ltt/branches/poly/ltt/event.c

   1
   2 #include <ltt/event.h>
   3
   4 /*****************************************************************************
   5  *Function name
   6  *    ltt_event_position_get : get the event position data
   7  *Input params
   8  *    e                  : an instance of an event type
   9  *    ep                 : a pointer to event's position structure
  10  *    tf                 : tracefile pointer
  11  *    block              : current block
  12  *    offset             : current offset
  13  *    tsc                : current tsc
  14  ****************************************************************************/
  15 void ltt_event_position_get(LttEventPosition *ep, LttTracefile **tf,
  16         guint *block, guint *offset, guint64 *tsc)
  17 {
  18   *tf = ep->tracefile;
  19   *block = ep->block;
  20   *offset = ep->offset;
  21   *tsc = ep->tsc;
  22 }
  23
  24
  25 void ltt_event_position_set(LttEventPosition *ep, LttTracefile *tf,
  26         guint block, guint offset, guint64 tsc)
  27 {
  28   ep->tracefile = tf;
  29   ep->block = block;
  30   ep->offset = offset;
  31   ep->tsc = tsc;
  32 }
  33
  34
  35 /*****************************************************************************
  36  *Function name
  37  *    ltt_event_position : get the event's position
  38  *Input params
  39  *    e                  : an instance of an event type
  40  *    ep                 : a pointer to event's position structure
  41  ****************************************************************************/
  42
  43 void ltt_event_position(LttEvent *e, LttEventPosition *ep)
  44 {
  45   ep->tracefile = e->tracefile;
  46   ep->block = e->block;
  47   ep->offset = e->offset;
  48   ep->tsc = e->tsc;
  49 }
  50
  51 LttEventPosition * ltt_event_position_new()
  52 {
  53   return g_new(LttEventPosition, 1);
  54 }
  55
  56
  57 /*****************************************************************************
  58  * Function name
  59  *    ltt_event_position_compare : compare two positions
  60  *    A NULL value is infinite.
  61  * Input params
  62  *    ep1                    : a pointer to event's position structure
  63  *    ep2                    : a pointer to event's position structure
  64  * Return
  65  *    -1 is ep1 < ep2
  66  *    1 if ep1 > ep2
  67  *    0 if ep1 == ep2
  68  ****************************************************************************/
  69
  70
  71 gint ltt_event_position_compare(const LttEventPosition *ep1,
  72                                 const LttEventPosition *ep2)
  73 {
  74   if(ep1 == NULL && ep2 == NULL)
  75       return 0;
  76   if(ep1 != NULL && ep2 == NULL)
  77       return -1;
  78   if(ep1 == NULL && ep2 != NULL)
  79       return 1;
  80
  81    if(ep1->tracefile != ep2->tracefile)
  82     g_error("ltt_event_position_compare on different tracefiles makes no sense");
  83
  84   if(ep1->block < ep2->block)
  85     return -1;
  86   if(ep1->block > ep2->block)
  87     return 1;
  88   if(ep1->offset < ep2->offset)
  89     return -1;
  90   if(ep1->offset > ep2->offset)
  91     return 1;
  92   return 0;
  93 }
  94
  95 /*****************************************************************************
  96  * Function name
  97  *    ltt_event_position_copy : copy position
  98  * Input params
  99  *    src                    : a pointer to event's position structure source
 100  *    dest                   : a pointer to event's position structure dest
 101  * Return
 102  *    void
 103  ****************************************************************************/
 104 void ltt_event_position_copy(LttEventPosition *dest,
 105                              const LttEventPosition *src)
 106 {
 107   if(src == NULL)
 108     dest = NULL;
 109   else
 110     *dest = *src;
 111 }
 112
 113
 114
 115 LttTracefile *ltt_event_position_tracefile(LttEventPosition *ep)
 116 {
 117   return ep->tracefile;
 118 }
 119