+/* This file is part of the Linux Trace Toolkit viewer
+ * 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
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ * MA 02111-1307, USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
#include <stdio.h>
#include <fcntl.h>
+#include <string.h>
+#include <dirent.h>
#include <sys/stat.h>
#include <sys/types.h>
-#include <linux/errno.h>
+#include <errno.h>
+#include <unistd.h>
+#include <math.h>
+#include <glib.h>
+
+// For realpath
+#include <limits.h>
+#include <stdlib.h>
+
-#include "LTTTypes.h"
#include "parser.h"
-#include <ltt/tracefile.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>
+#include <ltt/ltt-types.h>
+
+#ifndef g_open
+#define g_open open
+#endif
+
+
+#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)
+
+#define g_close close
+
+/* obtain the time of an event */
+
+static inline LttTime getEventTime(LttTracefile * tf);
-//#include "default.h" //yxx test
/* set the offset of the fields belonging to the event,
need the information of the archecture */
-void setFieldsOffset(ltt_tracefile * t, ltt_eventtype *evT, void *evD);
+void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace *t);
/* get the size of the field type according to the archtecture's
size and endian type(info of the archecture) */
-int getFieldtypeSize(ltt_tracefile * t, ltt_eventtype * evT, int offsetRoot,
- int offsetParent, ltt_field * fld, void * evD );
+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);
-int readBlock(ltt_tracefile * tf, int whichBlock);
+int readFile(int fd, void * buf, size_t size, gchar * mesg);
+int readBlock(LttTracefile * tf, int whichBlock);
/* calculate cycles per nsec for current block */
-void getCyclePerNsec(ltt_tracefile * t);
-
-/* functions to release the memory occupied by the tables of a tracefile */
-void freeKey (gpointer key, gpointer value, gpointer user_data);
-void freeValue (gpointer key, gpointer value, gpointer user_data);
-void freeFacilityNameTable (gpointer key, gpointer value, gpointer user_data);
+void getCyclePerNsec(LttTracefile * t);
/* reinitialize the info of the block which is already in the buffer */
-void updateTracefile(ltt_tracefile * tf);
+void updateTracefile(LttTracefile * tf);
/* go to the next event */
-int skipEvent(ltt_tracefile * t);
-
-/* compare two time (ltt_time), 0:t1=t2, -1:t1<t2, 1:t1>t2 */
-int timecmp(ltt_time * t1, ltt_time * t2);
-
-/* get an integer number */
-int getIntNumber(int size1, void *evD);
-
-
-/* Time operation macros for ltt_time (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)
+int skipEvent(LttTracefile * t);
+/* Functions to parse system.xml file (using glib xml parser) */
+static void parser_start_element (GMarkupParseContext __UNUSED__ *context,
+ const gchar *element_name,
+ const gchar **attribute_names,
+ const gchar **attribute_values,
+ gpointer user_data,
+ GError **error)
+{
+ int i=0;
+ LttSystemDescription* des = (LttSystemDescription* )user_data;
+ if(strcmp("system", element_name)){
+ *error = g_error_new(G_MARKUP_ERROR,
+ G_LOG_LEVEL_WARNING,
+ "This is not system.xml file");
+ return;
+ }
+
+ while(attribute_names[i]){
+ if(strcmp("node_name", attribute_names[i])==0){
+ des->node_name = g_strdup(attribute_values[i]);
+ }else if(strcmp("domainname", attribute_names[i])==0){
+ des->domain_name = g_strdup(attribute_values[i]);
+ }else if(strcmp("cpu", attribute_names[i])==0){
+ des->nb_cpu = atoi(attribute_values[i]);
+ }else if(strcmp("arch_size", attribute_names[i])==0){
+ if(strcmp(attribute_values[i],"LP32") == 0) des->size = LTT_LP32;
+ else if(strcmp(attribute_values[i],"ILP32") == 0) des->size = LTT_ILP32;
+ else if(strcmp(attribute_values[i],"LP64") == 0) des->size = LTT_LP64;
+ else if(strcmp(attribute_values[i],"ILP64") == 0) des->size = LTT_ILP64;
+ else if(strcmp(attribute_values[i],"UNKNOWN") == 0) des->size = LTT_UNKNOWN;
+ }else if(strcmp("endian", attribute_names[i])==0){
+ if(strcmp(attribute_values[i],"LITTLE_ENDIAN") == 0)
+ des->endian = LTT_LITTLE_ENDIAN;
+ else if(strcmp(attribute_values[i],"BIG_ENDIAN") == 0)
+ des->endian = LTT_BIG_ENDIAN;
+ }else if(strcmp("kernel_name", attribute_names[i])==0){
+ des->kernel_name = g_strdup(attribute_values[i]);
+ }else if(strcmp("kernel_release", attribute_names[i])==0){
+ des->kernel_release = g_strdup(attribute_values[i]);
+ }else if(strcmp("kernel_version", attribute_names[i])==0){
+ des->kernel_version = g_strdup(attribute_values[i]);
+ }else if(strcmp("machine", attribute_names[i])==0){
+ des->machine = g_strdup(attribute_values[i]);
+ }else if(strcmp("processor", attribute_names[i])==0){
+ des->processor = g_strdup(attribute_values[i]);
+ }else if(strcmp("hardware_platform", attribute_names[i])==0){
+ des->hardware_platform = g_strdup(attribute_values[i]);
+ }else if(strcmp("operating_system", attribute_names[i])==0){
+ des->operating_system = g_strdup(attribute_values[i]);
+ }else if(strcmp("ltt_major_version", attribute_names[i])==0){
+ des->ltt_major_version = atoi(attribute_values[i]);
+ }else if(strcmp("ltt_minor_version", attribute_names[i])==0){
+ des->ltt_minor_version = atoi(attribute_values[i]);
+ }else if(strcmp("ltt_block_size", attribute_names[i])==0){
+ des->ltt_block_size = atoi(attribute_values[i]);
+ }else{
+ *error = g_error_new(G_MARKUP_ERROR,
+ G_LOG_LEVEL_WARNING,
+ "Not a valid attribute");
+ return;
+ }
+ i++;
+ }
+}
+
+static void parser_characters (GMarkupParseContext __UNUSED__ *context,
+ const gchar *text,
+ gsize __UNUSED__ text_len,
+ gpointer user_data,
+ GError __UNUSED__ **error)
+{
+ LttSystemDescription* des = (LttSystemDescription* )user_data;
+ des->description = g_strdup(text);
+}
+
/*****************************************************************************
*Function name
- * ltt_tracefile_open : open a trace file, construct a ltt_tracefile
+ * ltt_tracefile_open : open a trace file, construct a LttTracefile
*Input params
- * pathname : path name of the trace file
+ * t : the trace containing the tracefile
+ * fileName : path name of the trace file
*Return value
- * ltt_tracefile * : the structure represents the opened trace file
+ * : a pointer to a tracefile
****************************************************************************/
-ltt_tracefile *ltt_tracefile_open(char * fileName)
+LttTracefile* ltt_tracefile_open(LttTrace * t, gchar * fileName)
{
- ltt_tracefile * tf;
- struct stat lTDFStat; /* Trace data file status */
- trace_header_event *trace_header;
- block_header a_block_header;
+ LttTracefile * tf;
+ struct stat lTDFStat; /* Trace data file status */
- tf = g_new(ltt_tracefile, 1);
+ tf = g_new(LttTracefile, 1);
//open the file
- tf->fd = open(fileName, O_RDONLY, 0);
+ tf->name = g_strdup(fileName);
+ tf->trace = t;
+ tf->fd = g_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);
+ g_close(tf->fd);
+ g_free(tf);
+ return NULL;
}
// Is the file large enough to contain a trace
- if(lTDFStat.st_size < sizeof(block_header) + sizeof(trace_header_event)){
- g_error("The input data file %s does not contain a trace\n", fileName);
