/* This file is part of the Linux Trace Toolkit viewer
- * Copyright (C) 2003-2004 Xiangxiu Yang
+ * Copyright (C) 2007 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;
+ * Complete rewrite from the original version made by XangXiu Yang.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License Version 2.1 as published by the Free Software Foundation.
*
- * This program is distributed in the hope that it will be useful,
+ * This library 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.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser 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.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; 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 <string.h>
-#include <stdlib.h>
#include <glib.h>
-#include <asm/types.h>
-#include <byteswap.h>
-
-#include "parser.h"
-#include <ltt/ltt.h>
-#include "ltt-private.h"
#include <ltt/event.h>
-#include <ltt/trace.h>
#include <ltt/ltt-types.h>
-
-
-
-void compute_fields_offsets(LttTracefile *tf, LttField *field, off_t *offset,
- void *root);
-
-
-
-
-LttEvent *ltt_event_new()
-{
- return g_new(LttEvent, 1);
-}
-
-void ltt_event_destroy(LttEvent *event)
-{
- g_free(event);
-}
-
-
-#if 0
-/* Use get_field_type_size instead */
-/*****************************************************************************
- *Function name
- * ltt_event_refresh_fields : refresh fields of an event
- *Input params
- * offsetRoot : offset from the root
- * offsetParent : offset from the parent
- * fld : field
- * evD : event data
- * reverse_byte_order : 1 or 0
- *Return value
- * int : size of the field
- ****************************************************************************/
-
-int ltt_event_refresh_fields(int offsetRoot,int offsetParent,
- LttField * fld, void *evD, gboolean reverse_byte_order)
-{
- int size, size1, element_number, i, offset1, offset2;
- LttType * type = fld->field_type;
-
- switch(type->type_class) {
- case LTT_ARRAY:
- element_number = (int) type->element_number;
- if(fld->field_fixed == 0){// has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += ltt_event_refresh_fields(offsetRoot+size,size,
- fld->child[0], evD+size, reverse_byte_order);
- }
- }else size = fld->field_size;
- break;
-
- case LTT_SEQUENCE:
- size1 = fld->sequ_number_size;
- element_number = getIntNumber(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 += ltt_event_refresh_fields(offsetRoot+size+size1,size+size1,
- fld->child[0], evD+size+size1, reverse_byte_order);
- }
- size += size1;
- }
- break;
-
- case LTT_STRING:
- size = strlen((gchar*)evD) + 1; //include end : '\0'
- break;
-
- case LTT_STRUCT:
- element_number = (int) type->element_number;
- if(fld->field_fixed == 0){
- offset1 = offsetRoot;
- offset2 = 0;
- for(i=0;i<element_number;i++){
- size=ltt_event_refresh_fields(offset1,offset2,
- fld->child[i],evD+offset2, reverse_byte_order);
- offset1 += size;
- offset2 += size;
- }
- size = offset2;
- }else size = fld->field_size;
- break;
-
- case LTT_UNION:
- size = fld->field_size;
- break;
-
- default:
- size = fld->field_size;
- }
-
-#if 0
- if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY &&
- type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){
- size = fld->field_size;
- }else if(type->type_class == LTT_ARRAY){
- element_number = (int) type->element_number;
- if(fld->field_fixed == 0){// has string or sequence
- size = 0;
- for(i=0;i<element_number;i++){
- size += ltt_event_refresh_fields(offsetRoot+size,size,
- fld->child[0], evD+size);
- }
- }else size = fld->field_size;
- }else if(type->type_class == LTT_SEQUENCE){
- size1 = fld->sequ_number_size;
- 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 += ltt_event_refresh_fields(offsetRoot+size+size1,size+size1,
- fld->child[0], evD+size+size1);
- }
- size += size1;
- }
- }else if(type->type_class == LTT_STRING){
- size = strlen((char*)evD) + 1; //include end : '\0'
- }else if(type->type_class == LTT_STRUCT){
- element_number = (int) type->element_number;
- if(fld->field_fixed == 0){
- offset1 = offsetRoot;
- offset2 = 0;
- for(i=0;i<element_number;i++){
- size=ltt_event_refresh_fields(offset1,offset2,
- fld->child[i],evD+offset2);
- offset1 += size;
- offset2 += size;
- }
- size = offset2;
- }else size = fld->field_size;
- }
-#endif //0
- fld->offset_root = offsetRoot;
- fld->offset_parent = offsetParent;
- fld->fixed_root = (offsetRoot==-1) ? 0 : 1;
- fld->fixed_parent = (offsetParent==-1) ? 0 : 1;
- fld->field_size = size;
-
- return size;
-}
-#endif //0
-
-
-/*****************************************************************************
