//void set_fields_offsets(LttTracefile *tf, LttEventType *event_type);
//size_t get_fields_offsets(LttTracefile *tf, LttEventType *event_type, void *data);
-#if 0
-/* get the size of the field type according to
- * The facility size information. */
-static inline 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);
-#endif //0
-
/* map a fixed size or a block information from the file (fd) */
static gint map_block(LttTracefile * tf, guint block_num);
return ENOPROTOOPT;
}
-#if 0
-/*****************************************************************************
- *Function name
- * set_fields_offsets : set the precomputable offset of the fields
- *Input params
- * tracefile : opened trace file
- * event_type : the event type
- ****************************************************************************/
-
-void set_fields_offsets(LttTracefile *tf, LttEventType *event_type)
-{
- LttField *field = event_type->root_field;
- enum field_status fixed_root = FIELD_FIXED, fixed_parent = FIELD_FIXED;
-
- if(likely(field))
- preset_field_type_size(tf, event_type, 0, 0,
- &fixed_root, &fixed_parent,
- field);
-
-}
-#endif //0
-
-
-/*****************************************************************************
- *Function name
- * get_alignment : Get the alignment needed for a field.
- *Input params
- * field : field
- *
- * returns : The size on which it must be aligned.
- *
- ****************************************************************************/
-#if 0
-off_t get_alignment(LttField *field)
-{
- 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:
- /* Align offset on type size */
- g_assert(field->field_size != 0);
- return field->field_size;
- break;
- case LTT_STRING:
- return 1;
- break;
- case LTT_ARRAY:
- g_assert(type->fields->len == 1);
- {
- LttField *child = &g_array_index(type->fields, LttField, 0);
- return get_alignment(child);
- }
- break;
- case LTT_SEQUENCE:
- g_assert(type->fields->len == 2);
- {
- off_t localign = 1;
- LttField *child = &g_array_index(type->fields, LttField, 0);
-
- localign = max(localign, get_alignment(child));
-
- child = &g_array_index(type->fields, LttField, 1);
- localign = max(localign, get_alignment(child));
-
- return localign;
- }
- break;
- case LTT_STRUCT:
- case LTT_UNION:
- {
- guint i;
- off_t localign = 1;
-
- for(i=0; i<type->fields->len; i++) {
- LttField *child = &g_array_index(type->fields, LttField, i);
- localign = max(localign, get_alignment(child));
- }
- return localign;
- }
- break;
- case LTT_NONE:
- default:
- g_error("get_alignment : unknown type");
- return -1;
- }
-}
-
-#endif //0
-
-/*****************************************************************************
- *Function name
- * field_compute_static_size : Determine the size of fields known by their
- * sole definition. Unions, arrays and struct sizes might be known, but
- * the parser does not give that information.
- *Input params
- * tf : tracefile
- * field : field
- *
- ****************************************************************************/
-#if 0
-void field_compute_static_size(LttFacility *fac, LttField *field)
-{
- 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:
- case LTT_STRING:
- /* nothing to do */
- break;
- case LTT_ARRAY:
- /* note this : array type size is the number of elements in the array,
- * while array field size of the length of the array in bytes */
- g_assert(type->fields->len == 1);
- {
- LttField *child = &g_array_index(type->fields, LttField, 0);
- field_compute_static_size(fac, child);
-
- if(child->field_size != 0) {
- field->field_size = type->size * child->field_size;
- field->dynamic_offsets = g_array_sized_new(FALSE, TRUE,
- sizeof(off_t), type->size);
- } else {
- field->field_size = 0;
- }
- }
- break;
- case LTT_SEQUENCE:
- g_assert(type->fields->len == 2);
- {
- off_t local_offset = 0;
- LttField *child = &g_array_index(type->fields, LttField, 1);
- field_compute_static_size(fac, child);
- field->field_size = 0;
- type->size = 0;
- if(child->field_size != 0) {
- field->dynamic_offsets = g_array_sized_new(FALSE, TRUE,
- sizeof(off_t), SEQUENCE_AVG_ELEMENTS);
- }
- }
- break;
- case LTT_STRUCT:
- case LTT_UNION:
- {
- guint i;
- for(i=0;i<type->fields->len;i++) {
- LttField *child = &g_array_index(type->fields, LttField, i);
- field_compute_static_size(fac, child);
- if(child->field_size != 0) {
- type->size += ltt_align(type->size, get_alignment(child),
- fac->alignment);
- type->size += child->field_size;
- } else {
- /* As soon as we find a child with variable size, we have
- * a variable size */
- type->size = 0;
- break;
- }
- }
- field->field_size = type->size;
- }
- break;
- default:
- g_error("field_static_size : unknown type");
- }
-
-}
-#endif //0
-
-
-/*****************************************************************************
- *Function name
- * precompute_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
- *
- * return : 1 : found a variable length field, stop the processing.