+ 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);
+ g_close(tf->fd);
+ g_free(tf);
+ return NULL;
}
//store the size of the file
tf->file_size = lTDFStat.st_size;
-
- //read the first block header
- if(readFile(tf->fd,(void*)&a_block_header, sizeof(block_header),
- "Unable to read block header"))
- exit(1);
-
- //read the trace header event
- trace_header = g_new(trace_header_event, 1);
- if(readFile(tf->fd,(void*)trace_header, sizeof(trace_header_event),
- "Unable to read trace header event"))
- exit(1);
-
- tf->block_number = tf->file_size / trace_header->buffer_size;
- tf->trace_header = (trace_header_event *)trace_header;
+ tf->block_size = t->system_description->ltt_block_size;
+ tf->block_number = tf->file_size / tf->block_size;
+ tf->which_block = 0;
//allocate memory to contain the info of a block
- tf->buffer = (void *) g_new(char, trace_header->buffer_size);
+ tf->buffer = (void *) g_new(gchar, t->system_description->ltt_block_size);
- //read the last block, get the trace end time
- if(readBlock(tf,tf->block_number)) exit(1);
- tf->end_time = tf->a_block_footer->time;
+ //read the first block
+ if(readBlock(tf,1)) exit(1);
- //read the first block, get the trace start time
- if(tf->block_number != 1)
- if(readBlock(tf,1)) exit(1);
- tf->start_time = tf->a_block_header->time;
+ return tf;
+}
- //get local machine's data type size and endian type
- getDataEndianType(&(tf->my_arch_size), &(tf->my_arch_endian));
- //initialize all tables
- tf->eventtype_number = 0;
- tf->facility_number = 0;
- tf->index_facility = g_hash_table_new (g_int_hash, g_int_equal);
- tf->facility_name = g_hash_table_new (g_str_hash, g_str_equal);
- tf->base_id_name = g_hash_table_new (g_str_hash, g_int_equal);
- tf->eventtype_event_id = g_ptr_array_new();
+/*****************************************************************************
+ *Open control and per cpu tracefiles
+ ****************************************************************************/
- return tf;
+void ltt_tracefile_open_cpu(LttTrace *t, gchar * tracefile_name)
+{
+ LttTracefile * tf;
+ tf = ltt_tracefile_open(t,tracefile_name);
+ if(!tf) return;
+ t->per_cpu_tracefile_number++;
+ g_ptr_array_add(t->per_cpu_tracefiles, tf);
+}
+
+gint ltt_tracefile_open_control(LttTrace *t, gchar * control_name)
+{
+ LttTracefile * tf;
+ LttEvent ev;
+ LttFacility * f;
+ void * pos;
+ FacilityLoad fLoad;
+ unsigned int i;
+
+ tf = ltt_tracefile_open(t,control_name);
+ 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){
+ if(!ltt_tracefile_read(tf,&ev)) return 0; // end of file
+
+ if(ev.event_id == TRACE_FACILITY_LOAD){
+ pos = ev.data;
+ fLoad.name = (gchar*)pos;
+ fLoad.checksum = *(LttChecksum*)(pos + strlen(fLoad.name));
+ fLoad.base_code = *(guint32 *)(pos + strlen(fLoad.name) + sizeof(LttChecksum));
+
+ for(i=0;i<t->facility_number;i++){
+ f = (LttFacility*)g_ptr_array_index(t->facilities,i);
+ if(strcmp(f->name,fLoad.name)==0 && fLoad.checksum==f->checksum){
+ f->base_id = fLoad.base_code;
+ break;
+ }
+ }
+ 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){
+ break;
+ }else {
+ g_warning("Not valid facilities trace file");
+ return -1;
+ }
+ }
+ }
+ return 0;
}
/*****************************************************************************
*Function name
- * ltt_tracefile_close: close a trace file, release all facilities if their
- * usage count == 0 when close_facilities is true
+ * ltt_tracefile_close: close a trace file,
*Input params
* t : tracefile which will be closed
- * close_facilities : bool to show if the facilities need to be released
- *Return value
- * int : ????
****************************************************************************/
-int ltt_tracefile_close(ltt_tracefile *t, int close_facilities)
+void ltt_tracefile_close(LttTracefile *t)
{
- //free index_facility table
- g_hash_table_foreach (t->index_facility, freeKey, NULL);
- g_hash_table_destroy(t->index_facility);
-
- //free base_id_facility table
- g_hash_table_foreach (t->base_id_name, freeValue, NULL);
- g_hash_table_destroy(t->base_id_name);
-
- //free eventtype_event_id array
- g_ptr_array_free (t->eventtype_event_id, TRUE);
-
- //free facility_name table
- g_hash_table_foreach (t->facility_name, freeFacilityNameTable,
- GINT_TO_POINTER(1));
- g_hash_table_destroy(t->facility_name);
-
- //free tracefile structure
- g_free(t->trace_header);
+ g_free(t->name);
g_free(t->buffer);
+ close(t->fd);
g_free(t);
- return 0;
}
+
/*****************************************************************************
- * functions to release the memory occupied by the tables of a tracefile
+ *Get system information
****************************************************************************/
-
-void freeKey (gpointer key, gpointer value, gpointer user_data)
+gint getSystemInfo(LttSystemDescription* des, gchar * pathname)
{
- g_free(key);
-}
+ int fd;
+ GIOChannel *iochan;
+ gchar *buf = NULL;
+ gsize length;
+
+ GMarkupParseContext * context;
+ GError * error = NULL;
+ GMarkupParser markup_parser =
+ {
+ parser_start_element,
+ NULL,
+ parser_characters,
+ NULL, /* passthrough */
+ NULL /* error */
+ };
+
+ fd = g_open(pathname, O_RDONLY, 0);
+ if(fd == -1){
+ g_warning("Can not open file : %s\n", pathname);
+ return -1;
+ }
+
+ iochan = g_io_channel_unix_new(fd);
+
+ context = g_markup_parse_context_new(&markup_parser, 0, des,NULL);
+
+ //while(fgets(buf,DIR_NAME_SIZE, fp) != NULL){
+ while(g_io_channel_read_line(iochan, &buf, &length, NULL, &error)
+ != G_IO_STATUS_EOF) {
-void freeValue (gpointer key, gpointer value, gpointer user_data)
-{
- g_free(value);
-}
+ if(error != NULL) {
+ g_warning("Can not read xml file: \n%s\n", error->message);
+ g_error_free(error);
+ }
+ if(!g_markup_parse_context_parse(context, buf, length, &error)){
+ 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);
-void freeFacilityNameTable (gpointer key, gpointer value, gpointer user_data)
-{
- ltt_facility * fac = (ltt_facility*) value;
- fac->usage_count--;
- if(GPOINTER_TO_INT(user_data) != 0)
- ltt_facility_close(fac);
+ g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */
+ if(error != NULL) {
+ g_warning("Can not close file: \n%s\n", error->message);
+ g_error_free(error);
+ }
+
+ close(fd);
+ return -1;
+ }
+ }
+ g_markup_parse_context_free(context);
+
+ g_io_channel_shutdown(iochan, FALSE, &error); /* No flush */
+ if(error != NULL) {
+ g_warning("Can not close file: \n%s\n", error->message);
+ g_error_free(error);
+ }
+
+ g_close(fd);
+
+ g_free(buf);
+ return 0;
}
/*****************************************************************************
- *Function name
- * ltt_tracefile_facility_add: increases the facility usage count and also
- * specifies the base of the numeric range
- * assigned to the event types in the facility
- * for this tracefile
- *Input params
- * t : tracefile that the facility will be added
- * f : facility that will be attached to the tracefile
- * base_id : the id for the first event of the facility in the
- * trace file
- *Return value
- * int : ????