- *Function name
- * ltt_event_eventtype_id: get event type id
- * (base id + position of the event)
- *Input params
- * e : an instance of an event type
- *Return value
- * unsigned : event type id
- ****************************************************************************/
-
-unsigned ltt_event_eventtype_id(const LttEvent *e)
-{
- return (unsigned) e->event_id;
-}
-
-/*****************************************************************************
- *Function name
- * ltt_event_facility : get the facility of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * LttFacility * : the facility of the event
- ****************************************************************************/
-
-LttFacility *ltt_event_facility(const LttEvent *e)
-{
- LttTrace * trace = e->tracefile->trace;
- unsigned id = e->facility_id;
- LttFacility *facility = ltt_trace_facility_by_id(trace,id);
-
- g_assert(facility->exists);
-
- return facility;
-}
-
-/*****************************************************************************
- *Function name
- * ltt_event_facility_id : get the facility id of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * unsigned : the facility of the event
- ****************************************************************************/
-
-unsigned ltt_event_facility_id(const LttEvent *e)
-{
- return e->facility_id;
-}
-
-/*****************************************************************************
- *Function name
- * ltt_event_eventtype : get the event type of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * LttEventType * : the event type of the event
- ****************************************************************************/
-
-LttEventType *ltt_event_eventtype(const LttEvent *e)
-{
- LttFacility* facility = ltt_event_facility(e);
- if(!facility) return NULL;
- return &g_array_index(facility->events, LttEventType, e->event_id);
-}
-
-
-/*****************************************************************************
- *Function name
- * ltt_event_time : get the time of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * LttTime : the time of the event
- ****************************************************************************/
-
-LttTime ltt_event_time(const LttEvent *e)
-{
- return e->event_time;
-}
-
-/*****************************************************************************
- *Function name
- * ltt_event_time : get the cycle count of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * LttCycleCount : the cycle count of the event
- ****************************************************************************/
-
-LttCycleCount ltt_event_cycle_count(const LttEvent *e)
-{
- return e->tsc;
-}
-
-
+#include <ltt/ltt-private.h>
+#include <ltt/marker.h>
+#include <ltt/marker-field.h>
/*****************************************************************************
*Function name
}
+void ltt_event_position_set(LttEventPosition *ep, LttTracefile *tf,
+ guint block, guint offset, guint64 tsc)
+{
+ ep->tracefile = tf;
+ ep->block = block;
+ ep->offset = offset;
+ ep->tsc = tsc;
+}
+
+
/*****************************************************************************
*Function name
* ltt_event_position : get the event's position
}
/*****************************************************************************
- *Function name
- * ltt_event_cpu_i: get the cpu id where the event happens
- *Input params
- * e : an instance of an event type
- *Return value
- * unsigned : the cpu id
+ * These functions extract data from an event after architecture specific
+ * conversions
****************************************************************************/
-
-unsigned ltt_event_cpu_id(LttEvent *e)
+guint32 ltt_event_get_unsigned(LttEvent *e, struct marker_field *f)
{
- return e->tracefile->cpu_num;
-}
+ gboolean reverse_byte_order;
-/*****************************************************************************
- *Function name
- * ltt_event_data : get the raw data for the event
- *Input params
- * e : an instance of an event type
- *Return value
- * void * : pointer to the raw data for the event
- ****************************************************************************/
-
-void *ltt_event_data(LttEvent *e)
-{
- return e->data;
-}
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
-/*****************************************************************************
- *Function name
- * ltt_event_field_element_number
- * : The number of elements in a sequence field is specific
- * to each event. This function returns the number of
- * elements for an array or sequence field in an event.
