+/* This file is part of the Linux Trace Toolkit viewer
+ * Copyright (C) 2003-2004 Xiangxiu Yang
+ * 2006 Mathieu Desnoyers
+ *
+ * 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 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
+ * Lesser General Public License for more details.
+ *
+ * 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 <linux/byteorder/swab.h>
+#include <byteswap.h>
-#include "LTTTypes.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,
+ LttFacility *fac, 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);
+}
+
/*****************************************************************************
*Function name
- * ltt_facility_eventtype_id: get event type id
- * (base id + position of the event)
+ * ltt_event_eventtype_id: get event type id
+ * (base id + position of the event)
*Input params
- * e : an instance of an event type
+ * e : an instance of an event type
*Return value
- * unsigned : event type id
+ * unsigned : event type id
****************************************************************************/
-unsigned ltt_event_eventtype_id(ltt_event *e)
+unsigned ltt_event_eventtype_id(const LttEvent *e)
{
return (unsigned) e->event_id;
}
*Input params
* e : an instance of an event type
*Return value
- * ltt_facility * : the facility of the event
+ * 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
****************************************************************************/
-ltt_facility *ltt_event_facility(ltt_event *e)
+unsigned ltt_event_facility_id(const LttEvent *e)
{
- ltt_eventtype * evT;
- ptr_wrap * ptr;
- ptr = (ptr_wrap*)g_ptr_array_index(e->tracefile->eventtype_event_id,
- (gint)(e->event_id));
- evT = (ltt_eventtype*)(ptr->ptr);
-
- if(!evT) return NULL;
- return evT->facility;
+ return e->facility_id;
}
/*****************************************************************************
*Input params
* e : an instance of an event type
*Return value
- * ltt_eventtype * : the event type of the event
+ * LttEventType * : the event type of the event
****************************************************************************/
-ltt_eventtype *ltt_event_eventtype(ltt_event *e)
+LttEventType *ltt_event_eventtype(const LttEvent *e)
{
- ptr_wrap * ptr;
- ptr = (ptr_wrap*)g_ptr_array_index(e->tracefile->eventtype_event_id,
- (gint)(e->event_id));
- return (ltt_eventtype*)(ptr->ptr);
+ 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
- * ltt_time : the time of the event
+ * LttTime : the time of the event
****************************************************************************/
-ltt_time ltt_event_time(ltt_event *e)
+LttTime ltt_event_time(const LttEvent *e)
{
- return getEventTime(e->tracefile);
+ return e->event_time;
}
/*****************************************************************************
*Input params
* e : an instance of an event type
*Return value
- * ltt_time : the cycle count of the event
+ * LttCycleCount : the cycle count of the event
****************************************************************************/
-ltt_cycle_count ltt_event_cycle_count(ltt_event *e)
+LttCycleCount ltt_event_cycle_count(const LttEvent *e)
{
- return e->cycle_count;
+ return e->tsc;
}
+
+
/*****************************************************************************
*Function name
- * ltt_event_cpu_i: get the cpu id where the event happens
+ * ltt_event_position_get : get the event position data
*Input params
- * e : an instance of an event type
- *Return value
- * unsigned : the cpu id
+ * e : an instance of an event type
+ * ep : a pointer to event's position structure
+ * tf : tracefile pointer
+ * block : current block
+ * offset : current offset
+ * tsc : current tsc
+ ****************************************************************************/
+void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf,
+ guint *block, guint *offset, guint64 *tsc)
+{
+ *tf = ep->tracefile;
+ *block = ep->block;
+ *offset = ep->offset;
+ *tsc = ep->tsc;
+}
+
+
+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
+ *Input params
+ * e : an instance of an event type
+ * ep : a pointer to event's position structure
+ ****************************************************************************/
+
+void ltt_event_position(LttEvent *e, LttEventPosition *ep)
+{
+ ep->tracefile = e->tracefile;
+ ep->block = e->block;
+ ep->offset = e->offset;
+ ep->tsc = e->tsc;
+}
+
+LttEventPosition * ltt_event_position_new()
+{
+ return g_new(LttEventPosition, 1);
+}
+
+
+/*****************************************************************************
+ * Function name
+ * ltt_event_position_compare : compare two positions
+ * A NULL value is infinite.
