prvm_edict.c

   1 /*
   2 Copyright (C) 1996-1997 Id Software, Inc.
   3
   4 This program is free software; you can redistribute it and/or
   5 modify it under the terms of the GNU General Public License
   6 as published by the Free Software Foundation; either version 2
   7 of the License, or (at your option) any later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  12
  13 See the GNU General Public License for more details.
  14
  15 You should have received a copy of the GNU General Public License
  16 along with this program; if not, write to the Free Software
  17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  18
  19 */
  20 // AK new vm
  21
  22 #include "quakedef.h"
  23 #include "progsvm.h"
  24
  25 prvm_prog_t *prog;
  26
  27 static prvm_prog_t prog_list[PRVM_MAXPROGS];
  28
  29 int             prvm_type_size[8] = {1,sizeof(string_t)/4,1,3,1,1,sizeof(func_t)/4,sizeof(void *)/4};
  30
  31 ddef_t *PRVM_ED_FieldAtOfs(int ofs);
  32 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash);
  33
  34 // LordHavoc: prints every opcode as it executes - warning: this is significant spew
  35 cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as it is executed (only for really thorough debugging!)"};
  36 // LordHavoc: counts usage of each QuakeC statement
  37 cvar_t prvm_statementprofiling = {0, "prvm_statementprofiling", "0", "counts how many times each QuakeC statement has been executed, these counts are displayed in prvm_printfunction output (if enabled)"};
  38 cvar_t prvm_backtraceforwarnings = {0, "prvm_backtraceforwarnings", "0", "print a backtrace for warnings too"};
  39 cvar_t prvm_leaktest = {0, "prvm_leaktest", "0", "try to detect memory leaks in strings or entities"};
  40 cvar_t prvm_leaktest_ignore_classnames = {0, "prvm_leaktest_ignore_classnames", "", "classnames of entities to NOT leak check because they are found by find(world, classname, ...) but are actually spawned by QC code (NOT map entities)"};
  41 cvar_t prvm_errordump = {0, "prvm_errordump", "0", "write a savegame on crash to crash-server.dmp"};
  42 cvar_t prvm_reuseedicts_startuptime = {0, "prvm_reuseedicts_startuptime", "2", "allows immediate re-use of freed entity slots during start of new level (value in seconds)"};
  43 cvar_t prvm_reuseedicts_neverinsameframe = {0, "prvm_reuseedicts_neverinsameframe", "1", "never allows re-use of freed entity slots during same frame"};
  44
  45 qboolean prvm_runawaycheck = true;
  46
  47 // LordHavoc: optional runtime bounds checking (speed drain, but worth it for security, on by default - breaks most QCCX features (used by CRMod and others))
  48 // enables detection of out of bounds memory access in the QuakeC code being run (in other words, prevents really exceedingly bad QuakeC code from doing nasty things to your computer)
  49 qboolean prvm_boundscheck = true;
  50
  51 extern sizebuf_t vm_tempstringsbuf;
  52
  53 //============================================================================
  54 // mempool handling
  55
  56 /*
  57 ===============
  58 PRVM_MEM_Alloc
  59 ===============
  60 */
  61 void PRVM_MEM_Alloc(void)
  62 {
  63         int i;
  64
  65         // reserve space for the null entity aka world
  66         // check bound of max_edicts
  67         prog->max_edicts = bound(1 + prog->reserved_edicts, prog->max_edicts, prog->limit_edicts);
  68         prog->num_edicts = bound(1 + prog->reserved_edicts, prog->num_edicts, prog->max_edicts);
  69
  70         // edictprivate_size has to be min as big prvm_edict_private_t
  71         prog->edictprivate_size = max(prog->edictprivate_size,(int)sizeof(prvm_edict_private_t));
  72
  73         // alloc edicts
  74         prog->edicts = (prvm_edict_t *)Mem_Alloc(prog->progs_mempool,prog->limit_edicts * sizeof(prvm_edict_t));
  75
  76         // alloc edict private space
  77         prog->edictprivate = Mem_Alloc(prog->progs_mempool, prog->max_edicts * prog->edictprivate_size);
  78
  79         // alloc edict fields
  80         prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
  81         prog->edictsfields = (vec_t *)Mem_Alloc(prog->progs_mempool, prog->entityfieldsarea * sizeof(vec_t));
  82
  83         // set edict pointers
  84         for(i = 0; i < prog->max_edicts; i++)
  85         {
  86                 prog->edicts[i].priv.required = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
  87                 prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
  88         }
  89 }
  90
  91 /*
  92 ===============
  93 PRVM_MEM_IncreaseEdicts
  94 ===============
  95 */
  96 void PRVM_MEM_IncreaseEdicts(void)
  97 {
  98         int             i;
  99
 100         if(prog->max_edicts >= prog->limit_edicts)
 101                 return;
 102
 103         PRVM_GCALL(begin_increase_edicts)();
 104
 105         // increase edicts
 106         prog->max_edicts = min(prog->max_edicts + 256, prog->limit_edicts);
 107
 108         prog->entityfieldsarea = prog->entityfields * prog->max_edicts;
 109         prog->edictsfields = (vec_t*)Mem_Realloc(prog->progs_mempool, (void *)prog->edictsfields, prog->entityfieldsarea * sizeof(vec_t));
 110         prog->edictprivate = (void *)Mem_Realloc(prog->progs_mempool, (void *)prog->edictprivate, prog->max_edicts * prog->edictprivate_size);
 111
 112         //set e and v pointers
 113         for(i = 0; i < prog->max_edicts; i++)
 114         {
 115                 prog->edicts[i].priv.required  = (prvm_edict_private_t *)((unsigned char  *)prog->edictprivate + i * prog->edictprivate_size);
 116                 prog->edicts[i].fields.vp = prog->edictsfields + i * prog->entityfields;
 117         }
 118
 119         PRVM_GCALL(end_increase_edicts)();
 120 }
 121
 122 //============================================================================
 123 // normal prvm
 124
 125 int PRVM_ED_FindFieldOffset(const char *field)
 126 {
 127         ddef_t *d;
 128         d = PRVM_ED_FindField(field);
 129         if (!d)
 130                 return -1;
 131         return d->ofs;
 132 }
 133
 134 int PRVM_ED_FindGlobalOffset(const char *global)
 135 {
 136         ddef_t *d;
 137         d = PRVM_ED_FindGlobal(global);
 138         if (!d)
 139                 return -1;
 140         return d->ofs;
 141 }
 142
 143 func_t PRVM_ED_FindFunctionOffset(const char *function)
 144 {
 145         mfunction_t *f;
 146         f = PRVM_ED_FindFunction(function);
 147         if (!f)
 148                 return 0;
 149         return (func_t)(f - prog->functions);
 150 }
 151
 152 qboolean PRVM_ProgLoaded(int prognr)
 153 {
 154         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
 155                 return FALSE;
 156
 157         return (prog_list[prognr].loaded ? TRUE : FALSE);
 158 }
 159
 160 /*
 161 =================
 162 PRVM_SetProgFromString
 163 =================
 164 */
 165 // perhaps add a return value when the str doesnt exist
 166 qboolean PRVM_SetProgFromString(const char *str)
 167 {
 168         int i = 0;
 169         for(; i < PRVM_MAXPROGS ; i++)
 170                 if(prog_list[i].name && !strcmp(prog_list[i].name,str))
 171                 {
 172                         if(prog_list[i].loaded)
 173                         {
 174                                 prog = &prog_list[i];
 175                                 return TRUE;
 176                         }
 177                         else
 178                         {
 179                                 Con_Printf("%s not loaded !\n",PRVM_NAME);
 180                                 return FALSE;
 181                         }
 182                 }
 183
 184         Con_Printf("Invalid program name %s !\n", str);
 185         return FALSE;
 186 }
 187
 188 /*
 189 =================
 190 PRVM_SetProg
 191 =================
 192 */
 193 void PRVM_SetProg(int prognr)
 194 {
 195         if(0 <= prognr && prognr < PRVM_MAXPROGS)
 196         {
 197                 if(prog_list[prognr].loaded)
 198                         prog = &prog_list[prognr];
 199                 else
 200                         PRVM_ERROR("%i not loaded !", prognr);
 201                 return;
 202         }
 203         PRVM_ERROR("Invalid program number %i", prognr);
 204 }
 205
 206 /*
 207 =================
 208 PRVM_ED_ClearEdict
 209
 210 Sets everything to NULL
 211 =================
 212 */
 213 void PRVM_ED_ClearEdict (prvm_edict_t *e)
 214 {
 215         memset (e->fields.vp, 0, prog->progs->entityfields * 4);
 216         e->priv.required->free = false;
 217
 218         // AK: Let the init_edict function determine if something needs to be initialized
 219         PRVM_GCALL(init_edict)(e);
 220 }
 221
 222 const char *PRVM_AllocationOrigin(void)
 223 {
 224         char *buf = NULL;
 225         if(prog->leaktest_active)
 226         if(prog->depth > 0) // actually in QC code and not just parsing the entities block of a map/savegame
 227         {
 228                 buf = (char *)PRVM_Alloc(128);
 229                 PRVM_ShortStackTrace(buf, 128);
 230         }
 231         return buf;
 232 }
 233
 234 /*
 235 =================
 236 PRVM_ED_CanAlloc
 237
 238 Returns if this particular edict could get allocated by PRVM_ED_Alloc
 239 =================
 240 */
 241 qboolean PRVM_ED_CanAlloc(prvm_edict_t *e)
 242 {
 243         if(!e->priv.required->free)
 244                 return false;
 245         if(realtime <= e->priv.required->freetime && prvm_reuseedicts_neverinsameframe.integer)
 246                 return false; // never allow reuse in same frame (causes networking trouble)
 247         if(e->priv.required->freetime < prog->starttime + prvm_reuseedicts_startuptime.value)
 248                 return true;
 249         if(realtime > e->priv.required->freetime + 1)
 250                 return true;
 251         return false; // entity slot still blocked because the entity was freed less than one second ago
 252 }
 253
 254 /*
 255 =================
 256 PRVM_ED_Alloc
 257
 258 Either finds a free edict, or allocates a new one.
 259 Try to avoid reusing an entity that was recently freed, because it
 260 can cause the client to think the entity morphed into something else
 261 instead of being removed and recreated, which can cause interpolated
 262 angles and bad trails.
 263 =================
 264 */
 265 prvm_edict_t *PRVM_ED_Alloc (void)
 266 {
 267         int                     i;
 268         prvm_edict_t            *e;
 269
 270         // the client qc dont need maxclients
 271         // thus it doesnt need to use svs.maxclients
 272         // AK:  changed i=svs.maxclients+1
 273         // AK:  changed so the edict 0 wont spawn -> used as reserved/world entity
 274         //              although the menu/client has no world
 275         for (i = prog->reserved_edicts + 1;i < prog->num_edicts;i++)
 276         {
 277                 e = PRVM_EDICT_NUM(i);
 278                 if(PRVM_ED_CanAlloc(e))
 279                 {
 280                         PRVM_ED_ClearEdict (e);
 281                         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 282                         return e;
 283                 }
 284         }
 285
 286         if (i == prog->limit_edicts)
 287                 PRVM_ERROR ("%s: PRVM_ED_Alloc: no free edicts",PRVM_NAME);
 288
 289         prog->num_edicts++;
 290         if (prog->num_edicts >= prog->max_edicts)
 291                 PRVM_MEM_IncreaseEdicts();
 292
 293         e = PRVM_EDICT_NUM(i);
 294         PRVM_ED_ClearEdict (e);
 295
 296         e->priv.required->allocation_origin = PRVM_AllocationOrigin();
 297
 298         return e;
 299 }
 300
 301 /*
 302 =================
 303 PRVM_ED_Free
 304
 305 Marks the edict as free
 306 FIXME: walk all entities and NULL out references to this entity
 307 =================
 308 */
 309 void PRVM_ED_Free (prvm_edict_t *ed)
 310 {
 311         // dont delete the null entity (world) or reserved edicts
 312         if(PRVM_NUM_FOR_EDICT(ed) <= prog->reserved_edicts )
 313                 return;
 314
 315         PRVM_GCALL(free_edict)(ed);
 316
 317         ed->priv.required->free = true;
 318         ed->priv.required->freetime = realtime;
 319         if(ed->priv.required->allocation_origin)
 320         {
 321                 PRVM_Free((char *)ed->priv.required->allocation_origin);
 322                 ed->priv.required->allocation_origin = NULL;
 323         }
 324 }
 325
 326 //===========================================================================
 327
 328 /*
 329 ============
 330 PRVM_ED_GlobalAtOfs
 331 ============
 332 */
 333 ddef_t *PRVM_ED_GlobalAtOfs (int ofs)
 334 {
 335         ddef_t          *def;
 336         int                     i;
 337
 338         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 339         {
 340                 def = &prog->globaldefs[i];
 341                 if (def->ofs == ofs)
 342                         return def;
 343         }
 344         return NULL;
 345 }
 346
 347 /*
 348 ============
 349 PRVM_ED_FieldAtOfs
 350 ============
 351 */
 352 ddef_t *PRVM_ED_FieldAtOfs (int ofs)
 353 {
 354         ddef_t          *def;
 355         int                     i;
 356
 357         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 358         {
 359                 def = &prog->fielddefs[i];
 360                 if (def->ofs == ofs)
 361                         return def;
 362         }
 363         return NULL;
 364 }
 365
 366 /*
 367 ============
 368 PRVM_ED_FindField
 369 ============
 370 */
 371 ddef_t *PRVM_ED_FindField (const char *name)
 372 {
 373         ddef_t *def;
 374         int i;
 375
 376         for (i=0 ; i<prog->progs->numfielddefs ; i++)
 377         {
 378                 def = &prog->fielddefs[i];
 379                 if (!strcmp(PRVM_GetString(def->s_name), name))
 380                         return def;
 381         }
 382         return NULL;
 383 }
 384
 385 /*
 386 ============
 387 PRVM_ED_FindGlobal
 388 ============
 389 */
 390 ddef_t *PRVM_ED_FindGlobal (const char *name)
 391 {
 392         ddef_t *def;
 393         int i;
 394
 395         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 396         {
 397                 def = &prog->globaldefs[i];
 398                 if (!strcmp(PRVM_GetString(def->s_name), name))
 399                         return def;
 400         }
 401         return NULL;
 402 }
 403
 404
 405 /*
 406 ============
 407 PRVM_ED_FindFunction
 408 ============
 409 */
 410 mfunction_t *PRVM_ED_FindFunction (const char *name)
 411 {
 412         mfunction_t             *func;
 413         int                             i;
 414
 415         for (i=0 ; i<prog->progs->numfunctions ; i++)
 416         {
 417                 func = &prog->functions[i];
 418                 if (!strcmp(PRVM_GetString(func->s_name), name))
 419                         return func;
 420         }
 421         return NULL;
 422 }
 423
 424
 425 /*
 426 ============
 427 PRVM_ValueString
 428
 429 Returns a string describing *data in a type specific manner
 430 =============
 431 */
 432 char *PRVM_ValueString (etype_t type, prvm_eval_t *val)
 433 {
 434         static char line[MAX_INPUTLINE];
 435         ddef_t *def;
 436         mfunction_t *f;
 437         int n;
 438
 439         type = (etype_t)((int) type & ~DEF_SAVEGLOBAL);
 440
 441         switch (type)
 442         {
 443         case ev_string:
 444                 strlcpy (line, PRVM_GetString (val->string), sizeof (line));
 445                 break;
 446         case ev_entity:
 447                 n = val->edict;
 448                 if (n < 0 || n >= prog->max_edicts)
 449                         dpsnprintf (line, sizeof(line), "entity %i (invalid!)", n);
 450                 else
 451                         dpsnprintf (line, sizeof(line), "entity %i", n);
 452                 break;
 453         case ev_function:
 454                 f = prog->functions + val->function;
 455                 dpsnprintf (line, sizeof(line), "%s()", PRVM_GetString(f->s_name));
 456                 break;
 457         case ev_field:
 458                 def = PRVM_ED_FieldAtOfs ( val->_int );
 459                 dpsnprintf (line, sizeof(line), ".%s", PRVM_GetString(def->s_name));
 460                 break;
 461         case ev_void:
 462                 dpsnprintf (line, sizeof(line), "void");
 463                 break;
 464         case ev_float:
 465                 // LordHavoc: changed from %5.1f to %10.4f
 466                 dpsnprintf (line, sizeof(line), "%10.4f", val->_float);
 467                 break;
 468         case ev_vector:
 469                 // LordHavoc: changed from %5.1f to %10.4f
 470                 dpsnprintf (line, sizeof(line), "'%10.4f %10.4f %10.4f'", val->vector[0], val->vector[1], val->vector[2]);
 471                 break;
 472         case ev_pointer:
 473                 dpsnprintf (line, sizeof(line), "pointer");
 474                 break;
 475         default:
 476                 dpsnprintf (line, sizeof(line), "bad type %i", (int) type);
 477                 break;
 478         }
 479
 480         return line;
 481 }
 482
 483 /*
 484 ============
 485 PRVM_UglyValueString
 486
 487 Returns a string describing *data in a type specific manner
 488 Easier to parse than PR_ValueString
 489 =============
 490 */
 491 char *PRVM_UglyValueString (etype_t type, prvm_eval_t *val)
 492 {
 493         static char line[MAX_INPUTLINE];
 494         int i;
 495         const char *s;
 496         ddef_t *def;
 497         mfunction_t *f;
 498
 499         type = (etype_t)((int)type & ~DEF_SAVEGLOBAL);
 500
 501         switch (type)
 502         {
 503         case ev_string:
 504                 // Parse the string a bit to turn special characters
 505                 // (like newline, specifically) into escape codes,
 506                 // this fixes saving games from various mods
 507                 s = PRVM_GetString (val->string);
 508                 for (i = 0;i < (int)sizeof(line) - 2 && *s;)
 509                 {
 510                         if (*s == '\n')
 511                         {
 512                                 line[i++] = '\\';
 513                                 line[i++] = 'n';
 514                         }
 515                         else if (*s == '\r')
 516                         {
 517                                 line[i++] = '\\';
 518                                 line[i++] = 'r';
 519                         }
 520                         else if (*s == '\\')
 521                         {
 522                                 line[i++] = '\\';
 523                                 line[i++] = '\\';
 524                         }