- *Input params
- * e : an instance of an event type
- * f : a field of the instance
- *Return value
- * unsigned : the number of elements for an array/sequence field
- ****************************************************************************/
-guint64 ltt_event_field_element_number(LttEvent *e, LttField *f)
-{
- if(f->field_type.type_class != LTT_ARRAY &&
- f->field_type.type_class != LTT_SEQUENCE)
+ switch(f->size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset);
+ return (guint32) x;
+ }
+ break;
+ case 2:
+ return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_unsigned : field size %i unknown", f->size);
return 0;
-
- if(f->field_type.type_class == LTT_ARRAY)
- return f->field_type.size;
- return ltt_event_get_long_unsigned(e, &g_array_index(f->field_type.fields,
- LttField, 0));
+ break;
+ }
}
-/*****************************************************************************
- *Function name
- * ltt_event_field_element_select
- * : Set the currently selected element for a sequence or
- * array field
- * O(1) because of offset array.
- *Input params
- * e : an instance of an event type
- * f : a field of the instance
- * i : the ith element (0, ...)
- *returns : the child field, at the right index, updated.
- ****************************************************************************/
-LttField *ltt_event_field_element_select(LttEvent *e, LttField *f, gulong i)
+gint32 ltt_event_get_int(LttEvent *e, struct marker_field *f)
{
- gulong element_number;
- LttField *field;
- unsigned int k;
- size_t size;
- LttEventType *event_type;
- off_t new_offset;
-
- if(f->field_type.type_class != LTT_ARRAY &&
- f->field_type.type_class != LTT_SEQUENCE)
- return ;
-
- element_number = ltt_event_field_element_number(e,f);
- event_type = ltt_event_eventtype(e);
- /* Sanity check for i : 0..n-1 only, and must be lower or equal element_number
- */
- if(i >= element_number) return;
-
- if(f->field_type.type_class == LTT_ARRAY) {
- field = &g_array_index(f->field_type.fields, LttField, 0);
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
} else {
- field = &g_array_index(f->field_type.fields, LttField, 1);
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
}
- if(field->field_size != 0) {
- if(f->array_offset + (i * field->field_size) == field->offset_root)
- return; /* fixed length child, already at the right offset */
- else
- new_offset = f->array_offset + (i * field->field_size);
- } else {
- /* Var. len. child */
- new_offset = g_array_index(f->dynamic_offsets, off_t, i);
+ switch(f->size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset);
+ return (gint32) x;
+ }
+ break;
+ case 2:
+ return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_int : field size %i unknown", f->size);
+ return 0;
+ break;
}
- compute_fields_offsets(e->tracefile, field, &new_offset, e->data);
-
- return field;
}
-/*****************************************************************************
- * These functions extract data from an event after architecture specific
- * conversions
- ****************************************************************************/
-guint32 ltt_event_get_unsigned(LttEvent *e, LttField *f)
+guint64 ltt_event_get_long_unsigned(LttEvent *e, struct marker_field *f)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- LttTypeEnum t = f->field_type.type_class;
-
- if(f->field_size == 1){
- guint8 x = *(guint8 *)(e->data + f->offset_root);
- return (guint32) x;
- }else if(f->field_size == 2){
- return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
- return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root);
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
}
-#if 0
- else if(f->field_size == 8){
- guint64 x = *(guint64 *)(e->data + f->offset_root);
- if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
- return (unsigned int) (revFlag ? GUINT64_FROM_BE(x): x);
- else
- return (unsigned int) (revFlag ? GUINT64_FROM_LE(x): x);
+
+ switch(f->size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset);
+ return (guint64) x;
+ }
+ break;
+ case 2:
+ return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ return ltt_get_uint64(reverse_byte_order, e->data + f->offset);
+ break;
+ default:
+ g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->size);
+ return 0;
+ break;
}
-#endif //0
- g_critical("ltt_event_get_unsigned : field size %i unknown", f->field_size);
- return 0;
}
-gint32 ltt_event_get_int(LttEvent *e, LttField *f)
