/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2003-2004 Xiangxiu Yang
+ * Copyright (C) 2003-2004 Xiangxiu Yang, Mathieu Desnoyers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License Version 2 as
#include <stdio.h>
#include <fcntl.h>
+#include <string.h>
+#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <dirent.h>
-#include <linux/errno.h>
+#include <errno.h>
+#include <unistd.h>
+
+// For realpath
+#include <limits.h>
+#include <stdlib.h>
+
#include "parser.h"
#include <ltt/ltt.h>
#include "ltt-private.h"
#include <ltt/trace.h>
#include <ltt/facility.h>
+#include <ltt/event.h>
+#include <ltt/type.h>
#define DIR_NAME_SIZE 256
+#define __UNUSED__ __attribute__((__unused__))
+
+#define g_info(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_INFO, format)
+#define g_debug(format...) g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, format)
+
+
+/* obtain the time of an event */
+
+static inline LttTime getEventTime(LttTracefile * tf);
+
/* set the offset of the fields belonging to the event,
need the information of the archecture */
/* get the size of the field type according to the archtecture's
size and endian type(info of the archecture) */
-int getFieldtypeSize(LttTracefile * tf, LttEventType * evT, int offsetRoot,
- int offsetParent, LttField *fld, void *evD, LttTrace* t);
+static inline gint getFieldtypeSize(LttTracefile * tf,
+ LttEventType * evT, gint offsetRoot,
+ gint offsetParent, LttField *fld, void *evD, LttTrace* t);
/* read a fixed size or a block information from the file (fd) */
int readFile(int fd, void * buf, size_t size, char * mesg);
/* Functions to parse system.xml file (using glib xml parser) */
-static void parser_start_element (GMarkupParseContext *context,
+static void parser_start_element (GMarkupParseContext __UNUSED__ *context,
const gchar *element_name,
const gchar **attribute_names,
const gchar **attribute_values,
int i=0;
LttSystemDescription* des = (LttSystemDescription* )user_data;
if(strcmp("system", element_name)){
- g_warning("This is not system.xml file\n");
- exit(1);
+ *error = g_error_new(G_MARKUP_ERROR,
+ G_LOG_LEVEL_WARNING,
+ "This is not system.xml file");
+ return;
}
while(attribute_names[i]){
}else if(strcmp("ltt_block_size", attribute_names[i])==0){
des->ltt_block_size = atoi(attribute_values[i]);
}else{
- g_warning("Not a valid attribute\n");
- exit(1);
+ *error = g_error_new(G_MARKUP_ERROR,
+ G_LOG_LEVEL_WARNING,
+ "Not a valid attribute");
+ return;
}
i++;
}
}
-static void parser_end_element (GMarkupParseContext *context,
- const gchar *element_name,
- gpointer user_data,
- GError **error)
-{
-}
-
-static void parser_characters (GMarkupParseContext *context,
+static void parser_characters (GMarkupParseContext __UNUSED__ *context,
const gchar *text,
- gsize text_len,
+ gsize __UNUSED__ text_len,
gpointer user_data,
- GError **error)
+ GError __UNUSED__ **error)
{
LttSystemDescription* des = (LttSystemDescription* )user_data;
des->description = g_strdup(text);
{
LttTracefile * tf;
struct stat lTDFStat; /* Trace data file status */
- BlockStart a_block_start;
tf = g_new(LttTracefile, 1);
tf->trace = t;
tf->fd = open(fileName, O_RDONLY, 0);
if(tf->fd < 0){
- g_error("Unable to open input data file %s\n", fileName);
+ g_warning("Unable to open input data file %s\n", fileName);
+ g_free(tf->name);
+ g_free(tf);
+ return NULL;
}
// Get the file's status
if(fstat(tf->fd, &lTDFStat) < 0){
- g_error("Unable to get the status of the input data file %s\n", fileName);
+ g_warning("Unable to get the status of the input data file %s\n", fileName);
+ g_free(tf->name);
+ close(tf->fd);
+ g_free(tf);
+ return NULL;
}
// Is the file large enough to contain a trace
- if(lTDFStat.st_size < sizeof(BlockStart) + EVENT_HEADER_SIZE){
+ if(lTDFStat.st_size < (off_t)(sizeof(BlockStart) + EVENT_HEADER_SIZE)){
g_print("The input data file %s does not contain a trace\n", fileName);
g_free(tf->name);
close(tf->fd);
g_ptr_array_add(t->per_cpu_tracefiles, tf);
}
-void ltt_tracefile_open_control(LttTrace *t, char * control_name)
+gint ltt_tracefile_open_control(LttTrace *t, char * control_name)
{
LttTracefile * tf;
- LttEvent * ev;
+ LttEvent ev;
LttFacility * f;
- guint16 evId;
void * pos;
FacilityLoad fLoad;
- int i;
+ unsigned int i;
tf = ltt_tracefile_open(t,control_name);
- if(!tf) return;
+ if(!tf) {
+ g_warning("ltt_tracefile_open_control : bad file descriptor");
+ return -1;
+ }
t->control_tracefile_number++;
g_ptr_array_add(t->control_tracefiles,tf);
//parse facilities tracefile to get base_id
if(strcmp(&control_name[strlen(control_name)-10],"facilities") ==0){
while(1){
- ev = ltt_tracefile_read(tf);
- if(!ev)return; // end of file
+ if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file
- if(ev->event_id == TRACE_FACILITY_LOAD){
- pos = ev->data;
+ if(ev.event_id == TRACE_FACILITY_LOAD){
+ pos = ev.data;
fLoad.name = (char*)pos;
fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name));
fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum));
break;
}
}
- if(i==t->facility_number)
- g_error("Facility: %s, checksum: %d is not founded\n",
- fLoad.name,fLoad.checksum);
- }else if(ev->event_id == TRACE_BLOCK_START){
+ if(i==t->facility_number) {
+ g_warning("Facility: %s, checksum: %u is not found",
+ fLoad.name,(unsigned int)fLoad.checksum);
+ return -1;
+ }
+ }else if(ev.event_id == TRACE_BLOCK_START){
continue;
- }else if(ev->event_id == TRACE_BLOCK_END){
+ }else if(ev.event_id == TRACE_BLOCK_END){
break;