- * 0 otherwise.
- ****************************************************************************/
-
-#if 0
-gint precompute_fields_offsets(LttFacility *fac, LttField *field, off_t *offset, gint is_compact)
-{
- LttType *type = &field->field_type;
-
- if(unlikely(is_compact)) {
- g_assert(field->field_size != 0);
- /* FIXME THIS IS A HUUUUUGE hack :
- * offset is between the compact_data field in struct LttEvent
- * and the address of the field root in the memory map.
- * ark. Both will stay at the same addresses while the event
- * is readable, so it's ok.
- */
- field->offset_root = 0;
- field->fixed_root = FIELD_FIXED;
- return 0;
- }
-
- 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:
- g_assert(field->field_size != 0);
- /* Align offset on type size */
- *offset += ltt_align(*offset, get_alignment(field),
- fac->alignment);
- /* remember offset */
- field->offset_root = *offset;
- field->fixed_root = FIELD_FIXED;
- /* Increment offset */
- *offset += field->field_size;
- return 0;
- break;
- case LTT_STRING:
- field->offset_root = *offset;
- field->fixed_root = FIELD_FIXED;
- return 1;
- break;
- case LTT_ARRAY:
- g_assert(type->fields->len == 1);
- {
- LttField *child = &g_array_index(type->fields, LttField, 0);
-
- *offset += ltt_align(*offset, get_alignment(field),
- fac->alignment);
-
- /* remember offset */
- field->offset_root = *offset;
- field->array_offset = *offset;
- field->fixed_root = FIELD_FIXED;
-
- /* Let the child be variable */
- //precompute_fields_offsets(tf, child, offset);
-
- if(field->field_size != 0) {
- /* Increment offset */
- /* field_size is the array size in bytes */
- *offset += field->field_size;
- return 0;
- } else {
- return 1;
- }
- }
- break;
- case LTT_SEQUENCE:
- g_assert(type->fields->len == 2);
- {
- LttField *child;
- guint ret;
-
- *offset += ltt_align(*offset, get_alignment(field),
- fac->alignment);
-
- /* remember offset */
- field->offset_root = *offset;
- field->fixed_root = FIELD_FIXED;
-
- child = &g_array_index(type->fields, LttField, 0);
- ret = precompute_fields_offsets(fac, child, offset, is_compact);
- g_assert(ret == 0); /* Seq len cannot have variable len */
-
- child = &g_array_index(type->fields, LttField, 1);
- *offset += ltt_align(*offset, get_alignment(child),
- fac->alignment);
- field->array_offset = *offset;
- /* Let the child be variable. */
- //ret = precompute_fields_offsets(fac, child, offset);
-
- /* Cannot precompute fields offsets of sequence members, and has
- * variable length. */
- return 1;
- }
- break;
- case LTT_STRUCT:
- {
- LttField *child;
- guint i;
- gint ret=0;
-
- *offset += ltt_align(*offset, get_alignment(field),
- fac->alignment);
- /* remember offset */
- field->offset_root = *offset;
- field->fixed_root = FIELD_FIXED;
-
- for(i=0; i< type->fields->len; i++) {
- child = &g_array_index(type->fields, LttField, i);
- ret = precompute_fields_offsets(fac, child, offset, is_compact);
-
- if(ret) break;
- }
- return ret;
- }
- break;
- case LTT_UNION:
- {
- LttField *child;
- guint i;
- gint ret=0;
-
- *offset += ltt_align(*offset, get_alignment(field),
- fac->alignment);
- /* remember offset */
- field->offset_root = *offset;
- field->fixed_root = FIELD_FIXED;
-
- for(i=0; i< type->fields->len; i++) {
- *offset = field->offset_root;
- child = &g_array_index(type->fields, LttField, i);
- ret = precompute_fields_offsets(fac, child, offset, is_compact);
-
- if(ret) break;
- }
- *offset = field->offset_root + field->field_size;
- return ret;
- }
-
- break;
- case LTT_NONE:
- default:
- g_error("precompute_fields_offsets : unknown type");
- return 1;
- }
-
-}
-
-#endif //0
-
-#if 0
-/*****************************************************************************
- *Function name
- * precompute_offsets : set the precomputable offset of an event type
- *Input params
- * tf : tracefile
- * event : event type
- *
- ****************************************************************************/
-void precompute_offsets(LttFacility *fac, LttEventType *event)
-{
- guint i;
- off_t offset = 0;
- gint ret;
-
- /* First, compute the size of fixed size fields. Will determine size for
- * arrays, struct and unions, which is not done by the parser */
- for(i=0; i<event->fields->len; i++) {
- LttField *field = &g_array_index(event->fields, LttField, i);
- field_compute_static_size(fac, field);
- }
-
- /* Precompute all known offsets */
- for(i=0; i<event->fields->len; i++) {
- LttField *field = &g_array_index(event->fields, LttField, i);
- if(event->has_compact_data && i == 0)
- ret = precompute_fields_offsets(fac, field, &offset, 1);
- else
- ret = precompute_fields_offsets(fac, field, &offset, 0);
- if(ret) break;
- }
-}
-#endif //0
-
-
-
-/*****************************************************************************
- *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
- ****************************************************************************/
-
-
-
-// preset the fixed size offsets. Calculate them just like genevent-new : an
-// increment of a *to value that represents the offset from the start of the
-// event data.