 525                         else if (*s == '"')
 526                         {
 527                                 line[i++] = '\\';
 528                                 line[i++] = '"';
 529                         }
 530                         else
 531                                 line[i++] = *s;
 532                         s++;
 533                 }
 534                 line[i] = '\0';
 535                 break;
 536         case ev_entity:
 537                 dpsnprintf (line, sizeof (line), "%i", PRVM_NUM_FOR_EDICT(PRVM_PROG_TO_EDICT(val->edict)));
 538                 break;
 539         case ev_function:
 540                 f = prog->functions + val->function;
 541                 strlcpy (line, PRVM_GetString (f->s_name), sizeof (line));
 542                 break;
 543         case ev_field:
 544                 def = PRVM_ED_FieldAtOfs ( val->_int );
 545                 dpsnprintf (line, sizeof (line), ".%s", PRVM_GetString(def->s_name));
 546                 break;
 547         case ev_void:
 548                 dpsnprintf (line, sizeof (line), "void");
 549                 break;
 550         case ev_float:
 551                 dpsnprintf (line, sizeof (line), "%f", val->_float);
 552                 break;
 553         case ev_vector:
 554                 dpsnprintf (line, sizeof (line), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]);
 555                 break;
 556         default:
 557                 dpsnprintf (line, sizeof (line), "bad type %i", type);
 558                 break;
 559         }
 560
 561         return line;
 562 }
 563
 564 /*
 565 ============
 566 PRVM_GlobalString
 567
 568 Returns a string with a description and the contents of a global,
 569 padded to 20 field width
 570 ============
 571 */
 572 char *PRVM_GlobalString (int ofs)
 573 {
 574         char    *s;
 575         //size_t        i;
 576         ddef_t  *def;
 577         void    *val;
 578         static char     line[128];
 579
 580         val = (void *)&prog->globals.generic[ofs];
 581         def = PRVM_ED_GlobalAtOfs(ofs);
 582         if (!def)
 583                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 584         else
 585         {
 586                 s = PRVM_ValueString ((etype_t)def->type, (prvm_eval_t *)val);
 587                 dpsnprintf (line, sizeof(line), "%s (=%s)", PRVM_GetString(def->s_name), s);
 588         }
 589
 590         //i = strlen(line);
 591         //for ( ; i<20 ; i++)
 592         //      strcat (line," ");
 593         //strcat (line," ");
 594
 595         return line;
 596 }
 597
 598 char *PRVM_GlobalStringNoContents (int ofs)
 599 {
 600         //size_t        i;
 601         ddef_t  *def;
 602         static char     line[128];
 603
 604         def = PRVM_ED_GlobalAtOfs(ofs);
 605         if (!def)
 606                 dpsnprintf (line, sizeof(line), "GLOBAL%i", ofs);
 607         else
 608                 dpsnprintf (line, sizeof(line), "%s", PRVM_GetString(def->s_name));
 609
 610         //i = strlen(line);
 611         //for ( ; i<20 ; i++)
 612         //      strcat (line," ");
 613         //strcat (line," ");
 614
 615         return line;
 616 }
 617
 618
 619 /*
 620 =============
 621 PRVM_ED_Print
 622
 623 For debugging
 624 =============
 625 */
 626 // LordHavoc: optimized this to print out much more quickly (tempstring)
 627 // LordHavoc: changed to print out every 4096 characters (incase there are a lot of fields to print)
 628 void PRVM_ED_Print(prvm_edict_t *ed, const char *wildcard_fieldname)
 629 {
 630         size_t  l;
 631         ddef_t  *d;
 632         int             *v;
 633         int             i, j;
 634         const char      *name;
 635         int             type;
 636         char    tempstring[MAX_INPUTLINE], tempstring2[260]; // temporary string buffers
 637
 638         if (ed->priv.required->free)
 639         {
 640                 Con_Printf("%s: FREE\n",PRVM_NAME);
 641                 return;
 642         }
 643
 644         tempstring[0] = 0;
 645         dpsnprintf(tempstring, sizeof(tempstring), "\n%s EDICT %i:\n", PRVM_NAME, PRVM_NUM_FOR_EDICT(ed));
 646         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 647         {
 648                 d = &prog->fielddefs[i];
 649                 name = PRVM_GetString(d->s_name);
 650                 if (name[strlen(name)-2] == '_')
 651                         continue;       // skip _x, _y, _z vars
 652
 653                 // Check Field Name Wildcard
 654                 if(wildcard_fieldname)
 655                         if( !matchpattern(name, wildcard_fieldname, 1) )
 656                                 // Didn't match; skip
 657                                 continue;
 658
 659                 v = (int *)(ed->fields.vp + d->ofs);
 660
 661         // if the value is still all 0, skip the field
 662                 type = d->type & ~DEF_SAVEGLOBAL;
 663
 664                 for (j=0 ; j<prvm_type_size[type] ; j++)
 665                         if (v[j])
 666                                 break;
 667                 if (j == prvm_type_size[type])
 668                         continue;
 669
 670                 if (strlen(name) > sizeof(tempstring2)-4)
 671                 {
 672                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 673                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 674                         tempstring2[sizeof(tempstring2)-1] = 0;
 675                         name = tempstring2;
 676                 }
 677                 strlcat(tempstring, name, sizeof(tempstring));
 678                 for (l = strlen(name);l < 14;l++)
 679                         strlcat(tempstring, " ", sizeof(tempstring));
 680                 strlcat(tempstring, " ", sizeof(tempstring));
 681
 682                 name = PRVM_ValueString((etype_t)d->type, (prvm_eval_t *)v);
 683                 if (strlen(name) > sizeof(tempstring2)-4)
 684                 {
 685                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
 686                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
 687                         tempstring2[sizeof(tempstring2)-1] = 0;
 688                         name = tempstring2;
 689                 }
 690                 strlcat(tempstring, name, sizeof(tempstring));
 691                 strlcat(tempstring, "\n", sizeof(tempstring));
 692                 if (strlen(tempstring) >= sizeof(tempstring)/2)
 693                 {
 694                         Con_Print(tempstring);
 695                         tempstring[0] = 0;
 696                 }
 697         }
 698         if (tempstring[0])
 699                 Con_Print(tempstring);
 700 }
 701
 702 /*
 703 =============
 704 PRVM_ED_Write
 705
 706 For savegames
 707 =============
 708 */
 709 extern cvar_t developer_entityparsing;
 710 void PRVM_ED_Write (qfile_t *f, prvm_edict_t *ed)
 711 {
 712         ddef_t  *d;
 713         int             *v;
 714         int             i, j;
 715         const char      *name;
 716         int             type;
 717
 718         FS_Print(f, "{\n");
 719
 720         if (ed->priv.required->free)
 721         {
 722                 FS_Print(f, "}\n");
 723                 return;
 724         }
 725
 726         for (i=1 ; i<prog->progs->numfielddefs ; i++)
 727         {
 728                 d = &prog->fielddefs[i];
 729                 name = PRVM_GetString(d->s_name);
 730
 731                 if(developer_entityparsing.integer)
 732                         Con_Printf("PRVM_ED_Write: at entity %d field %s\n", PRVM_NUM_FOR_EDICT(ed), name);
 733
 734                 if (name[strlen(name)-2] == '_')
 735                         continue;       // skip _x, _y, _z vars
 736
 737                 v = (int *)(ed->fields.vp + d->ofs);
 738
 739         // if the value is still all 0, skip the field
 740                 type = d->type & ~DEF_SAVEGLOBAL;
 741                 for (j=0 ; j<prvm_type_size[type] ; j++)
 742                         if (v[j])
 743                                 break;
 744                 if (j == prvm_type_size[type])
 745                         continue;
 746
 747                 FS_Printf(f,"\"%s\" ",name);
 748                 prog->statestring = va("PRVM_ED_Write, ent=%d, name=%s", i, name);
 749                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)d->type, (prvm_eval_t *)v));
 750                 prog->statestring = NULL;
 751         }
 752
 753         FS_Print(f, "}\n");
 754 }
 755
 756 void PRVM_ED_PrintNum (int ent, const char *wildcard_fieldname)
 757 {
 758         PRVM_ED_Print(PRVM_EDICT_NUM(ent), wildcard_fieldname);
 759 }
 760
 761 /*
 762 =============
 763 PRVM_ED_PrintEdicts_f
 764
 765 For debugging, prints all the entities in the current server
 766 =============
 767 */
 768 void PRVM_ED_PrintEdicts_f (void)
 769 {
 770         int             i;
 771         const char *wildcard_fieldname;
 772
 773         if(Cmd_Argc() < 2 || Cmd_Argc() > 3)
 774         {
 775                 Con_Print("prvm_edicts <program name> <optional field name wildcard>\n");
 776                 return;
 777         }
 778
 779         PRVM_Begin;
 780         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 781                 return;
 782
 783         if( Cmd_Argc() == 3)
 784                 wildcard_fieldname = Cmd_Argv(2);
 785         else
 786                 wildcard_fieldname = NULL;
 787
 788         Con_Printf("%s: %i entities\n", PRVM_NAME, prog->num_edicts);
 789         for (i=0 ; i<prog->num_edicts ; i++)
 790                 PRVM_ED_PrintNum (i, wildcard_fieldname);
 791
 792         PRVM_End;
 793 }
 794
 795 /*
 796 =============
 797 PRVM_ED_PrintEdict_f
 798
 799 For debugging, prints a single edict
 800 =============
 801 */
 802 void PRVM_ED_PrintEdict_f (void)
 803 {
 804         int             i;
 805         const char      *wildcard_fieldname;
 806
 807         if(Cmd_Argc() < 3 || Cmd_Argc() > 4)
 808         {
 809                 Con_Print("prvm_edict <program name> <edict number> <optional field name wildcard>\n");
 810                 return;
 811         }
 812
 813         PRVM_Begin;
 814         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 815                 return;
 816
 817         i = atoi (Cmd_Argv(2));
 818         if (i >= prog->num_edicts)
 819         {
 820                 Con_Print("Bad edict number\n");
 821                 PRVM_End;
 822                 return;
 823         }
 824         if( Cmd_Argc() == 4)
 825                 // Optional Wildcard Provided
 826                 wildcard_fieldname = Cmd_Argv(3);
 827         else
 828                 // Use All
 829                 wildcard_fieldname = NULL;
 830         PRVM_ED_PrintNum (i, wildcard_fieldname);
 831
 832         PRVM_End;
 833 }
 834
 835 /*
 836 =============
 837 PRVM_ED_Count
 838
 839 For debugging
 840 =============
 841 */
 842 // 2 possibilities : 1. just displaying the active edict count
 843 //                                       2. making a function pointer [x]
 844 void PRVM_ED_Count_f (void)
 845 {
 846         int             i;
 847         prvm_edict_t    *ent;
 848         int             active;
 849
 850         if(Cmd_Argc() != 2)
 851         {
 852                 Con_Print("prvm_count <program name>\n");
 853                 return;
 854         }
 855
 856         PRVM_Begin;
 857         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
 858                 return;
 859
 860         if(prog->count_edicts)
 861                 prog->count_edicts();
 862         else
 863         {
 864                 active = 0;
 865                 for (i=0 ; i<prog->num_edicts ; i++)
 866                 {
 867                         ent = PRVM_EDICT_NUM(i);
 868                         if (ent->priv.required->free)
 869                                 continue;
 870                         active++;
 871                 }
 872
 873                 Con_Printf("num_edicts:%3i\n", prog->num_edicts);
 874                 Con_Printf("active    :%3i\n", active);
 875         }
 876
 877         PRVM_End;
 878 }
 879
 880 /*
 881 ==============================================================================
 882
 883                                         ARCHIVING GLOBALS
 884
 885 FIXME: need to tag constants, doesn't really work
 886 ==============================================================================
 887 */
 888
 889 /*
 890 =============
 891 PRVM_ED_WriteGlobals
 892 =============
 893 */
 894 void PRVM_ED_WriteGlobals (qfile_t *f)
 895 {
 896         ddef_t          *def;
 897         int                     i;
 898         const char              *name;
 899         int                     type;
 900
 901         FS_Print(f,"{\n");
 902         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
 903         {
 904                 def = &prog->globaldefs[i];
 905                 type = def->type;
 906                 if ( !(def->type & DEF_SAVEGLOBAL) )
 907                         continue;
 908                 type &= ~DEF_SAVEGLOBAL;
 909
 910                 if (type != ev_string && type != ev_float && type != ev_entity)
 911                         continue;
 912
 913                 name = PRVM_GetString(def->s_name);
 914
 915                 if(developer_entityparsing.integer)
 916                         Con_Printf("PRVM_ED_WriteGlobals: at global %s\n", name);
 917
 918                 prog->statestring = va("PRVM_ED_WriteGlobals, name=%s", name);
 919                 FS_Printf(f,"\"%s\" ", name);
 920                 FS_Printf(f,"\"%s\"\n", PRVM_UglyValueString((etype_t)type, (prvm_eval_t *)&prog->globals.generic[def->ofs]));
 921                 prog->statestring = NULL;
 922         }
 923         FS_Print(f,"}\n");
 924 }
 925
 926 /*
 927 =============
 928 PRVM_ED_ParseGlobals
 929 =============
 930 */
 931 void PRVM_ED_ParseGlobals (const char *data)
 932 {
 933         char keyname[MAX_INPUTLINE];
 934         ddef_t *key;
 935
 936         while (1)
 937         {
 938                 // parse key
 939                 if (!COM_ParseToken_Simple(&data, false, false))
 940                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 941                 if (com_token[0] == '}')
 942                         break;
 943
 944                 if (developer_entityparsing.integer)
 945                         Con_Printf("Key: \"%s\"", com_token);
 946
 947                 strlcpy (keyname, com_token, sizeof(keyname));
 948
 949                 // parse value
 950                 if (!COM_ParseToken_Simple(&data, false, true))
 951                         PRVM_ERROR ("PRVM_ED_ParseGlobals: EOF without closing brace");
 952
 953                 if (developer_entityparsing.integer)
 954                         Con_Printf(" \"%s\"\n", com_token);
 955
 956                 if (com_token[0] == '}')
 957                         PRVM_ERROR ("PRVM_ED_ParseGlobals: closing brace without data");
 958
 959                 key = PRVM_ED_FindGlobal (keyname);
 960                 if (!key)
 961                 {
 962                         Con_DPrintf("'%s' is not a global on %s\n", keyname, PRVM_NAME);
 963                         continue;
 964                 }
 965
 966                 if (!PRVM_ED_ParseEpair(NULL, key, com_token, true))
 967                         PRVM_ERROR ("PRVM_ED_ParseGlobals: parse error");
 968         }
 969 }
 970
 971 //============================================================================
 972
 973
 974 /*
 975 =============
 976 PRVM_ED_ParseEval
 977
 978 Can parse either fields or globals
 979 returns false if error
 980 =============
 981 */
 982 qboolean PRVM_ED_ParseEpair(prvm_edict_t *ent, ddef_t *key, const char *s, qboolean parsebackslash)
 983 {
 984         int i, l;
 985         char *new_p;
 986         ddef_t *def;
 987         prvm_eval_t *val;
 988         mfunction_t *func;
 989
 990         if (ent)
 991                 val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
 992         else
 993                 val = (prvm_eval_t *)(prog->globals.generic + key->ofs);
 994         switch (key->type & ~DEF_SAVEGLOBAL)
 995         {
 996         case ev_string:
 997                 l = (int)strlen(s) + 1;
 998                 val->string = PRVM_AllocString(l, &new_p);
 999                 for (i = 0;i < l;i++)
1000                 {
1001                         if (s[i] == '\\' && s[i+1] && parsebackslash)
1002                         {
1003                                 i++;
1004                                 if (s[i] == 'n')
1005                                         *new_p++ = '\n';
1006                                 else if (s[i] == 'r')
1007                                         *new_p++ = '\r';
1008                                 else
1009                                         *new_p++ = s[i];
1010                         }
1011                         else
1012                                 *new_p++ = s[i];
1013                 }
1014                 break;
1015
1016         case ev_float:
1017                 while (*s && ISWHITESPACE(*s))
1018                         s++;
1019                 val->_float = atof(s);
1020                 break;
1021
1022         case ev_vector:
1023                 for (i = 0;i < 3;i++)
1024                 {
1025                         while (*s && ISWHITESPACE(*s))
1026                                 s++;
1027                         if (!*s)
1028                                 break;
1029                         val->vector[i] = atof(s);
1030                         while (!ISWHITESPACE(*s))
1031                                 s++;
1032                         if (!*s)
1033                                 break;
1034                 }
1035                 break;
1036
1037         case ev_entity:
1038                 while (*s && ISWHITESPACE(*s))
1039                         s++;
1040                 i = atoi(s);
1041                 if (i >= prog->limit_edicts)
1042                         Con_Printf("PRVM_ED_ParseEpair: ev_entity reference too large (edict %u >= MAX_EDICTS %u) on %s\n", (unsigned int)i, prog->limit_edicts, PRVM_NAME);
1043                 while (i >= prog->max_edicts)
1044                         PRVM_MEM_IncreaseEdicts();
1045                 // if IncreaseEdicts was called the base pointer needs to be updated
1046                 if (ent)
1047                         val = (prvm_eval_t *)(ent->fields.vp + key->ofs);
1048                 val->edict = PRVM_EDICT_TO_PROG(PRVM_EDICT_NUM((int)i));
1049                 break;
1050
1051         case ev_field:
1052                 if (*s != '.')