- }else g_error("Not valid facilities trace file\n");
+ }else {
+ g_warning("Not valid facilities trace file");
+ return -1;
+ }
}
}
+ return 0;
}
/*****************************************************************************
/*****************************************************************************
*Get system information
****************************************************************************/
-void getSystemInfo(LttSystemDescription* des, char * pathname)
+gint getSystemInfo(LttSystemDescription* des, char * pathname)
{
FILE * fp;
char buf[DIR_NAME_SIZE];
- char description[4*DIR_NAME_SIZE];
GMarkupParseContext * context;
- GError * error;
+ GError * error = NULL;
GMarkupParser markup_parser =
{
parser_start_element,
- parser_end_element,
+ NULL,
parser_characters,
NULL, /* passthrough */
NULL /* error */
fp = fopen(pathname,"r");
if(!fp){
- g_error("Can not open file : %s\n", pathname);
+ g_warning("Can not open file : %s\n", pathname);
+ return -1;
}
context = g_markup_parse_context_new(&markup_parser, 0, des,NULL);
while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){
if(!g_markup_parse_context_parse(context, buf, DIR_NAME_SIZE, &error)){
- g_warning("Can not parse xml file: \n%s\n", error->message);
- exit(1);
+ if(error != NULL) {
+ g_warning("Can not parse xml file: \n%s\n", error->message);
+ g_error_free(error);
+ }
+ g_markup_parse_context_free(context);
+ fclose(fp);
+ return -1;
}
}
+ g_markup_parse_context_free(context);
fclose(fp);
+ return 0;
}
/*****************************************************************************
*The following functions get facility/tracefile information
****************************************************************************/
-void getFacilityInfo(LttTrace *t, char* eventdefs)
+gint getFacilityInfo(LttTrace *t, char* eventdefs)
{
DIR * dir;
struct dirent *entry;
char * ptr;
- int i,j;
+ unsigned int i,j;
LttFacility * f;
LttEventType * et;
char name[DIR_NAME_SIZE];
dir = opendir(eventdefs);
- if(!dir) g_error("Can not open directory: %s\n", eventdefs);
+ if(!dir) {
+ g_warning("Can not open directory: %s\n", eventdefs);
+ return -1;
+ }
while((entry = readdir(dir)) != NULL){
ptr = &entry->d_name[strlen(entry->d_name)-4];
setFieldsOffset(NULL, et, NULL, t);
}
}
+ return 0;
}
-void getControlFileInfo(LttTrace *t, char* control)
+gint getControlFileInfo(LttTrace *t, char* control)
{
DIR * dir;
struct dirent *entry;
char name[DIR_NAME_SIZE];
dir = opendir(control);
- if(!dir) g_error("Can not open directory: %s\n", control);
+ if(!dir) {
+ g_warning("Can not open directory: %s\n", control);
+ return -1;
+ }
while((entry = readdir(dir)) != NULL){
if(strcmp(entry->d_name,"facilities") != 0 &&
strcpy(name,control);
strcat(name,entry->d_name);
- ltt_tracefile_open_control(t,name);
+ if(ltt_tracefile_open_control(t,name))
+ return -1;
}
closedir(dir);
+ return 0;
}
-void getCpuFileInfo(LttTrace *t, char* cpu)
+gint getCpuFileInfo(LttTrace *t, char* cpu)
{
DIR * dir;
struct dirent *entry;
char name[DIR_NAME_SIZE];
dir = opendir(cpu);
- if(!dir) g_error("Can not open directory: %s\n", cpu);
+ if(!dir) {
+ g_warning("Can not open directory: %s\n", cpu);
+ return -1;
+ }
while((entry = readdir(dir)) != NULL){
if(strcmp(entry->d_name,".") != 0 &&
}else continue;
}
closedir(dir);
+ return 0;
}
/*****************************************************************************
*
*When a trace is closed, all the associated facilities, types and fields
*are released as well.
+ */
+
+
+/****************************************************************************
+ * get_absolute_pathname
*
- * MD : If pathname is already absolute, we do not add current working
- * directory to it.
+ * return the unique pathname in the system
+ *
+ * MD : Fixed this function so it uses realpath, dealing well with
+ * forgotten cases (.. were not used correctly before).
*
****************************************************************************/
-
void get_absolute_pathname(const char *pathname, char * abs_pathname)
{
- char * ptr, *ptr1;
- size_t size = DIR_NAME_SIZE;
abs_pathname[0] = '\0';
- if(pathname[0] == '/')
- {
- strcat(abs_pathname, pathname);
- return;
- }
-
- if(!getcwd(abs_pathname, size)){
- g_warning("Can not get current working directory\n");
- strcat(abs_pathname, pathname);
+ if ( realpath (pathname, abs_pathname) != NULL)
+ return;
+ else
+ {
+ /* error, return the original path unmodified */
+ strcpy(abs_pathname, pathname);
return;
}
-
- strcat(abs_pathname,"/");
-
- ptr = (char*)pathname;
- ptr1 = ptr + 1;
- while(*ptr == '.' && *ptr1 == '.'){
- ptr += 3;
- ptr1 = ptr + 1;
- }
- strcat(abs_pathname,ptr);
+ return;
}
LttTrace *ltt_trace_open(const char *pathname)
gboolean has_slash = FALSE;
get_absolute_pathname(pathname, abs_path);
-
//establish the pathname to different directories
if(abs_path[strlen(abs_path)-1] == '/')has_slash = TRUE;
strcpy(eventdefs,abs_path);
strcat(cpu,"cpu/");
//new trace
- t = g_new(LttTrace, 1);
sys_description = g_new(LttSystemDescription, 1);
+ t = g_new(LttTrace, 1);
t->pathname = g_strdup(abs_path);
t->facility_number = 0;
t->control_tracefile_number = 0;
//get system description
strcpy(tmp,info);
strcat(tmp,"system.xml");
- getSystemInfo(sys_description, tmp);
+ if(getSystemInfo(sys_description, tmp)) {
+ g_ptr_array_free(t->facilities, TRUE);
+ g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
+ g_ptr_array_free(t->control_tracefiles, TRUE);
+ g_free(sys_description);
+ g_free(t->pathname);
+ g_free(t);
+ return NULL;
+ }
+
+
