ltt/branches/poly/ltt/event.c

   1 #include <stdio.h>
   2 #include <asm/types.h>
   3 #include <linux/byteorder/swab.h>
   4
   5 #include "parser.h"
   6 #include <ltt/ltt.h>
   7 #include "ltt-private.h"
   8 #include <ltt/event.h>
   9 #include <ltt/trace.h>
  10
  11 /*****************************************************************************
  12  *Function name
  13  *    ltt_event_refresh_fields   : refresh fields of an event
  14  *Input params
  15  *    offsetRoot      : offset from the root
  16  *    offsetParent    : offset from the parrent
  17  *    fld             : field
  18  *    evD             : event data
  19  *Return value
  20  *    int             : size of the field
  21  ****************************************************************************/
  22
  23 int ltt_event_refresh_fields(int offsetRoot,int offsetParent,
  24                              LttField * fld, void *evD)
  25 {
  26   int size, size1, element_number, i, offset1, offset2;
  27   LttType * type = fld->field_type;
  28
  29   if(type->type_class != LTT_STRUCT && type->type_class != LTT_ARRAY &&
  30      type->type_class != LTT_SEQUENCE && type->type_class != LTT_STRING){
  31     size = fld->field_size;
  32   }else if(type->type_class == LTT_ARRAY){
  33     element_number = (int) type->element_number;
  34     if(fld->field_fixed == 0){// has string or sequence
  35       size = 0;
  36       for(i=0;i<element_number;i++){
  37         size += ltt_event_refresh_fields(offsetRoot+size,size,
  38                                          fld->child[0], evD+size);
  39       }
  40     }else size = fld->field_size;
  41   }else if(type->type_class == LTT_SEQUENCE){
  42     size1 = fld->sequ_number_size;
  43     element_number = getIntNumber(size1,evD);
  44     type->element_number = element_number;
  45     if(fld->element_size > 0){
  46       size = element_number * fld->element_size;
  47     }else{//sequence has string or sequence
  48       size = 0;
  49       for(i=0;i<element_number;i++){
  50         size += ltt_event_refresh_fields(offsetRoot+size+size1,size+size1,
  51                                          fld->child[0], evD+size+size1);
  52       }
  53       size += size1;
  54     }
  55   }else if(type->type_class == LTT_STRING){
  56     size = strlen((char*)evD) + 1; //include end : '\0'
  57   }else if(type->type_class == LTT_STRUCT){
  58     element_number = (int) type->element_number;
  59     if(fld->field_fixed == 0){
  60       offset1 = offsetRoot;
  61       offset2 = 0;
  62       for(i=0;i<element_number;i++){
  63         size=ltt_event_refresh_fields(offset1,offset2,fld->child[i],evD+offset2);
  64         offset1 += size;
  65         offset2 += size;
  66       }
  67       size = offset2;
  68     }else size = fld->field_size;
  69   }
  70
  71   fld->offset_root     = offsetRoot;
  72   fld->offset_parent   = offsetParent;
  73   fld->fixed_root      = (offsetRoot==-1)   ? 0 : 1;
  74   fld->fixed_parent    = (offsetParent==-1) ? 0 : 1;
  75   fld->field_size      = size;
  76
  77   return size;
  78 }
  79
  80 /*****************************************************************************
  81  *Function name
  82  *    ltt_event_eventtype_id: get event type id
  83  *                            (base id + position of the event)
  84  *Input params
  85  *    e                     : an instance of an event type
  86  *Return value
  87  *    unsigned              : event type id
  88  ****************************************************************************/
  89
  90 unsigned ltt_event_eventtype_id(LttEvent *e)
  91 {
  92   return (unsigned) e->event_id;
  93 }
  94
  95 /*****************************************************************************
  96  *Function name
  97  *    ltt_event_facility : get the facility of the event
  98  *Input params
  99  *    e                  : an instance of an event type
 100  *Return value
 101  *    LttFacility *     : the facility of the event
 102  ****************************************************************************/
 103