+ *The following functions get facility/tracefile information
****************************************************************************/
-int ltt_tracefile_facility_add(ltt_tracefile *t,ltt_facility *f,int base_id)
+gint getFacilityInfo(LttTrace *t, gchar* eventdefs)
{
- int * id, *index;
- int i, j, k;
- ltt_eventtype * et;
- gpointer tmpPtr;
+ GDir * dir;
+ const gchar * name;
+ unsigned int i,j;
+ LttFacility * f;
+ LttEventType * et;
+ gchar fullname[DIR_NAME_SIZE];
+ GError * error = NULL;
+
+ dir = g_dir_open(eventdefs, 0, &error);
+
+ if(error != NULL) {
+ g_warning("Can not open directory: %s, %s\n", eventdefs, error->message);
+ g_error_free(error);
+ return -1;
+ }
- //increase the facility usage count
- f->usage_count++;
- t->eventtype_number += f->event_number;
- t->facility_number++;
+ while((name = g_dir_read_name(dir)) != NULL){
+ if(!g_pattern_match_simple("*.xml", name)) continue;
+ strcpy(fullname,eventdefs);
+ strcat(fullname,name);
+ ltt_facility_open(t,fullname);
+ }
+ g_dir_close(dir);
+
+ for(j=0;j<t->facility_number;j++){
+ f = (LttFacility*)g_ptr_array_index(t->facilities, j);
+ for(i=0; i<f->event_number; i++){
+ et = f->events[i];
+ setFieldsOffset(NULL, et, NULL, t);
+ }
+ }
+ return 0;
+}
- //insert the facility into index_facility table
- id = g_new(int,1);
- *id = t->facility_number;
- g_hash_table_insert(t->index_facility, (gpointer)id,(gpointer)f);
+gint getControlFileInfo(LttTrace *t, gchar* control)
+{
+ GDir * dir;
+ const gchar *name;
+ gchar fullname[DIR_NAME_SIZE];
+ GError * error = NULL;
- //insert facility name into table: base_id_name
- id = g_new(int,1);
- *id = base_id;
- g_hash_table_insert(t->base_id_name, (gpointer)(f->name), (gpointer)id);
+ dir = g_dir_open(control, 0, &error);
- //insert facility name into table: facility_name
- g_hash_table_insert(t->facility_name, (gpointer)(f->name), (gpointer)f);
-
- //insert eventtype into the array: eventtype_event_id
- j = base_id + f->event_number;
- k = t->eventtype_event_id->len;
- if(j > t->eventtype_event_id->len){
- for(i=0; i < j - k; i++){
- tmpPtr = (gpointer)g_new(ptr_wrap, 1);
- g_ptr_array_add(t->eventtype_event_id,tmpPtr);
- }
+ if(error != NULL) {
+ g_warning("Can not open directory: %s, %s\n", control, error->message);
+ g_error_free(error);
+ return -1;
}
- //initialize the unused elements: NULL
- if(j-k > f->event_number){
- for(i=k; i<base_id; i++){
- tmpPtr = g_ptr_array_index(t->eventtype_event_id, i);
- ((ptr_wrap*)tmpPtr)->ptr = NULL;
+ while((name = g_dir_read_name(dir)) != NULL){
+ if(strcmp(name,"facilities") != 0 &&
+ strcmp(name,"interrupts") != 0 &&
+ strcmp(name,"processes") != 0) continue;
+
+ strcpy(fullname,control);
+ strcat(fullname,name);
+ if(ltt_tracefile_open_control(t,fullname)) {
+ g_dir_close(dir);
+ return -1;
}
- }
+ }
+ g_dir_close(dir);
+ return 0;
+}
- //initialize the elements with the eventtypes belonging to the facility
- for(i=0; i<f->event_number; i++){
- tmpPtr = g_ptr_array_index(t->eventtype_event_id, base_id + i);
- ((ptr_wrap*)tmpPtr)->ptr = (gpointer)(f->events[i]);
- }
-
- //update offset
- for(i=0; i<f->event_number; i++){
- et = f->events[i];
- setFieldsOffset(t, et, NULL);
- }
+gint getCpuFileInfo(LttTrace *t, char* cpu)
+{
+ GDir * dir;
+ const gchar * name;
+ gchar fullname[DIR_NAME_SIZE];
+ GError * error = NULL;
+
+ dir = g_dir_open(cpu, 0, &error);
+ if(error != NULL) {
+ g_warning("Can not open directory: %s, %s\n", cpu, error->message);
+ g_error_free(error);
+ return -1;
+ }
+ while((name = g_dir_read_name(dir)) != NULL){
+ if(strcmp(name,".svn") != 0){ /* . and .. already excluded */
+ strcpy(fullname,cpu);
+ strcat(fullname,name);
+ ltt_tracefile_open_cpu(t,fullname);
+ }else continue;
+ }
+ g_dir_close(dir);
return 0;
}
/*****************************************************************************
- * The following functions used to query the info of the machine where the
- * tracefile was generated. A tracefile may be queried for its architecture
- * type(e.g.,"i386", "powerpc", "powerpcle", "s390", "s390x"), its architecture
- * variant(e.g., "att" versus "sun" for m68k), its operating system (e.g.,
- * "linux","bsd"), its generic architecture, and the machine identity (e.g.,
- * system host name). All character strings belong to the associated tracefile
- * and are freed when it is closed
- ****************************************************************************/
+ *A trace is specified as a pathname to the directory containing all the
+ *associated data (control tracefiles, per cpu tracefiles, event
+ *descriptions...).
