5 /* Different types allowed */
7 typedef enum _LttTypeEnum
8 { LTT_INT
, LTT_UINT
, LTT_FLOAT
, LTT_STRING
, LTT_ENUM
, LTT_ARRAY
,
9 LTT_SEQUENCE
, LTT_STRUCT
, LTT_UNION
15 /* All event types, data types and fields belong to their trace and
16 are released at the same time. */
18 /* Obtain the name, description, facility, facility relative id, global id,
19 type and root field for an eventtype */
21 char *ltt_eventtype_name(LttEventType
*et
);
23 char *ltt_eventtype_description(LttEventType
*et
);
25 LttFacility
*ltt_eventtype_facility(LttEventType
*et
);
27 unsigned ltt_eventtype_relative_id(LttEventType
*et
);
29 unsigned ltt_eventtype_id(LttEventType
*et
);
31 LttType
*ltt_eventtype_type(LttEventType
*et
);
33 LttField
*ltt_eventtype_field(LttEventType
*et
);
36 /* obtain the type name and size. The size is the number of bytes for
37 primitive types (INT, UINT, FLOAT, ENUM), or the size for the unsigned
38 integer length count for sequences. */
40 char *ltt_type_name(LttType
*t
);
42 LttTypeEnum
ltt_type_class(LttType
*t
);
44 unsigned ltt_type_size(LttTrace
*trace
, LttType
*t
);
47 /* The type of nested elements for arrays and sequences. */
49 LttType
*ltt_type_element_type(LttType
*t
);
52 /* The number of elements for arrays. */
54 unsigned ltt_type_element_number(LttType
*t
);
57 /* The number of data members for structures and unions. */
59 unsigned ltt_type_member_number(LttType
*t
);
62 /* The type of a data member in a structure. */
64 LttType
*ltt_type_member_type(LttType
*t
, unsigned i
, char ** name
);
67 /* For enumerations, obtain the symbolic string associated with a value
68 (0 to n - 1 for an enumeration of n elements). */
70 char *ltt_enum_string_get(LttType
*t
, unsigned i
);
73 /* The fields form a tree representing a depth first search of the
74 corresponding event type directed acyclic graph. Fields for arrays and
75 sequences simply point to one nested field representing the currently
76 selected element among all the (identically typed) elements. For structures,
77 a nested field exists for each data member. Each field stores the
78 platform/trace specific offset values (for efficient access) and
79 points back to the corresponding LttType for the rest. */
81 LttField
*ltt_field_element(LttField
*f
);
83 LttField
*ltt_field_member(LttField
*f
, unsigned i
);
85 LttType
*ltt_field_type(LttField
*f
);
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