/* This file is part of the Linux Trace Toolkit viewer
* Copyright (C) 2003-2004 Xiangxiu Yang
+ * 2006 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 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 <glib.h>
#include <asm/types.h>
-#include <linux/byteorder/swab.h>
+#include <byteswap.h>
#include "parser.h"
#include <ltt/ltt.h>
#include <ltt/trace.h>
#include <ltt/ltt-types.h>
+
+
+void compute_fields_offsets(LttTracefile *tf,
+ LttFacility *fac, LttField *field, off_t *offset, void *root);
+
+
LttEvent *ltt_event_new()
{
return g_new(LttEvent, 1);
}
-#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
LttFacility *ltt_event_facility(const LttEvent *e)
{
LttTrace * trace = e->tracefile->trace;
- unsigned id = e->event_id;
- return ltt_trace_facility_by_id(trace,id);
+ unsigned id = e->facility_id;
+ LttFacility *facility = ltt_trace_facility_by_id(trace,id);
+
+ g_assert(facility->exists);
+
+ return facility;
}
/*****************************************************************************
return &g_array_index(facility->events, LttEventType, e->event_id);
}
-/*****************************************************************************
- *Function name
- * ltt_event_field : get the root field of the event
- *Input params
- * e : an instance of an event type
- *Return value
- * LttField * : the root field of the event
- ****************************************************************************/
-
-LttField *ltt_event_field(LttEvent *e)
-{
- LttField * field;
- LttEventType * event_type = ltt_event_eventtype(e);
- if(unlikely(!event_type)) return NULL;
- field = event_type->root_field;
- if(unlikely(!field)) return NULL;
-
- get_field_type_size(e->tracefile, event_type, 0, 0,
- field, e->data);
-
- return field;
-}
/*****************************************************************************
*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
}
+
+LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep)
+{
+ return ep->tracefile;
+}
+
/*****************************************************************************
*Function name
* ltt_event_cpu_i: get the cpu id where the event happens
****************************************************************************/
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)
+ if(f->field_type.type_class != LTT_ARRAY &&
+ f->field_type.type_class != LTT_SEQUENCE)
return 0;
- if(f->field_type->type_class == LTT_ARRAY)
- return f->field_type->element_number;
- return ltt_get_uint(LTT_GET_BO(e->tracefile), f->sequ_number_size,
- e + f->offset_root);
+ 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));
}
/*****************************************************************************
* ltt_event_field_element_select
* : Set the currently selected element for a sequence or
* array field
- * O(1) if fields are of fixed size, else O(n) if fields are
- * of variable size.
+ * 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.
****************************************************************************/
-void ltt_event_field_element_select(LttEvent *e, LttField *f, unsigned i)
+LttField *ltt_event_field_element_select(LttEvent *e, LttField *f, gulong i)
{
- unsigned element_number;
+ 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 ;
+ if(f->field_type.type_class != LTT_ARRAY &&
+ f->field_type.type_class != LTT_SEQUENCE)
+ return NULL;
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;
-
- field = f->child[0];
-
- if(f->field_type->type_class == LTT_SEQUENCE)
- size = f->sequ_number_size;
- else
- size = 0;
-
- if(field->fixed_size == FIELD_FIXED) {
- size += field->field_size * i;
-
- get_field_type_size(e->tracefile, event_type,
- f->offset_root+size, size, field, e->data);
+ if(i >= element_number) return NULL;
+
+ if(f->field_type.type_class == LTT_ARRAY) {
+ field = &g_array_index(f->field_type.fields, LttField, 0);
+ } else {
+ field = &g_array_index(f->field_type.fields, LttField, 1);
+ }
+ if(field->field_size != 0) {
+ if(f->array_offset + (i * field->field_size) == field->offset_root)
+ return field; /* fixed length child, already at the right offset */
+ else
+ new_offset = f->array_offset + (i * field->field_size);
} else {
- for(k=0;k<=i;k++){
- size += get_field_type_size(e->tracefile, event_type,
- f->offset_root+size, size, field, e->data);
- }
+ /* Var. len. child */
+ new_offset = g_array_index(f->dynamic_offsets, off_t, i);
}
- f->current_element = i;
+ compute_fields_offsets(e->tracefile,
+ ltt_event_facility(e), field, &new_offset, e->data);
+
+ return field;
}
+
+off_t ltt_event_field_offset(LttEvent *e, LttField *f)
+{
+ return f->offset_root;
+}
+
+
+
/*****************************************************************************
* These functions extract data from an event after architecture specific
* conversions
****************************************************************************/
guint32 ltt_event_get_unsigned(LttEvent *e, LttField *f)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- LttTypeEnum t = f->field_type->type_class;
