-/*****************************************************************************
- *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
- ****************************************************************************/
-
-unsigned ltt_event_cpu_id(LttEvent *e)
-{
- return e->tracefile->cpu_num;
-}
-
-/*****************************************************************************
- *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;
-}
-
-/*****************************************************************************
- *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)
- 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);
-}
-
-/*****************************************************************************
- *Function name
- * 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.
- *Input params
- * e : an instance of an event type
- * f : a field of the instance
- * i : the ith element (0, ...)
- ****************************************************************************/
-void ltt_event_field_element_select(LttEvent *e, LttField *f, unsigned i)
-{
- unsigned element_number;
- LttField *field;
- unsigned int k;
- size_t size;
- LttEventType *event_type;
-
- 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;
-
- 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);
-
- } else {
- for(k=0;k<=i;k++){
- size += get_field_type_size(e->tracefile, event_type,
- f->offset_root+size, size, field, e->data);
- }
- }
- f->current_element = i;
-}
-
-/*****************************************************************************
- * 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){
- 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);
- }
-#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){
- 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);
- }
-#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
- || t == LTT_ULONG || LTT_SIZE_T || LTT_OFF_T || LTT_POINTER);
-
- 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);
- }
- 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
- || f->field_type->type_class == LTT_LONG
- || f->field_type->type_class == LTT_SSIZE_T);
-
- 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);
- }
- 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);
-
- if(reverse_byte_order == 0) return *(float *)(e->data + f->offset_root);
- else{
- 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)
-{
- 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 == 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.
- ****************************************************************************/
-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.
- ****************************************************************************/
-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;
-
- 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;
- break;
- case LTT_SEQUENCE:
- {
- 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;
- }
-
- return size;
-}
-
-