//get facilities info
- getFacilityInfo(t,eventdefs);
+ if(getFacilityInfo(t,eventdefs)) {
+ g_ptr_array_free(t->facilities, TRUE);
+ g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
+ g_ptr_array_free(t->control_tracefiles, TRUE);
+ g_free(sys_description);
+ g_free(t->pathname);
+ g_free(t);
+ return NULL;
+ }
//get control tracefile info
getControlFileInfo(t,control);
+ /*
+ if(getControlFileInfo(t,control)) {
+ g_ptr_array_free(t->facilities, TRUE);
+ g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
+ g_ptr_array_free(t->control_tracefiles, TRUE);
+ g_free(sys_description);
+ g_free(t->pathname);
+ g_free(t);
+ return NULL;
+ }*/ // With fatal error
//get cpu tracefile info
- getCpuFileInfo(t,cpu);
+ if(getCpuFileInfo(t,cpu)) {
+ g_ptr_array_free(t->facilities, TRUE);
+ g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
+ g_ptr_array_free(t->control_tracefiles, TRUE);
+ g_free(sys_description);
+ g_free(t->pathname);
+ g_free(t);
+ return NULL;
+ }
return t;
}
void ltt_trace_close(LttTrace *t)
{
- int i;
+ unsigned int i;
LttTracefile * tf;
LttFacility * f;
unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position)
{
- int i, count=0;
+ unsigned int i, count=0;
LttFacility * f;
for(i=0;i<t->facility_number;i++){
f = (LttFacility*)g_ptr_array_index(t->facilities, i);
unsigned ltt_trace_eventtype_number(LttTrace *t)
{
- int i;
+ unsigned int i;
unsigned count = 0;
+ unsigned int num = t->facility_number;
LttFacility * f;
- for(i=0;i<t->facility_number;i++){
+
+ for(i=0;i<num;i++){
f = (LttFacility*)g_ptr_array_index(t->facilities, i);
count += f->event_number;
}
return count;
}
+/* FIXME : performances could be improved with a better design for this
+ * function : sequential search through a container has never been the
+ * best on the critical path. */
LttFacility * ltt_trace_facility_by_id(LttTrace * trace, unsigned id)
{
- LttFacility * facility;
- int i;
- for(i=0;i<trace->facility_number;i++){
- facility = (LttFacility*) g_ptr_array_index(trace->facilities,i);
- if(id >= facility->base_id &&
- id < facility->base_id + facility->event_number)
+ LttFacility * facility = NULL;
+ unsigned int i;
+ unsigned int num = trace->facility_number;
+ GPtrArray *facilities = trace->facilities;
+
+ for(i=0;unlikely(i<num);){
+ LttFacility *iter_facility =
+ (LttFacility*) g_ptr_array_index(facilities,i);
+ unsigned base_id = iter_facility->base_id;
+
+ if(likely(id >= base_id &&
+ id < base_id + iter_facility->event_number)) {
+ facility = iter_facility;
break;
+ } else {
+ i++;
+ }
}
- if(i==trace->facility_number) return NULL;
- else return facility;
+
+ return facility;
}
LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId)
{
+ LttEventType *event_type;
+
LttFacility * f;
f = ltt_trace_facility_by_id(t,evId);
- if(!f) return NULL;
- return f->events[evId - f->base_id];
+
+ if(unlikely(!f)) event_type = NULL;
+ else event_type = f->events[evId - f->base_id];
+
+ return event_type;
}
/*****************************************************************************
*and a negative value otherwise.
****************************************************************************/
-int ltt_trace_control_tracefile_find(LttTrace *t, char *name)
+int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name)
{
LttTracefile * tracefile;
- int i;
+ unsigned int i;
for(i=0;i<t->control_tracefile_number;i++){
tracefile = (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i);
if(strcmp(tracefile->name, name)==0)break;
return i;
}
-int ltt_trace_per_cpu_tracefile_find(LttTrace *t, unsigned i)
+/* not really useful. We just have to know that cpu tracefiles
+ * comes before control tracefiles.
+ */
+int ltt_trace_per_cpu_tracefile_find(LttTrace *t, const gchar *name)
{
LttTracefile * tracefile;
- int j, name;
- for(j=0;j<t->per_cpu_tracefile_number;j++){
- tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, j);
- name = atoi(tracefile->name);
- if(name == (int)i)break;
+ unsigned int i;
+ for(i=0;i<t->per_cpu_tracefile_number;i++){
+ tracefile = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
+ if(strcmp(tracefile->name, name)==0)break;
}
- if(j == t->per_cpu_tracefile_number) return -1;
- return j;
+ if(i == t->per_cpu_tracefile_number) return -1;
+ return i;
}
/*****************************************************************************
void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end)
{
LttTime startSmall, startTmp, endBig, endTmp;
- int i, j=0;
+ unsigned int i, j=0;
LttTracefile * tf;
for(i=0;i<t->control_tracefile_number;i++){
if(ltt_time_compare(endBig,endTmp) < 0) endBig = endTmp;
}
- *start = startSmall;
- *end = endBig;
+ if(start != NULL) *start = startSmall;
+ if(end != NULL) *end = endBig;
}
LttTime lttTime;
int headTime = ltt_time_compare(t->a_block_start->time, time);
int tailTime = ltt_time_compare(t->a_block_end->time, time);
- LttEvent * ev;
+ LttEvent ev;
if(headTime < 0 && tailTime > 0){
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){
+ if(t->which_event==2 || ltt_time_compare(t->prev_event_time,time)<0){
return;
}else{
updateTracefile(t);
}
}else if(err < 0){
while(1){
- ev = ltt_tracefile_read(t);
- if(ev == NULL){
+ if(ltt_tracefile_read(t,&ev) == NULL) {
g_print("End of file\n");
return;
}
/*****************************************************************************
* Seek to the first event with position equal or larger to ep
+ *
+ * Modified by Mathieu Desnoyers to used faster offset position instead of
+ * re-reading the whole buffer.
