-
-/*****************************************************************************
- *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)
-{
- 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;
- }
-
- return size;
-}
-#endif //0
-
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-