-
- g_assert(t == LTT_UINT || t == LTT_ENUM);
-
- if(f->field_size == 1){
- guint8 x = *(guint8 *)(e->data + f->offset_root);
- return (guint32) x;
- }else if(f->field_size == 2){
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->field_size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset_root);
+ return (guint32) x;
+ }
+ break;
+ case 2:
return (guint32)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
+ break;
+ case 4:
return (guint32)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_unsigned : field size %i unknown", f->field_size);
+ return 0;
+ break;
}
-#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);
- }
-#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)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- g_assert(f->field_type->type_class == LTT_INT);
-
- if(f->field_size == 1){
- gint8 x = *(gint8 *)(e->data + f->offset_root);
- return (gint32) x;
- }else if(f->field_size == 2){
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->field_size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset_root);
+ return (gint32) x;
+ }
+ break;
+ case 2:
return (gint32)ltt_get_int16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
+ break;
+ case 4:
return (gint32)ltt_get_int32(reverse_byte_order, e->data + f->offset_root);
+ break;
+ case 8:
+ default:
+ g_critical("ltt_event_get_int : field size %i unknown", f->field_size);
+ return 0;
+ break;
}
-#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);
- }
-#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;
-
- g_assert(t == LTT_UINT || t == LTT_ENUM);
-
- if(f->field_size == 1){
- guint8 x = *(guint8 *)(e->data + f->offset_root);
- return (guint64) x;
- }else if(f->field_size == 2){
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->field_size) {
+ case 1:
+ {
+ guint8 x = *(guint8 *)(e->data + f->offset_root);
+ return (guint64) x;
+ }
+ break;
+ case 2:
return (guint64)ltt_get_uint16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
+ break;
+ case 4:
return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 8){
+ break;
+ case 8:
return ltt_get_uint64(reverse_byte_order, e->data + f->offset_root);
+ break;
+ default:
+ g_critical("ltt_event_get_long_unsigned : field size %i unknown", f->field_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)
{
- //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);
-
- g_assert( f->field_type->type_class == LTT_INT);
-
- if(f->field_size == 1){
- gint8 x = *(gint8 *)(e->data + f->offset_root);
- return (gint64) x;
- }else if(f->field_size == 2){
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ reverse_byte_order = (g_ntohs(0x1) != 0x1);
+ } else {
+ reverse_byte_order = LTT_GET_BO(e->tracefile);
+ }
+
+ switch(f->field_size) {
+ case 1:
+ {
+ gint8 x = *(gint8 *)(e->data + f->offset_root);
+ return (gint64) x;
+ }
+ break;
+ case 2:
return (gint64)ltt_get_int16(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 4){
+ break;
+ case 4:
return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset_root);
- }else if(f->field_size == 8){
+ break;
+ case 8:
return ltt_get_int64(reverse_byte_order, e->data + f->offset_root);
+ break;
+ default:
+ g_critical("ltt_event_get_long_int : field size %i unknown", f->field_size);
+ return 0;
+ break;
}
- 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)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ 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_assert(f->field_type->type_class == LTT_FLOAT && f->field_size == 4);
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 4);
if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root);
else{
- guint32 aInt;
- memcpy((void*)&aInt, e->data + f->offset_root, 4);
- aInt = ___swab32(aInt);
- return ((float)aInt);
+ void *ptr = e->data + f->offset_root;
+ guint32 value = bswap_32(*(guint32*)ptr);
+ return *(float*)&value;
}
}
double ltt_event_get_double(LttEvent *e, LttField *f)
{
- gboolean reverse_byte_order = LTT_GET_BO(e->tracefile);
-
- g_assert(f->field_type->type_class == LTT_FLOAT && f->field_size == 8);
+ gboolean reverse_byte_order;
+ if(unlikely(f->field_type.network)) {
+ 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)
+ return ltt_event_get_float(e, f);
+
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 8);
if(reverse_byte_order == 0) return *(double *)(e->data + f->offset_root);
- else{
- guint64 aInt;
- memcpy((void*)&aInt, e->data + f->offset_root, 8);
- aInt = ___swab64(aInt);
- return ((double)aInt);
+ else {
+ void *ptr = e->data + f->offset_root;
+ guint64 value = bswap_64(*(guint64*)ptr);
+ return *(double*)&value;
}
}
****************************************************************************/
char *ltt_event_get_string(LttEvent *e, LttField *f)
{
- g_assert(f->field_type->type_class == LTT_STRING);
+ 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.