****************************************************************************/
-void ltt_tracefile_seek_position(LttTracefile *t, LttEventPosition *ep)
+void ltt_tracefile_seek_position(LttTracefile *t, const LttEventPosition *ep)
{
//if we are at the right place, just return
- if(t->which_block == ep->block_num && t->which_event == ep->event_num)
+ if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num))
return;
- if(t->which_block == ep->block_num) updateTracefile(t);
+ if(likely(t->which_block == ep->block_num)) updateTracefile(t);
else readBlock(t,ep->block_num);
+ //event offset is available
+ if(likely(ep->old_position)){
+ int err;
- //event offset is availiable
- if(ep->old_position){
- t->cur_heart_beat_number = ep->heart_beat_number;
+ t->which_event = ep->event_num;
t->cur_event_pos = t->buffer + ep->event_offset;
+ t->prev_event_time = ep->event_time;
+ t->current_event_time = ep->event_time;
+ t->cur_heart_beat_number = ep->heart_beat_number;
+ t->cur_cycle_count = ep->event_cycle_count;
+
+ /* This is a workaround for fast position seek */
+ t->last_event_pos = ep->last_event_pos;
+ t->prev_block_end_time = ep->prev_block_end_time;
+ t->prev_event_time = ep->prev_event_time;
+ t->pre_cycle_count = ep->pre_cycle_count;
+ t->count = ep->count;
+ t->overflow_nsec = ep->overflow_nsec;
+ t->last_heartbeat = ep->last_heartbeat;
+ /* end of workaround */
+
+ //update the fields of the current event and go to the next event
+ err = skipEvent(t);
+ if(unlikely(err == ERANGE)) g_error("event id is out of range\n");
+
return;
}
- //only block number and event index are availiable
- while(t->which_event < ep->event_num) ltt_tracefile_read(t);
+ //only block number and event index are available
+ //MD: warning : this is slow!
+ g_warning("using slow O(n) tracefile seek position");
+
+ LttEvent event;
+ while(likely(t->which_event < ep->event_num)) ltt_tracefile_read(t, &event);
return;
}
* LttEvent * : an event to be processed
****************************************************************************/
-LttEvent *ltt_tracefile_read(LttTracefile *t)
+LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event)
{
- LttEvent * lttEvent = &t->an_event;
int err;
- if(t->cur_event_pos == t->buffer + t->block_size){
- if(t->which_block == t->block_number){
+ if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){
+ if(unlikely(t->which_block == t->block_number)){
return NULL;
}
err = readBlock(t, t->which_block + 1);
- if(err)g_error("Can not read tracefile");
+ if(unlikely(err))g_error("Can not read tracefile");
}
- lttEvent->event_id = (int)(*(guint16 *)(t->cur_event_pos));
- if(lttEvent->event_id == TRACE_TIME_HEARTBEAT)
+ event->event_id = (int)(*(guint16 *)(t->cur_event_pos));
+ if(unlikely(event->event_id == TRACE_TIME_HEARTBEAT))
t->cur_heart_beat_number++;
t->prev_event_time = t->current_event_time;
// t->current_event_time = getEventTime(t);
- lttEvent->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE);
- lttEvent->event_time = t->current_event_time;
+ event->time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE);
+ event->event_time = t->current_event_time;
+ event->event_cycle_count = t->cur_cycle_count;
+
+ event->tracefile = t;
+ event->data = t->cur_event_pos + EVENT_HEADER_SIZE;
+ event->which_block = t->which_block;
+ event->which_event = t->which_event;
+
+ /* This is a workaround for fast position seek */
+ event->last_event_pos = t->last_event_pos;
+ event->prev_block_end_time = t->prev_block_end_time;
+ event->prev_event_time = t->prev_event_time;
+ event->pre_cycle_count = t->pre_cycle_count;
+ event->count = t->count;
+ event->overflow_nsec = t->overflow_nsec;
+ event->last_heartbeat = t->last_heartbeat;
+
+ /* end of workaround */
+
- 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 == ERANGE) g_error("event id is out of range\n");
-
- lttEvent->event_cycle_count = t->cur_cycle_count;
+ if(unlikely(err == ERANGE)) g_error("event id is out of range\n");
- return lttEvent;
+ return event;
}
/****************************************************************************
int readFile(int fd, void * buf, size_t size, char * mesg)
{
- ssize_t nbBytes;
- nbBytes = read(fd, buf, size);
- if(nbBytes != size){
- printf("%s\n",mesg);
+ ssize_t nbBytes = read(fd, buf, size);
+
+ if((size_t)nbBytes != size) {
+ if(nbBytes < 0) {
+ perror("Error in readFile : ");
+ } else {
+ g_warning("%s",mesg);
+ }
return EIO;
}
return 0;
}
+/*****************************************************************************
+ *Function name
+ * skipEvent_pre_read_cycles : go to the next event,
+ * update the necessary fields of the current event
+ * increment the cycle counter, save it at the end.
+ *Input params
+ * t : tracefile
+ *return value
+ * 0 : success
+ * ERANGE : event id is out of range
+ ****************************************************************************/
+#if 0
+int skipEvent_pre_read_cycles(LttTracefile * t)
+{
+ int evId;
+ void * evData;
+ LttEventType * evT;
+ LttField * rootFld;
+
+ evId = (int)(*(guint16 *)(t->cur_event_pos));
+ evData = t->cur_event_pos + EVENT_HEADER_SIZE;
+
+ evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId);
+
+ if(likely(evT)) rootFld = evT->root_field;
+ else return ERANGE;
+
+ if(likely(rootFld)){
+ //event has string/sequence or the last event is not the same event
+ if(likely((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(unlikely(evId == TRACE_BLOCK_END)){
+ // Specify end of buffer reached.
