/* go to the next event */
int skipEvent(LttTracefile * t);
-/* compare two time (LttTime), 0:t1=t2, -1:t1<t2, 1:t1>t2 */
-int timecmp(LttTime * t1, LttTime * t2);
-
-
/*****************************************************************************
*Function name
*are released as well.
****************************************************************************/
-LttTrace *ltt_trace_open(char *pathname)
+LttTrace *ltt_trace_open(const char *pathname)
{
LttTrace * t;
LttSystemDescription * sys_description;
return t;
}
+/******************************************************************************
+ * When we copy a trace, we want all the opening actions to happen again :
+ * the trace will be reopened and totally independant from the original.
+ * That's why we call ltt_trace_open.
+ *****************************************************************************/
+LttTrace *ltt_trace_copy(LttTrace *self)
+{
+ return ltt_trace_open(self->pathname);
+}
+
void ltt_trace_close(LttTrace *t)
{
int i;
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(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp;
+ if(ltt_time_compare(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(ltt_time_compare(startSmall,startTmp) > 0) startSmall = startTmp;
+ if(ltt_time_compare(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
{
int err;
LttTime lttTime;
- int headTime = timecmp(&(t->a_block_start->time), &time);
- int tailTime = timecmp(&(t->a_block_end->time), &time);
+ int headTime = ltt_time_compare(t->a_block_start->time, time);
+ int tailTime = ltt_time_compare(t->a_block_end->time, 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(ltt_time_compare(t->a_block_end->time, t->current_event_time) !=0) {
+ lttTime = getEventTime(t);
+ err = ltt_time_compare(lttTime, time);
+ if(err > 0){
+ if(t->which_event==2 || (&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 = ltt_time_compare(lttTime, 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{
- if(timecmp(&(t->prev_block_end_time),&time) >= 0 ){
+ if(ltt_time_compare(t->prev_block_end_time, time) >= 0 ){
err=readBlock(t,t->which_block-1);
if(err) g_error("Can not read tracefile: %s\n", t->name);
return ltt_tracefile_seek_time(t, time) ;
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;
LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */
/* Calculate the total time for this buffer */
- TimeSub(lBufTotalTime,t->a_block_end->time, t->a_block_start->time);
+ lBufTotalTime = ltt_time_sub(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 *= NANOSECONDS_PER_SECOND;
+ 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;
-
- // Determine offset in struct LttTime
- lTimeOffset.tv_nsec = (long)lEventNSec % 1000000000;
- lTimeOffset.tv_sec = (long)lEventNSec / 1000000000;
+ nanoSec = lEventNSec;
- TimeAdd(time, tf->a_block_start->time, lTimeOffset);
+ // Determine offset in struct LttTime
+ lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND;
+ lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND;
+ time = ltt_time_add(tf->a_block_start->time, lTimeOffset);
+
return time;
}
return size;
}
-/*****************************************************************************
- *Function name
- * timecmp : compare two time
- *Input params
- * t1 : first time
- * t2 : second time
- *Return value
- * int : 0: t1 == t2; -1: t1 < t2; 1: t1 > t2
- ****************************************************************************/
-
-int timecmp(LttTime * t1, LttTime * t2)
-{
- 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;
-}
/*****************************************************************************
*Function name
projects / lttv.git / blobdiff