+ * compute_fields_offsets : set the precomputable offset of the fields
*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.
+ * fac : facility
+ * field : the field
+ * offset : pointer to the current offset, must be incremented
****************************************************************************/
-size_t get_field_type_size(LttTracefile *tf, LttEventType *event_type,
- off_t offset_root, off_t offset_parent,
- LttField *field, void *data)
-{
- size_t size = 0;
- guint i;
- LttType *type;
-
- 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;
+
+void compute_fields_offsets(LttTracefile *tf,
+ LttFacility *fac, 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_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;
+ case LTT_FLOAT:
+ case LTT_ENUM:
+ if(field->fixed_root == FIELD_VARIABLE) {
+ /* Align offset on type size */
+ *offset += ltt_align(*offset, get_alignment(field),
+ fac->alignment);
+ /* remember offset */
+ field->offset_root = *offset;
+ /* Increment offset */
+ *offset += field->field_size;
+ } else {
+ //g_debug("type before offset : %llu %llu %u\n", *offset,
+ // field->offset_root,
+ // field->field_size);
+ *offset = field->offset_root;
+ *offset += field->field_size;
+ //g_debug("type after offset : %llu\n", *offset);
+ }
break;
- case LTT_SEQUENCE:
+ case LTT_STRING:
+ if(field->fixed_root == FIELD_VARIABLE) {
+ field->offset_root = *offset;
+ }
+ *offset += strlen((gchar*)(root+*offset)) + 1;
+ /* Realign the data */
+ *offset += ltt_align(*offset, fac->pointer_size,
+ fac->alignment);
+ break;
+ case LTT_ARRAY:
+ g_assert(type->fields->len == 1);
{
- 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));
+ 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(field),
+ fac->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 {
- 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;
+ 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, fac, child, offset, root);
}
}
- field->field_size = size;
+ // local_offset = field->array_offset;
+ // /* Set the offset at position 0 */
+ // compute_fields_offsets(tf, fac, child, &local_offset, root);
}
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;
+ case LTT_SEQUENCE:
+ g_assert(type->fields->len == 2);
+ {
+ off_t local_offset;
+ LttField *child;
+ guint i;
+ guint num_elem;
+ if(field->fixed_root == FIELD_VARIABLE) {
+ *offset += ltt_align(*offset, get_alignment(field),
+ fac->alignment);
+ /* remember offset */
+ field->offset_root = *offset;
+
+ child = &g_array_index(type->fields, LttField, 0);
+ compute_fields_offsets(tf, fac, child, offset, root);
+ child = &g_array_index(type->fields, LttField, 1);
+ *offset += ltt_align(*offset, get_alignment(child),
+ fac->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);
+ num_elem = ltt_event_field_element_number(&tf->event, field);
+ for(i=0; i<num_elem; i++) {
+ g_array_append_val(field->dynamic_offsets, *offset);
+ compute_fields_offsets(tf, fac, child, offset, root);
}
- field->field_size = size;
+ g_assert(num_elem == field->dynamic_offsets->len);
+
+ /* Realign the data */
+ *offset += ltt_align(*offset, fac->pointer_size,
+ fac->alignment);
+
+ // local_offset = field->array_offset;
+ // /* Set the offset at position 0 */
+ // compute_fields_offsets(tf, fac, child, &local_offset, root);
}
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;
-
+ {
+ LttField *child;
+ guint i;
+ gint ret=0;
+ if(field->fixed_root == FIELD_VARIABLE) {
+ *offset += ltt_align(*offset, get_alignment(field),
+ fac->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, fac, child, offset, root);
}
- 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);
+ {
+ LttField *child;
+ guint i;
+ gint ret=0;
+ if(field->fixed_root == FIELD_VARIABLE) {
+ *offset += ltt_align(*offset, get_alignment(field),
+ fac->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, fac, child, offset, root);
}
- field->field_size = size;
+ *offset = field->offset_root + field->field_size;
}
break;
+ case LTT_NONE:
+ default:
+ g_error("compute_fields_offsets : unknown type");
}
- return size;
}
+/*****************************************************************************
+ *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, LttFacility *fac,
+ LttEventType *event, off_t *offset, void *root)
+{
+ guint i;
+
+ /* compute all variable offsets */
+ for(i=0; i<event->fields->len; i++) {
+ //g_debug("computing offset %u of %u\n", i, event->fields->len-1);
+ LttField *field = &g_array_index(event->fields, LttField, i);
+ compute_fields_offsets(tf, fac, field, offset, root);
+ }
+
+}
+
projects / lttv.git / blobdiff