1053                 {
1054                         Con_DPrintf("PRVM_ED_ParseEpair: Bogus field name %s in %s\n", s, PRVM_NAME);
1055                         return false;
1056                 }
1057                 def = PRVM_ED_FindField(s + 1);
1058                 if (!def)
1059                 {
1060                         Con_DPrintf("PRVM_ED_ParseEpair: Can't find field %s in %s\n", s, PRVM_NAME);
1061                         return false;
1062                 }
1063                 val->_int = def->ofs;
1064                 break;
1065
1066         case ev_function:
1067                 func = PRVM_ED_FindFunction(s);
1068                 if (!func)
1069                 {
1070                         Con_Printf("PRVM_ED_ParseEpair: Can't find function %s in %s\n", s, PRVM_NAME);
1071                         return false;
1072                 }
1073                 val->function = func - prog->functions;
1074                 break;
1075
1076         default:
1077                 Con_Printf("PRVM_ED_ParseEpair: Unknown key->type %i for key \"%s\" on %s\n", key->type, PRVM_GetString(key->s_name), PRVM_NAME);
1078                 return false;
1079         }
1080         return true;
1081 }
1082
1083 /*
1084 =============
1085 PRVM_GameCommand_f
1086
1087 Console command to send a string to QC function GameCommand of the
1088 indicated progs
1089
1090 Usage:
1091   sv_cmd adminmsg 3 "do not teamkill"
1092   cl_cmd someclientcommand
1093   menu_cmd somemenucommand
1094
1095 All progs can support this extension; sg calls it in server QC, cg in client
1096 QC, mg in menu QC.
1097 =============
1098 */
1099 void PRVM_GameCommand(const char *whichprogs, const char *whichcmd)
1100 {
1101         if(Cmd_Argc() < 1)
1102         {
1103                 Con_Printf("%s text...\n", whichcmd);
1104                 return;
1105         }
1106
1107         PRVM_Begin;
1108         if(!PRVM_SetProgFromString(whichprogs))
1109         // note: this is not PRVM_SetProg because that one aborts "hard" using PRVM_Error
1110         // also, it makes printing error messages easier!
1111         {
1112                 Con_Printf("%s program not loaded.\n", whichprogs);
1113                 return;
1114         }
1115
1116         if(!prog->funcoffsets.GameCommand)
1117         {
1118                 Con_Printf("%s program do not support GameCommand!\n", whichprogs);
1119         }
1120         else
1121         {
1122                 int restorevm_tempstringsbuf_cursize;
1123                 const char *s;
1124
1125                 s = Cmd_Args();
1126
1127                 restorevm_tempstringsbuf_cursize = vm_tempstringsbuf.cursize;
1128                 PRVM_G_INT(OFS_PARM0) = PRVM_SetTempString(s ? s : "");
1129                 PRVM_ExecuteProgram (prog->funcoffsets.GameCommand, "QC function GameCommand is missing");
1130                 vm_tempstringsbuf.cursize = restorevm_tempstringsbuf_cursize;
1131         }
1132
1133         PRVM_End;
1134 }
1135 void PRVM_GameCommand_Server_f(void)
1136 {
1137         PRVM_GameCommand("server", "sv_cmd");
1138 }
1139 void PRVM_GameCommand_Client_f(void)
1140 {
1141         PRVM_GameCommand("client", "cl_cmd");
1142 }
1143 void PRVM_GameCommand_Menu_f(void)
1144 {
1145         PRVM_GameCommand("menu", "menu_cmd");
1146 }
1147
1148 /*
1149 =============
1150 PRVM_ED_EdictGet_f
1151
1152 Console command to load a field of a specified edict
1153 =============
1154 */
1155 void PRVM_ED_EdictGet_f(void)
1156 {
1157         prvm_edict_t *ed;
1158         ddef_t *key;
1159         const char *s;
1160         prvm_eval_t *v;
1161
1162         if(Cmd_Argc() != 4 && Cmd_Argc() != 5)
1163         {
1164                 Con_Print("prvm_edictget <program name> <edict number> <field> [<cvar>]\n");
1165                 return;
1166         }
1167
1168         PRVM_Begin;
1169         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1170         {
1171                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1172                 return;
1173         }
1174
1175         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1176
1177         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1178         {
1179                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1180                 goto fail;
1181         }
1182
1183         v = (prvm_eval_t *)(ed->fields.vp + key->ofs);
1184         s = PRVM_UglyValueString(key->type, v);
1185         if(Cmd_Argc() == 5)
1186         {
1187                 cvar_t *cvar = Cvar_FindVar(Cmd_Argv(4));
1188                 if (cvar && cvar->flags & CVAR_READONLY)
1189                 {
1190                         Con_Printf("prvm_edictget: %s is read-only\n", cvar->name);
1191                         goto fail;
1192                 }
1193                 Cvar_Get(Cmd_Argv(4), s, 0, NULL);
1194         }
1195         else
1196                 Con_Printf("%s\n", s);
1197
1198 fail:
1199         PRVM_End;
1200 }
1201
1202 void PRVM_ED_GlobalGet_f(void)
1203 {
1204         ddef_t *key;
1205         const char *s;
1206         prvm_eval_t *v;
1207
1208         if(Cmd_Argc() != 3 && Cmd_Argc() != 4)
1209         {
1210                 Con_Print("prvm_globalget <program name> <global> [<cvar>]\n");
1211                 return;
1212         }
1213
1214         PRVM_Begin;
1215         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1216         {
1217                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1218                 return;
1219         }
1220
1221         key = PRVM_ED_FindGlobal(Cmd_Argv(2));
1222         if(!key)
1223         {
1224                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
1225                 goto fail;
1226         }
1227
1228         v = (prvm_eval_t *) &prog->globals.generic[key->ofs];
1229         s = PRVM_UglyValueString(key->type, v);
1230         if(Cmd_Argc() == 4)
1231         {
1232                 cvar_t *cvar = Cvar_FindVar(Cmd_Argv(3));
1233                 if (cvar && cvar->flags & CVAR_READONLY)
1234                 {
1235                         Con_Printf("prvm_globalget: %s is read-only\n", cvar->name);
1236                         goto fail;
1237                 }
1238                 Cvar_Get(Cmd_Argv(3), s, 0, NULL);
1239         }
1240         else
1241                 Con_Printf("%s\n", s);
1242
1243 fail:
1244         PRVM_End;
1245 }
1246
1247 /*
1248 =============
1249 PRVM_ED_EdictSet_f
1250
1251 Console command to set a field of a specified edict
1252 =============
1253 */
1254 void PRVM_ED_EdictSet_f(void)
1255 {
1256         prvm_edict_t *ed;
1257         ddef_t *key;
1258
1259         if(Cmd_Argc() != 5)
1260         {
1261                 Con_Print("prvm_edictset <program name> <edict number> <field> <value>\n");
1262                 return;
1263         }
1264
1265         PRVM_Begin;
1266         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
1267         {
1268                 Con_Printf("Wrong program name %s !\n", Cmd_Argv(1));
1269                 return;
1270         }
1271
1272         ed = PRVM_EDICT_NUM(atoi(Cmd_Argv(2)));
1273
1274         if((key = PRVM_ED_FindField(Cmd_Argv(3))) == 0)
1275                 Con_Printf("Key %s not found !\n", Cmd_Argv(3));
1276         else
1277                 PRVM_ED_ParseEpair(ed, key, Cmd_Argv(4), true);
1278
1279         PRVM_End;
1280 }
1281
1282 /*
1283 ====================
1284 PRVM_ED_ParseEdict
1285
1286 Parses an edict out of the given string, returning the new position
1287 ed should be a properly initialized empty edict.
1288 Used for initial level load and for savegames.
1289 ====================
1290 */
1291 const char *PRVM_ED_ParseEdict (const char *data, prvm_edict_t *ent)
1292 {
1293         ddef_t *key;
1294         qboolean anglehack;
1295         qboolean init;
1296         char keyname[256];
1297         size_t n;
1298
1299         init = false;
1300
1301 // go through all the dictionary pairs
1302         while (1)
1303         {
1304         // parse key
1305                 if (!COM_ParseToken_Simple(&data, false, false))
1306                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1307                 if (developer_entityparsing.integer)
1308                         Con_Printf("Key: \"%s\"", com_token);
1309                 if (com_token[0] == '}')
1310                         break;
1311
1312                 // anglehack is to allow QuakeEd to write single scalar angles
1313                 // and allow them to be turned into vectors. (FIXME...)
1314                 if (!strcmp(com_token, "angle"))
1315                 {
1316                         strlcpy (com_token, "angles", sizeof(com_token));
1317                         anglehack = true;
1318                 }
1319                 else
1320                         anglehack = false;
1321
1322                 // FIXME: change light to _light to get rid of this hack
1323                 if (!strcmp(com_token, "light"))
1324                         strlcpy (com_token, "light_lev", sizeof(com_token));    // hack for single light def
1325
1326                 strlcpy (keyname, com_token, sizeof(keyname));
1327
1328                 // another hack to fix keynames with trailing spaces
1329                 n = strlen(keyname);
1330                 while (n && keyname[n-1] == ' ')
1331                 {
1332                         keyname[n-1] = 0;
1333                         n--;
1334                 }
1335
1336         // parse value
1337                 if (!COM_ParseToken_Simple(&data, false, false))
1338                         PRVM_ERROR ("PRVM_ED_ParseEdict: EOF without closing brace");
1339                 if (developer_entityparsing.integer)
1340                         Con_Printf(" \"%s\"\n", com_token);
1341
1342                 if (com_token[0] == '}')
1343                         PRVM_ERROR ("PRVM_ED_ParseEdict: closing brace without data");
1344
1345                 init = true;
1346
1347                 // ignore attempts to set key "" (this problem occurs in nehahra neh1m8.bsp)
1348                 if (!keyname[0])
1349                         continue;
1350
1351 // keynames with a leading underscore are used for utility comments,
1352 // and are immediately discarded by quake
1353                 if (keyname[0] == '_')
1354                         continue;
1355
1356                 key = PRVM_ED_FindField (keyname);
1357                 if (!key)
1358                 {
1359                         Con_DPrintf("%s: '%s' is not a field\n", PRVM_NAME, keyname);
1360                         continue;
1361                 }
1362
1363                 if (anglehack)
1364                 {
1365                         char    temp[32];
1366                         strlcpy (temp, com_token, sizeof(temp));
1367                         dpsnprintf (com_token, sizeof(com_token), "0 %s 0", temp);
1368                 }
1369
1370                 if (!PRVM_ED_ParseEpair(ent, key, com_token, strcmp(keyname, "wad") != 0))
1371                         PRVM_ERROR ("PRVM_ED_ParseEdict: parse error");
1372         }
1373
1374         if (!init)
1375                 ent->priv.required->free = true;
1376
1377         return data;
1378 }
1379
1380
1381 /*
1382 ================
1383 PRVM_ED_LoadFromFile
1384
1385 The entities are directly placed in the array, rather than allocated with
1386 PRVM_ED_Alloc, because otherwise an error loading the map would have entity
1387 number references out of order.
1388
1389 Creates a server's entity / program execution context by
1390 parsing textual entity definitions out of an ent file.
1391
1392 Used for both fresh maps and savegame loads.  A fresh map would also need
1393 to call PRVM_ED_CallSpawnFunctions () to let the objects initialize themselves.