+ // t->cur_event_pos = t->buffer + t->block_size;
+ //}else{
+ //g_critical("COUNT : %lu", t->cur_cycle_count);
+ //t->which_event++;
+ // t->current_event_time = getEventTime(t);
+ //}
+
+ return 0;
+}
+#endif //0
+
+
+
+/*****************************************************************************
+ *Function name
+ * ltt_tracefile_pre_read_cycles :
+ * read the current event, increment the cycle counter
+ *Input params
+ * t : tracefile
+ *Return value
+ * False : end of bloc reached
+ ****************************************************************************/
+#if 0
+gboolean ltt_tracefile_pre_read_cycles(LttTracefile *tf)
+{
+ int err;
+ //LttEvent event;
+
+ // if(unlikely(t->cur_event_pos == t->buffer + t->block_size)){
+ //if(unlikely(t->which_block == t->block_number)){
+ // return FALSE;
+ //}
+ // return FALSE; // end of bloc reached
+ //err = readBlock(t, t->which_block + 1);
+ //if(unlikely(err))g_error("Can not read tracefile");
+ //}
+
+ //event.event_id = (int)(*(guint16 *)(t->cur_event_pos));
+ //if(unlikely(event.event_id == TRACE_TIME_HEARTBEAT))
+ // t->cur_heart_beat_number++;
+
+ //t->prev_event_time = t->current_event_time;
+ // t->current_event_time = getEventTime(t);
+
+ //event.time_delta = *(guint32 *)(t->cur_event_pos + EVENT_ID_SIZE);
+ //event.event_time = t->current_event_time;
+ //event.event_cycle_count = t->cur_cycle_count;
+
+ //event.tracefile = t;
+ //event.data = t->cur_event_pos + EVENT_HEADER_SIZE;
+ //event.which_block = t->which_block;
+ //event.which_event = t->which_event;
+
+ /* This is a workaround for fast position seek */
+ //event.last_event_pos = t->last_event_pos;
+ //event.prev_block_end_time = t->prev_block_end_time;
+ //event.prev_event_time = t->prev_event_time;
+ //event.pre_cycle_count = t->pre_cycle_count;
+ //event.count = t->count;
+ //event.last_heartbeat = t->last_heartbeat;
+ /* end of workaround */
+
+
+ /* Increment the cycle counter for the bloc */
+ LttTime time;
+ LttCycleCount cycle_count; // cycle count for the current event
+ LttCycleCount lEventTotalCycle; // Total cycles from start for event
+ LttCycleCount lEventNSec; // Total nsecs from start for event
+ LttTime lTimeOffset; // Time offset in struct LttTime
+ guint16 evId;
+
+ evId = *(guint16 *)tf->cur_event_pos;
+
+ // Calculate total time in cycles from start of buffer for this event
+ cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE);
+ //g_debug("event cycle count %llu", cycle_count);
+ //
+ //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count);
+ //LttCycleCount res_delta_count;
+ gboolean comp_count = cycle_count < tf->pre_cycle_count;
+ tf->pre_cycle_count = cycle_count;
+
+ if(unlikely(comp_count)) {
+ /* Wrapped */
+ tf->count++; //increment wrap count
+ }
+
+ //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++;
+ //if(unlikely(delta_count < 0)) {
+ // tf->count++; //increment wrap count
+ // keep in mind that delta_count is negative here.
+ // res_delta_count = delta_count + 0x100000000ULL ;
+ //} else
+ // res_delta_count = (LttCycleCount)delta_count;
+
+ //cycle_count += (LttCycleCount)tf->count << 32;
+
+ //FIXME (MD)
+ // if(tf->cur_heart_beat_number > tf->count)
+ // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32;
+
+ //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count;
+ tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32);
+ //g_debug("cur cycle count %llu", tf->cur_cycle_count);
+
+
+
+
+ if(unlikely(evId == TRACE_BLOCK_START)){
+ //g_debug("BLOCK START");
+ }else if(unlikely(evId == TRACE_BLOCK_END)){
+ //g_debug("BLOCK END");
+
+ /* The goal of all this pre reading */
+ tf->a_block_end->cycle_count = tf->cur_cycle_count;
+ //g_debug("end of block cycle count : %llu", tf->cur_cycle_count);
+
+ return FALSE;
+ }
+
+ //update the fields of the current event and go to the next event
+ err = skipEvent_pre_read_cycles(tf);
+ if(unlikely(err == ERANGE)) g_error("event id is out of range\n");
+
+
+ return TRUE;
+}
+#endif //0
+
/****************************************************************************
*Function name
* readBlock : read a block from the file
off_t nbBytes;
guint32 lostSize;
- if(whichBlock - tf->which_block == 1 && tf->which_block != 0){
+ /* same block already opened requested */
+ if((guint)whichBlock == tf->which_block) return 0;
+
+ if(likely(whichBlock - tf->which_block == 1 && tf->which_block != 0)){
tf->prev_block_end_time = tf->a_block_end->time;
tf->prev_event_time = tf->a_block_end->time;
}else{
}
nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET);
- if(nbBytes == -1) return EINVAL;
+ if(unlikely(nbBytes == -1)) return EINVAL;
- if(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block"))
+ if(unlikely(readFile(tf->fd,tf->buffer,tf->block_size,"Unable to read a block")))
return EIO;
tf->a_block_start=(BlockStart *) (tf->buffer + EVENT_HEADER_SIZE);
tf->which_event = 1;
tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev
tf->cur_heart_beat_number = 0;
+ tf->last_heartbeat = NULL;
+
+ /* read the whole block to precalculate total of cycles in it */
+ tf->count = 0;
+ tf->pre_cycle_count = 0;
+ tf->cur_cycle_count = 0;
+ //g_debug("precalculating cycles begin for block %i", whichBlock);
+ /* End of block event already has 64 bits cycle counter! */
+ //while(likely(ltt_tracefile_pre_read_cycles(tf)));
+ /* Rough approximation of cycles per usec to calculate
+ * the real block start and end time.
