2 /* Events and their content, including the raw data, are only valid
3 until reading another event from the same tracefile.
4 Indeed, since event reading is critical to the performance,
5 the memory associated with an event may be reused at each read. */
8 /* Obtain the tracefile unique integer id associated with the type of
11 unsigned ltt_event_eventtype_id(ltt_event
*e
);
14 /* Facility and type for the event */
16 ltt_facility
*ltt_event_facility(ltt_event
*e
);
18 ltt_eventtype
*ltt_event_eventtype(ltt_event
*e
);
20 ltt_field
*ltt_event_field(ltt_event
*e
);
22 /* Time and cycle count for the event */
24 ltt_time
ltt_event_time(ltt_event
*e
);
26 ltt_cycle_count
ltt_event_cycle_count(ltt_event
*e
);
29 /* CPU id and system name of the event */
31 unsigned ltt_event_cpu_id(ltt_event
*e
);
33 char *ltt_event_system_name(ltt_event
*e
);
36 /* Pointer to the raw data for the event. This should not be used directly
37 unless prepared to do all the architecture specific conversions. */
39 void *ltt_event_data(ltt_event
*e
);
42 /* The number of elements in a sequence field is specific to each event.
43 This function returns the number of elements for an array or sequence
46 unsigned ltt_event_field_element_number(ltt_event
*e
, ltt_field
*f
);
49 /* Set the currently selected element for a sequence or array field. */
51 int ltt_event_field_element_select(ltt_event
*e
, ltt_field
*f
, unsigned i
);
54 /* These functions extract data from an event after architecture specific
57 unsigned ltt_event_get_unsigned(ltt_event
*e
, ltt_field
*f
);
59 int ltt_event_get_int(ltt_event
*e
, ltt_field
*f
);
61 unsigned long ltt_event_get_long_unsigned(ltt_event
*e
, ltt_field
*f
);
63 long int ltt_event_get_long_int(ltt_event
*e
, ltt_field
*f
);
65 float ltt_event_get_float(ltt_event
*e
, ltt_field
*f
);
67 double ltt_event_get_double(ltt_event
*e
, ltt_field
*f
);
70 /* The string obtained is only valid until the next read from
71 the same tracefile. */
73 char *ltt_event_get_string(ltt_event
*e
, ltt_field
*f
);
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