5 * Marker support header.
7 * Mathieu Desnoyers, August 2007
12 #include <ltt/trace.h>
13 #include <ltt/compiler.h>
14 #include <ltt/marker-field.h>
15 #include <ltt/trace.h>
17 #define LTT_ATTRIBUTE_COMPACT (1<<0)
18 #define LTT_ATTRIBUTE_NETWORK_BYTE_ORDER (1<<1)
20 /* static ids 0-7 reserved for internal use. */
21 #define MARKER_CORE_IDS 8
22 /* dynamic ids 8-127 reserved for compact events. */
23 #define MARKER_COMPACT_IDS 128
30 long size
; /* size if known statically, else -1 */
31 GArray
*fields
; /* Array of struct marker_field */
32 guint8 int_size
, long_size
, pointer_size
, size_t_size
, alignment
;
33 struct marker_info
*next
; /* Linked list of markers with the same name */
37 MARKER_ID_SET_MARKER_ID
= 0, /* Static IDs available (range 0-7) */
38 MARKER_ID_SET_MARKER_FORMAT
,
39 MARKER_ID_HEARTBEAT_32
,
40 MARKER_ID_HEARTBEAT_64
,
41 MARKER_ID_COMPACT
, /* Compact IDs (range: 8-127) */
42 MARKER_ID_DYNAMIC
, /* Dynamic IDs (range: 128-65535) */
45 static inline guint16
marker_get_id_from_info(LttTrace
*trace
,
46 struct marker_info
*info
)
48 return ((unsigned long)info
- (unsigned long)trace
->markers
->data
)
49 / sizeof(struct marker_info
);
52 static inline struct marker_info
*marker_get_info_from_id(LttTrace
*trace
,
55 if (unlikely(trace
->markers
->len
<= id
))
57 return &g_array_index(trace
->markers
, struct marker_info
, id
);
61 * Returns the head of the marker info list for that name.
63 static inline struct marker_info
*marker_get_info_from_name(LttTrace
*trace
,
66 gpointer orig_key
, value
;
69 res
= g_hash_table_lookup_extended(trace
->markers_hash
,
70 (gconstpointer
)(gulong
)name
, &orig_key
, &value
);
73 return marker_get_info_from_id(trace
, (guint16
)(gulong
)value
);
76 static inline char *marker_get_format_from_name(LttTrace
*trace
,
79 gpointer orig_key
, value
;
82 res
= g_hash_table_lookup_extended(trace
->markers_format_hash
,
83 (gconstpointer
)(gulong
)name
, &orig_key
, &value
);
89 static inline struct marker_field
*marker_get_field(struct marker_info
*info
,
92 return &g_array_index(info
->fields
, struct marker_field
, i
);
95 static inline unsigned int marker_get_num_fields(struct marker_info
*info
)
97 return info
->fields
->len
;
101 * for_each_marker_field - iterate over fields of a marker
102 * @field: struct marker_field * to use as iterator
103 * @info: marker info pointer
105 #define for_each_marker_field(field, info) \
106 for (field = marker_get_field(info, 0); \
107 field != marker_get_field(info, marker_get_num_fields(info)); \
110 int marker_format_event(LttTrace
*trace
, GQuark name
, const char *format
);
111 int marker_id_event(LttTrace
*trace
, GQuark name
, guint16 id
,
112 uint8_t int_size
, uint8_t long_size
, uint8_t pointer_size
,
113 uint8_t size_t_size
, uint8_t alignment
);
114 int allocate_marker_data(LttTrace
*trace
);
115 void destroy_marker_data(LttTrace
*trace
);
117 #endif //_LTT_MARKERS_H