+ *
+ *When a trace is closed, all the associated facilities, types and fields
+ *are released as well.
+ */
-uint32_t ltt_tracefile_arch_type(ltt_tracefile *t)
-{
- return t->trace_header->arch_type;
-}
-uint32_t ltt_tracefile_arch_variant(ltt_tracefile *t)
+/****************************************************************************
+ * get_absolute_pathname
+ *
+ * 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 gchar *pathname, gchar * abs_pathname)
{
- return t->trace_header->arch_variant;
+ abs_pathname[0] = '\0';
+
+ if ( realpath (pathname, abs_pathname) != NULL)
+ return;
+ else
+ {
+ /* error, return the original path unmodified */
+ strcpy(abs_pathname, pathname);
+ return;
+ }
+ return;
}
-ltt_arch_size ltt_tracefile_arch_size(ltt_tracefile *t)
+LttTrace *ltt_trace_open(const gchar *pathname)
{
- return t->trace_header->arch_size;
+ LttTrace * t;
+ LttSystemDescription * sys_description;
+ gchar eventdefs[DIR_NAME_SIZE];
+ gchar info[DIR_NAME_SIZE];
+ gchar control[DIR_NAME_SIZE];
+ gchar cpu[DIR_NAME_SIZE];
+ gchar tmp[DIR_NAME_SIZE];
+ gchar abs_path[DIR_NAME_SIZE];
+ 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);
+ if(!has_slash)strcat(eventdefs,"/");
+ strcat(eventdefs,"eventdefs/");
+
+ strcpy(info,abs_path);
+ if(!has_slash)strcat(info,"/");
+ strcat(info,"info/");
+
+ strcpy(control,abs_path);
+ if(!has_slash)strcat(control,"/");
+ strcat(control,"control/");
+
+ strcpy(cpu,abs_path);
+ if(!has_slash)strcat(cpu,"/");
+ strcat(cpu,"cpu/");
+
+ //new trace
+ 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;
+ t->per_cpu_tracefile_number = 0;
+ t->system_description = sys_description;
+ t->control_tracefiles = g_ptr_array_new();
+ t->per_cpu_tracefiles = g_ptr_array_new();
+ t->facilities = g_ptr_array_new();
+ //getDataEndianType(&(t->my_arch_size), &(t->my_arch_endian));
+
+ //get system description
+ strcpy(tmp,info);
+ strcat(tmp,"system.xml");
+ 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;
+ }
+
+ /* Set the reverse byte order between trace and reader */
+ if(sys_description->endian == LTT_LITTLE_ENDIAN
+ && G_BYTE_ORDER != G_LITTLE_ENDIAN) {
+ t->reverse_byte_order = 1;
+ } else if(sys_description->endian == LTT_BIG_ENDIAN
+ && G_BYTE_ORDER != G_BIG_ENDIAN) {
+ t->reverse_byte_order = 1;
+ } else t->reverse_byte_order = 0;
+
+ //get facilities info
+ 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
+ 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;
}
-ltt_arch_endian ltt_tracefile_arch_endian(ltt_tracefile *t)
+char * ltt_trace_name(LttTrace *t)
{
- return t->trace_header->arch_endian;
-}
+ return t->pathname;
+}
-uint32_t ltt_tracefile_system_type(ltt_tracefile *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 t->trace_header->system_type;
+ return ltt_trace_open(self->pathname);
}
-char *ltt_tracefile_system_name(ltt_tracefile *t)
+void ltt_trace_close(LttTrace *t)
{
- return t->trace_header->system_name;
+ unsigned int i;
+ LttTracefile * tf;
+ LttFacility * f;
+
+ g_free(t->pathname);
+
+ //free system_description
+ g_free(t->system_description->description);
+ g_free(t->system_description->node_name);
+ g_free(t->system_description->domain_name);
+ g_free(t->system_description->kernel_name);
+ g_free(t->system_description->kernel_release);
+ g_free(t->system_description->kernel_version);
+ g_free(t->system_description->machine);
+ g_free(t->system_description->processor);
+ g_free(t->system_description->hardware_platform);
+ g_free(t->system_description->operating_system);
+ g_free(t->system_description);
+
+ //free control_tracefiles
+ for(i=0;i<t->control_tracefile_number;i++){
+ tf = (LttTracefile*)g_ptr_array_index(t->control_tracefiles,i);
+ ltt_tracefile_close(tf);
+ }
+ g_ptr_array_free(t->control_tracefiles, TRUE);
+
+ //free per_cpu_tracefiles
+ for(i=0;i<t->per_cpu_tracefile_number;i++){
+ tf = (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles,i);
+ ltt_tracefile_close(tf);
+ }
+ g_ptr_array_free(t->per_cpu_tracefiles, TRUE);
+
+ //free facilities
+ for(i=0;i<t->facility_number;i++){
+ f = (LttFacility*)g_ptr_array_index(t->facilities,i);
+ ltt_facility_close(f);
+ }
+ g_ptr_array_free(t->facilities, TRUE);
+
+ g_free(t);
+
+ g_blow_chunks();
}
+
/*****************************************************************************
- *Function name
- * ltt_tracefile_cpu_number: get the number of the cpu
- *Input params
- * t : tracefile
- *Return value
- * unsigned : the number of cpu the system has
+ *Get the system description of the trace
****************************************************************************/
-unsigned ltt_tracefile_cpu_number(ltt_tracefile *t)
+LttSystemDescription *ltt_trace_system_description(LttTrace *t)
{
- return (unsigned)(t->trace_header->cpu_number);
+ return t->system_description;
}
/*****************************************************************************
- *Function name
- * ltt_tracefile_cpu_single: does the tracefile contain events only for a
- * single CPU ?
- *Input params
- * t : tracefile
- *Return value
- * int : 1 for YES, 0 for NO
+ * The following functions discover the facilities of the trace
****************************************************************************/
-int ltt_tracefile_cpu_single(ltt_tracefile *t)
+unsigned ltt_trace_facility_number(LttTrace *t)
{
- if(t->trace_header->cpu_number_used == 1) return 1;
- else return 0;
+ return (unsigned)(t->facility_number);
+}
+
+LttFacility *ltt_trace_facility_get(LttTrace *t, unsigned i)
+{
+ return (LttFacility*)g_ptr_array_index(t->facilities, i);
}
/*****************************************************************************
*Function name
- * ltt_tracefile_cpu_id: which CPU is contained in the tracefile?