+gint64 ltt_event_get_long_int(LttEvent *e, struct marker_field *f)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- if(f->field_size == 1){
- gint8 x = *(gint8 *)(e->data + f->offset_root);
- return (gint32) x;
- }else if(f->field_size == 2){
- return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
- return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset_root);
- }
-#if 0
- else if(f->field_size == 8){
- gint64 x = *(gint64 *)(e->data + f->offset_root);
- if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
- return (int) (revFlag ? GINT64_FROM_BE(x): x);
- else
- return (int) (revFlag ? GINT64_FROM_LE(x): x);
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
}
-#endif //0
- g_critical("ltt_event_get_int : field size %i unknown", f->field_size);
- return 0;
-}
-
-guint64 ltt_event_get_long_unsigned(LttEvent *e, LttField *f)
-{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- LttTypeEnum t = f->field_type.type_class;
-
- if(f->field_size == 1){
- guint8 x = *(guint8 *)(e->data + f->offset_root);
- return (guint64) x;
- }else if(f->field_size == 2){
- return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
- return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 8){
- return ltt_get_uint64(reverse_byte_order, e->data + f->offset_root);
+
+ switch(f->size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset);
+ return (gint64) x;
+ }
+ break;
+ case 2:
+ return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset);
+ break;
+ case 4:
+ return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset);
+ break;
+ case 8:
+ return ltt_get_int64(reverse_byte_order, e->data + f->offset);
+ break;
+ default:
+ g_critical("ltt_event_get_long_int : field size %i unknown", f->size);
+ return 0;
+ break;
}
- g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->field_size);
- return 0;
}
-gint64 ltt_event_get_long_int(LttEvent *e, LttField *f)
+#if 0
+float ltt_event_get_float(LttEvent *e, struct marker_field *f)
{
- //int revFlag = e->tracefile->trace->my_arch_endian ==
- // e->tracefile->trace->system_description->endian ? 0:1;
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- if(f->field_size == 1){
- gint8 x = *(gint8 *)(e->data + f->offset_root);
- return (gint64) x;
- }else if(f->field_size == 2){
- return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
- return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 8){
- return ltt_get_int64(reverse_byte_order, e->data + f->offset_root);
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ g_assert(LTT_HAS_FLOAT(e->tracefile));
+ reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
}
- g_critical("ltt_event_get_long_int : field size %i unknown", f->field_size);
- return 0;
-}
-
-float ltt_event_get_float(LttEvent *e, LttField *f)
-{
- g_assert(LTT_HAS_FLOAT(e->tracefile));
- gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
- g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 4);
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 4);
- if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root);
+ if(reverse_byte_order == 0) return *(float *)(e->data + f->offset);
else{
- void *ptr = e->data + f->offset_root;
+ void *ptr = e->data + f->offset;
guint32 value = bswap_32(*(guint32*)ptr);
return *(float*)&value;
}
}
-double ltt_event_get_double(LttEvent *e, LttField *f)
+double ltt_event_get_double(LttEvent *e, struct marker_field *f)
{
- g_assert(LTT_HAS_FLOAT(e->tracefile));
- gboolean reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
+ gboolean reverse_byte_order;
+ if(unlikely(f->attributes & LTT_ATTRIBUTE_NETWORK_BYTE_ORDER)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ g_assert(LTT_HAS_FLOAT(e->tracefile));
+ reverse_byte_order = LTT_GET_FLOAT_BO(e->tracefile);
+ }
- if(f->field_size == 4)
+ if(f->size == 4)
return ltt_event_get_float(e, f);
- g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 8);
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->size == 8);
- if(reverse_byte_order == 0) return *(double *)(e->data + f->offset_root);
+ if(reverse_byte_order == 0) return *(double *)(e->data + f->offset);
else {
- void *ptr = e->data + f->offset_root;
+ void *ptr = e->data + f->offset;
guint64 value = bswap_64(*(guint64*)ptr);
return *(double*)&value;
}
}
+#endif
/*****************************************************************************
* The string obtained is only valid until the next read from
* the same tracefile.
