X-Git-Url: http://git.lttng.org./?a=blobdiff_plain;f=ltt%2Fbranches%2Fpoly%2Fltt%2Ftracefile.c;h=43334ed366d727fcb1527ed7ef7b411ed178004e;hb=487ad18102bd5f8a398f3c14ed3a489d3c89a181;hp=31d8734bc693d850cb568d52ef4a26fb47472de9;hpb=09ad4797c84b03978d1e669a166f1b9f2f761d03;p=lttv.git diff --git a/ltt/branches/poly/ltt/tracefile.c b/ltt/branches/poly/ltt/tracefile.c index 31d8734b..43334ed3 100644 --- a/ltt/branches/poly/ltt/tracefile.c +++ b/ltt/branches/poly/ltt/tracefile.c @@ -36,37 +36,6 @@ int skipEvent(LttTracefile * t); /* compare two time (LttTime), 0:t1=t2, -1:t1t2 */ int timecmp(LttTime * t1, LttTime * t2); -/* get an integer number */ -int getIntNumber(int size1, void *evD); - - -/* Time operation macros for LttTime (struct timespec) */ -/* (T3 = T2 - T1) */ -#define TimeSub(T3, T2, T1) \ -do \ -{\ - (T3).tv_sec = (T2).tv_sec - (T1).tv_sec; \ - (T3).tv_nsec = (T2).tv_nsec - (T1).tv_nsec; \ - if((T3).tv_nsec < 0)\ - {\ - (T3).tv_sec--;\ - (T3).tv_nsec += 1000000000;\ - }\ -} while(0) - -/* (T3 = T2 + T1) */ -#define TimeAdd(T3, T2, T1) \ -do \ -{\ - (T3).tv_sec = (T2).tv_sec + (T1).tv_sec; \ - (T3).tv_nsec = (T2).tv_nsec + (T1).tv_nsec; \ - if((T3).tv_nsec >= 1000000000)\ - {\ - (T3).tv_sec += (T3).tv_nsec / 1000000000;\ - (T3).tv_nsec = (T3).tv_nsec % 1000000000;\ - }\ -} while(0) - /***************************************************************************** @@ -180,7 +149,6 @@ void ltt_tracefile_open_control(LttTrace *t, char * control_name) }else if(ev->event_id == TRACE_BLOCK_END){ break; }else g_error("Not valid facilities trace file\n"); - g_free(ev); } } } @@ -582,7 +550,7 @@ unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position) { int i, count=0; LttFacility * f; - for(i=0;i=t->facility_number;i++){ + for(i=0;ifacility_number;i++){ f = (LttFacility*)g_ptr_array_index(t->facilities, i); if(strcmp(f->name,name)==0){ count++; @@ -685,7 +653,7 @@ int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i) 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) @@ -693,6 +661,52 @@ 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;icontrol_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;iper_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 ****************************************************************************/ @@ -702,6 +716,15 @@ char *ltt_tracefile_name(LttTracefile *tf) 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 @@ -736,7 +759,6 @@ void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) g_print("End of file\n"); return; } - g_free(ev); lttTime = getEventTime(t); err = timecmp(<tTime, &time); if(err >= 0)return; @@ -775,6 +797,32 @@ void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) } } +/***************************************************************************** + * 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 @@ -786,9 +834,17 @@ void ltt_tracefile_seek_time(LttTracefile *t, LttTime time) 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++; @@ -804,16 +860,12 @@ LttEvent *ltt_tracefile_read(LttTracefile *t) 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; } @@ -918,10 +970,6 @@ void updateTracefile(LttTracefile * tf) * 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 ****************************************************************************/ @@ -931,53 +979,30 @@ int skipEvent(LttTracefile * t) 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); @@ -1131,6 +1156,7 @@ int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, }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; @@ -1214,11 +1240,11 @@ int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot, 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; } /*****************************************************************************