-// The preset information is : offsets up to (and including) the first element
-// of variable size. All subsequent fields must be flagged "VARIABLE OFFSET".
-#if 0
-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)
-{
- enum field_status local_fixed_root, local_fixed_parent;
- 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;
-
- size_t current_root_offset;
- size_t current_offset;
- enum field_status current_child_status, final_child_status;
- size_t max_size;
-
- switch(type->type_class) {
- case LTT_INT_FIXED:
- case LTT_UINT_FIXED:
- case LTT_CHAR:
- case LTT_UCHAR:
- case LTT_SHORT:
- case LTT_USHORT:
- case LTT_INT:
- case LTT_UINT:
- case LTT_FLOAT:
- case LTT_ENUM:
- field->field_size = ltt_type_size(tf->trace, 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->long_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:
- local_fixed_root = FIELD_VARIABLE;
- local_fixed_parent = FIELD_VARIABLE;
- preset_field_type_size(tf, event_type,
- 0, 0,
- &local_fixed_root, &local_fixed_parent,
- field->child[0]);
- field->fixed_size = FIELD_VARIABLE;
- field->field_size = 0;
- *fixed_root = FIELD_VARIABLE;
- *fixed_parent = FIELD_VARIABLE;
- break;
- case LTT_STRING:
- field->fixed_size = FIELD_VARIABLE;
- field->field_size = 0;
- *fixed_root = FIELD_VARIABLE;
- *fixed_parent = FIELD_VARIABLE;
- break;
- case LTT_ARRAY:
- local_fixed_root = FIELD_VARIABLE;
- local_fixed_parent = FIELD_VARIABLE;
- preset_field_type_size(tf, event_type,
- 0, 0,
- &local_fixed_root, &local_fixed_parent,
- 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;
- *fixed_root = FIELD_VARIABLE;
- *fixed_parent = FIELD_VARIABLE;
- }
- break;
- case LTT_STRUCT:
- current_root_offset = field->offset_root;
- current_offset = 0;
- current_child_status = FIELD_FIXED;
- for(i=0;i<type->element_number;i++) {
- preset_field_type_size(tf, 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:
- current_root_offset = field->offset_root;
- current_offset = 0;
- max_size = 0;
- 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,
- 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) {
- g_error("LTTV does not support variable size fields in unions.");
- /* This will stop the application. */
- *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;
- case LTT_NONE:
- g_error("unexpected type NONE");
- break;
- }
-
-}
-#endif //0
-
-/*****************************************************************************
- *Function name
- * check_fields_compatibility : Check for compatibility between two fields :
- * do they use the same inner structure ?
- *Input params
- * event_type1 : event type
- * event_type2 : event type
- * field1 : field
- * field2 : field
- *Returns : 0 if identical
- * 1 if not.
- ****************************************************************************/
-// this function checks for equality of field types. Therefore, it does not use
-// per se offsets. For instance, an aligned version of a structure is
-// compatible with an unaligned version of the same structure.