****************************************************************************/
-char *ltt_event_get_string(LttEvent *e, LttField *f)
-{
- g_assert(f->field_type.type_class == LTT_STRING);
-
- return (gchar*)g_strdup((gchar*)(e->data + f->offset_root));
-}
-
-
-/*****************************************************************************
- *Function name
- * get_field_type_size : set the fixed and dynamic sizes of the field type
- * from the data read.
- *Input params
- * tf : tracefile
- * event_type : event type
- * offset_root : offset from the root
- * offset_parent : offset from the parent
- * field : field
- * data : a pointer to the event data.
- *Returns the field type size.
- ****************************************************************************/
- // TODO
-// Change this function so it uses a *to offset value incrementation, just like
-// genevent-new instead of returning a size. What is of interest here is the
-// offset needed to read each field.
-//
-// Precomputed ones can be returned directly. Otherwise, the field is flagged
-// "VARIABLE OFFSET" and must be computed dynamically. The dynamic processing
-// of an offset takes the last known fixed offset, and then dynamically
-// calculates all variable field offsets from it.
-//
-// After a VARIABLE SIZE element, all fields have a variable offset.
-// Also, is an array or a sequence has variable length child, we must pass
-// through all of them, saving the offsets in the dynamic_offsets array.
-
-#if 0
-size_t get_field_type_size(LttTracefile *tf, LttEventType *event_type,
- off_t offset_root, off_t offset_parent,
- LttField *field, void *data)
+char *ltt_event_get_string(LttEvent *e, struct marker_field *f)
{
- size_t size = 0;
- guint i;
- LttType *type;
- off_t align;
-
- g_assert(field->fixed_root != FIELD_UNKNOWN);
- g_assert(field->fixed_parent != FIELD_UNKNOWN);
- g_assert(field->fixed_size != FIELD_UNKNOWN);
-
- field->offset_root = offset_root;
- field->offset_parent = offset_parent;
-
- type = field->field_type;
-
- switch(type->type_class) {
- case LTT_INT:
- case LTT_UINT:
- case LTT_FLOAT:
- case LTT_ENUM:
- case LTT_POINTER:
- case LTT_LONG:
- case LTT_ULONG:
- case LTT_SIZE_T:
- case LTT_SSIZE_T:
- case LTT_OFF_T:
- g_assert(field->fixed_size == FIELD_FIXED);
- size = field->field_size;
- align = ltt_align(field->offset_root,
- size, event_type->facility->has_alignment);
- field->offset_root += align;
- field->offset_parent += align;
- size += align;
- break;
- case LTT_SEQUENCE:
- {
- /* FIXME : check the type of sequence identifier */
- gint seqnum = ltt_get_uint(LTT_GET_BO(tf),
- field->sequ_number_size,
- data + offset_root);
-
- if(field->child[0]->fixed_size == FIELD_FIXED) {
- size = field->sequ_number_size +
- (seqnum * get_field_type_size(tf, event_type,
- offset_root, offset_parent,
- field->child[0], data));
- } else {
- size += field->sequ_number_size;
- for(i=0;i<seqnum;i++) {
- size_t child_size;
- child_size = get_field_type_size(tf, event_type,
- offset_root, offset_parent,