+ * Input params
+ * ep1 : a pointer to event's position structure
+ * ep2 : a pointer to event's position structure
+ * Return
+ * -1 is ep1 < ep2
+ * 1 if ep1 > ep2
+ * 0 if ep1 == ep2
+ ****************************************************************************/
+
+
+gint ltt_event_position_compare(const LttEventPosition *ep1,
+ const LttEventPosition *ep2)
+{
+ if(ep1 == NULL && ep2 == NULL)
+ return 0;
+ if(ep1 != NULL && ep2 == NULL)
+ return -1;
+ if(ep1 == NULL && ep2 != NULL)
+ return 1;
+
+ if(ep1->tracefile != ep2->tracefile)
+ g_error("ltt_event_position_compare on different tracefiles makes no sense");
+
+ if(ep1->block < ep2->block)
+ return -1;
+ if(ep1->block > ep2->block)
+ return 1;
+ if(ep1->offset < ep2->offset)
+ return -1;
+ if(ep1->offset > ep2->offset)
+ return 1;
+ return 0;
+}
+
+/*****************************************************************************
+ * Function name
+ * ltt_event_position_copy : copy position
+ * Input params
+ * src : a pointer to event's position structure source
+ * dest : a pointer to event's position structure dest
+ * Return
+ * void
****************************************************************************/
+void ltt_event_position_copy(LttEventPosition *dest,
+ const LttEventPosition *src)
+{
+ if(src == NULL)
+ dest = NULL;
+ else
+ *dest = *src;
+}
+
+
-unsigned ltt_event_cpu_id(ltt_event *e)
+LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep)
{
- return e->tracefile->trace_header->cpu_id;
+ return ep->tracefile;
}
/*****************************************************************************
*Function name
- * ltt_event_cpu_i: get the name of the system where the event happens
+ * ltt_event_cpu_i: get the cpu id where the event happens
*Input params
* e : an instance of an event type
*Return value
- * char * : the name of the system
+ * unsigned : the cpu id
****************************************************************************/
-char *ltt_event_system_name(ltt_event *e)
+unsigned ltt_event_cpu_id(LttEvent *e)
{
- return e->tracefile->trace_header->system_name;
+ return e->tracefile->cpu_num;
}
/*****************************************************************************
* void * : pointer to the raw data for the event
****************************************************************************/
-void *ltt_event_data(ltt_event *e)
+void *ltt_event_data(LttEvent *e)
{
return e->data;
}
* 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 ????
+ * 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
****************************************************************************/
-
-unsigned ltt_event_field_element_number(ltt_event *e, ltt_field *f)
+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;
-
- return f->field_type->element_number;
+
+ 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) because of offset array.
*Input params
- * e : an instance of an event type ????
+ * e : an instance of an event type
* f : a field of the instance
- * i : the ith element
- *Return value
- * int : ???? error number
+ * i : the ith element (0, ...)
+ *returns : the child field, at the right index, updated.
****************************************************************************/
-
-int ltt_event_field_element_select(ltt_event *e, ltt_field *f, unsigned i)
+LttField *ltt_event_field_element_select(LttEvent *e, LttField *f, gulong i)
{
- if(f->field_type->type_class != LTT_ARRAY &&
- f->field_type->type_class != LTT_SEQUENCE)
- return -1; //?????
-
- if(f->field_type->element_number < i || i == 0) return -1; //????