+ */
+ getCyclePerNsec(tf);
+ /* we are at end position, make end time more precise */
+ /* Start overflow_nsec to a negative value : takes account of the
+ * start of block cycle counter */
+ //tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count)
+ // * tf->nsec_per_cycle);
+ /* put back the numbers corresponding to end time */
+ //tf->overflow_nsec += tf->one_overflow_nsec * tf->count;
+
+ //tf->a_block_end->time = getEventTime(tf);
+
+ /* Make start time more precise */
+ /* Start overflow_nsec to a negative value : takes account of the
+ * start of block cycle counter */
+ tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+
+ tf->a_block_start->time = getEventTime(tf);
+
+ {
+ guint64 lEventNSec;
+ LttTime lTimeOffset;
+ /* End time more precise */
+ lEventNSec = ((double)
+ (tf->a_block_end->cycle_count - tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+ //g_assert(lEventNSec >= 0);
+ lTimeOffset = ltt_time_from_uint64(lEventNSec);
+ tf->a_block_end->time = ltt_time_add(tf->a_block_start->time, lTimeOffset);
+ }
+
+
+ //g_debug("precalculating cycles end for block %i", whichBlock);
+
+#if 0
+ /* put back pointer at the beginning */
+ tf->count = 0;
+ tf->pre_cycle_count = 0;
+ tf->cur_cycle_count = 0;
+ tf->which_event = 1;
+ tf->cur_event_pos = tf->buffer;//the beginning of the block, block start ev
+ tf->cur_heart_beat_number = 0;
+ tf->last_heartbeat = NULL;
+#endif //0
+ /* recalculate the cycles per nsec, with now more precise start and end time
+ */
getCyclePerNsec(tf);
+ tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+
+
tf->current_event_time = getEventTime(tf);
tf->prev_event_time.tv_sec = 0;
tf->prev_event_time.tv_nsec = 0;
+ tf->count = 0;
+
+ tf->overflow_nsec = (-((double)tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+
}
/*****************************************************************************
int skipEvent(LttTracefile * t)
{
- int evId, err;
+ int evId;
void * evData;
LttEventType * evT;
LttField * rootFld;
evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId);
- if(evT) rootFld = evT->root_field;
+ if(likely(evT)) rootFld = evT->root_field;
else return ERANGE;
- if(rootFld){
+ if(likely(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){
+ if(likely((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;
evT->latest_event = t->which_event;
//the next event is in the next block
- if(evId == TRACE_BLOCK_END){
+ if(unlikely(evId == TRACE_BLOCK_END)){
t->cur_event_pos = t->buffer + t->block_size;
}else{
t->which_event++;
return 0;
}
+
/*****************************************************************************
*Function name
* getCyclePerNsec : calculate cycles per nsec for current block
+ * MD: should have tracefile_read the whole block, so we know the
+ * total of cycles in it before being called.
*Input Params
* t : tracefile
****************************************************************************/
void getCyclePerNsec(LttTracefile * t)
{
LttTime lBufTotalTime; /* Total time for this buffer */
- LttCycleCount lBufTotalNSec; /* Total time for this buffer in nsecs */
- LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */
+ double lBufTotalNSec; /* Total time for this buffer in nsecs */
+ double lBufTotalCycle;/* Total cycles for this buffer */
/* Calculate the total time for this buffer */
lBufTotalTime = ltt_time_sub(t->a_block_end->time, t->a_block_start->time);
lBufTotalCycle -= t->a_block_start->cycle_count;
/* Convert the total time to nsecs */
- lBufTotalNSec = lBufTotalTime.tv_sec;
- lBufTotalNSec *= NANOSECONDS_PER_SECOND;
- lBufTotalNSec += lBufTotalTime.tv_nsec;
+ lBufTotalNSec = ltt_time_to_double(lBufTotalTime);
- t->cycle_per_nsec = (double)lBufTotalCycle / (double)lBufTotalNSec;
+ t->nsec_per_cycle = (double)lBufTotalNSec / (double)lBufTotalCycle;
+ /* Pre-multiply one overflow (2^32 cycles) by nsec_per_cycle */
+ t->one_overflow_nsec = t->nsec_per_cycle * (double)0x100000000ULL;
+
+ /* See : http://www.azillionmonkeys.com/qed/adiv.html */
+ // precalculate the reciprocal, so divisions will be really fast.
+ // 2^32-1 == 0xFFFFFFFFULL
+ //{
+ // double int_res = lBufTotalCycle/lBufTotalNSec;
+ // t->cycles_per_nsec_reciprocal =
+ // ((0xFFFF+int_res)/int_res);
+ //}
+
}
/****************************************************************************
*Function name
* getEventTime : obtain the time of an event
+ * NOTE : this function _really_ is on critical path.
*Input params
* tf : tracefile
*Return value
* LttTime : the time of the event
****************************************************************************/
-LttTime getEventTime(LttTracefile * tf)
+static inline LttTime getEventTime(LttTracefile * tf)
{
LttTime time;
LttCycleCount cycle_count; // cycle count for the current event
- LttCycleCount lEventTotalCycle; // Total cycles from start for event
- double lEventNSec; // Total usecs from start for event
+ //LttCycleCount lEventTotalCycle; // Total cycles from start for event
+ gint64 lEventNSec; // Total nsecs from start for event
LttTime lTimeOffset; // Time offset in struct LttTime
guint16 evId;
- gint64 nanoSec, tmpCycleCount = (((guint64)1)<<32);
evId = *(guint16 *)tf->cur_event_pos;
- if(evId == TRACE_BLOCK_START){
- tf->count = 0;
- tf->pre_cycle_count = 0;
- tf->cur_cycle_count = tf->a_block_start->cycle_count;
- return tf->a_block_start->time;
- }else if(evId == TRACE_BLOCK_END){
- tf->count = 0;
- tf->pre_cycle_count = 0;
- tf->cur_cycle_count = tf->a_block_end->cycle_count;
- return tf->a_block_end->time;
- }
+ //if(unlikely(evId == TRACE_BLOCK_START)){
+ // tf->count = 0;
+ // tf->pre_cycle_count = 0;
+ // tf->cur_cycle_count = tf->a_block_start->cycle_count;
+ // return tf->a_block_start->time;
+ //}//else if(unlikely(evId == TRACE_BLOCK_END)){
+ //tf->count = 0;
+ //tf->pre_cycle_count = 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
+
+
+
+ //if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++;
+ //if(unlikely(delta_count < 0)) {
+ // tf->count++; //increment wrap count
+ // keep in mind that delta_count is negative here.
+ // res_delta_count = delta_count + 0x100000000ULL ;
+ //} else
+ // res_delta_count = (LttCycleCount)delta_count;
+
+ //cycle_count += (LttCycleCount)tf->count << 32;
+
+ //FIXME (MD)
+ // if(tf->cur_heart_beat_number > tf->count)
+ // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32;
+
+ //tf->cur_cycle_count = tf->cur_cycle_count + res_delta_count;
+ //
+ //
+ // Total cycle counter of the event.