+ * ltt_trace_facility_find : find facilities in the trace
*Input params
- * t : tracefile
+ * t : the trace
+ * name : facility name
+ *Output params
+ * position : position of the facility in the trace
*Return value
- * unsigned : cpu id
+ * : the number of facilities
****************************************************************************/
-unsigned ltt_tracefile_cpu_id(ltt_tracefile *t)
+unsigned ltt_trace_facility_find(LttTrace *t, char *name, unsigned *position)
{
- return (unsigned)(t->trace_header->cpu_id);
+ unsigned int i, count=0;
+ LttFacility * f;
+ for(i=0;i<t->facility_number;i++){
+ f = (LttFacility*)g_ptr_array_index(t->facilities, i);
+ if(strcmp(f->name,name)==0){
+ count++;
+ if(count==1) *position = i;
+ }else{
+ if(count) break;
+ }
+ }
+ return count;
}
/*****************************************************************************
- * The following functions get the times related to the tracefile
+ * Functions to discover all the event types in the trace
****************************************************************************/
-ltt_time ltt_tracefile_time_start(ltt_tracefile *t)
+unsigned ltt_trace_eventtype_number(LttTrace *t)
{
- return t->start_time;
+ unsigned int i;
+ unsigned count = 0;
+ unsigned int num = t->facility_number;
+ LttFacility * f;
+
+ for(i=0;i<num;i++){
+ f = (LttFacility*)g_ptr_array_index(t->facilities, i);
+ count += f->event_number;
+ }
+ return count;
}
-ltt_time ltt_tracefile_time_end(ltt_tracefile *t)
+/* 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)
{
- return t->end_time;
+ 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++;
+ }
+ }
+
+ return facility;
}
-ltt_time ltt_tracefile_duration(ltt_tracefile *t)
+LttEventType *ltt_trace_eventtype_get(LttTrace *t, unsigned evId)
{
- ltt_time T;
- TimeSub(T, t->end_time, t->start_time);
- return T;
+ LttEventType *event_type;
+
+ LttFacility * f;
+ f = ltt_trace_facility_by_id(t,evId);
+
+ if(unlikely(!f)) event_type = NULL;
+ else event_type = f->events[evId - f->base_id];
+
+ return event_type;
}
/*****************************************************************************
- * The following functions discover the facilities added to the tracefile
+ *There is one "per cpu" tracefile for each CPU, numbered from 0 to
+ *the maximum number of CPU in the system. When the number of CPU installed
+ *is less than the maximum, some positions are unused. There are also a
+ *number of "control" tracefiles (facilities, interrupts...).
****************************************************************************/
+unsigned ltt_trace_control_tracefile_number(LttTrace *t)
+{
+ return t->control_tracefile_number;
+}
-unsigned ltt_tracefile_facility_number(ltt_tracefile *t)
+unsigned ltt_trace_per_cpu_tracefile_number(LttTrace *t)
{
- return (unsigned)(t->facility_number);
+ return t->per_cpu_tracefile_number;
}
-ltt_facility *ltt_tracefile_facility_get(ltt_tracefile *t, unsigned i)
+/*****************************************************************************
+ *It is possible to search for the tracefiles by name or by CPU position.
+ *The index within the tracefiles of the same type is returned if found
+ *and a negative value otherwise.
+ ****************************************************************************/
+
+int ltt_trace_control_tracefile_find(LttTrace *t, const gchar *name)
{
- gconstpointer ptr = (gconstpointer)(&i);
- if(i<=0 || i> t->facility_number)return NULL;
- return (ltt_facility*)g_hash_table_lookup(t->index_facility,ptr);
+ LttTracefile * tracefile;
+ 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;
+ }
+ if(i == t->control_tracefile_number) return -1;
+ return i;
}
-ltt_facility *ltt_tracefile_facility_get_by_name(ltt_tracefile *t,char *name)
+/* 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)
{
- ltt_facility * fac;
- fac=(ltt_facility*)g_hash_table_lookup(t->facility_name,(gconstpointer)name);
- return fac;
+ LttTracefile * tracefile;
+ 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(i == t->per_cpu_tracefile_number) return -1;
+ return i;
}
/*****************************************************************************
- * The following functions to discover all the event types in the facilities
- * added to the tracefile. The event type integer id, unique for the trace,
- * is used
+ *Get a specific tracefile
****************************************************************************/
-unsigned ltt_tracefile_eventtype_number(ltt_tracefile *t)
+LttTracefile *ltt_trace_control_tracefile_get(LttTrace *t, unsigned i)
{
- return t->eventtype_number;
+ return (LttTracefile*)g_ptr_array_index(t->control_tracefiles, i);
}
-ltt_eventtype *ltt_tracefile_eventtype_get(ltt_tracefile *t, unsigned evId)
+LttTracefile *ltt_trace_per_cpu_tracefile_get(LttTrace *t, unsigned i)
{
- ptr_wrap * ptr;
- ptr = (ptr_wrap *)g_ptr_array_index(t->eventtype_event_id, (gint)evId);
- return (ltt_eventtype *)(ptr->ptr);
+ return (LttTracefile*)g_ptr_array_index(t->per_cpu_tracefiles, i);
}
/*****************************************************************************
- *Function name
- * ltt_tracefile_eventtype_id
- * : given an event type, find its unique id within
- * the tracefile
- *Input params
- * t : tracefile
- * et : event type
- *Return value
- * unsigned : id of the event type in the tracefile
+ * Get the start time and end time of the trace
****************************************************************************/
-unsigned ltt_tracefile_eventtype_id(ltt_tracefile *t, ltt_eventtype *et)
+void ltt_trace_time_span_get(LttTrace *t, LttTime *start, LttTime *end)
{
- int *id;
- char *name = et->facility->name;
-
- id = (int*)g_hash_table_lookup(t->base_id_name, (gconstpointer)name);
- if(!id)return 0;
- return (unsigned)(*id + et->index);
+ LttTime startSmall, startTmp, endBig, endTmp;
+ unsigned 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 = ltt_get_time(t->reverse_byte_order, &tf->a_block_start->time);
+ readBlock(tf,tf->block_number);
+ endTmp = ltt_get_time(t->reverse_byte_order, &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 = ltt_get_time(t->reverse_byte_order, &tf->a_block_start->time);
+ readBlock(tf,tf->block_number);
+ endTmp = ltt_get_time(t->reverse_byte_order, &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;
+ }
+
+ if(start != NULL) *start = startSmall;
+ if(end != NULL) *end = endBig;
}
+
/*****************************************************************************
- *Function name
- * ltt_tracefile_eventtype_root_field
- * : get the root field associated with an event type
- * for the tracefile
- *Input params
- * t : tracefile
- * id : event id
- *Return value
- * ltt_field * : root field of the event
+ *Get the name of a tracefile
+ ****************************************************************************/
+
+char *ltt_tracefile_name(LttTracefile *tf)
+{
+ return tf->name;
+}
+
+/*****************************************************************************
+ * Get the number of blocks in the tracefile