+ 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 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 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 {
+ /* Var. len. child */
+ new_offset = g_array_index(f->dynamic_offsets, off_t, i);
+ }
+ compute_fields_offsets(e->tracefile,
+ ltt_event_facility(e), field, &new_offset, e->data);
+
+ return field;
+}
+
- f->current_element = i - 1;
- return 0;
+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
****************************************************************************/
-
-unsigned ltt_event_get_unsigned(ltt_event *e, ltt_field *f)
+guint32 ltt_event_get_unsigned(LttEvent *e, LttField *f)
{
- ltt_arch_size rSize = e->tracefile->trace_header->arch_size;
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
- ltt_type_enum t = f->field_type->type_class;
-
- if(t != LTT_UINT || t != LTT_ENUM)
- g_error("The type of the field is not unsigned int\n");
-
- if(rSize == LTT_LP32){
- if(f->field_size != 2)
- g_error("The type of the field is not unsigned int: uint16_t\n");
- else{
- uint16_t x = *(uint16_t *)(e->data + f->offset_root);
- return (unsigned) (revFlag ? BREV16(x) : x);
- }
- }else if(rSize == LTT_ILP32 || rSize == LTT_LP64){
- if(f->field_size != 4)
- g_error("The type of the field is not unsigned int: uint32_t\n");
- else{
- uint32_t x = *(uint32_t *)(e->data + f->offset_root);
- return (unsigned) (revFlag ? BREV32(x): x);
- }
- }else if(rSize == LTT_ILP64){
- if(f->field_size != 8)
- g_error("The type of the field is not unsigned int: uint64_t\n");
- else{
- uint64_t x = *(uint64_t *)(e->data + f->offset_root);
- return (unsigned) (revFlag ? BREV64(x): x);
+ 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);
+ 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;
}
}
-int ltt_event_get_int(ltt_event *e, ltt_field *f)
+gint32 ltt_event_get_int(LttEvent *e, LttField *f)
{
- ltt_arch_size rSize = e->tracefile->trace_header->arch_size;
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
-
- if(f->field_type->type_class != LTT_INT)
- g_error("The type of the field is not int\n");
-
- if(rSize == LTT_LP32){
- if(f->field_size != 2)
- g_error("The type of the field is not int: int16_t\n");
- else{
- int16_t x = *(int16_t *)(e->data + f->offset_root);
- return (int) (revFlag ? BREV16(x) : x);
- }
- }else if(rSize == LTT_ILP32 || rSize == LTT_LP64){
- if(f->field_size != 4)
- g_error("The type of the field is not int: int32_t\n");
- else{
- int32_t x = *(int32_t *)(e->data + f->offset_root);
- return (int) (revFlag ? BREV32(x): x);
- }
- }else if(rSize == LTT_ILP64){
- if(f->field_size != 8)
- g_error("The type of the field is not int: int64_t\n");
- else{
- int64_t x = *(int64_t *)(e->data + f->offset_root);
- return (int) (revFlag ? BREV64(x): x);
+ 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);
+ 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;
}
}
-unsigned long ltt_event_get_long_unsigned(ltt_event *e, ltt_field *f)
+guint64 ltt_event_get_long_unsigned(LttEvent *e, LttField *f)
{
- ltt_arch_size rSize = e->tracefile->trace_header->arch_size;
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
- ltt_type_enum t = f->field_type->type_class;
-
- if(t != LTT_UINT || t != LTT_ENUM)
- g_error("The type of the field is not unsigned long\n");
-
- if(rSize == LTT_LP32 || rSize == LTT_ILP32 ){
- if(f->field_size != 4)
- g_error("The type of the field is not unsigned long: uint32_t\n");
- else{
- uint32_t x = *(uint32_t *)(e->data + f->offset_root);
- return (unsigned long) (revFlag ? BREV32(x) : x);
- }
- }else if(rSize == LTT_LP64 || rSize == LTT_ILP64){
- if(f->field_size != 8)
- g_error("The type of the field is not unsigned long: uint64_t\n");
- else{
- uint64_t x = *(uint64_t *)(e->data + f->offset_root);
- return (unsigned long) (revFlag ? BREV64(x): x);
+ 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);
+ break;
+ case 4:
+ return (guint64)ltt_get_uint32(reverse_byte_order, e->data + f->offset_root);
+ 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;
}
}