-#if 0
-gint check_fields_compatibility(LttEventType *event_type1,
- LttEventType *event_type2,
- LttField *field1, LttField *field2)
-{
- guint different = 0;
- LttType *type1;
- LttType *type2;
-
- if(field1 == NULL) {
- if(field2 == NULL) goto end;
- else {
- different = 1;
- goto end;
- }
- } else if(field2 == NULL) {
- different = 1;
- goto end;
- }
-
- type1 = &field1->field_type;
- type2 = &field2->field_type;
-
- if(type1->type_class != type2->type_class) {
- different = 1;
- goto end;
- }
- if(type1->network != type2->network) {
- different = 1;
- goto end;
- }
-
- switch(type1->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(field1->field_size != field2->field_size)
- different = 1;
- break;
- case LTT_STRING:
- break;
- case LTT_ARRAY:
- {
- LttField *child1 = &g_array_index(type1->fields, LttField, 0);
- LttField *child2 = &g_array_index(type2->fields, LttField, 0);
-
- if(type1->size != type2->size)
- different = 1;
- if(check_fields_compatibility(event_type1, event_type2, child1, child2))
- different = 1;
- }
- break;
- case LTT_SEQUENCE:
- {
- LttField *child1 = &g_array_index(type1->fields, LttField, 1);
- LttField *child2 = &g_array_index(type2->fields, LttField, 1);
-
- if(check_fields_compatibility(event_type1, event_type2, child1, child2))
- different = 1;
- }
- break;
- case LTT_STRUCT:
- case LTT_UNION:
- {
- LttField *child;
- guint i;
-
- if(type1->fields->len != type2->fields->len) {
- different = 1;
- goto end;
- }
-
- for(i=0; i< type1->fields->len; i++) {
- LttField *child1;
- LttField *child2;
- child1 = &g_array_index(type1->fields, LttField, i);
- child2 = &g_array_index(type2->fields, LttField, i);
- different = check_fields_compatibility(event_type1,
- event_type2, child1, child2);
-
- if(different) break;
- }
- }
- break;
- case LTT_NONE:
- default:
- g_error("check_fields_compatibility : unknown type");
- }
-
-end:
- return different;
-}
-#endif //0
-
-#if 0
-gint check_fields_compatibility(LttEventType *event_type1,
- LttEventType *event_type2,
- LttField *field1, LttField *field2)
-{
- guint different = 0;
- guint i;
- LttType *type1;
- LttType *type2;
-
- if(field1 == NULL) {
- if(field2 == NULL) goto end;
- else {
- different = 1;
- goto end;
- }
- } else if(field2 == NULL) {
- different = 1;
- goto end;
- }
-
- g_assert(field1->fixed_root != FIELD_UNKNOWN);
- g_assert(field2->fixed_root != FIELD_UNKNOWN);
- g_assert(field1->fixed_parent != FIELD_UNKNOWN);
- g_assert(field2->fixed_parent != FIELD_UNKNOWN);
- g_assert(field1->fixed_size != FIELD_UNKNOWN);
- g_assert(field2->fixed_size != FIELD_UNKNOWN);
-
- type1 = field1->field_type;
- type2 = field2->field_type;
-
- if(type1->type_class != type2->type_class) {
- different = 1;
- goto end;
- }
- if(type1->element_name != type2->element_name) {
- different = 1;
- goto end;
- }
-
- switch(type1->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_POINTER:
- case LTT_LONG:
- case LTT_ULONG:
- case LTT_SIZE_T:
- case LTT_SSIZE_T:
- case LTT_OFF_T:
- if(field1->field_size != field2->field_size) {
- different = 1;
- goto end;
- }
- break;
- case LTT_ENUM:
- if(type1->element_number != type2->element_number) {
- different = 1;
- goto end;
- }
- for(i=0;i<type1->element_number;i++) {
- if(type1->enum_strings[i] != type2->enum_strings[i]) {
- different = 1;
- goto end;
- }
- }
- break;
- case LTT_SEQUENCE:
- /* Two elements : size and child */
- g_assert(type1->element_number != type2->element_number);
- for(i=0;i<type1->element_number;i++) {
- if(check_fields_compatibility(event_type1, event_type2,
- field1->child[0], field2->child[0])) {
- different = 1;
- goto end;
- }
- }
- break;
- case LTT_STRING:
- break;
- case LTT_ARRAY:
- if(field1->field_size != field2->field_size) {
- different = 1;
- goto end;
- }
- /* Two elements : size and child */
- g_assert(type1->element_number != type2->element_number);
- for(i=0;i<type1->element_number;i++) {
- if(check_fields_compatibility(event_type1, event_type2,
- field1->child[0], field2->child[0])) {
- different = 1;
- goto end;
- }
- }
- break;
- case LTT_STRUCT:
- case LTT_UNION:
- if(type1->element_number != type2->element_number) {
- different = 1;
- break;
- }
- for(i=0;i<type1->element_number;i++) {
- if(check_fields_compatibility(event_type1, event_type2,
- field1->child[0], field2->child[0])) {
- different = 1;
- goto end;
- }
- }
- break;
- }
-end:
- return different;
-}
-#endif //0
-
/*****************************************************************************
*Function name
projects / lttv.git / commitdiff