+ //tf->cur_cycle_count = cycle_count | ((LttCycleCount)tf->count << 32);
+
+ //g_debug("cur cycle count %llu", tf->cur_cycle_count);
+
+ // Total number of cycles since the beginning of the block
+ //lEventTotalCycle = tf->cur_cycle_count
+ // - tf->a_block_start->cycle_count;
+
+
+
+#if 0
+ // Calculate total time in cycles from start of buffer for this event
cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE);
- if(cycle_count < tf->pre_cycle_count)tf->count++;
+ if(unlikely(cycle_count < tf->pre_cycle_count)) tf->count++;
tf->pre_cycle_count = cycle_count;
- cycle_count += tmpCycleCount * tf->count;
+ cycle_count += (LttCycleCount)tf->count << 32;
- if(tf->cur_heart_beat_number > tf->count)
- cycle_count += tmpCycleCount * (tf->cur_heart_beat_number - tf->count);
+ //FIXME (MD)
+ // if(tf->cur_heart_beat_number > tf->count)
+ // cycle_count += (tf->cur_heart_beat_number - tf->count) << 32;
tf->cur_cycle_count = cycle_count;
lEventTotalCycle = cycle_count;
lEventTotalCycle -= tf->a_block_start->cycle_count;
-
+#endif //0
// Convert it to nsecs
- lEventNSec = lEventTotalCycle / tf->cycle_per_nsec;
- nanoSec = lEventNSec;
-
+ //lEventNSec = (double)lEventTotalCycle * (double)tf->nsec_per_cycle;
+ //lEventNSec = (tf->cycles_per_nsec_reciprocal * lEventTotalCycle) >> 16;
+
// Determine offset in struct LttTime
- lTimeOffset.tv_nsec = nanoSec % NANOSECONDS_PER_SECOND;
- lTimeOffset.tv_sec = nanoSec / NANOSECONDS_PER_SECOND;
+ //lTimeOffset = ltt_time_from_double(lEventNSec);
+ //
+ // We do not substract block start cycle count here, it has already been done
+ // on the overflow_nsec
+ // The result should never be negative, because the cycle count of
+ // the event following the block start should be >= the previous one.
+
+ /* keep the overflow count correct. The heartbeat event makes sure
+ * that we do not miss an overflow.*/
+
+ cycle_count = (LttCycleCount)*(guint32 *)(tf->cur_event_pos + EVENT_ID_SIZE);
+ //g_debug("event cycle count %llu", cycle_count);
+ //
+ //gint64 delta_count = (gint64)(cycle_count - tf->pre_cycle_count);
+ //LttCycleCount res_delta_count;
+ gboolean comp_count = cycle_count < tf->pre_cycle_count;
+ tf->pre_cycle_count = cycle_count;
+
+ if(unlikely(comp_count)) {
+ /* Wrapped */
+ tf->overflow_nsec += tf->one_overflow_nsec;
+ tf->count++; //increment overflow count
+ }
+ if(unlikely(evId == TRACE_BLOCK_START)) {
+ lEventNSec = 0;
+ } else if(unlikely(evId == TRACE_BLOCK_END)) {
+ lEventNSec = ((double)
+ (tf->a_block_end->cycle_count - tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+ }
+ /* heartbeat cycle counter is only numheartbeat<<32, not meaningful
+ */
+#if 0
+ else if(unlikely(evId == TRACE_TIME_HEARTBEAT)) {
+
+ tf->last_heartbeat = (TimeHeartbeat*)(tf->cur_event_pos+EVENT_HEADER_SIZE);
+ lEventNSec = ((double)(tf->last_heartbeat->cycle_count
+ - tf->a_block_start->cycle_count)
+ * tf->nsec_per_cycle);
+ }
+#endif //0
+ else {
+
+ lEventNSec = (gint64)((double)cycle_count * tf->nsec_per_cycle)
+ +tf->overflow_nsec;
+ }
+
+ //g_assert(lEventNSec >= 0);
+ lTimeOffset = ltt_time_from_uint64(lEventNSec);
+
time = ltt_time_add(tf->a_block_start->time, lTimeOffset);
return time;
LttField * rootFld = evT->root_field;
// rootFld->base_address = evD;
- if(rootFld)
+ if(likely(rootFld))
rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t);
}
* int : size of the field
****************************************************************************/
-int getFieldtypeSize(LttTracefile * t, LttEventType * evT, int offsetRoot,
- int offsetParent, LttField * fld, void *evD, LttTrace *trace)
+static inline gint getFieldtypeSize(LttTracefile * t,
+ LttEventType * evT, gint offsetRoot,
+ gint offsetParent, LttField * fld, void *evD, LttTrace *trace)
{
- int size, size1, element_number, i, offset1, offset2;
+ gint size, size1, element_number, i, offset1, offset2;
LttType * type = fld->field_type;
- if(t){
- if(evT->latest_block==t->which_block && evT->latest_event==t->which_event){
- return fld->field_size;
- }
- }
-
- if(fld->field_fixed == 1){
- if(fld == evT->root_field) return fld->field_size;
- }
-
- if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY &&
- type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){
- if(fld->field_fixed == -1){
- size = (int) ltt_type_size(trace, type);
- fld->field_fixed = 1;
- }else size = fld->field_size;
-
- }else if(type->type_class == LTT_ARRAY){
- element_number = (int) type->element_number;
- if(fld->field_fixed == -1){
- size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL, trace);
- if(size == 0){ //has string or sequence
- fld->field_fixed = 0;
- }else{
- fld->field_fixed = 1;
- size *= element_number;
- }
- }else if(fld->field_fixed == 0){// has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += getFieldtypeSize(t, evT, offsetRoot+size,size,
- fld->child[0], evD+size, trace);
- }
- }else size = fld->field_size;
-
- }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;
- }else{//0: sequence
- element_number = getIntNumber(size1,evD);
- type->element_number = element_number;
- if(fld->element_size > 0){
- size = element_number * fld->element_size;
- }else{//sequence has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1,
- fld->child[0], evD+size+size1, trace);
- }
+ if(unlikely(t && evT->latest_block==t->which_block &&
+ evT->latest_event==t->which_event)){
+ size = fld->field_size;
+ goto end_getFieldtypeSize;
+ } else {
+ /* This likely has been tested with gcov : half of them.. */
+ if(unlikely(fld->field_fixed == 1)){
+ /* tested : none */