- field->child[0], data);
- offset_root += child_size;
- offset_parent += child_size;
- size += child_size;
- }
- }
- field->field_size = size;
- }
- break;
- case LTT_STRING:
- size = strlen((char*)(data+offset_root)) + 1;// length + \0
- field->field_size = size;
- break;
- case LTT_ARRAY:
- if(field->fixed_size == FIELD_FIXED)
- size = field->field_size;
- else {
- for(i=0;i<field->field_type->element_number;i++) {
- size_t child_size;
- child_size = get_field_type_size(tf, event_type,
- offset_root, offset_parent,
- field->child[0], data);
- offset_root += child_size;
- offset_parent += child_size;
- size += child_size;
- }
- field->field_size = size;
- }
- break;
- case LTT_STRUCT:
- if(field->fixed_size == FIELD_FIXED)
- size = field->field_size;
- else {
- size_t current_root_offset = offset_root;
- size_t current_offset = 0;
- size_t child_size = 0;
- for(i=0;i<type->element_number;i++) {
- child_size = get_field_type_size(tf,
- event_type, current_root_offset, current_offset,
- field->child[i], data);
- current_offset += child_size;
- current_root_offset += child_size;
-
- }
- size = current_offset;
- field->field_size = size;
- }
- break;
- case LTT_UNION:
- if(field->fixed_size == FIELD_FIXED)
- size = field->field_size;
- else {
- size_t current_root_offset = field->offset_root;
- size_t current_offset = 0;
- for(i=0;i<type->element_number;i++) {
- size = get_field_type_size(tf, event_type,
- current_root_offset, current_offset,
- field->child[i], data);
- size = max(size, field->child[i]->field_size);
- }
- field->field_size = size;
- }
- break;
- }
+ g_assert(f->type == LTT_TYPE_STRING);
- return size;
+ return (gchar*)g_strdup((gchar*)(e->data + f->offset));
}
-#endif //0
-
-
-
-/*****************************************************************************
- *Function name
- * compute_fields_offsets : set the precomputable offset of the fields
- *Input params
- * tf : tracefile
- * field : the field
- * offset : pointer to the current offset, must be incremented
- ****************************************************************************/
-
-
-void compute_fields_offsets(LttTracefile *tf, LttField *field, off_t *offset,
- void *root)
-{
- LttType *type = &field->field_type;
-
- switch(type->type_class) {
- case LTT_INT_FIXED:
- case LTT_UINT_FIXED:
- case LTT_POINTER:
- case LTT_CHAR:
- case LTT_UCHAR:
- case LTT_SHORT:
- case LTT_USHORT:
- case LTT_INT:
- case LTT_UINT:
- case LTT_LONG:
- case LTT_ULONG:
- case LTT_SIZE_T:
- case LTT_SSIZE_T:
- case LTT_OFF_T:
- case LTT_FLOAT:
- case LTT_ENUM:
- if(field->fixed_root == FIELD_VARIABLE) {
- /* Align offset on type size */
- *offset += ltt_align(*offset, get_alignment(tf, field),
- tf->has_alignment);
- /* remember offset */
- field->offset_root = *offset;
- /* Increment offset */
- *offset += field->field_size;
- }
- /* None of these types has variable size, so we are sure that if
- * this element has a fixed_root, then the following one will have
- * a fixed root too, so it does not need the *offset at all.
