+ if(likely(field))
+ preset_field_type_size(tf, event_type->facility, event_type, 0, 0,
+ FIELD_FIXED, FIELD_FIXED,
+ field);
+
+}
+
+
+/*****************************************************************************
+ *Function name
+ * preset_field_type_size : set the fixed sizes of the field type
+ *Input params
+ * tf : tracefile
+ * event_type : event type
+ * offset_root : offset from the root
+ * offset_parent : offset from the parent
+ * fixed_root : Do we know a fixed offset to the root ?
+ * fixed_parent : Do we know a fixed offset to the parent ?
+ * field : field
+ ****************************************************************************/
+void preset_field_type_size(LttTracefile *tf, LttEventType *event_type,
+ off_t offset_root, off_t offset_parent,
+ enum field_status *fixed_root, enum field_status *fixed_parent,
+ LttField *field)
+{
+ 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);
+
+ type = field->field_type;
+
+ field->fixed_root = *fixed_root;
+ if(field->fixed_root == FIELD_FIXED)
+ field->offset_root = offset_root;
+ else
+ field->offset_root = 0;
+
+ field->fixed_parent = *fixed_parent;
+ if(field->fixed_parent == FIELD_FIXED)
+ field->offset_parent = offset_parent;
+ else
+ field->offset_parent = 0;
+
+
+ switch(type->type_class) {
+ case LTT_INT:
+ case LTT_UINT:
+ case LTT_FLOAT:
+ case LTT_ENUM:
+ field->field_size = (off_t) ltt_type_size(LTT_GET_BO(tf),
+ event_type->facility, type);
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_POINTER:
+ field->field_size = (off_t)event_type->facility->pointer_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_LONG:
+ case LTT_ULONG:
+ field->field_size = (off_t)event_type->facility->pointer_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_SIZE_T:
+ case LTT_SSIZE_T:
+ case LTT_OFF_T:
+ field->field_size = (off_t)event_type->facility->size_t_size;
+ field->fixed_size = FIELD_FIXED;
+ break;
+ case LTT_SEQUENCE:
+ preset_field_type_size(tf, event_type->facility, event_type,
+ 0, 0,
+ FIELD_VARIABLE, FIELD_VARIABLE,
+ field->child[0]);
+ field->fixed_size = FIELD_VARIABLE;
+ field->field_size = 0;
+ break;
+ case LTT_STRING:
+ field->fixed_size = FIELD_VARIABLE;
+ field->field_size = 0;
+ break;
+ case LTT_ARRAY:
+ preset_field_type_size(tf, event_type->facility, event_type,
+ 0, 0,
+ FIELD_VARIABLE, FIELD_VARIABLE,
+ field->child[0]);
+ field->fixed_size = field->child[0]->fixed_size;
+ if(field->fixed_size == FIELD_FIXED)
+ field->field_size = type->element_number * field->child[0]->field_size;
+ else
+ field->field_size = 0;
+ break;
+ case LTT_STRUCT:
+ size_t current_root_offset = field->offset_root;
+ size_t current_offset = 0;
+ enum field_status current_child_status = FIELD_FIXED;
+ for(i=0;i<type->element_number;i++) {
+ preset_field_type_size(tf, event_type->facility, event_type,
+ current_root_offset, current_offset,
+ fixed_root, ¤t_child_status,
+ field->child[i]);
+ if(current_child_status == FIELD_FIXED) {
+ current_root_offset += field->child[i]->field_size;
+ current_offset += field->child[i]->field_size;
+ } else {
+ current_root_offset = 0;
+ current_offset = 0;
+ }
+ }
+ if(current_child_status != FIELD_FIXED) {
+ *fixed_parent = current_child_status;
+ field->field_size = 0;
+ field->fixed_size = current_child_status;
+ } else {
+ field->field_size = current_offset;
+ field->fixed_size = FIELD_FIXED;
+ }
+ break;
+ case LTT_UNION:
+ size_t current_root_offset = field->offset_root;
+ size_t current_offset = 0;
+ size_t max_size = 0;
+ enum field_status final_child_status = FIELD_FIXED;
+ for(i=0;i<type->element_number;i++) {
+ enum field_status current_root_child_status = FIELD_FIXED;
+ enum field_status current_child_status = FIELD_FIXED;
+ preset_field_type_size(tf, event_type->facility, event_type,
+ current_root_offset, current_offset,
+ ¤t_root_child_status, ¤t_child_status,
+ field->child[i]);
+ if(current_child_status != FIELD_FIXED)
+ final_child_status = current_child_status;
+ else
+ max_size = max(max_size, field->child[i]->field_size);
+ }
+ if(final_child_status != FIELD_FIXED) {
+ *fixed_root = final_child_status;
+ *fixed_parent = final_child_status;
+ field->field_size = 0;
+ field->fixed_size = current_child_status;
+ } else {
+ field->field_size = max_size;
+ field->fixed_size = FIELD_FIXED;
+ }
+ break;
+ }
+
+}
+
+
+/*****************************************************************************
+ *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->facility, 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->facility,
+ 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<seqnum;i++) {
+ size_t child_size;
+ child_size = get_field_type_size(tf, event_type->facility,
+ 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->facility,
+ 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->facility, 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;