 104 LttFacility *ltt_event_facility(LttEvent *e)
 105 {
 106   LttTrace * trace = e->tracefile->trace;
 107   unsigned id = e->event_id;
 108   return ltt_trace_facility_by_id(trace,id);
 109 }
 110
 111 /*****************************************************************************
 112  *Function name
 113  *    ltt_event_eventtype : get the event type of the event
 114  *Input params
 115  *    e                   : an instance of an event type
 116  *Return value
 117  *    LttEventType *     : the event type of the event
 118  ****************************************************************************/
 119
 120 LttEventType *ltt_event_eventtype(LttEvent *e)
 121 {
 122   LttFacility* facility = ltt_event_facility(e);
 123   if(!facility) return NULL;
 124   return facility->events[e->event_id - facility->base_id];
 125 }
 126
 127 /*****************************************************************************
 128  *Function name
 129  *    ltt_event_field : get the root field of the event
 130  *Input params
 131  *    e               : an instance of an event type
 132  *Return value
 133  *    LttField *      : the root field of the event
 134  ****************************************************************************/
 135
 136 LttField *ltt_event_field(LttEvent *e)
 137 {
 138   LttField * field;
 139   LttEventType * event_type = ltt_event_eventtype(e);
 140   if(!event_type) return NULL;
 141   field = event_type->root_field;
 142   if(!field) return NULL;
 143
 144   //check if the field need refresh
 145   if(e->which_block != event_type->latest_block ||
 146      e->which_event != event_type->latest_event){
 147
 148     event_type->latest_block = e->which_block;
 149     event_type->latest_event = e->which_event;
 150
 151     if(field->field_fixed == 1)return field;
 152
 153     //refresh the field
 154     ltt_event_refresh_fields(0, 0, field, e->data);
 155   }
 156   return field;
 157 }
 158
 159 /*****************************************************************************
 160  *Function name
 161  *    ltt_event_time : get the time of the event
 162  *Input params
 163  *    e              : an instance of an event type
 164  *Return value
 165  *    LttTime       : the time of the event
 166  ****************************************************************************/
 167
 168 LttTime ltt_event_time(LttEvent *e)
 169 {
 170   return e->event_time;
 171 }
 172
 173 /*****************************************************************************
 174  *Function name
 175  *    ltt_event_time : get the cycle count of the event
 176  *Input params
 177  *    e              : an instance of an event type
 178  *Return value
 179  *    LttCycleCount  : the cycle count of the event
 180  ****************************************************************************/
 181
 182 LttCycleCount ltt_event_cycle_count(LttEvent *e)
 183 {
 184   return e->event_cycle_count;
 185 }
 186
 187 /*****************************************************************************
 188  *Function name
 189  *    ltt_event_position : get the event's position
 190  *Input params
 191  *    e                  : an instance of an event type
 192  *    ep                 : a pointer to event's position structure
 193  ****************************************************************************/
 194
 195 void ltt_event_position(LttEvent *e, LttEventPosition *ep)
 196 {
 197   ep->block_num         = e->which_block;
 198   ep->event_num         = e->which_event;
 199   ep->event_time        = e->event_time;
 200   ep->event_cycle_count = e->event_cycle_count;
 201   ep->heart_beat_number = e->tracefile->cur_heart_beat_number;
 202   ep->old_position      = FALSE;
 203   ep->event_offset      = e->data - e->tracefile->buffer - EVENT_HEADER_SIZE ;
 204   ep->tf                = e->tracefile;
 205 }
 206
 207 LttEventPosition * ltt_event_position_new()
 208 {
 209   return g_new(LttEventPosition, 1);
 210 }
 211
 212 /*****************************************************************************
 213  *Function name