+ if(unlikely(fld == evT->root_field)) {
+ size = fld->field_size;
+ goto end_getFieldtypeSize;
}
- size += size1;
}
- }else if(type->type_class == LTT_STRING){
- size = 0;
- if(fld->field_fixed == -1){
- fld->field_fixed = 0;
- }else{//0: string
- size = strlen((char*)evD) + 1; //include end : '\0'
+ /* From gcov profiling : half string, half struct, can we gain something
+ * from that ? (Mathieu) */
+ switch(type->type_class) {
+ case LTT_ARRAY:
+ element_number = (int) type->element_number;
+ if(fld->field_fixed == -1){
+ size = getFieldtypeSize(t, evT, offsetRoot,
+ 0,fld->child[0], NULL, trace);
+ if(size == 0){ //has string or sequence
+ fld->field_fixed = 0;
+ }else{
+ fld->field_fixed = 1;
+ size *= element_number;
+ }
+ }else if(fld->field_fixed == 0){// has string or sequence
+ size = 0;
+ for(i=0;i<element_number;i++){
+ size += getFieldtypeSize(t, evT, offsetRoot+size,size,
+ fld->child[0], evD+size, trace);
+ }
+ }else size = fld->field_size;
+ if(unlikely(!evD)){
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }
+
+ break;
+
+ case 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;
+ }else{//0: sequence
+ element_number = getIntNumber(size1,evD);
+ type->element_number = element_number;
+ if(fld->element_size > 0){
+ size = element_number * fld->element_size;
+ }else{//sequence has string or sequence
+ size = 0;
+ for(i=0;i<element_number;i++){
+ size += getFieldtypeSize(t, evT, offsetRoot+size+size1,size+size1,
+ fld->child[0], evD+size+size1, trace);
+ }
+ }
+ size += size1;
+ }
+ if(unlikely(!evD)){
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }
+
+ break;
+
+ case LTT_STRING:
+ size = 0;
+ if(fld->field_fixed == -1){
+ fld->field_fixed = 0;
+ }else{//0: string
+ /* Hope my implementation is faster than strlen (Mathieu) */
+ char *ptr=(char*)evD;
+ size = 1;
+ /* from gcov : many many strings are empty, make it the common case.*/
+ while(unlikely(*ptr != '\0')) { size++; ptr++; }
+ //size = ptr - (char*)evD + 1; //include end : '\0'
+ }
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+
+ break;
+
+ case LTT_STRUCT:
+ element_number = (int) type->element_number;
+ size = 0;
+ /* tested with gcov */
+ if(unlikely(fld->field_fixed == -1)){
+ offset1 = offsetRoot;
+ offset2 = 0;
+ for(i=0;i<element_number;i++){
+ size1=getFieldtypeSize(t, evT,offset1,offset2,
+ fld->child[i], NULL, trace);
+ if(likely(size1 > 0 && size >= 0)){
+ size += size1;
+ if(likely(offset1 >= 0)) offset1 += size1;
+ offset2 += size1;
+ }else{
+ size = -1;
+ offset1 = -1;
+ offset2 = -1;
+ }
+ }
+ if(unlikely(size == -1)){
+ fld->field_fixed = 0;
+ size = 0;
+ }else fld->field_fixed = 1;
+ }else if(likely(fld->field_fixed == 0)){
+ offset1 = offsetRoot;
+ offset2 = 0;
+ for(i=0;unlikely(i<element_number);i++){
+ size=getFieldtypeSize(t,evT,offset1,offset2,
+ fld->child[i],evD+offset2, trace);
+ offset1 += size;
+ offset2 += size;
+ }
+ size = offset2;
+ }else size = fld->field_size;
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ break;
+
+ default:
+ if(unlikely(fld->field_fixed == -1)){
+ size = (int) ltt_type_size(trace, type);
+ fld->field_fixed = 1;
+ }else size = fld->field_size;
+ if(unlikely(!evD)){
+ fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
+ fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
+ }
+ break;
}
-
- }else if(type->type_class == LTT_STRUCT){
- element_number = (int) type->element_number;
- size = 0;
- if(fld->field_fixed == -1){
- offset1 = offsetRoot;
- offset2 = 0;
- for(i=0;i<element_number;i++){
- size1=getFieldtypeSize(t, evT,offset1,offset2, fld->child[i], NULL, trace);
- if(size1 > 0 && size >= 0){
- size += size1;
- if(offset1 >= 0) offset1 += size1;
- offset2 += size1;
- }else{
- size = -1;
- offset1 = -1;
- offset2 = -1;
- }
- }
- if(size == -1){
- fld->field_fixed = 0;
- size = 0;
- }else fld->field_fixed = 1;
- }else if(fld->field_fixed == 0){
- offset1 = offsetRoot;
- offset2 = 0;
- for(i=0;i<element_number;i++){
- size=getFieldtypeSize(t,evT,offset1,offset2,fld->child[i],evD+offset2, trace);
- offset1 += size;
- offset2 += size;
- }
- size = offset2;
- }else size = fld->field_size;
}
fld->offset_root = offsetRoot;
fld->offset_parent = offsetParent;
- if(!evD){
- fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
- fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
- }
fld->field_size = size;
+end_getFieldtypeSize:
+
return size;
}
* size : the size of the integer
* evD : the event data
*Return value
- * int : an integer
+ * gint64 : a 64 bits integer
****************************************************************************/
-int getIntNumber(int size, void *evD)
+gint64 getIntNumber(int size, void *evD)
{
gint64 i;
+
+ switch(size) {
+ case 1: i = *(gint8 *)evD; break;
+ case 2: i = *(gint16 *)evD; break;
+ case 4: i = *(gint32 *)evD; break;
+ case 8: i = *(gint64 *)evD; break;
+ default: i = *(gint64 *)evD;
+ g_critical("getIntNumber : integer size %d unknown", size);
+ break;
+ }
+
+#if 0
if(size == 1) i = *(gint8 *)evD;
else if(size == 2) i = *(gint16 *)evD;
else if(size == 4) i = *(gint32 *)evD;
else if(size == 8) i = *(gint64 *)evD;
-
- return (int) i;
+#endif //0
+
+ return (gint64)i;
}
/*****************************************************************************
return s->trace_start;
}
+
+LttTracefile *ltt_tracefile_new()
+{
+ return g_new(LttTracefile, 1);
+}
+
+void ltt_tracefile_destroy(LttTracefile *tf)
+{
+ g_free(tf);
+}
+
+void ltt_tracefile_copy(LttTracefile *dest, const LttTracefile *src)
+{
+ *dest = *src;
+}
+
projects / lttv.git / blobdiff