****************************************************************************/
-ltt_field *ltt_tracefile_eventtype_root_field(ltt_tracefile *t, unsigned id)
+unsigned ltt_tracefile_block_number(LttTracefile *tf)
{
- ltt_eventtype * et;
- et = ltt_tracefile_eventtype_get(t, id);
- if(!et) return NULL;
- return et->root_field;
+ return tf->block_number;
}
/*****************************************************************************
*Input params
* t : tracefile
* time : criteria of the time
- *Return value
- * int : error code
- * ENOENT, end of the file
- * EINVAL, lseek fail
- * EIO, can not read from the file
****************************************************************************/
+void ltt_tracefile_find_time_block(LttTracefile *t, LttTime time,
+ int start_block, int end_block)
+{
+ int err, tmp_block, s, e;
+ int headTime;
+ int tailTime;
+
+ err=readBlock(t,start_block);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ if(start_block == end_block)return;
+
+ tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_end->time), time);
+ if(tailTime >= 0) return;
+
+ err=readBlock(t,end_block);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ if(start_block+1 == end_block)return;
+
+ headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_start->time), time);
+ if(headTime <= 0 ) return;
+
+ tmp_block = (end_block + start_block)/2;
+ err=readBlock(t,tmp_block);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+
+ headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_start->time), time);
+ tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_end->time), time);
+ if(headTime <= 0 && tailTime >= 0) return;
+
+ if(headTime > 0){
+ s = start_block + 1;
+ e = tmp_block - 1;
+ if(s <= e)
+ ltt_tracefile_find_time_block(t, time, s, e);
+ else return;
+ }
+
+ if(tailTime < 0){
+ s = tmp_block + 1;
+ e = end_block - 1;
+ if(s <= e)
+ ltt_tracefile_find_time_block(t, time, s, e);
+ else return;
+ }
+}
-int ltt_tracefile_seek_time(ltt_tracefile *t, ltt_time time)
+void ltt_tracefile_backward_find_time_block(LttTracefile *t, LttTime time)
+{
+ int t_time, h_time, err;
+ err=readBlock(t,t->which_block-1);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ h_time = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_start->time), time);
+ t_time = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_end->time), time);
+ if(h_time == 0){
+ int tmp;
+ if(t->which_block == 1) return;
+ err=readBlock(t,t->which_block-1);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ tmp = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_end->time), time);
+ if(tmp == 0) return ltt_tracefile_seek_time(t, time);
+ err=readBlock(t,t->which_block+1);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ }else if(h_time > 0){
+ ltt_tracefile_find_time_block(t, time, 1, t->which_block);
+ return ltt_tracefile_seek_time(t, time) ;
+ }else{
+ if(t_time >= 0) return ltt_tracefile_seek_time(t, time);
+ err=readBlock(t,t->which_block+1);
+ if(err) g_error("Can not read tracefile: %s\n", t->name);
+ }
+}
+
+void ltt_tracefile_seek_time(LttTracefile *t, LttTime time)
{
int err;
- ltt_time lttTime;
- int headTime = timecmp(&(t->a_block_header->time), &time);
- int tailTime = timecmp(&(t->a_block_footer->time), &time);
-
+ LttTime lttTime;
+ int headTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &t->a_block_start->time), time);
+ int tailTime = ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &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_block != 1 && t->which_event != 0) ||
- (t->which_block == 1 && t->which_event != 1) ) &&
- ((t->prev_event_time.tv_sec==0 && t->prev_event_time.tv_nsec==0) ||
- timecmp(&t->prev_event_time, &time) >= 0 ) ){
- updateTracefile(t);
- return ltt_tracefile_seek_time(t, time);
- }
- }else if(err < 0){
- err = t->which_block;
- if(ltt_tracefile_read(t) == NULL) return ENOENT;
- if(t->which_block == err)
- return ltt_tracefile_seek_time(t,time);
- }
- }else if(headTime > 0){
+ if(ltt_time_compare(ltt_get_time(t->trace->reverse_byte_order,
+ &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 || ltt_time_compare(t->prev_event_time,time)<0){
+ return;
+ }else{
+ updateTracefile(t);
+ return ltt_tracefile_seek_time(t, time);
+ }
+ }else if(err < 0){
+ while(1){
+ if(ltt_tracefile_read(t,&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( (t->prev_block_end_time.tv_sec == 0 &&
- t->prev_block_end_time.tv_nsec == 0 ) ||
- timecmp(&(t->prev_block_end_time),&time) > 0 ){
- err=readBlock(t,t->which_block-1);
- if(err) return err;
- return ltt_tracefile_seek_time(t, time) ;
+ if(ltt_time_compare(t->prev_block_end_time, time) >= 0 ||
+ (t->prev_block_end_time.tv_sec == 0 &&
+ t->prev_block_end_time.tv_nsec == 0 )){
+ ltt_tracefile_backward_find_time_block(t, time);
}else{
updateTracefile(t);
}
}
- }else if(tailTime <= 0){
+ }else if(tailTime < 0){
if(t->which_block != t->block_number){
- err=readBlock(t,t->which_block+1);
- if(err) return err;
- }else return ENOENT;
- if(tailTime < 0) return ltt_tracefile_seek_time(t, time);
- }else if(headTime == 0){
- updateTracefile(t);
+ ltt_tracefile_find_time_block(t, time, t->which_block+1, t->block_number);
+ return ltt_tracefile_seek_time(t, time);
+ }else {
+ t->cur_event_pos = t->buffer + t->block_size;
+ g_print("End of file\n");
+ return;
+ }
+ }else if(tailTime == 0){
+ 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;
+ t->prev_event_time.tv_nsec = 0;
+ return;
}
- return 0;
+}
+
+/*****************************************************************************
+ * 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, const LttEventPosition *ep)
+{
+ //if we are at the right place, just return
+ if(likely(t->which_block == ep->block_num && t->which_event == ep->event_num))
+ return;
+
+ 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;
+
+ 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 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;
}
/*****************************************************************************
*Function name
- * ltt_tracefile_read : read the next event
+ * ltt_tracefile_read : read the current event, set the pointer to the next
*Input params
* t : tracefile
*Return value
- * ltt_event * : an event to be processed
+ * LttEvent * : an event to be processed
****************************************************************************/
-ltt_event *ltt_tracefile_read(ltt_tracefile *t)
+LttEvent *ltt_tracefile_read(LttTracefile *t, LttEvent *event)
{
- ltt_event * lttEvent = (ltt_event *)g_new(ltt_event, 1);
- ltt_eventtype * evT;
- ltt_facility * fac;
+ int err;
+
+ 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(unlikely(err))g_error("Can not read tracefile");
+ }
+
+ event->event_id = ltt_get_uint16(t->trace->reverse_byte_order, 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 = ltt_get_uint32(t->trace->reverse_byte_order, 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 */
- //update the fields of the current event and go to the next event
- if(skipEvent(t)) return NULL;