-long int ltt_event_get_long_int(ltt_event *e, ltt_field *f)
+gint64 ltt_event_get_long_int(LttEvent *e, LttField *f)
{
- ltt_arch_size rSize = e->tracefile->trace_header->arch_size;
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
-
- if( f->field_type->type_class != LTT_INT)
- g_error("The type of the field is not long int\n");
-
- if(rSize == LTT_LP32 || rSize == LTT_ILP32 ){
- if(f->field_size != 4)
- g_error("The type of the field is not long int: int32_t\n");
- else{
- int32_t x = *(int32_t *)(e->data + f->offset_root);
- return (long) (revFlag ? BREV32(x) : x);
- }
- }else if(rSize == LTT_LP64 || rSize == LTT_ILP64){
- if(f->field_size != 8)
- g_error("The type of the field is not long int: int64_t\n");
- else{
- int64_t x = *(int64_t *)(e->data + f->offset_root);
- return (long) (revFlag ? BREV64(x): x);
+ 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);
+ break;
+ case 4:
+ return (gint64)ltt_get_int32(reverse_byte_order, e->data + f->offset_root);
+ 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;
}
}
-float ltt_event_get_float(ltt_event *e, ltt_field *f)
+float ltt_event_get_float(LttEvent *e, LttField *f)
{
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
+ 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_type->type_class != LTT_FLOAT ||
- (f->field_type->type_class == LTT_FLOAT && f->field_size != 4))
- g_error("The type of the field is not float\n");
+ g_assert(f->field_type.type_class == LTT_FLOAT && f->field_size == 4);
- if(revFlag == 0) return *(float *)(e->data + f->offset_root);
+ if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root);
else{
- uint32_t 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(ltt_event *e, ltt_field *f)
+double ltt_event_get_double(LttEvent *e, LttField *f)
{
- int revFlag = e->tracefile->my_arch_endian ==
- e->tracefile->trace_header->arch_endian ? 0:1;
-
- if(f->field_type->type_class != LTT_FLOAT ||
- (f->field_type->type_class == LTT_FLOAT && f->field_size != 8))
- g_error("The type of the field is not double\n");
-
- if(revFlag == 0) return *(double *)(e->data + f->offset_root);
- else{
- uint64_t aInt;
- memcpy((void*)&aInt, e->data + f->offset_root, 8);
- aInt = ___swab64(aInt);
- return *((double *)&aInt);
+ 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 {
+ void *ptr = e->data + f->offset_root;
+ guint64 value = bswap_64(*(guint64*)ptr);
+ return *(double*)&value;
}
}
/*****************************************************************************
* The string obtained is only valid until the next read from
- * the same tracefile. ????
+ * 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
+ * compute_fields_offsets : set the precomputable offset of the fields
+ *Input params
+ * fac : facility
+ * field : the field
+ * offset : pointer to the current offset, must be incremented
****************************************************************************/
-char *ltt_event_get_string(ltt_event *e, ltt_field *f)
+
+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_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(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_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);
+ {
+ 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 {
+ 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);
+ }
+ }
+ // local_offset = field->array_offset;
+ // /* Set the offset at position 0 */
+ // compute_fields_offsets(tf, fac, child, &local_offset, root);
+ }
+ break;
+ 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);
+ }
+ 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:
+ {
+ 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);
+ }
+ }
+ break;
+ case LTT_UNION:
+ {
+ 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);
+ }
+ *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, LttFacility *fac,
+ LttEventType *event, off_t *offset, void *root)
{
- if(f->field_type->type_class != LTT_STRING)
- g_error("The field contains no string\n");
- return (char*)g_strdup((char*)(e->data + f->offset_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