ltt/marker-field.h

   1 #ifndef _LTT_MARKERS_FIELD_H
   2 #define _LTT_MARKERS_FIELD_H
   3
   4 /*
   5  * Marker field support header.
   6  *
   7  * Mathieu Desnoyers, August 2007
   8  * License: LGPL.
   9  */
  10
  11 #include <glib.h>
  12
  13 enum ltt_type {
  14         LTT_TYPE_SIGNED_INT,
  15         LTT_TYPE_UNSIGNED_INT,
  16         LTT_TYPE_POINTER,
  17         LTT_TYPE_STRING,
  18         LTT_TYPE_COMPACT,
  19         LTT_TYPE_NONE,
  20 };
  21
  22 /*
  23  * Fields "offset" and "size" below are only valid while the event is being
  24  * read. They are also being shared with events of the same type coming from
  25  * other per-cpu tracefiles. Therefore, the "LttEvent" fields_offsets offset and
  26  * size should be used rather than these.
  27  */
  28 struct marker_field {
  29   GQuark name;
  30   enum ltt_type type;
  31   unsigned int index;   /* Field index within the event */
  32   unsigned long _offset; /* offset in the event data, USED ONLY INTERNALLY BY LIB */
  33   unsigned long _size;  /* size of field. USED ONLY INTERNALLY BY LIB */
  34   unsigned long alignment;
  35   unsigned long attributes;
  36   int static_offset;    /* boolean - private - is the field offset statically
  37                          * known with the preceding types ? */
  38   GString *fmt;
  39 };
  40
  41 static inline GQuark marker_field_get_name(struct marker_field *field)
  42 {
  43         return field->name;
  44 }
  45
  46 static inline enum ltt_type marker_field_get_type(struct marker_field *field)
  47 {
  48         return field->type;
  49 }
  50
  51 /*
  52  * Returns 0 if size is not known statically.
  53  */
  54 static inline long marker_field_get_size(struct marker_field *field)
  55 {
  56         return field->_size;
  57 }
  58
  59 static inline unsigned int marker_field_get_index(struct marker_field *field)
  60 {
  61         return field->index;
  62 }
  63
  64 #endif //_LTT_MARKERS_FIELD_H