1394 ================
1395 */
1396 void PRVM_ED_LoadFromFile (const char *data)
1397 {
1398         prvm_edict_t *ent;
1399         int parsed, inhibited, spawned, died;
1400         const char *funcname;
1401         mfunction_t *func;
1402
1403         parsed = 0;
1404         inhibited = 0;
1405         spawned = 0;
1406         died = 0;
1407
1408
1409 // parse ents
1410         while (1)
1411         {
1412 // parse the opening brace
1413                 if (!COM_ParseToken_Simple(&data, false, false))
1414                         break;
1415                 if (com_token[0] != '{')
1416                         PRVM_ERROR ("PRVM_ED_LoadFromFile: %s: found %s when expecting {", PRVM_NAME, com_token);
1417
1418                 // CHANGED: this is not conform to PR_LoadFromFile
1419                 if(prog->loadintoworld)
1420                 {
1421                         prog->loadintoworld = false;
1422                         ent = PRVM_EDICT_NUM(0);
1423                 }
1424                 else
1425                         ent = PRVM_ED_Alloc();
1426
1427                 // clear it
1428                 if (ent != prog->edicts)        // hack
1429                         memset (ent->fields.vp, 0, prog->progs->entityfields * 4);
1430
1431                 data = PRVM_ED_ParseEdict (data, ent);
1432                 parsed++;
1433
1434                 // remove the entity ?
1435                 if(prog->load_edict && !prog->load_edict(ent))
1436                 {
1437                         PRVM_ED_Free(ent);
1438                         inhibited++;
1439                         continue;
1440                 }
1441
1442                 if (prog->funcoffsets.SV_OnEntityPreSpawnFunction)
1443                 {
1444                         // self = ent
1445                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1446                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPreSpawnFunction, "QC function SV_OnEntityPreSpawnFunction is missing");
1447                 }
1448
1449                 if(ent->priv.required->free)
1450                 {
1451                         inhibited++;
1452                         continue;
1453                 }
1454
1455 //
1456 // immediately call spawn function, but only if there is a self global and a classname
1457 //
1458                 if(!ent->priv.required->free)
1459                 if(prog->globaloffsets.self >= 0 && prog->fieldoffsets.classname >= 0)
1460                 {
1461                         string_t handle =  PRVM_EDICTFIELDVALUE(ent, prog->fieldoffsets.classname)->string;
1462                         if (!handle)
1463                         {
1464                                 Con_Print("No classname for:\n");
1465                                 PRVM_ED_Print(ent, NULL);
1466                                 PRVM_ED_Free (ent);
1467                                 continue;
1468                         }
1469
1470                         // look for the spawn function
1471                         funcname = PRVM_GetString(handle);
1472                         func = PRVM_ED_FindFunction (va("spawnfunc_%s", funcname));
1473                         if(!func)
1474                                 if(prog->globaloffsets.require_spawnfunc_prefix < 0)
1475                                         func = PRVM_ED_FindFunction (funcname);
1476
1477                         if (!func)
1478                         {
1479                                 // check for OnEntityNoSpawnFunction
1480                                 if (prog->funcoffsets.SV_OnEntityNoSpawnFunction)
1481                                 {
1482                                         // self = ent
1483                                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1484                                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityNoSpawnFunction, "QC function SV_OnEntityNoSpawnFunction is missing");
1485                                 }
1486                                 else
1487                                 {
1488                                         if (developer.integer) // don't confuse non-developers with errors
1489                                         {
1490                                                 Con_Print("No spawn function for:\n");
1491                                                 PRVM_ED_Print(ent, NULL);
1492                                         }
1493                                         PRVM_ED_Free (ent);
1494                                         continue; // not included in "inhibited" count
1495                                 }
1496                         }
1497                         else
1498                         {
1499                                 // self = ent
1500                                 PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1501                                 PRVM_ExecuteProgram (func - prog->functions, "");
1502                         }
1503                 }
1504
1505                 if(!ent->priv.required->free)
1506                 if (prog->funcoffsets.SV_OnEntityPostSpawnFunction)
1507                 {
1508                         // self = ent
1509                         PRVM_GLOBALFIELDVALUE(prog->globaloffsets.self)->edict = PRVM_EDICT_TO_PROG(ent);
1510                         PRVM_ExecuteProgram (prog->funcoffsets.SV_OnEntityPostSpawnFunction, "QC function SV_OnEntityPostSpawnFunction is missing");
1511                 }
1512
1513                 spawned++;
1514                 if (ent->priv.required->free)
1515                         died++;
1516         }
1517
1518         Con_DPrintf("%s: %i new entities parsed, %i new inhibited, %i (%i new) spawned (whereas %i removed self, %i stayed)\n", PRVM_NAME, parsed, inhibited, prog->num_edicts, spawned, died, spawned - died);
1519 }
1520
1521 void PRVM_FindOffsets(void)
1522 {
1523         // field and global searches use -1 for NULL
1524         memset(&prog->fieldoffsets, -1, sizeof(prog->fieldoffsets));
1525         memset(&prog->globaloffsets, -1, sizeof(prog->globaloffsets));
1526         // functions use 0 for NULL
1527         memset(&prog->funcoffsets, 0, sizeof(prog->funcoffsets));
1528
1529         // server and client qc use a lot of similar fields, so this is combined
1530         prog->fieldoffsets.SendEntity                     = PRVM_ED_FindFieldOffset("SendEntity");
1531         prog->fieldoffsets.SendFlags                      = PRVM_ED_FindFieldOffset("SendFlags");
1532         prog->fieldoffsets.Version                        = PRVM_ED_FindFieldOffset("Version");
1533         prog->fieldoffsets.alpha                          = PRVM_ED_FindFieldOffset("alpha");
1534         prog->fieldoffsets.ammo_cells1                    = PRVM_ED_FindFieldOffset("ammo_cells1");
1535         prog->fieldoffsets.ammo_lava_nails                = PRVM_ED_FindFieldOffset("ammo_lava_nails");
1536         prog->fieldoffsets.ammo_multi_rockets             = PRVM_ED_FindFieldOffset("ammo_multi_rockets");
1537         prog->fieldoffsets.ammo_nails1                    = PRVM_ED_FindFieldOffset("ammo_nails1");
1538         prog->fieldoffsets.ammo_plasma                    = PRVM_ED_FindFieldOffset("ammo_plasma");
1539         prog->fieldoffsets.ammo_rockets1                  = PRVM_ED_FindFieldOffset("ammo_rockets1");
1540         prog->fieldoffsets.ammo_shells1                   = PRVM_ED_FindFieldOffset("ammo_shells1");
1541         prog->fieldoffsets.angles                         = PRVM_ED_FindFieldOffset("angles");
1542         prog->fieldoffsets.button3                        = PRVM_ED_FindFieldOffset("button3");
1543         prog->fieldoffsets.button4                        = PRVM_ED_FindFieldOffset("button4");
1544         prog->fieldoffsets.button5                        = PRVM_ED_FindFieldOffset("button5");
1545         prog->fieldoffsets.button6                        = PRVM_ED_FindFieldOffset("button6");
1546         prog->fieldoffsets.button7                        = PRVM_ED_FindFieldOffset("button7");
1547         prog->fieldoffsets.button8                        = PRVM_ED_FindFieldOffset("button8");
1548         prog->fieldoffsets.button9                        = PRVM_ED_FindFieldOffset("button9");
1549         prog->fieldoffsets.button10                       = PRVM_ED_FindFieldOffset("button10");
1550         prog->fieldoffsets.button11                       = PRVM_ED_FindFieldOffset("button11");
1551         prog->fieldoffsets.button12                       = PRVM_ED_FindFieldOffset("button12");
1552         prog->fieldoffsets.button13                       = PRVM_ED_FindFieldOffset("button13");
1553         prog->fieldoffsets.button14                       = PRVM_ED_FindFieldOffset("button14");
1554         prog->fieldoffsets.button15                       = PRVM_ED_FindFieldOffset("button15");
1555         prog->fieldoffsets.button16                       = PRVM_ED_FindFieldOffset("button16");
1556         prog->fieldoffsets.buttonchat                     = PRVM_ED_FindFieldOffset("buttonchat");
1557         prog->fieldoffsets.buttonuse                      = PRVM_ED_FindFieldOffset("buttonuse");
1558         prog->fieldoffsets.chain                          = PRVM_ED_FindFieldOffset("chain");
1559         prog->fieldoffsets.classname                      = PRVM_ED_FindFieldOffset("classname");
1560         prog->fieldoffsets.clientcamera                   = PRVM_ED_FindFieldOffset("clientcamera");
1561         prog->fieldoffsets.clientcolors                   = PRVM_ED_FindFieldOffset("clientcolors");
1562         prog->fieldoffsets.clientstatus                   = PRVM_ED_FindFieldOffset("clientstatus");
1563         prog->fieldoffsets.color                          = PRVM_ED_FindFieldOffset("color");
1564         prog->fieldoffsets.colormod                       = PRVM_ED_FindFieldOffset("colormod");
1565         prog->fieldoffsets.contentstransition             = PRVM_ED_FindFieldOffset("contentstransition");
1566         prog->fieldoffsets.cursor_active                  = PRVM_ED_FindFieldOffset("cursor_active");
1567         prog->fieldoffsets.cursor_screen                  = PRVM_ED_FindFieldOffset("cursor_screen");
1568         prog->fieldoffsets.cursor_trace_endpos            = PRVM_ED_FindFieldOffset("cursor_trace_endpos");
1569         prog->fieldoffsets.cursor_trace_ent               = PRVM_ED_FindFieldOffset("cursor_trace_ent");
1570         prog->fieldoffsets.cursor_trace_start             = PRVM_ED_FindFieldOffset("cursor_trace_start");
1571         prog->fieldoffsets.customizeentityforclient       = PRVM_ED_FindFieldOffset("customizeentityforclient");
1572         prog->fieldoffsets.dimension_hit                  = PRVM_ED_FindFieldOffset("dimension_hit");
1573         prog->fieldoffsets.dimension_solid                = PRVM_ED_FindFieldOffset("dimension_solid");
1574         prog->fieldoffsets.disableclientprediction        = PRVM_ED_FindFieldOffset("disableclientprediction");
1575         prog->fieldoffsets.dphitcontentsmask              = PRVM_ED_FindFieldOffset("dphitcontentsmask");
1576         prog->fieldoffsets.drawonlytoclient               = PRVM_ED_FindFieldOffset("drawonlytoclient");
1577         prog->fieldoffsets.exteriormodeltoclient          = PRVM_ED_FindFieldOffset("exteriormodeltoclient");
1578         prog->fieldoffsets.fatness                        = PRVM_ED_FindFieldOffset("fatness");
1579         prog->fieldoffsets.forceshader                    = PRVM_ED_FindFieldOffset("forceshader");
1580         prog->fieldoffsets.frame                          = PRVM_ED_FindFieldOffset("frame");
1581         prog->fieldoffsets.frame1time                     = PRVM_ED_FindFieldOffset("frame1time");
1582         prog->fieldoffsets.frame2                         = PRVM_ED_FindFieldOffset("frame2");
1583         prog->fieldoffsets.frame2time                     = PRVM_ED_FindFieldOffset("frame2time");
1584         prog->fieldoffsets.frame3                         = PRVM_ED_FindFieldOffset("frame3");
1585         prog->fieldoffsets.frame3time                     = PRVM_ED_FindFieldOffset("frame3time");
1586         prog->fieldoffsets.frame4                         = PRVM_ED_FindFieldOffset("frame4");
1587         prog->fieldoffsets.frame4time                     = PRVM_ED_FindFieldOffset("frame4time");
1588         prog->fieldoffsets.fullbright                     = PRVM_ED_FindFieldOffset("fullbright");
1589         prog->fieldoffsets.glow_color                     = PRVM_ED_FindFieldOffset("glow_color");
1590         prog->fieldoffsets.glow_size                      = PRVM_ED_FindFieldOffset("glow_size");
1591         prog->fieldoffsets.glow_trail                     = PRVM_ED_FindFieldOffset("glow_trail");
1592         prog->fieldoffsets.glowmod                        = PRVM_ED_FindFieldOffset("glowmod");
1593         prog->fieldoffsets.gravity                        = PRVM_ED_FindFieldOffset("gravity");
1594         prog->fieldoffsets.groundentity                   = PRVM_ED_FindFieldOffset("groundentity");
1595         prog->fieldoffsets.hull                           = PRVM_ED_FindFieldOffset("hull");
1596         prog->fieldoffsets.ideal_yaw                      = PRVM_ED_FindFieldOffset("ideal_yaw");
1597         prog->fieldoffsets.idealpitch                     = PRVM_ED_FindFieldOffset("idealpitch");
1598         prog->fieldoffsets.items2                         = PRVM_ED_FindFieldOffset("items2");
1599         prog->fieldoffsets.lerpfrac                       = PRVM_ED_FindFieldOffset("lerpfrac");
1600         prog->fieldoffsets.lerpfrac3                      = PRVM_ED_FindFieldOffset("lerpfrac3");
1601         prog->fieldoffsets.lerpfrac4                      = PRVM_ED_FindFieldOffset("lerpfrac4");
1602         prog->fieldoffsets.light_lev                      = PRVM_ED_FindFieldOffset("light_lev");
1603         prog->fieldoffsets.message                        = PRVM_ED_FindFieldOffset("message");
1604         prog->fieldoffsets.modelflags                     = PRVM_ED_FindFieldOffset("modelflags");
1605         prog->fieldoffsets.movement                       = PRVM_ED_FindFieldOffset("movement");
1606         prog->fieldoffsets.movetypesteplandevent          = PRVM_ED_FindFieldOffset("movetypesteplandevent");
1607         prog->fieldoffsets.netaddress                     = PRVM_ED_FindFieldOffset("netaddress");
1608         prog->fieldoffsets.nextthink                      = PRVM_ED_FindFieldOffset("nextthink");
1609         prog->fieldoffsets.nodrawtoclient                 = PRVM_ED_FindFieldOffset("nodrawtoclient");
1610         prog->fieldoffsets.pflags                         = PRVM_ED_FindFieldOffset("pflags");
1611         prog->fieldoffsets.ping                           = PRVM_ED_FindFieldOffset("ping");
1612         prog->fieldoffsets.packetloss                     = PRVM_ED_FindFieldOffset("ping_packetloss");
1613         prog->fieldoffsets.movementloss                   = PRVM_ED_FindFieldOffset("ping_movementloss");
1614         prog->fieldoffsets.pitch_speed                    = PRVM_ED_FindFieldOffset("pitch_speed");
1615         prog->fieldoffsets.playermodel                    = PRVM_ED_FindFieldOffset("playermodel");
1616         prog->fieldoffsets.playerskin                     = PRVM_ED_FindFieldOffset("playerskin");
1617         prog->fieldoffsets.pmodel                         = PRVM_ED_FindFieldOffset("pmodel");
1618         prog->fieldoffsets.punchvector                    = PRVM_ED_FindFieldOffset("punchvector");