- */
- break;
- case LTT_STRING:
- if(field->fixed_root == FIELD_VARIABLE) {
- field->offset_root = *offset;
- }
- *offset += strlen((gchar*)(root+*offset)) + 1;
- break;
- case LTT_ARRAY:
- g_assert(type->fields->len == 1);
- {
- off_t local_offset;
- LttField *child = &g_array_index(type->fields, LttField, 0);
- if(field->fixed_root == FIELD_VARIABLE) {
- *offset += ltt_align(*offset, get_alignment(tf, field),
- tf->has_alignment);
- /* remember offset */
- field->offset_root = *offset;
- field->array_offset = *offset;
- }
-
- if(field->field_size != 0) {
- /* Increment offset */
- /* field_size is the array size in bytes */
- *offset = field->offset_root + field->field_size;
- } else {
- guint i;
- *offset = field->array_offset;
- field->dynamic_offsets = g_array_set_size(field->dynamic_offsets,
- 0);
- for(i=0; i<type->size; i++) {
- g_array_append_val(field->dynamic_offsets, *offset);
- compute_fields_offsets(tf, child, offset, root);
- }
- }
- // local_offset = field->array_offset;
- // /* Set the offset at position 0 */
- // compute_fields_offsets(tf, child, &local_offset, root);
- }
- break;
- case LTT_SEQUENCE:
- g_assert(type->fields->len == 2);
- {
- off_t local_offset;
- LttField *child;
- guint i;
- if(field->fixed_root == FIELD_VARIABLE) {
- *offset += ltt_align(*offset, get_alignment(tf, field),
- tf->has_alignment);
- /* remember offset */
- field->offset_root = *offset;
-
- child = &g_array_index(type->fields, LttField, 0);
- compute_fields_offsets(tf, child, offset, root);
- child = &g_array_index(type->fields, LttField, 1);
- *offset += ltt_align(*offset, get_alignment(tf, child),
- tf->has_alignment);
- field->array_offset = *offset;
-
- } else {
- child = &g_array_index(type->fields, LttField, 1);
- }
- *offset = field->array_offset;
- field->dynamic_offsets = g_array_set_size(field->dynamic_offsets,
- 0);
- for(i=0; i<ltt_event_field_element_number(&tf->event, field); i++) {
- g_array_append_val(field->dynamic_offsets, *offset);
- compute_fields_offsets(tf, child, offset, root);
- }
- // local_offset = field->array_offset;
- // /* Set the offset at position 0 */
- // compute_fields_offsets(tf, child, &local_offset, root);
- }
- break;
- case LTT_STRUCT:
- {
- LttField *child;
- guint i;
- gint ret=0;
- if(field->fixed_root == FIELD_VARIABLE) {
- *offset += ltt_align(*offset, get_alignment(tf, field),
- tf->has_alignment);
- /* remember offset */
- field->offset_root = *offset;
- } else {
- *offset = field->offset_root;
- }
- for(i=0; i<type->fields->len; i++) {
- child = &g_array_index(type->fields, LttField, i);
- compute_fields_offsets(tf, child, offset, root);
- }
- }
- break;
- case LTT_UNION:
- {
- LttField *child;
- guint i;
- gint ret=0;
- if(field->fixed_root == FIELD_VARIABLE) {
- *offset += ltt_align(*offset, get_alignment(tf, field),
- tf->has_alignment);
- /* remember offset */
- field->offset_root = *offset;
- }
- for(i=0; i<type->fields->len; i++) {
- *offset = field->offset_root;
- child = &g_array_index(type->fields, LttField, i);
- compute_fields_offsets(tf, child, offset, root);
- }
- *offset = field->offset_root + field->field_size;
- }
- break;
- case LTT_NONE:
- default:
- g_error("compute_fields_offsets : unknown type");
- }
-
-}
-
-
-/*****************************************************************************
- *Function name
- * compute_offsets : set the dynamically computable offsets of an event type
- *Input params
- * tf : tracefile
- * event : event type
- *
- ****************************************************************************/
-void compute_offsets(LttTracefile *tf, LttEventType *event, off_t *offset,
- void *root)
-{
- guint i;
- gint ret;
-
- /* compute all variable offsets */
- for(i=0; i<event->fields->len; i++) {
- LttField *field = &g_array_index(event->fields, LttField, i);
- compute_fields_offsets(tf, field, offset, root);
- if(ret) break;
- }
-
-}
-
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