| 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); |