1619         prog->fieldoffsets.renderamt                      = PRVM_ED_FindFieldOffset("renderamt"); // HalfLife support
1620         prog->fieldoffsets.renderflags                    = PRVM_ED_FindFieldOffset("renderflags");
1621         prog->fieldoffsets.rendermode                     = PRVM_ED_FindFieldOffset("rendermode"); // HalfLife support
1622         prog->fieldoffsets.scale                          = PRVM_ED_FindFieldOffset("scale");
1623         prog->fieldoffsets.shadertime                     = PRVM_ED_FindFieldOffset("shadertime");
1624         prog->fieldoffsets.skeletonindex                  = PRVM_ED_FindFieldOffset("skeletonindex");
1625         prog->fieldoffsets.style                          = PRVM_ED_FindFieldOffset("style");
1626         prog->fieldoffsets.tag_entity                     = PRVM_ED_FindFieldOffset("tag_entity");
1627         prog->fieldoffsets.tag_index                      = PRVM_ED_FindFieldOffset("tag_index");
1628         prog->fieldoffsets.think                          = PRVM_ED_FindFieldOffset("think");
1629         prog->fieldoffsets.viewmodelforclient             = PRVM_ED_FindFieldOffset("viewmodelforclient");
1630         prog->fieldoffsets.viewzoom                       = PRVM_ED_FindFieldOffset("viewzoom");
1631         prog->fieldoffsets.yaw_speed                      = PRVM_ED_FindFieldOffset("yaw_speed");
1632         prog->fieldoffsets.bouncefactor                   = PRVM_ED_FindFieldOffset("bouncefactor");
1633         prog->fieldoffsets.bouncestop                     = PRVM_ED_FindFieldOffset("bouncestop");
1634
1635         prog->fieldoffsets.solid                          = PRVM_ED_FindFieldOffset("solid");
1636         prog->fieldoffsets.movetype                       = PRVM_ED_FindFieldOffset("movetype");
1637         prog->fieldoffsets.modelindex                     = PRVM_ED_FindFieldOffset("modelindex");
1638         prog->fieldoffsets.mins                           = PRVM_ED_FindFieldOffset("mins");
1639         prog->fieldoffsets.maxs                           = PRVM_ED_FindFieldOffset("maxs");
1640         prog->fieldoffsets.mass                           = PRVM_ED_FindFieldOffset("mass");
1641         prog->fieldoffsets.origin                         = PRVM_ED_FindFieldOffset("origin");
1642         prog->fieldoffsets.velocity                       = PRVM_ED_FindFieldOffset("velocity");
1643         //prog->fieldoffsets.axis_forward                   = PRVM_ED_FindFieldOffset("axis_forward");
1644         //prog->fieldoffsets.axis_left                      = PRVM_ED_FindFieldOffset("axis_left");
1645         //prog->fieldoffsets.axis_up                        = PRVM_ED_FindFieldOffset("axis_up");
1646         //prog->fieldoffsets.spinvelocity                   = PRVM_ED_FindFieldOffset("spinvelocity");
1647         prog->fieldoffsets.angles                         = PRVM_ED_FindFieldOffset("angles");
1648         prog->fieldoffsets.avelocity                      = PRVM_ED_FindFieldOffset("avelocity");
1649         prog->fieldoffsets.aiment                         = PRVM_ED_FindFieldOffset("aiment");
1650         prog->fieldoffsets.enemy                          = PRVM_ED_FindFieldOffset("enemy");
1651         prog->fieldoffsets.jointtype                      = PRVM_ED_FindFieldOffset("jointtype");
1652         prog->fieldoffsets.movedir                        = PRVM_ED_FindFieldOffset("movedir");
1653
1654         prog->funcoffsets.CSQC_ConsoleCommand             = PRVM_ED_FindFunctionOffset("CSQC_ConsoleCommand");
1655         prog->funcoffsets.CSQC_Ent_Remove                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Remove");
1656         prog->funcoffsets.CSQC_Ent_Spawn                  = PRVM_ED_FindFunctionOffset("CSQC_Ent_Spawn");
1657         prog->funcoffsets.CSQC_Ent_Update                 = PRVM_ED_FindFunctionOffset("CSQC_Ent_Update");
1658         prog->funcoffsets.CSQC_Event                      = PRVM_ED_FindFunctionOffset("CSQC_Event");
1659         prog->funcoffsets.CSQC_Event_Sound                = PRVM_ED_FindFunctionOffset("CSQC_Event_Sound");
1660         prog->funcoffsets.CSQC_Init                       = PRVM_ED_FindFunctionOffset("CSQC_Init");
1661         prog->funcoffsets.CSQC_InputEvent                 = PRVM_ED_FindFunctionOffset("CSQC_InputEvent");
1662         prog->funcoffsets.CSQC_Parse_CenterPrint          = PRVM_ED_FindFunctionOffset("CSQC_Parse_CenterPrint");
1663         prog->funcoffsets.CSQC_Parse_Print                = PRVM_ED_FindFunctionOffset("CSQC_Parse_Print");
1664         prog->funcoffsets.CSQC_Parse_StuffCmd             = PRVM_ED_FindFunctionOffset("CSQC_Parse_StuffCmd");
1665         prog->funcoffsets.CSQC_Parse_TempEntity           = PRVM_ED_FindFunctionOffset("CSQC_Parse_TempEntity");
1666         prog->funcoffsets.CSQC_Shutdown                   = PRVM_ED_FindFunctionOffset("CSQC_Shutdown");
1667         prog->funcoffsets.CSQC_UpdateView                 = PRVM_ED_FindFunctionOffset("CSQC_UpdateView");
1668         prog->funcoffsets.EndFrame                        = PRVM_ED_FindFunctionOffset("EndFrame");
1669         prog->funcoffsets.GameCommand                     = PRVM_ED_FindFunctionOffset("GameCommand");
1670         prog->funcoffsets.Gecko_Query                     = PRVM_ED_FindFunctionOffset("Gecko_Query");
1671         prog->funcoffsets.RestoreGame                     = PRVM_ED_FindFunctionOffset("RestoreGame");
1672         prog->funcoffsets.SV_ChangeTeam                   = PRVM_ED_FindFunctionOffset("SV_ChangeTeam");
1673         prog->funcoffsets.SV_OnEntityNoSpawnFunction      = PRVM_ED_FindFunctionOffset("SV_OnEntityNoSpawnFunction");
1674         prog->funcoffsets.SV_OnEntityPostSpawnFunction    = PRVM_ED_FindFunctionOffset("SV_OnEntityPostSpawnFunction");
1675         prog->funcoffsets.SV_OnEntityPreSpawnFunction     = PRVM_ED_FindFunctionOffset("SV_OnEntityPreSpawnFunction");
1676         prog->funcoffsets.SV_ParseClientCommand           = PRVM_ED_FindFunctionOffset("SV_ParseClientCommand");
1677         prog->funcoffsets.SV_PausedTic                    = PRVM_ED_FindFunctionOffset("SV_PausedTic");
1678         prog->funcoffsets.SV_PlayerPhysics                = PRVM_ED_FindFunctionOffset("SV_PlayerPhysics");
1679         prog->funcoffsets.SV_Shutdown                     = PRVM_ED_FindFunctionOffset("SV_Shutdown");
1680         prog->funcoffsets.URI_Get_Callback                = PRVM_ED_FindFunctionOffset("URI_Get_Callback");
1681         prog->globaloffsets.SV_InitCmd                    = PRVM_ED_FindGlobalOffset("SV_InitCmd");
1682         prog->globaloffsets.coop                          = PRVM_ED_FindGlobalOffset("coop");
1683         prog->globaloffsets.deathmatch                    = PRVM_ED_FindGlobalOffset("deathmatch");
1684         prog->globaloffsets.dmg_origin                    = PRVM_ED_FindGlobalOffset("dmg_origin");
1685         prog->globaloffsets.dmg_save                      = PRVM_ED_FindGlobalOffset("dmg_save");
1686         prog->globaloffsets.dmg_take                      = PRVM_ED_FindGlobalOffset("dmg_take");
1687         prog->globaloffsets.drawfont                      = PRVM_ED_FindGlobalOffset("drawfont");
1688         prog->globaloffsets.gettaginfo_forward            = PRVM_ED_FindGlobalOffset("gettaginfo_forward");
1689         prog->globaloffsets.gettaginfo_name               = PRVM_ED_FindGlobalOffset("gettaginfo_name");
1690         prog->globaloffsets.gettaginfo_offset             = PRVM_ED_FindGlobalOffset("gettaginfo_offset");
1691         prog->globaloffsets.gettaginfo_parent             = PRVM_ED_FindGlobalOffset("gettaginfo_parent");
1692         prog->globaloffsets.gettaginfo_right              = PRVM_ED_FindGlobalOffset("gettaginfo_right");
1693         prog->globaloffsets.gettaginfo_up                 = PRVM_ED_FindGlobalOffset("gettaginfo_up");
1694         prog->globaloffsets.transparent_offset            = PRVM_ED_FindGlobalOffset("transparent_offset");
1695         prog->globaloffsets.intermission                  = PRVM_ED_FindGlobalOffset("intermission");
1696         prog->globaloffsets.require_spawnfunc_prefix      = PRVM_ED_FindGlobalOffset("require_spawnfunc_prefix");
1697         prog->globaloffsets.sb_showscores                 = PRVM_ED_FindGlobalOffset("sb_showscores");
1698         prog->globaloffsets.self                          = PRVM_ED_FindGlobalOffset("self");
1699         prog->globaloffsets.serverdeltatime               = PRVM_ED_FindGlobalOffset("serverdeltatime");
1700         prog->globaloffsets.serverprevtime                = PRVM_ED_FindGlobalOffset("serverprevtime");
1701         prog->globaloffsets.servertime                    = PRVM_ED_FindGlobalOffset("servertime");
1702         prog->globaloffsets.time                          = PRVM_ED_FindGlobalOffset("time");
1703         prog->globaloffsets.trace_allsolid                = PRVM_ED_FindGlobalOffset("trace_allsolid");
1704         prog->globaloffsets.trace_dphitcontents           = PRVM_ED_FindGlobalOffset("trace_dphitcontents");
1705         prog->globaloffsets.trace_dphitq3surfaceflags     = PRVM_ED_FindGlobalOffset("trace_dphitq3surfaceflags");
1706         prog->globaloffsets.trace_dphittexturename        = PRVM_ED_FindGlobalOffset("trace_dphittexturename");
1707         prog->globaloffsets.trace_dpstartcontents         = PRVM_ED_FindGlobalOffset("trace_dpstartcontents");
1708         prog->globaloffsets.trace_endpos                  = PRVM_ED_FindGlobalOffset("trace_endpos");
1709         prog->globaloffsets.trace_ent                     = PRVM_ED_FindGlobalOffset("trace_ent");
1710         prog->globaloffsets.trace_fraction                = PRVM_ED_FindGlobalOffset("trace_fraction");
1711         prog->globaloffsets.trace_inopen                  = PRVM_ED_FindGlobalOffset("trace_inopen");
1712         prog->globaloffsets.trace_inwater                 = PRVM_ED_FindGlobalOffset("trace_inwater");
1713         prog->globaloffsets.trace_networkentity           = PRVM_ED_FindGlobalOffset("trace_networkentity");
1714         prog->globaloffsets.trace_plane_dist              = PRVM_ED_FindGlobalOffset("trace_plane_dist");
1715         prog->globaloffsets.trace_plane_normal            = PRVM_ED_FindGlobalOffset("trace_plane_normal");
1716         prog->globaloffsets.trace_startsolid              = PRVM_ED_FindGlobalOffset("trace_startsolid");
1717         prog->globaloffsets.v_forward                     = PRVM_ED_FindGlobalOffset("v_forward");
1718         prog->globaloffsets.v_right                       = PRVM_ED_FindGlobalOffset("v_right");
1719         prog->globaloffsets.v_up                          = PRVM_ED_FindGlobalOffset("v_up");
1720         prog->globaloffsets.view_angles                   = PRVM_ED_FindGlobalOffset("view_angles");
1721         prog->globaloffsets.worldstatus                   = PRVM_ED_FindGlobalOffset("worldstatus");
1722
1723         // menu qc only uses some functions, nothing else
1724         prog->funcoffsets.m_draw                          = PRVM_ED_FindFunctionOffset("m_draw");
1725         prog->funcoffsets.m_init                          = PRVM_ED_FindFunctionOffset("m_init");
1726         prog->funcoffsets.m_keydown                       = PRVM_ED_FindFunctionOffset("m_keydown");
1727         prog->funcoffsets.m_keyup                         = PRVM_ED_FindFunctionOffset("m_keyup");
1728         prog->funcoffsets.m_shutdown                      = PRVM_ED_FindFunctionOffset("m_shutdown");
1729         prog->funcoffsets.m_toggle                        = PRVM_ED_FindFunctionOffset("m_toggle");
1730 }
1731
1732 // not used
1733 /*
1734 typedef struct dpfield_s
1735 {
1736         int type;
1737         char *string;
1738 }
1739 dpfield_t;
1740
1741 #define DPFIELDS (sizeof(dpfields) / sizeof(dpfield_t))
1742
1743 dpfield_t dpfields[] =
1744 {
1745 };
1746 */
1747
1748 /*
1749 ===============
1750 PRVM_ResetProg
1751 ===============
1752 */
1753
1754 void PRVM_LeakTest(void);
1755 void PRVM_ResetProg(void)
1756 {
1757         PRVM_LeakTest();
1758         PRVM_GCALL(reset_cmd)();
1759         Mem_FreePool(&prog->progs_mempool);
1760         memset(prog,0,sizeof(prvm_prog_t));
1761         prog->starttime = Sys_DoubleTime();
1762 }
1763
1764 /*
1765 ===============
1766 PRVM_LoadLNO
1767 ===============
1768 */
1769 void PRVM_LoadLNO( const char *progname ) {
1770         fs_offset_t filesize;
1771         unsigned char *lno;
1772         unsigned int *header;
1773         char filename[512];
1774
1775         FS_StripExtension( progname, filename, sizeof( filename ) );
1776         strlcat( filename, ".lno", sizeof( filename ) );
1777
1778         lno = FS_LoadFile( filename, tempmempool, false, &filesize );
1779         if( !lno ) {
1780                 return;
1781         }
1782
1783 /*
1784 <Spike>    SafeWrite (h, &lnotype, sizeof(int));
1785 <Spike>    SafeWrite (h, &version, sizeof(int));
1786 <Spike>    SafeWrite (h, &numglobaldefs, sizeof(int));
1787 <Spike>    SafeWrite (h, &numpr_globals, sizeof(int));
1788 <Spike>    SafeWrite (h, &numfielddefs, sizeof(int));
1789 <Spike>    SafeWrite (h, &numstatements, sizeof(int));
1790 <Spike>    SafeWrite (h, statement_linenums, numstatements*sizeof(int));
1791 */
1792         if( (unsigned) filesize < (6 + prog->progs->numstatements) * sizeof( int ) ) {
1793                 Mem_Free(lno);
1794                 return;
1795         }
1796
1797         header = (unsigned int *) lno;
1798         if( header[ 0 ] == *(unsigned int *) "LNOF" &&
1799                 LittleLong( header[ 1 ] ) == 1 &&
1800                 (unsigned int)LittleLong( header[ 2 ] ) == (unsigned int)prog->progs->numglobaldefs &&
1801                 (unsigned int)LittleLong( header[ 3 ] ) == (unsigned int)prog->progs->numglobals &&
1802                 (unsigned int)LittleLong( header[ 4 ] ) == (unsigned int)prog->progs->numfielddefs &&
1803                 (unsigned int)LittleLong( header[ 5 ] ) == (unsigned int)prog->progs->numstatements )
1804         {
1805                 prog->statement_linenums = (int *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof( int ) );
1806                 memcpy( prog->statement_linenums, (int *) lno + 6, prog->progs->numstatements * sizeof( int ) );
1807         }
1808         Mem_Free( lno );
1809 }
1810
1811 /*
1812 ===============
1813 PRVM_LoadProgs
1814 ===============
1815 */
1816 void PRVM_LoadProgs (const char * filename, int numrequiredfunc, char **required_func, int numrequiredfields, prvm_required_field_t *required_field, int numrequiredglobals, char **required_global)
1817 {
1818         int i;
1819         dstatement_t *st;
1820         ddef_t *infielddefs;
1821         dfunction_t *dfunctions;
1822         fs_offset_t filesize;
1823
1824         if( prog->loaded ) {
1825                 PRVM_ERROR ("PRVM_LoadProgs: there is already a %s program loaded!", PRVM_NAME );
1826         }
1827
1828         prog->progs = (dprograms_t *)FS_LoadFile (filename, prog->progs_mempool, false, &filesize);
1829         if (prog->progs == NULL || filesize < (fs_offset_t)sizeof(dprograms_t))
1830                 PRVM_ERROR ("PRVM_LoadProgs: couldn't load %s for %s", filename, PRVM_NAME);
1831         // TODO bounds check header fields (e.g. numstatements), they must never go behind end of file
1832
1833         Con_DPrintf("%s programs occupy %iK.\n", PRVM_NAME, (int)(filesize/1024));
1834
1835         prog->filecrc = CRC_Block((unsigned char *)prog->progs, filesize);
1836
