d2007fbd |
1 | /* |
2 | * Marker support header. |
3 | * |
4 | * Mathieu Desnoyers, Auguest 2007 |
5 | * License: LGPL. |
6 | */ |
7 | |
8 | #include <ltt/trace.h> |
9 | #include <ltt/compiler.h> |
10 | |
11 | struct marker_info { |
12 | char *name; |
13 | char *format; |
14 | unsigned long size; /* size if known statically, else 0 */ |
15 | }; |
16 | |
17 | enum marker_id { |
18 | MARKER_ID_SET_MARKER_ID = 0, /* Static IDs available (range 0-7) */ |
19 | MARKER_ID_SET_MARKER_FORMAT, |
20 | MARKER_ID_HEARTBEAT_32, |
21 | MARKER_ID_HEARTBEAT_64, |
22 | MARKER_ID_COMPACT, /* Compact IDs (range: 8-127) */ |
23 | MARKER_ID_DYNAMIC, /* Dynamic IDs (range: 128-65535) */ |
24 | }; |
25 | |
26 | static inline uint16_t marker_get_id_from_info(LttTrace *trace, |
27 | struct marker_info *info) |
28 | { |
29 | return ((unsigned long)info - (unsigned long)trace->markers->data) |
30 | / sizeof(struct marker_info); |
31 | } |
32 | |
33 | static inline struct marker_info *marker_get_info_from_id(LttTrace *trace, |
34 | uint16_t id) |
35 | { |
36 | if (unlikely(trace->markers->len < id)) |
37 | return NULL; |
38 | return &g_array_index(trace->markers, struct marker_info, id); |
39 | } |
40 | |
41 | int marker_format_event(LttTrace *trace, const char *name, const char *format); |
42 | int marker_id_event(LttTrace *trace, const char *name, uint16_t id); |
43 | int allocate_marker_data(LttTrace *trace); |
44 | int destroy_marker_data(LttTrace *trace); |