nsec) return -1;
+ if(t1->tv_nsec > t2->tv_nsec) return 1;
+ return 0;
}
/*****************************************************************************
projects / lttv.git / blobdiff