 214  *    ltt_event_position_get : get the block number and index of the event
 215  *Input params
 216  *    ep                     : a pointer to event's position structure
 217  *    block_number           : the block number of the event
 218  *    index_in_block         : the index of the event within the block
 219  ****************************************************************************/
 220
 221 void ltt_event_position_get(LttEventPosition *ep,
 222     unsigned *block_number, unsigned *index_in_block, LttTracefile ** tf)
 223 {
 224   *block_number   = ep->block_num;
 225   *index_in_block = ep->event_num;
 226   *tf             = ep->tf;
 227 }
 228
 229 /*****************************************************************************
 230  *Function name
 231  *    ltt_event_position_set : set the block number and index of the event
 232  *Input params
 233  *    ep                     : a pointer to event's position structure
 234  *    block_number           : the block number of the event
 235  *    index_in_block         : the index of the event within the block
 236  ****************************************************************************/
 237
 238 void ltt_event_position_set(LttEventPosition *ep,
 239     unsigned block_number, unsigned index_in_block)
 240 {
 241   ep->block_num = block_number;
 242   ep->event_num = index_in_block;
 243 }
 244
 245 /*****************************************************************************
 246  *Function name
 247  *    ltt_event_cpu_i: get the cpu id where the event happens
 248  *Input params
 249  *    e              : an instance of an event type
 250  *Return value
 251  *    unsigned       : the cpu id
 252  ****************************************************************************/
 253
 254 unsigned ltt_event_cpu_id(LttEvent *e)
 255 {
 256   return (unsigned)atoi(e->tracefile->name);
 257 }
 258
 259 /*****************************************************************************
 260  *Function name
 261  *    ltt_event_data : get the raw data for the event
 262  *Input params
 263  *    e              : an instance of an event type
 264  *Return value
 265  *    void *         : pointer to the raw data for the event
 266  ****************************************************************************/
 267
 268 void *ltt_event_data(LttEvent *e)
 269 {
 270   return e->data;
 271 }
 272
 273 /*****************************************************************************
 274  *Function name
 275  *    ltt_event_field_element_number
 276  *                   : The number of elements in a sequence field is specific
 277  *                     to each event. This function returns the number of
 278  *                     elements for an array or sequence field in an event.
 279  *Input params
 280  *    e              : an instance of an event type
 281  *    f              : a field of the instance
 282  *Return value
 283  *    unsigned       : the number of elements for an array/sequence field
 284  ****************************************************************************/
 285
 286 unsigned ltt_event_field_element_number(LttEvent *e, LttField *f)
 287 {
 288   if(f->field_type->type_class != LTT_ARRAY &&
 289      f->field_type->type_class != LTT_SEQUENCE)
 290     return 0;
 291
 292   if(f->field_type->type_class == LTT_ARRAY)
 293     return f->field_type->element_number;
 294   return (unsigned)  getIntNumber(f->sequ_number_size, e + f->offset_root);
 295 }
 296
 297 /*****************************************************************************
 298  *Function name
 299  *    ltt_event_field_element_select
 300  *                   : Set the currently selected element for a sequence or
 301  *                     array field
 302  *Input params
 303  *    e              : an instance of an event type
 304  *    f              : a field of the instance
 305  *    i              : the ith element
 306  ****************************************************************************/
 307
 308 void ltt_event_field_element_select(LttEvent *e, LttField *f, unsigned i)
 309 {
 310   unsigned element_number;