1837 // byte swap the header
1838         for (i = 0;i < (int) sizeof(*prog->progs) / 4;i++)
1839                 ((int *)prog->progs)[i] = LittleLong ( ((int *)prog->progs)[i] );
1840
1841         if (prog->progs->version != PROG_VERSION)
1842                 PRVM_ERROR ("%s: %s has wrong version number (%i should be %i)", PRVM_NAME, filename, prog->progs->version, PROG_VERSION);
1843         if (prog->progs->crc != prog->headercrc && prog->progs->crc != prog->headercrc2)
1844                 PRVM_ERROR ("%s: %s system vars have been modified (CRC of progs.dat systemvars %i != engine %i), progdefs.h is out of date", PRVM_NAME, filename, prog->progs->crc, prog->headercrc);
1845
1846         //prog->functions = (dfunction_t *)((unsigned char *)progs + progs->ofs_functions);
1847         dfunctions = (dfunction_t *)((unsigned char *)prog->progs + prog->progs->ofs_functions);
1848
1849         if (prog->progs->ofs_strings + prog->progs->numstrings >= (int)filesize)
1850                 PRVM_ERROR ("%s: %s strings go past end of file", PRVM_NAME, filename);
1851         prog->strings = (char *)prog->progs + prog->progs->ofs_strings;
1852         prog->stringssize = prog->progs->numstrings;
1853
1854         prog->numknownstrings = 0;
1855         prog->maxknownstrings = 0;
1856         prog->knownstrings = NULL;
1857         prog->knownstrings_freeable = NULL;
1858
1859         Mem_ExpandableArray_NewArray(&prog->stringbuffersarray, prog->progs_mempool, sizeof(prvm_stringbuffer_t), 64);
1860
1861         prog->globaldefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_globaldefs);
1862
1863         // we need to expand the fielddefs list to include all the engine fields,
1864         // so allocate a new place for it
1865         infielddefs = (ddef_t *)((unsigned char *)prog->progs + prog->progs->ofs_fielddefs);
1866         //                                                                                              ( + DPFIELDS                       )
1867         prog->fielddefs = (ddef_t *)Mem_Alloc(prog->progs_mempool, (prog->progs->numfielddefs + numrequiredfields) * sizeof(ddef_t));
1868
1869         prog->statements = (dstatement_t *)((unsigned char *)prog->progs + prog->progs->ofs_statements);
1870
1871         prog->statement_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs->numstatements * sizeof(*prog->statement_profile));
1872
1873         //pr_global_struct = (globalvars_t *)((unsigned char *)progs + progs->ofs_globals);
1874         prog->globals.generic = (float *)((unsigned char *)prog->progs + prog->progs->ofs_globals);
1875
1876 // byte swap the lumps
1877         for (i=0 ; i<prog->progs->numstatements ; i++)
1878         {
1879                 prog->statements[i].op = LittleShort(prog->statements[i].op);
1880                 prog->statements[i].a = LittleShort(prog->statements[i].a);
1881                 prog->statements[i].b = LittleShort(prog->statements[i].b);
1882                 prog->statements[i].c = LittleShort(prog->statements[i].c);
1883         }
1884
1885         prog->functions = (mfunction_t *)Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs->numfunctions);
1886         for (i = 0;i < prog->progs->numfunctions;i++)
1887         {
1888                 prog->functions[i].first_statement = LittleLong (dfunctions[i].first_statement);
1889                 prog->functions[i].parm_start = LittleLong (dfunctions[i].parm_start);
1890                 prog->functions[i].s_name = LittleLong (dfunctions[i].s_name);
1891                 prog->functions[i].s_file = LittleLong (dfunctions[i].s_file);
1892                 prog->functions[i].numparms = LittleLong (dfunctions[i].numparms);
1893                 prog->functions[i].locals = LittleLong (dfunctions[i].locals);
1894                 memcpy(prog->functions[i].parm_size, dfunctions[i].parm_size, sizeof(dfunctions[i].parm_size));
1895                 if(prog->functions[i].first_statement >= prog->progs->numstatements)
1896                         PRVM_ERROR("PRVM_LoadProgs: out of bounds function statement (function %d) in %s", i, PRVM_NAME);
1897                 // TODO bounds check parm_start, s_name, s_file, numparms, locals, parm_size
1898         }
1899
1900         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
1901         {
1902                 prog->globaldefs[i].type = LittleShort (prog->globaldefs[i].type);
1903                 prog->globaldefs[i].ofs = LittleShort (prog->globaldefs[i].ofs);
1904                 prog->globaldefs[i].s_name = LittleLong (prog->globaldefs[i].s_name);
1905                 // TODO bounds check ofs, s_name
1906         }
1907
1908         // copy the progs fields to the new fields list
1909         for (i = 0;i < prog->progs->numfielddefs;i++)
1910         {
1911                 prog->fielddefs[i].type = LittleShort (infielddefs[i].type);
1912                 if (prog->fielddefs[i].type & DEF_SAVEGLOBAL)
1913                         PRVM_ERROR ("PRVM_LoadProgs: prog->fielddefs[i].type & DEF_SAVEGLOBAL in %s", PRVM_NAME);
1914                 prog->fielddefs[i].ofs = LittleShort (infielddefs[i].ofs);
1915                 prog->fielddefs[i].s_name = LittleLong (infielddefs[i].s_name);
1916                 // TODO bounds check ofs, s_name
1917         }
1918
1919         // append the required fields
1920         for (i = 0;i < (int) numrequiredfields;i++)
1921         {
1922                 prog->fielddefs[prog->progs->numfielddefs].type = required_field[i].type;
1923                 prog->fielddefs[prog->progs->numfielddefs].ofs = prog->progs->entityfields;
1924                 prog->fielddefs[prog->progs->numfielddefs].s_name = PRVM_SetEngineString(required_field[i].name);
1925                 // TODO bounds check ofs, s_name
1926                 if (prog->fielddefs[prog->progs->numfielddefs].type == ev_vector)
1927                         prog->progs->entityfields += 3;
1928                 else
1929                         prog->progs->entityfields++;
1930                 prog->progs->numfielddefs++;
1931         }
1932         prog->entityfields = prog->progs->entityfields;
1933
1934         // check required functions
1935         for(i=0 ; i < numrequiredfunc ; i++)
1936                 if(PRVM_ED_FindFunction(required_func[i]) == 0)
1937                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_func[i], filename);
1938
1939         // check required globals
1940         for(i=0 ; i < numrequiredglobals ; i++)
1941                 if(PRVM_ED_FindGlobal(required_global[i]) == 0)
1942                         PRVM_ERROR("%s: %s not found in %s",PRVM_NAME, required_global[i], filename);
1943
1944         for (i=0 ; i<prog->progs->numglobals ; i++)
1945                 ((int *)prog->globals.generic)[i] = LittleLong (((int *)prog->globals.generic)[i]);
1946
1947         // LordHavoc: bounds check anything static
1948         for (i = 0,st = prog->statements;i < prog->progs->numstatements;i++,st++)
1949         {
1950                 switch (st->op)
1951                 {
1952                 case OP_IF:
1953                 case OP_IFNOT:
1954                         if ((unsigned short) st->a >= prog->progs->numglobals || st->b + i < 0 || st->b + i >= prog->progs->numstatements)
1955                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds IF/IFNOT (statement %d) in %s", i, PRVM_NAME);
1956                         break;
1957                 case OP_GOTO:
1958                         if (st->a + i < 0 || st->a + i >= prog->progs->numstatements)
1959                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds GOTO (statement %d) in %s", i, PRVM_NAME);
1960                         break;
1961                 // global global global
1962                 case OP_ADD_F:
1963                 case OP_ADD_V:
1964                 case OP_SUB_F:
1965                 case OP_SUB_V:
1966                 case OP_MUL_F:
1967                 case OP_MUL_V:
1968                 case OP_MUL_FV:
1969                 case OP_MUL_VF:
1970                 case OP_DIV_F:
1971                 case OP_BITAND:
1972                 case OP_BITOR:
1973                 case OP_GE:
1974                 case OP_LE:
1975                 case OP_GT:
1976                 case OP_LT:
1977                 case OP_AND:
1978                 case OP_OR:
1979                 case OP_EQ_F:
1980                 case OP_EQ_V:
1981                 case OP_EQ_S:
1982                 case OP_EQ_E:
1983                 case OP_EQ_FNC:
1984                 case OP_NE_F:
1985                 case OP_NE_V:
1986                 case OP_NE_S:
1987                 case OP_NE_E:
1988                 case OP_NE_FNC:
1989                 case OP_ADDRESS:
1990                 case OP_LOAD_F:
1991                 case OP_LOAD_FLD:
1992                 case OP_LOAD_ENT:
1993                 case OP_LOAD_S:
1994                 case OP_LOAD_FNC:
1995                 case OP_LOAD_V:
1996                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
1997                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d)", i);
1998                         break;
1999                 // global none global
2000                 case OP_NOT_F:
2001                 case OP_NOT_V:
2002                 case OP_NOT_S:
2003                 case OP_NOT_FNC:
2004                 case OP_NOT_ENT:
2005                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->c >= prog->progs->numglobals)
2006                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2007                         break;
2008                 // 2 globals
2009                 case OP_STOREP_F:
2010                 case OP_STOREP_ENT:
2011                 case OP_STOREP_FLD:
2012                 case OP_STOREP_S:
2013                 case OP_STOREP_FNC:
2014                 case OP_STORE_F:
2015                 case OP_STORE_ENT:
2016                 case OP_STORE_FLD:
2017                 case OP_STORE_S:
2018                 case OP_STORE_FNC:
2019                 case OP_STATE:
2020                 case OP_STOREP_V:
2021                 case OP_STORE_V:
2022                         if ((unsigned short) st->a >= prog->progs->numglobals || (unsigned short) st->b >= prog->progs->numglobals)
2023                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2024                         break;
2025                 // 1 global
2026                 case OP_CALL0:
2027                 case OP_CALL1:
2028                 case OP_CALL2:
2029                 case OP_CALL3:
2030                 case OP_CALL4:
2031                 case OP_CALL5:
2032                 case OP_CALL6:
2033                 case OP_CALL7:
2034                 case OP_CALL8:
2035                 case OP_DONE:
2036                 case OP_RETURN:
2037                         if ((unsigned short) st->a >= prog->progs->numglobals)
2038                                 PRVM_ERROR("PRVM_LoadProgs: out of bounds global index (statement %d) in %s", i, PRVM_NAME);
2039                         break;
2040                 default:
2041                         Con_DPrintf("PRVM_LoadProgs: unknown opcode %d at statement %d in %s\n", st->op, i, PRVM_NAME);
2042                         break;
2043                 }
2044         }
2045         if(prog->progs->numstatements < 1)
2046         {
2047                 PRVM_ERROR("PRVM_LoadProgs: empty program in %s", PRVM_NAME);
2048         }
2049         else switch(prog->statements[prog->progs->numstatements - 1].op)
2050         {
2051                 case OP_RETURN:
2052                 case OP_GOTO:
2053                 case OP_DONE:
2054                         break;
2055                 default:
2056                         PRVM_ERROR("PRVM_LoadProgs: program may fall off the edge (does not end with RETURN, GOTO or DONE) in %s", PRVM_NAME);
2057                         break;
2058         }
2059
2060         PRVM_LoadLNO(filename);
2061
2062         PRVM_Init_Exec();
2063
2064         for (i=0 ; i<prog->progs->numglobaldefs ; i++)
2065         {
2066                 const char *name;
2067                 name = PRVM_GetString(prog->globaldefs[i].s_name);
2068                 //Con_Printf("found var %s\n", name);
2069                 if(name
2070                         && !strncmp(name, "autocvar_", 9)
2071                         && !(strlen(name) > 1 && name[strlen(name)-2] == '_' && (name[strlen(name)-1] == 'x' || name[strlen(name)-1] == 'y' || name[strlen(name)-1] == 'z'))
2072                 )
2073                 {
2074                         prvm_eval_t *val = (prvm_eval_t *)(prog->globals.generic + prog->globaldefs[i].ofs);
2075                         cvar_t *cvar = Cvar_FindVar(name + 9);
2076                         //Con_Printf("PRVM_LoadProgs: autocvar global %s in %s, processing...\n", name, PRVM_NAME);
2077                         if(!cvar)
2078                         {
2079                                 const char *value;
2080                                 char buf[64];
2081                                 Con_Printf("PRVM_LoadProgs: no cvar for autocvar global %s in %s, creating...\n", name, PRVM_NAME);
2082                                 switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
2083                                 {
2084                                         case ev_float:
2085                                                 if((float)((int)(val->_float)) == val->_float)
2086                                                         dpsnprintf(buf, sizeof(buf), "%i", (int)(val->_float));
2087                                                 else
2088                                                         dpsnprintf(buf, sizeof(buf), "%f", val->_float);
2089                                                 value = buf;
2090                                                 break;
2091                                         case ev_vector:
2092                                                 dpsnprintf(buf, sizeof(buf), "%f %f %f", val->vector[0], val->vector[1], val->vector[2]); value = buf;
2093                                                 break;
2094                                         case ev_string:
2095                                                 value = PRVM_GetString(val->string);
2096                                                 break;
2097                                         default:
2098                                                 Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
2099                                                 goto fail;
2100                                 }
2101                                 cvar = Cvar_Get(name + 9, value, 0, NULL);
2102                                 if((prog->globaldefs[i].type & ~DEF_SAVEGLOBAL) == ev_string)
2103                                 {
2104                                         val->string = PRVM_SetEngineString(cvar->string);
2105                                         cvar->globaldefindex_stringno[prog - prog_list] = val->string;
2106                                 }
2107                                 if(!cvar)
2108                                         PRVM_ERROR("PRVM_LoadProgs: could not create cvar for autocvar global %s in %s", name, PRVM_NAME);
2109                                 cvar->globaldefindex_progid[prog - prog_list] = prog->id;
2110                                 cvar->globaldefindex[prog - prog_list] = i;
2111                         }
2112                         else if((cvar->flags & CVAR_PRIVATE) == 0)
2113                         {
