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1 | #ifndef EVENT_H |
2 | #define EVENT_H |
3 | |
4 | #include <ltt/ltt.h> |
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5 | |
6 | /* Events and their content, including the raw data, are only valid |
7 | until reading another event from the same tracefile. |
8 | Indeed, since event reading is critical to the performance, |
9 | the memory associated with an event may be reused at each read. */ |
10 | |
11 | |
12 | /* Obtain the tracefile unique integer id associated with the type of |
13 | this event */ |
14 | |
15 | unsigned ltt_event_eventtype_id(ltt_event *e); |
16 | |
17 | |
18 | /* Facility and type for the event */ |
19 | |
20 | ltt_facility *ltt_event_facility(ltt_event *e); |
21 | |
22 | ltt_eventtype *ltt_event_eventtype(ltt_event *e); |
23 | |
24 | ltt_field *ltt_event_field(ltt_event *e); |
25 | |
26 | /* Time and cycle count for the event */ |
27 | |
28 | ltt_time ltt_event_time(ltt_event *e); |
29 | |
30 | ltt_cycle_count ltt_event_cycle_count(ltt_event *e); |
31 | |
32 | |
33 | /* CPU id and system name of the event */ |
34 | |
35 | unsigned ltt_event_cpu_id(ltt_event *e); |
36 | |
37 | char *ltt_event_system_name(ltt_event *e); |
38 | |
39 | |
40 | /* Pointer to the raw data for the event. This should not be used directly |
41 | unless prepared to do all the architecture specific conversions. */ |
42 | |
43 | void *ltt_event_data(ltt_event *e); |
44 | |
45 | |
46 | /* The number of elements in a sequence field is specific to each event. |
47 | This function returns the number of elements for an array or sequence |
48 | field in an event. */ |
49 | |
50 | unsigned ltt_event_field_element_number(ltt_event *e, ltt_field *f); |
51 | |
52 | |
53 | /* Set the currently selected element for a sequence or array field. */ |
54 | |
55 | int ltt_event_field_element_select(ltt_event *e, ltt_field *f, unsigned i); |
56 | |
57 | |
58 | /* These functions extract data from an event after architecture specific |
59 | conversions. */ |
60 | |
61 | unsigned ltt_event_get_unsigned(ltt_event *e, ltt_field *f); |
62 | |
63 | int ltt_event_get_int(ltt_event *e, ltt_field *f); |
64 | |
65 | unsigned long ltt_event_get_long_unsigned(ltt_event *e, ltt_field *f); |
66 | |
67 | long int ltt_event_get_long_int(ltt_event *e, ltt_field *f); |
68 | |
69 | float ltt_event_get_float(ltt_event *e, ltt_field *f); |
70 | |
71 | double ltt_event_get_double(ltt_event *e, ltt_field *f); |
72 | |
73 | |
74 | /* The string obtained is only valid until the next read from |
75 | the same tracefile. */ |
76 | |
77 | char *ltt_event_get_string(ltt_event *e, ltt_field *f); |
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78 | |
79 | #endif // EVENT_H |