- t->current_event_time = getEventTime(t);
- lttEvent->event_id = (int)(*(uint8_t *)(t->cur_event_pos));
- evT = ltt_tracefile_eventtype_get(t, (unsigned)lttEvent->event_id);
- fac = evT->facility;
- // if(evT->index == TRACE_EV_HEARTBEAT && strcmp(fac->name, "default")==0)
- // t->cur_heart_beat_number++;
- lttEvent->cycle_count=*(uint32_t*)(t->cur_event_pos + EVENT_ID_SIZE);
- lttEvent->tracefile = t;
- lttEvent->data = t->cur_event_pos + EVENT_HEADER_SIZE;
+ //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 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
* readBlock : read a block from the file
* EIO : can not read from the file
****************************************************************************/
-int readBlock(ltt_tracefile * tf, int whichBlock)
+int readBlock(LttTracefile * tf, int whichBlock)
{
off_t nbBytes;
- uint32_t lostSize;
+ guint32 lostSize;
- if(whichBlock - tf->which_block == 1 && tf->which_block != 0){
- tf->prev_block_end_time = tf->a_block_footer->time;
+ /* 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 = ltt_get_time(tf->trace->reverse_byte_order,
+ &tf->a_block_end->time);
+ tf->prev_event_time = ltt_get_time(tf->trace->reverse_byte_order,
+ &tf->a_block_end->time);
}else{
tf->prev_block_end_time.tv_sec = 0;
tf->prev_block_end_time.tv_nsec = 0;
+ tf->prev_event_time.tv_sec = 0;
+ tf->prev_event_time.tv_nsec = 0;
}
- tf->prev_event_time.tv_sec = 0;
- tf->prev_event_time.tv_nsec = 0;
- nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->trace_header->buffer_size),
- SEEK_SET);
- if(nbBytes == -1) return EINVAL;
+ nbBytes=lseek(tf->fd,(off_t)((whichBlock-1)*tf->block_size), SEEK_SET);
+ if(unlikely(nbBytes == -1)) return EINVAL;
- if(readFile(tf->fd,tf->buffer,tf->trace_header->buffer_size,
- "Unable to read a block")) return EIO;
+ 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);
+ lostSize = *(guint32 *)(tf->buffer + tf->block_size - sizeof(guint32));
+ tf->a_block_end=(BlockEnd *)(tf->buffer + tf->block_size
+ - sizeof(guint32) - lostSize - sizeof(BlockEnd));
+ tf->last_event_pos = tf->buffer + tf->block_size -
+ sizeof(guint32) - lostSize
+ - sizeof(BlockEnd) - EVENT_HEADER_SIZE;
- tf->a_block_header=(block_header *) tf->buffer;
- lostSize = *(uint32_t*)(tf->buffer + tf->trace_header->buffer_size
- - sizeof(uint32_t));
- /* skip event ID and time delta to get the address of the block foot */
- tf->a_block_footer=(block_footer *)(tf->buffer+tf->trace_header->buffer_size
- -lostSize+sizeof(uint8_t)+sizeof(uint32_t));
tf->which_block = whichBlock;
- tf->which_event = 0;
- tf->first_event_pos = tf->buffer + sizeof(block_header);
- if(tf->which_block == 1){
- tf->which_event++;
- tf->first_event_pos += sizeof(trace_header_event);
- }
- tf->cur_event_pos = tf->first_event_pos;
- tf->current_event_time = tf->a_block_header->time;
+ 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 = ltt_get_uint32(tf->trace->reverse_byte_order, tf->cur_event_pos + EVENT_ID_SIZE);
+
getCyclePerNsec(tf);
+ tf->overflow_nsec =
+ (-((double)
+ (ltt_get_uint64(tf->trace->reverse_byte_order,
+ &tf->a_block_start->cycle_count)&0xFFFFFFFF))
+ * tf->nsec_per_cycle);
+
+ tf->current_event_time = getEventTime(tf);
+
return 0;
}
* tf : tracefile
****************************************************************************/
-void updateTracefile(ltt_tracefile * tf)
+void updateTracefile(LttTracefile * tf)
{
- if(tf->which_block == 1)tf->which_event = 1;
- else tf->which_event = 0;
- tf->cur_event_pos = tf->first_event_pos;
- tf->current_event_time = tf->a_block_header->time;
+ tf->which_event = 1;
+ tf->cur_event_pos = tf->buffer;
+ tf->current_event_time = getEventTime(tf);
tf->cur_heart_beat_number = 0;
tf->prev_event_time.tv_sec = 0;
tf->prev_event_time.tv_nsec = 0;
+ tf->count = 0;
+
+ tf->overflow_nsec =
+ (-((double)ltt_get_uint64(tf->trace->reverse_byte_order,
+ &tf->a_block_start->cycle_count))
+ * tf->nsec_per_cycle);
+
}
/*****************************************************************************
* t : tracefile
*return value
* 0 : success
- * EINVAL : lseek fail
- * EIO : can not read from the file
- * ENOENT : end of file
* ERANGE : event id is out of range
****************************************************************************/
-int skipEvent(ltt_tracefile * t)
+int skipEvent(LttTracefile * t)
{
- int evId, err;
+ int evId;
void * evData;
- ltt_eventtype * evT;
- ltt_field * rootFld;
+ LttEventType * evT;
+ LttField * rootFld;
- evId = (int)(*(uint8_t *)(t->cur_event_pos));
+ evId = ltt_get_uint16(t->trace->reverse_byte_order, t->cur_event_pos);
evData = t->cur_event_pos + EVENT_HEADER_SIZE;
- evT = ltt_tracefile_eventtype_get(t,(unsigned)evId);
- if(evT) rootFld = evT->root_field;
+ evT = ltt_trace_eventtype_get(t->trace,(unsigned)evId);
+
+ if(likely(evT)) rootFld = evT->root_field;
else return ERANGE;
-
- t->prev_event_time = getEventTime(t);
- //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->cur_event_pos += EVENT_HEADER_SIZE + rootFld->field_size;
-
+ 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(t->which_event == t->a_block_header->event_count - 1){
- if(t->which_block == t->block_number) return ENOENT;
- err = readBlock(t, t->which_block + 1);
- if(err) return err;
+ if(unlikely(evId == TRACE_BLOCK_END)){
+ t->cur_event_pos = t->buffer + t->block_size;
}else{
+ t->cur_cycle_count = ltt_get_uint32(t->trace->reverse_byte_order,
+ t->cur_event_pos + EVENT_ID_SIZE);
t->which_event++;
+ t->current_event_time = getEventTime(t);
}
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(ltt_tracefile * t)
+void getCyclePerNsec(LttTracefile * t)
{
- ltt_time lBufTotalTime; /* Total time for this buffer */
- ltt_cycle_count lBufTotalNSec; /* Total time for this buffer in nsecs */
- ltt_cycle_count lBufTotalCycle;/* Total cycles for this buffer */
+ LttTime lBufTotalTime; /* Total time for this buffer */
+ double lBufTotalNSec; /* Total time for this buffer in nsecs */
+ LttCycleCount lBufTotalCycle;/* Total cycles for this buffer */
/* Calculate the total time for this buffer */
- TimeSub(lBufTotalTime,t->a_block_footer->time, t->a_block_header->time);
+ lBufTotalTime = ltt_time_sub(
+ ltt_get_time(t->trace->reverse_byte_order, &t->a_block_end->time),
+ ltt_get_time(t->trace->reverse_byte_order, &t->a_block_start->time));
/* Calculate the total cycles for this bufffer */
- lBufTotalCycle = t->a_block_footer->cycle_count
- - t->a_block_header->cycle_count;
+ lBufTotalCycle = ltt_get_uint64(t->trace->reverse_byte_order,
+ &t->a_block_end->cycle_count);
+ lBufTotalCycle -= ltt_get_uint64(t->trace->reverse_byte_order,
+ &t->a_block_start->cycle_count);
- /* Convert the total time to nsecs */
- lBufTotalNSec = lBufTotalTime.tv_sec * 1000000000 + lBufTotalTime.tv_nsec;
+ /* Convert the total time to double */
+ 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;
+
}
/****************************************************************************
*Function name
* getEventTime : obtain the time of an event
+ * NOTE : this function _really_ is on critical path.