2114                                 // MUST BE SYNCED WITH cvar.c Cvar_Set
2115                                 int j;
2116                                 const char *s;
2117                                 switch(prog->globaldefs[i].type & ~DEF_SAVEGLOBAL)
2118                                 {
2119                                         case ev_float:
2120                                                 val->_float = cvar->value;
2121                                                 break;
2122                                         case ev_vector:
2123                                                 s = cvar->string;
2124                                                 VectorClear(val->vector);
2125                                                 for (j = 0;j < 3;j++)
2126                                                 {
2127                                                         while (*s && ISWHITESPACE(*s))
2128                                                                 s++;
2129                                                         if (!*s)
2130                                                                 break;
2131                                                         val->vector[j] = atof(s);
2132                                                         while (!ISWHITESPACE(*s))
2133                                                                 s++;
2134                                                         if (!*s)
2135                                                                 break;
2136                                                 }
2137                                                 break;
2138                                         case ev_string:
2139                                                 val->string = PRVM_SetEngineString(cvar->string);
2140                                                 cvar->globaldefindex_stringno[prog - prog_list] = val->string;
2141                                                 break;
2142                                         default:
2143                                                 Con_Printf("PRVM_LoadProgs: invalid type of autocvar global %s in %s\n", name, PRVM_NAME);
2144                                                 goto fail;
2145                                 }
2146                                 cvar->globaldefindex_progid[prog - prog_list] = prog->id;
2147                                 cvar->globaldefindex[prog - prog_list] = i;
2148                         }
2149                         else
2150                                 Con_Printf("PRVM_LoadProgs: private cvar for autocvar global %s in %s\n", name, PRVM_NAME);
2151                 }
2152 fail:
2153                 ;
2154         }
2155
2156         prog->loaded = TRUE;
2157
2158         // set flags & ddef_ts in prog
2159
2160         prog->flag = 0;
2161
2162         PRVM_FindOffsets();
2163
2164         PRVM_GCALL(init_cmd)();
2165
2166         // init mempools
2167         PRVM_MEM_Alloc();
2168 }
2169
2170
2171 void PRVM_Fields_f (void)
2172 {
2173         int i, j, ednum, used, usedamount;
2174         int *counts;
2175         char tempstring[MAX_INPUTLINE], tempstring2[260];
2176         const char *name;
2177         prvm_edict_t *ed;
2178         ddef_t *d;
2179         int *v;
2180
2181         // TODO
2182         /*
2183         if (!sv.active)
2184         {
2185                 Con_Print("no progs loaded\n");
2186                 return;
2187         }
2188         */
2189
2190         if(Cmd_Argc() != 2)
2191         {
2192                 Con_Print("prvm_fields <program name>\n");
2193                 return;
2194         }
2195
2196         PRVM_Begin;
2197         if(!PRVM_SetProgFromString(Cmd_Argv(1)))
2198                 return;
2199
2200         counts = (int *)Mem_Alloc(tempmempool, prog->progs->numfielddefs * sizeof(int));
2201         for (ednum = 0;ednum < prog->max_edicts;ednum++)
2202         {
2203                 ed = PRVM_EDICT_NUM(ednum);
2204                 if (ed->priv.required->free)
2205                         continue;
2206                 for (i = 1;i < prog->progs->numfielddefs;i++)
2207                 {
2208                         d = &prog->fielddefs[i];
2209                         name = PRVM_GetString(d->s_name);
2210                         if (name[strlen(name)-2] == '_')
2211                                 continue;       // skip _x, _y, _z vars
2212                         v = (int *)(ed->fields.vp + d->ofs);
2213                         // if the value is still all 0, skip the field
2214                         for (j = 0;j < prvm_type_size[d->type & ~DEF_SAVEGLOBAL];j++)
2215                         {
2216                                 if (v[j])
2217                                 {
2218                                         counts[i]++;
2219                                         break;
2220                                 }
2221                         }
2222                 }
2223         }
2224         used = 0;
2225         usedamount = 0;
2226         tempstring[0] = 0;
2227         for (i = 0;i < prog->progs->numfielddefs;i++)
2228         {
2229                 d = &prog->fielddefs[i];
2230                 name = PRVM_GetString(d->s_name);
2231                 if (name[strlen(name)-2] == '_')
2232                         continue;       // skip _x, _y, _z vars
2233                 switch(d->type & ~DEF_SAVEGLOBAL)
2234                 {
2235                 case ev_string:
2236                         strlcat(tempstring, "string   ", sizeof(tempstring));
2237                         break;
2238                 case ev_entity:
2239                         strlcat(tempstring, "entity   ", sizeof(tempstring));
2240                         break;
2241                 case ev_function:
2242                         strlcat(tempstring, "function ", sizeof(tempstring));
2243                         break;
2244                 case ev_field:
2245                         strlcat(tempstring, "field    ", sizeof(tempstring));
2246                         break;
2247                 case ev_void:
2248                         strlcat(tempstring, "void     ", sizeof(tempstring));
2249                         break;
2250                 case ev_float:
2251                         strlcat(tempstring, "float    ", sizeof(tempstring));
2252                         break;
2253                 case ev_vector:
2254                         strlcat(tempstring, "vector   ", sizeof(tempstring));
2255                         break;
2256                 case ev_pointer:
2257                         strlcat(tempstring, "pointer  ", sizeof(tempstring));
2258                         break;
2259                 default:
2260                         dpsnprintf (tempstring2, sizeof(tempstring2), "bad type %i ", d->type & ~DEF_SAVEGLOBAL);
2261                         strlcat(tempstring, tempstring2, sizeof(tempstring));
2262                         break;
2263                 }
2264                 if (strlen(name) > sizeof(tempstring2)-4)
2265                 {
2266                         memcpy (tempstring2, name, sizeof(tempstring2)-4);
2267                         tempstring2[sizeof(tempstring2)-4] = tempstring2[sizeof(tempstring2)-3] = tempstring2[sizeof(tempstring2)-2] = '.';
2268                         tempstring2[sizeof(tempstring2)-1] = 0;
2269                         name = tempstring2;
2270                 }
2271                 strlcat(tempstring, name, sizeof(tempstring));
2272                 for (j = (int)strlen(name);j < 25;j++)
2273                         strlcat(tempstring, " ", sizeof(tempstring));
2274                 dpsnprintf(tempstring2, sizeof(tempstring2), "%5d", counts[i]);
2275                 strlcat(tempstring, tempstring2, sizeof(tempstring));
2276                 strlcat(tempstring, "\n", sizeof(tempstring));
2277                 if (strlen(tempstring) >= sizeof(tempstring)/2)
2278                 {
2279                         Con_Print(tempstring);
2280                         tempstring[0] = 0;
2281                 }
2282                 if (counts[i])
2283                 {
2284                         used++;
2285                         usedamount += prvm_type_size[d->type & ~DEF_SAVEGLOBAL];
2286                 }
2287         }
2288         Mem_Free(counts);
2289         Con_Printf("%s: %i entity fields (%i in use), totalling %i bytes per edict (%i in use), %i edicts allocated, %i bytes total spent on edict fields (%i needed)\n", PRVM_NAME, prog->progs->entityfields, used, prog->progs->entityfields * 4, usedamount * 4, prog->max_edicts, prog->progs->entityfields * 4 * prog->max_edicts, usedamount * 4 * prog->max_edicts);
2290
2291         PRVM_End;
2292 }
2293
2294 void PRVM_Globals_f (void)
2295 {
2296         int i;
2297         const char *wildcard;
2298         int numculled;
2299                 numculled = 0;
2300         // TODO
2301         /*if (!sv.active)
2302         {
2303                 Con_Print("no progs loaded\n");
2304                 return;
2305         }*/
2306         if(Cmd_Argc () < 2 || Cmd_Argc() > 3)
2307         {
2308                 Con_Print("prvm_globals <program name> <optional name wildcard>\n");
2309                 return;
2310         }
2311
2312         PRVM_Begin;
2313         if(!PRVM_SetProgFromString (Cmd_Argv (1)))
2314                 return;
2315
2316         if( Cmd_Argc() == 3)
2317                 wildcard = Cmd_Argv(2);
2318         else
2319                 wildcard = NULL;
2320
2321         Con_Printf("%s :", PRVM_NAME);
2322
2323         for (i = 0;i < prog->progs->numglobaldefs;i++)
2324         {
2325                 if(wildcard)
2326                         if( !matchpattern( PRVM_GetString(prog->globaldefs[i].s_name), wildcard, 1) )
2327                         {
2328                                 numculled++;
2329                                 continue;
2330                         }
2331                 Con_Printf("%s\n", PRVM_GetString(prog->globaldefs[i].s_name));
2332         }
2333         Con_Printf("%i global variables, %i culled, totalling %i bytes\n", prog->progs->numglobals, numculled, prog->progs->numglobals * 4);
2334
2335         PRVM_End;
2336 }
2337
2338 /*
2339 ===============
2340 PRVM_Global
2341 ===============
2342 */
2343 void PRVM_Global_f(void)
2344 {
2345         ddef_t *global;
2346         if( Cmd_Argc() != 3 ) {
2347                 Con_Printf( "prvm_global <program name> <global name>\n" );
2348                 return;
2349         }
2350
2351         PRVM_Begin;
2352         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2353                 return;
2354
2355         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2356         if( !global )
2357                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2358         else
2359                 Con_Printf( "%s: %s\n", Cmd_Argv(2), PRVM_ValueString( (etype_t)global->type, (prvm_eval_t *) &prog->globals.generic[ global->ofs ] ) );
2360         PRVM_End;
2361 }
2362
2363 /*
2364 ===============
2365 PRVM_GlobalSet
2366 ===============
2367 */
2368 void PRVM_GlobalSet_f(void)
2369 {
2370         ddef_t *global;
2371         if( Cmd_Argc() != 4 ) {
2372                 Con_Printf( "prvm_globalset <program name> <global name> <value>\n" );
2373                 return;
2374         }
2375
2376         PRVM_Begin;
2377         if( !PRVM_SetProgFromString( Cmd_Argv(1) ) )
2378                 return;
2379
2380         global = PRVM_ED_FindGlobal( Cmd_Argv(2) );
2381         if( !global )
2382                 Con_Printf( "No global '%s' in %s!\n", Cmd_Argv(2), Cmd_Argv(1) );
2383         else
2384                 PRVM_ED_ParseEpair( NULL, global, Cmd_Argv(3), true );
2385         PRVM_End;
2386 }
2387
2388 /*
2389 ===============
2390 PRVM_Init
2391 ===============
2392 */
2393 void PRVM_Init (void)
2394 {
2395         Cmd_AddCommand ("prvm_edict", PRVM_ED_PrintEdict_f, "print all data about an entity number in the selected VM (server, client, menu)");
2396         Cmd_AddCommand ("prvm_edicts", PRVM_ED_PrintEdicts_f, "prints all data about all entities in the selected VM (server, client, menu)");
2397         Cmd_AddCommand ("prvm_edictcount", PRVM_ED_Count_f, "prints number of active entities in the selected VM (server, client, menu)");
2398         Cmd_AddCommand ("prvm_profile", PRVM_Profile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu)");
2399         Cmd_AddCommand ("prvm_childprofile", PRVM_ChildProfile_f, "prints execution statistics about the most used QuakeC functions in the selected VM (server, client, menu), sorted by time taken in function with child calls");
2400         Cmd_AddCommand ("prvm_callprofile", PRVM_CallProfile_f, "prints execution statistics about the most time consuming QuakeC calls from the engine in the selected VM (server, client, menu)");
2401         Cmd_AddCommand ("prvm_fields", PRVM_Fields_f, "prints usage statistics on properties (how many entities have non-zero values) in the selected VM (server, client, menu)");
2402         Cmd_AddCommand ("prvm_globals", PRVM_Globals_f, "prints all global variables in the selected VM (server, client, menu)");
2403         Cmd_AddCommand ("prvm_global", PRVM_Global_f, "prints value of a specified global variable in the selected VM (server, client, menu)");
2404         Cmd_AddCommand ("prvm_globalset", PRVM_GlobalSet_f, "sets value of a specified global variable in the selected VM (server, client, menu)");
2405         Cmd_AddCommand ("prvm_edictset", PRVM_ED_EdictSet_f, "changes value of a specified property of a specified entity in the selected VM (server, client, menu)");
2406         Cmd_AddCommand ("prvm_edictget", PRVM_ED_EdictGet_f, "retrieves the value of a specified property of a specified entity in the selected VM (server, client menu) into a cvar or to the console");
2407         Cmd_AddCommand ("prvm_globalget", PRVM_ED_GlobalGet_f, "retrieves the value of a specified global variable in the selected VM (server, client menu) into a cvar or to the console");
2408         Cmd_AddCommand ("prvm_printfunction", PRVM_PrintFunction_f, "prints a disassembly (QuakeC instructions) of the specified function in the selected VM (server, client, menu)");
2409         Cmd_AddCommand ("cl_cmd", PRVM_GameCommand_Client_f, "calls the client QC function GameCommand with the supplied string as argument");
2410         Cmd_AddCommand ("menu_cmd", PRVM_GameCommand_Menu_f, "calls the menu QC function GameCommand with the supplied string as argument");
2411         Cmd_AddCommand ("sv_cmd", PRVM_GameCommand_Server_f, "calls the server QC function GameCommand with the supplied string as argument");
2412
2413         // COMMANDLINEOPTION: PRVM: -noboundscheck disables the bounds checks (security hole if CSQC is in use!)
2414         prvm_boundscheck = !COM_CheckParm("-noboundscheck");
2415
2416         Cvar_RegisterVariable (&prvm_traceqc);
2417         Cvar_RegisterVariable (&prvm_statementprofiling);
2418         Cvar_RegisterVariable (&prvm_backtraceforwarnings);
2419         Cvar_RegisterVariable (&prvm_leaktest);
2420         Cvar_RegisterVariable (&prvm_leaktest_ignore_classnames);
2421         Cvar_RegisterVariable (&prvm_errordump);
2422         Cvar_RegisterVariable (&prvm_reuseedicts_startuptime);
2423         Cvar_RegisterVariable (&prvm_reuseedicts_neverinsameframe);
2424
2425         // COMMANDLINEOPTION: PRVM: -norunaway disables the runaway loop check (it might be impossible to exit DarkPlaces if used!)