 311   LttField *fld;
 312   int k, size;
 313   void *evD;
 314
 315   if(f->field_type->type_class != LTT_ARRAY &&
 316      f->field_type->type_class != LTT_SEQUENCE)
 317     return ;
 318
 319   element_number  = ltt_event_field_element_number(e,f);
 320   if((element_number-1) < i || i < 0) return;
 321
 322   fld = f->child[0];
 323
 324   evD = e->data + f->offset_root;
 325   size = 0;
 326   for(k=0;k<i;k++){
 327     size += ltt_event_refresh_fields(f->offset_root+size,size, fld, evD+size);
 328   }
 329
 330   f->current_element = i - 1;
 331 }
 332
 333 /*****************************************************************************
 334  * These functions extract data from an event after architecture specific
 335  * conversions
 336  ****************************************************************************/
 337
 338 unsigned ltt_event_get_unsigned(LttEvent *e, LttField *f)
 339 {
 340   int revFlag = e->tracefile->trace->my_arch_endian ==
 341                 e->tracefile->trace->system_description->endian ? 0:1;
 342   LttTypeEnum t = f->field_type->type_class;
 343
 344   if(t != LTT_UINT && t != LTT_ENUM)
 345     g_error("The type of the field is not unsigned int\n");
 346
 347   if(f->field_size == 1){
 348     guint8 x = *(guint8 *)(e->data + f->offset_root);
 349     return (unsigned int) x;
 350   }else if(f->field_size == 2){
 351     guint16 x = *(guint16 *)(e->data + f->offset_root);
 352     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 353       return (unsigned int) (revFlag ? GUINT16_FROM_BE(x): x);
 354     else
 355       return (unsigned int) (revFlag ? GUINT16_FROM_LE(x): x);
 356   }else if(f->field_size == 4){
 357     guint32 x = *(guint32 *)(e->data + f->offset_root);
 358     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 359       return (unsigned int) (revFlag ? GUINT32_FROM_BE(x): x);
 360     else
 361       return (unsigned int) (revFlag ? GUINT32_FROM_LE(x): x);
 362   }else if(f->field_size == 8){
 363     guint64 x = *(guint64 *)(e->data + f->offset_root);
 364     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 365       return (unsigned int) (revFlag ? GUINT64_FROM_BE(x): x);
 366     else
 367       return (unsigned int) (revFlag ? GUINT64_FROM_LE(x): x);
 368   }
 369 }
 370
 371 int ltt_event_get_int(LttEvent *e, LttField *f)
 372 {
 373   int revFlag = e->tracefile->trace->my_arch_endian ==
 374                 e->tracefile->trace->system_description->endian ? 0:1;
 375
 376   if(f->field_type->type_class != LTT_INT)
 377     g_error("The type of the field is not int\n");
 378
 379   if(f->field_size == 1){
 380     gint8 x = *(gint8 *)(e->data + f->offset_root);
 381     return (int) x;
 382   }else if(f->field_size == 2){
 383     gint16 x = *(gint16 *)(e->data + f->offset_root);
 384     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 385       return (int) (revFlag ? GINT16_FROM_BE(x): x);
 386     else
 387       return (int) (revFlag ? GINT16_FROM_LE(x): x);
 388   }else if(f->field_size == 4){
 389     gint32 x = *(gint32 *)(e->data + f->offset_root);
 390     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 391       return (int) (revFlag ? GINT32_FROM_BE(x): x);
 392     else
 393       return (int) (revFlag ? GINT32_FROM_LE(x): x);
 394   }else if(f->field_size == 8){
 395     gint64 x = *(gint64 *)(e->data + f->offset_root);
 396     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 397       return (int) (revFlag ? GINT64_FROM_BE(x): x);
 398     else
 399       return (int) (revFlag ? GINT64_FROM_LE(x): x);
 400   }
 401 }
 402
 403 unsigned long ltt_event_get_long_unsigned(LttEvent *e, LttField *f)
 404 {
 405   int revFlag = e->tracefile->trace->my_arch_endian ==
 406                 e->tracefile->trace->system_description->endian ? 0:1;
 407   LttTypeEnum t = f->field_type->type_class;
 408
 409   if(t != LTT_UINT && t != LTT_ENUM)
 410     g_error("The type of the field is not unsigned long\n");
 411
 412   if(f->field_size == 1){
 413     guint8 x = *(guint8 *)(e->data + f->offset_root);
 414     return (unsigned long) x;