*Input params
* tf : tracefile
*Return value
- * ltt_time : the time of the event
+ * LttTime : the time of the event
****************************************************************************/
-ltt_time getEventTime(ltt_tracefile * tf)
+static inline LttTime getEventTime(LttTracefile * tf)
{
- ltt_time time;
- ltt_cycle_count cycle_count; /* cycle count for the current event */
- ltt_cycle_count lEventTotalCycle; /* Total cycles from start for event */
- double lEventNSec; /* Total usecs from start for event */
- ltt_time lTimeOffset; /* Time offset in struct ltt_time */
+ LttTime time;
+ LttCycleCount cycle_count; // cycle count for the current 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;
+
+ evId = ltt_get_uint16(tf->trace->reverse_byte_order,
+ tf->cur_event_pos);
- /* Calculate total time in cycles from start of buffer for this event */
- cycle_count = *(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_header->cycle_count & 0xFFFFFFFF);
-
- /* Convert it to nsecs */
- lEventNSec = lEventTotalCycle / tf->cycle_per_nsec;
+ cycle_count = ltt_get_uint32(tf->trace->reverse_byte_order,
+ tf->cur_event_pos + EVENT_ID_SIZE);
+
+ gboolean comp_count = cycle_count < tf->pre_cycle_count;
+
+ tf->pre_cycle_count = cycle_count;
- /* Determine offset in struct ltt_time */
- lTimeOffset.tv_nsec = (long)lEventNSec % 1000000000;
- lTimeOffset.tv_sec = (long)lEventNSec / 1000000000;
+ if(unlikely(comp_count)) {
+ /* Overflow */
+ tf->overflow_nsec += tf->one_overflow_nsec;
+ tf->count++; //increment overflow count
+ }
- TimeAdd(time, tf->a_block_header->time, lTimeOffset);
+ if(unlikely(evId == TRACE_BLOCK_START)) {
+ lEventNSec = 0;
+ } else if(unlikely(evId == TRACE_BLOCK_END)) {
+ lEventNSec = ((double)
+ (ltt_get_uint64(tf->trace->reverse_byte_order,
+ &tf->a_block_end->cycle_count)
+ - ltt_get_uint64(tf->trace->reverse_byte_order,
+ &tf->a_block_start->cycle_count))
+ * tf->nsec_per_cycle);
+ }
+#if 0
+ /* If you want to make heart beat a special case and use their own 64 bits
+ * TSC, activate this.
+ */
+ 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;
+ }
+ lTimeOffset = ltt_time_from_uint64(lEventNSec);
+
+ time = ltt_time_add(ltt_get_time(tf->trace->reverse_byte_order,
+ &tf->a_block_start->time), lTimeOffset);
+
return time;
}
* evD : event data, it may be NULL
****************************************************************************/
-void setFieldsOffset(ltt_tracefile * t, ltt_eventtype * evT, void * evD)
+void setFieldsOffset(LttTracefile *tf,LttEventType *evT,void *evD,LttTrace* t)
{
- ltt_field * rootFld = evT->root_field;
+ LttField * rootFld = evT->root_field;
// rootFld->base_address = evD;
- rootFld->field_size = getFieldtypeSize(t, evT, 0,0,rootFld, evD);
+ if(likely(rootFld))
+ rootFld->field_size = getFieldtypeSize(tf, evT, 0,0,rootFld, evD,t);
}
/*****************************************************************************
* int : size of the field
****************************************************************************/
-int getFieldtypeSize(ltt_tracefile * t, ltt_eventtype * evT, int offsetRoot,
- int offsetParent, ltt_field * fld, void * evD)
-{
- int size, size1, element_number, i, offset1, offset2;
- ltt_type * type = fld->field_type;
-
- 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(t, 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);
- 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);
- }
- }else size = fld->field_size;
-
- }else if(type->type_class == LTT_SEQUENCE){
- size1 = (int) ltt_type_size(t, type);
- if(fld->field_fixed == -1){
- fld->field_fixed = 0;
- size = getFieldtypeSize(t, evT, offsetRoot,0,fld->child[0], NULL);
- 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);
- }
+static inline gint getFieldtypeSize(LttTracefile * t,
+ LttEventType * evT, gint offsetRoot,
+ gint offsetParent, LttField * fld, void *evD, LttTrace *trace)
+{
+ gint size, size1, element_number, i, offset1, offset2;
+ LttType * type = fld->field_type;
+
+ 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 = sizeof((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(t->trace->reverse_byte_order,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);
- 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);
- 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;
}
-/*****************************************************************************
- *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(ltt_time * t1, ltt_time * t2)
-{
- ltt_time 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;
-}
/*****************************************************************************
*Function name
* 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(gboolean reverse_byte_order, int size, void *evD)
{
- int64_t i;
- if(size == 1) i = *(int8_t *)evD;
- else if(size == 2) i = *(int16_t *)evD;
- else if(size == 4) i = *(int32_t *)evD;
- else if(size == 8) i = *(int64_t *)evD;
-
- return (int) i;
-}
+ gint64 i;
+
+ switch(size) {
+ case 1: i = *((gint8*)evD); break;
+ case 2: i = ltt_get_int16(reverse_byte_order, evD); break;
+ case 4: i = ltt_get_int32(reverse_byte_order, evD); break;
+ case 8: i = ltt_get_int64(reverse_byte_order, evD); break;
+ default: i = ltt_get_int64(reverse_byte_order, evD);
+ g_critical("getIntNumber : integer size %d unknown", size);
+ break;
+ }
+ return i;
+}
+#if 0
/*****************************************************************************
*Function name
* getDataEndianType : get the data type size and endian type of the local
* endian : endian type, little or big
****************************************************************************/
-void getDataEndianType(ltt_arch_size * size, ltt_arch_endian * endian)
+void getDataEndianType(LttArchSize * size, LttArchEndian * endian)
{
int i = 1;
char c = (char) i;
*size = LTT_ILP64;
else *size = LTT_UNKNOWN;
}
+#endif //0
+/* get the node name of the system */
+
+char * ltt_trace_system_description_node_name (LttSystemDescription * s)
+{
+ return s->node_name;
+}
+
+
+/* get the domain name of the system */
+
+char * ltt_trace_system_description_domain_name (LttSystemDescription * s)
+{
+ return s->domain_name;
+}
+
+
+/* get the description of the system */
+
+char * ltt_trace_system_description_description (LttSystemDescription * s)
+{
+ return s->description;
+}
+
+
+/* get the start time of the trace */
+
+LttTime ltt_trace_system_description_trace_start_time(LttSystemDescription *s)
+{
+ 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