 415   }else if(f->field_size == 2){
 416     guint16 x = *(guint16 *)(e->data + f->offset_root);
 417     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 418       return (unsigned long) (revFlag ? GUINT16_FROM_BE(x): x);
 419     else
 420       return (unsigned long) (revFlag ? GUINT16_FROM_LE(x): x);
 421   }else if(f->field_size == 4){
 422     guint32 x = *(guint32 *)(e->data + f->offset_root);
 423     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 424       return (unsigned long) (revFlag ? GUINT32_FROM_BE(x): x);
 425     else
 426       return (unsigned long) (revFlag ? GUINT32_FROM_LE(x): x);
 427   }else if(f->field_size == 8){
 428     guint64 x = *(guint64 *)(e->data + f->offset_root);
 429     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 430       return (unsigned long) (revFlag ? GUINT64_FROM_BE(x): x);
 431     else
 432       return (unsigned long) (revFlag ? GUINT64_FROM_LE(x): x);
 433   }
 434 }
 435
 436 long int ltt_event_get_long_int(LttEvent *e, LttField *f)
 437 {
 438   int revFlag = e->tracefile->trace->my_arch_endian ==
 439                 e->tracefile->trace->system_description->endian ? 0:1;
 440
 441   if( f->field_type->type_class != LTT_INT)
 442     g_error("The type of the field is not long int\n");
 443
 444   if(f->field_size == 1){
 445     gint8 x = *(gint8 *)(e->data + f->offset_root);
 446     return (long) x;
 447   }else if(f->field_size == 2){
 448     gint16 x = *(gint16 *)(e->data + f->offset_root);
 449     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 450       return (long) (revFlag ? GINT16_FROM_BE(x): x);
 451     else
 452       return (long) (revFlag ? GINT16_FROM_LE(x): x);
 453   }else if(f->field_size == 4){
 454     gint32 x = *(gint32 *)(e->data + f->offset_root);
 455     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 456       return (long) (revFlag ? GINT32_FROM_BE(x): x);
 457     else
 458       return (long) (revFlag ? GINT32_FROM_LE(x): x);
 459   }else if(f->field_size == 8){
 460     gint64 x = *(gint64 *)(e->data + f->offset_root);
 461     if(e->tracefile->trace->my_arch_endian == LTT_LITTLE_ENDIAN)
 462       return (long) (revFlag ? GINT64_FROM_BE(x): x);
 463     else
 464       return (long) (revFlag ? GINT64_FROM_LE(x): x);
 465   }
 466 }
 467
 468 float ltt_event_get_float(LttEvent *e, LttField *f)
 469 {
 470   int revFlag = e->tracefile->trace->my_arch_endian ==
 471                 e->tracefile->trace->system_description->endian ? 0:1;
 472
 473   if(f->field_type->type_class != LTT_FLOAT ||
 474      (f->field_type->type_class == LTT_FLOAT && f->field_size != 4))
 475     g_error("The type of the field is not float\n");
 476
 477   if(revFlag == 0) return *(float *)(e->data + f->offset_root);
 478   else{
 479     guint32 aInt;
 480     memcpy((void*)&aInt, e->data + f->offset_root, 4);
 481     aInt = ___swab32(aInt);
 482     return *((float*)&aInt);
 483   }
 484 }
 485
 486 double ltt_event_get_double(LttEvent *e, LttField *f)
 487 {
 488   int revFlag = e->tracefile->trace->my_arch_endian ==
 489                 e->tracefile->trace->system_description->endian ? 0:1;
 490
 491   if(f->field_type->type_class != LTT_FLOAT ||
 492      (f->field_type->type_class == LTT_FLOAT && f->field_size != 8))
 493     g_error("The type of the field is not double\n");
 494
 495   if(revFlag == 0) return *(double *)(e->data + f->offset_root);
 496   else{
 497     guint64 aInt;
 498     memcpy((void*)&aInt, e->data + f->offset_root, 8);
 499     aInt = ___swab64(aInt);
 500     return *((double *)&aInt);
 501   }
 502 }
 503
 504 /*****************************************************************************
 505  * The string obtained is only valid until the next read from
 506  * the same tracefile.
 507  ****************************************************************************/
 508
 509 char *ltt_event_get_string(LttEvent *e, LttField *f)
 510 {
 511   if(f->field_type->type_class != LTT_STRING)
 512     g_error("The field contains no string\n");
 513   return (char*)g_strdup((char*)(e->data + f->offset_root));
 514 }