2426         prvm_runawaycheck = !COM_CheckParm("-norunaway");
2427
2428         //VM_Cmd_Init();
2429 }
2430
2431 /*
2432 ===============
2433 PRVM_InitProg
2434 ===============
2435 */
2436 void PRVM_InitProg(int prognr)
2437 {
2438         static unsigned int progid = 0;
2439
2440         if(prognr < 0 || prognr >= PRVM_MAXPROGS)
2441                 Sys_Error("PRVM_InitProg: Invalid program number %i",prognr);
2442
2443         prog = &prog_list[prognr];
2444
2445         if(prog->loaded)
2446                 PRVM_ResetProg();
2447
2448         memset(prog, 0, sizeof(prvm_prog_t));
2449         prog->starttime = Sys_DoubleTime();
2450         prog->id = ++progid;
2451
2452         prog->error_cmd = Host_Error;
2453         prog->leaktest_active = prvm_leaktest.integer != 0;
2454 }
2455
2456 int PRVM_GetProgNr(void)
2457 {
2458         return prog - prog_list;
2459 }
2460
2461 void *_PRVM_Alloc(size_t buffersize, const char *filename, int fileline)
2462 {
2463         return _Mem_Alloc(prog->progs_mempool, NULL, buffersize, 16, filename, fileline);
2464 }
2465
2466 void _PRVM_Free(void *buffer, const char *filename, int fileline)
2467 {
2468         _Mem_Free(buffer, filename, fileline);
2469 }
2470
2471 void _PRVM_FreeAll(const char *filename, int fileline)
2472 {
2473         prog->progs = NULL;
2474         prog->fielddefs = NULL;
2475         prog->functions = NULL;
2476         _Mem_EmptyPool(prog->progs_mempool, filename, fileline);
2477 }
2478
2479 // LordHavoc: turned PRVM_EDICT_NUM into a #define for speed reasons
2480 unsigned int PRVM_EDICT_NUM_ERROR(unsigned int n, char *filename, int fileline)
2481 {
2482         PRVM_ERROR ("PRVM_EDICT_NUM: %s: bad number %i (called at %s:%i)", PRVM_NAME, n, filename, fileline);
2483         return 0;
2484 }
2485
2486 sizebuf_t vm_tempstringsbuf;
2487
2488 const char *PRVM_GetString(int num)
2489 {
2490         if (num >= 0)
2491         {
2492                 if (num < prog->stringssize)
2493                         return prog->strings + num;
2494                 else
2495 #if 1
2496                 if (num <= prog->stringssize + vm_tempstringsbuf.maxsize)
2497                 {
2498                         num -= prog->stringssize;
2499                         if (num < vm_tempstringsbuf.cursize)
2500                                 return (char *)vm_tempstringsbuf.data + num;
2501                         else
2502                         {
2503                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2504                                 return "";
2505                         }
2506                 }
2507                 else
2508 #endif
2509                 {
2510                         VM_Warning("PRVM_GetString: Invalid constant-string offset (%i >= %i prog->stringssize)\n", num, prog->stringssize);
2511                         return "";
2512                 }
2513         }
2514         else
2515         {
2516                 num = -1 - num;
2517 #if 0
2518                 if (num >= (1<<30))
2519                 {
2520                         // special range reserved for tempstrings
2521                         num -= (1<<30);
2522                         if (num < vm_tempstringsbuf.cursize)
2523                                 return (char *)vm_tempstringsbuf.data + num;
2524                         else
2525                         {
2526                                 VM_Warning("PRVM_GetString: Invalid temp-string offset (%i >= %i vm_tempstringsbuf.cursize)\n", num, vm_tempstringsbuf.cursize);
2527                                 return "";
2528                         }
2529                 }
2530                 else
2531 #endif
2532                 if (num < prog->numknownstrings)
2533                 {
2534                         if (!prog->knownstrings[num])
2535                         {
2536                                 VM_Warning("PRVM_GetString: Invalid zone-string offset (%i has been freed)\n", num);
2537                                 return "";
2538                         }
2539                         return prog->knownstrings[num];
2540                 }
2541                 else
2542                 {
2543                         VM_Warning("PRVM_GetString: Invalid zone-string offset (%i >= %i)\n", num, prog->numknownstrings);
2544                         return "";
2545                 }
2546         }
2547 }
2548
2549 const char *PRVM_ChangeEngineString(int i, const char *s)
2550 {
2551         const char *old;
2552         i = -1 - i;
2553         if(i < 0 || i >= prog->numknownstrings)
2554                 PRVM_ERROR("PRVM_ChangeEngineString: s is not an engine string");
2555         old = prog->knownstrings[i];
2556         prog->knownstrings[i] = s;
2557         return old;
2558 }
2559
2560 int PRVM_SetEngineString(const char *s)
2561 {
2562         int i;
2563         if (!s)
2564                 return 0;
2565         if (s >= prog->strings && s <= prog->strings + prog->stringssize)
2566                 PRVM_ERROR("PRVM_SetEngineString: s in prog->strings area");
2567         // if it's in the tempstrings area, use a reserved range
2568         // (otherwise we'd get millions of useless string offsets cluttering the database)
2569         if (s >= (char *)vm_tempstringsbuf.data && s < (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.maxsize)
2570 #if 1
2571                 return prog->stringssize + (s - (char *)vm_tempstringsbuf.data);
2572 #else
2573                 return -1 - ((1<<30) + (s - (char *)vm_tempstringsbuf.data));
2574 #endif
2575         // see if it's a known string address
2576         for (i = 0;i < prog->numknownstrings;i++)
2577                 if (prog->knownstrings[i] == s)
2578                         return -1 - i;
2579         // new unknown engine string
2580         if (developer.integer >= 200)
2581                 Con_Printf("new engine string %p = \"%s\"\n", s, s);
2582         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2583                 if (!prog->knownstrings[i])
2584                         break;
2585         if (i >= prog->numknownstrings)
2586         {
2587                 if (i >= prog->maxknownstrings)
2588                 {
2589                         const char **oldstrings = prog->knownstrings;
2590                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2591                         const char **oldstrings_origin = prog->knownstrings_origin;
2592                         prog->maxknownstrings += 128;
2593                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2594                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2595                         if(prog->leaktest_active)
2596                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2597                         if (prog->numknownstrings)
2598                         {
2599                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2600                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2601                                 if(prog->leaktest_active)
2602                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2603                         }
2604                 }
2605                 prog->numknownstrings++;
2606         }
2607         prog->firstfreeknownstring = i + 1;
2608         prog->knownstrings[i] = s;
2609         prog->knownstrings_freeable[i] = false;
2610         if(prog->leaktest_active)
2611                 prog->knownstrings_origin[i] = NULL;
2612         return -1 - i;
2613 }
2614
2615 // temp string handling
2616
2617 // all tempstrings go into this buffer consecutively, and it is reset
2618 // whenever PRVM_ExecuteProgram returns to the engine
2619 // (technically each PRVM_ExecuteProgram call saves the cursize value and
2620 //  restores it on return, so multiple recursive calls can share the same
2621 //  buffer)
2622 // the buffer size is automatically grown as needed
2623
2624 int PRVM_SetTempString(const char *s)
2625 {
2626         int size;
2627         char *t;
2628         if (!s)
2629                 return 0;
2630         size = (int)strlen(s) + 1;
2631         if (developer.integer >= 300)
2632                 Con_Printf("PRVM_SetTempString: cursize %i, size %i\n", vm_tempstringsbuf.cursize, size);
2633         if (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2634         {
2635                 sizebuf_t old = vm_tempstringsbuf;
2636                 if (vm_tempstringsbuf.cursize + size >= 1<<28)
2637                         PRVM_ERROR("PRVM_SetTempString: ran out of tempstring memory!  (refusing to grow tempstring buffer over 256MB, cursize %i, size %i)\n", vm_tempstringsbuf.cursize, size);
2638                 vm_tempstringsbuf.maxsize = max(vm_tempstringsbuf.maxsize, 65536);
2639                 while (vm_tempstringsbuf.maxsize < vm_tempstringsbuf.cursize + size)
2640                         vm_tempstringsbuf.maxsize *= 2;
2641                 if (vm_tempstringsbuf.maxsize != old.maxsize || vm_tempstringsbuf.data == NULL)
2642                 {
2643                         if (developer.integer >= 100)
2644                                 Con_Printf("PRVM_SetTempString: enlarging tempstrings buffer (%iKB -> %iKB)\n", old.maxsize/1024, vm_tempstringsbuf.maxsize/1024);
2645                         vm_tempstringsbuf.data = (unsigned char *) Mem_Alloc(sv_mempool, vm_tempstringsbuf.maxsize);
2646                         if (old.cursize)
2647                                 memcpy(vm_tempstringsbuf.data, old.data, old.cursize);
2648                         if (old.data)
2649                                 Mem_Free(old.data);
2650                 }
2651         }
2652         t = (char *)vm_tempstringsbuf.data + vm_tempstringsbuf.cursize;
2653         memcpy(t, s, size);
2654         vm_tempstringsbuf.cursize += size;
2655         return PRVM_SetEngineString(t);
2656 }
2657
2658 int PRVM_AllocString(size_t bufferlength, char **pointer)
2659 {
2660         int i;
2661         if (!bufferlength)
2662                 return 0;
2663         for (i = prog->firstfreeknownstring;i < prog->numknownstrings;i++)
2664                 if (!prog->knownstrings[i])
2665                         break;
2666         if (i >= prog->numknownstrings)
2667         {
2668                 if (i >= prog->maxknownstrings)
2669                 {
2670                         const char **oldstrings = prog->knownstrings;
2671                         const unsigned char *oldstrings_freeable = prog->knownstrings_freeable;
2672                         const char **oldstrings_origin = prog->knownstrings_origin;
2673                         prog->maxknownstrings += 128;
2674                         prog->knownstrings = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2675                         prog->knownstrings_freeable = (unsigned char *)PRVM_Alloc(prog->maxknownstrings * sizeof(unsigned char));
2676                         if(prog->leaktest_active)
2677                                 prog->knownstrings_origin = (const char **)PRVM_Alloc(prog->maxknownstrings * sizeof(char *));
2678                         if (prog->numknownstrings)
2679                         {
2680                                 memcpy((char **)prog->knownstrings, oldstrings, prog->numknownstrings * sizeof(char *));
2681                                 memcpy((char **)prog->knownstrings_freeable, oldstrings_freeable, prog->numknownstrings * sizeof(unsigned char));
2682                                 if(prog->leaktest_active)
2683                                         memcpy((char **)prog->knownstrings_origin, oldstrings_origin, prog->numknownstrings * sizeof(char *));
2684                         }
2685                         // TODO why not Mem_Free the old ones?
2686                 }
2687                 prog->numknownstrings++;
2688         }
2689         prog->firstfreeknownstring = i + 1;
2690         prog->knownstrings[i] = (char *)PRVM_Alloc(bufferlength);
2691         prog->knownstrings_freeable[i] = true;
2692         if(prog->leaktest_active)
2693                 prog->knownstrings_origin[i] = PRVM_AllocationOrigin();
2694         if (pointer)
2695                 *pointer = (char *)(prog->knownstrings[i]);
2696         return -1 - i;
2697 }
2698
2699 void PRVM_FreeString(int num)
2700 {
2701         if (num == 0)
2702                 PRVM_ERROR("PRVM_FreeString: attempt to free a NULL string");
2703         else if (num >= 0 && num < prog->stringssize)
2704                 PRVM_ERROR("PRVM_FreeString: attempt to free a constant string");
2705         else if (num < 0 && num >= -prog->numknownstrings)
2706         {
2707                 num = -1 - num;
2708                 if (!prog->knownstrings[num])
2709                         PRVM_ERROR("PRVM_FreeString: attempt to free a non-existent or already freed string");
2710                 if (!prog->knownstrings_freeable[num])
2711                         PRVM_ERROR("PRVM_FreeString: attempt to free a string owned by the engine");
2712                 PRVM_Free((char *)prog->knownstrings[num]);
2713                 if(prog->leaktest_active)
2714                         if(prog->knownstrings_origin[num])
2715                                 PRVM_Free((char *)prog->knownstrings_origin[num]);
2716                 prog->knownstrings[num] = NULL;
2717                 prog->knownstrings_freeable[num] = false;
2718                 prog->firstfreeknownstring = min(prog->firstfreeknownstring, num);
2719         }
2720         else
2721                 PRVM_ERROR("PRVM_FreeString: invalid string offset %i", num);
2722 }
2723
2724 static qboolean PRVM_IsStringReferenced(string_t string)
2725 {
2726         int i, j;
2727
2728         for (i = 0;i < prog->progs->numglobaldefs;i++)
2729         {
2730                 ddef_t *d = &prog->globaldefs[i];
2731                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
2732                         continue;
2733                 if(string == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->string)
2734                         return true;
2735         }
2736
2737         for(j = 0; j < prog->num_edicts; ++j)
2738         {
2739                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2740                 if (ed->priv.required->free)
2741                         continue;
2742                 for (i=0; i<prog->progs->numfielddefs; ++i)
2743                 {
2744                         ddef_t *d = &prog->fielddefs[i];
2745                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_string)
2746                                 continue;
2747                         if(string == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->string)
2748                                 return true;
2749                 }
2750         }
2751
2752         return false;
2753 }
2754
2755 static qboolean PRVM_IsEdictRelevant(prvm_edict_t *edict)
2756 {
2757         if(PRVM_NUM_FOR_EDICT(edict) <= prog->reserved_edicts)
2758                 return true; // world or clients
2759         switch(prog - prog_list)
2760         {
2761                 case PRVM_SERVERPROG:
2762                         {
2763                                 entvars_t *ev = edict->fields.server;
2764                                 if(ev->solid) // can block other stuff, or is a trigger?
2765                                         return true;
2766                                 if(ev->modelindex) // visible ent?
2767                                         return true;
2768                                 if(ev->effects) // particle effect?
2769                                         return true;
2770                                 if(ev->think) // has a think function?
2771                                         if(ev->nextthink > 0) // that actually will eventually run?
2772                                                 return true;
2773                                 if(ev->takedamage)
2774                                         return true;
2775                                 if(*prvm_leaktest_ignore_classnames.string)
2776                                 {
2777                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
2778                                                 return true;
2779                                 }
2780                         }
2781                         break;
2782                 case PRVM_CLIENTPROG:
2783                         {
2784                                 // TODO someone add more stuff here
2785                                 cl_entvars_t *ev = edict->fields.client;
2786                                 if(ev->entnum) // csqc networked
2787                                         return true;
2788                                 if(ev->modelindex) // visible ent?
2789                                         return true;
2790                                 if(ev->effects) // particle effect?
2791                                         return true;
2792                                 if(ev->think) // has a think function?
2793                                         if(ev->nextthink > 0) // that actually will eventually run?
2794                                                 return true;
2795                                 if(*prvm_leaktest_ignore_classnames.string)
2796                                 {
2797                                         if(strstr(va(" %s ", prvm_leaktest_ignore_classnames.string), va(" %s ", PRVM_GetString(ev->classname))))
2798                                                 return true;
2799                                 }
2800                         }
2801                         break;
2802                 case PRVM_MENUPROG:
2803                         // menu prog does not have classnames
2804                         break;
2805         }
2806         return false;
2807 }
2808
2809 static qboolean PRVM_IsEdictReferenced(prvm_edict_t *edict, int mark)
2810 {
2811         int i, j;
2812         int edictnum = PRVM_NUM_FOR_EDICT(edict);
2813         const char *targetname = NULL;
2814
2815         switch(prog - prog_list)
2816         {
2817                 case PRVM_SERVERPROG:
2818                         targetname = PRVM_GetString(edict->fields.server->targetname);
2819                         break;
2820         }
2821
2822         if(targetname)
2823                 if(!*targetname) // ""
2824                         targetname = NULL;
2825
2826         for (i = 0;i < prog->progs->numglobaldefs;i++)
2827         {
2828                 ddef_t *d = &prog->globaldefs[i];
2829                 if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
2830                         continue;
2831                 if(edictnum == ((prvm_eval_t *) &prog->globals.generic[d->ofs])->edict)
2832                         return true;
2833         }
2834
2835         for(j = 0; j < prog->num_edicts; ++j)
2836         {
2837                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2838                 if (ed->priv.required->mark < mark)
2839                         continue;
2840                 if(ed == edict)
2841                         continue;
2842                 if(targetname)
2843                 {
2844                         const char *target = PRVM_GetString(ed->fields.server->target);
2845                         if(target)
2846                                 if(!strcmp(target, targetname))
2847                                         return true;
2848                 }
2849                 for (i=0; i<prog->progs->numfielddefs; ++i)
2850                 {
2851                         ddef_t *d = &prog->fielddefs[i];
2852                         if((etype_t)((int) d->type & ~DEF_SAVEGLOBAL) != ev_entity)
2853                                 continue;
2854                         if(edictnum == ((prvm_eval_t *) &ed->fields.vp[d->ofs])->edict)
2855                                 return true;
2856                 }
2857         }
2858
2859         return false;
2860 }
2861
2862 static void PRVM_MarkReferencedEdicts(void)
2863 {
2864         int j;
2865         qboolean found_new;
2866         int stage;
2867
2868         for(j = 0; j < prog->num_edicts; ++j)
2869         {
2870                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2871                 if(ed->priv.required->free)
2872                         continue;
2873                 ed->priv.required->mark = PRVM_IsEdictRelevant(ed) ? 1 : 0;
2874         }
2875
2876         stage = 1;
2877         do
2878         {
2879                 found_new = false;
2880                 for(j = 0; j < prog->num_edicts; ++j)
2881                 {
2882                         prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2883                         if(ed->priv.required->free)
2884                                 continue;
2885                         if(ed->priv.required->mark)
2886                                 continue;
2887                         if(PRVM_IsEdictReferenced(ed, stage))
2888                         {
2889                                 ed->priv.required->mark = stage + 1;
2890                                 found_new = true;
2891                         }
2892                 }
2893                 ++stage;
2894         }
2895         while(found_new);
2896         Con_DPrintf("leak check used %d stages to find all references\n", stage);
2897 }
2898
2899 void PRVM_LeakTest(void)
2900 {
2901         int i, j;
2902         qboolean leaked = false;
2903
2904         if(!prog->leaktest_active)
2905                 return;
2906
2907         // 1. Strings
2908         for (i = 0; i < prog->numknownstrings; ++i)
2909         {
2910                 if(prog->knownstrings[i])
2911                 if(prog->knownstrings_freeable[i])
2912                 if(prog->knownstrings_origin[i])
2913                 if(!PRVM_IsStringReferenced(-1 - i))
2914                 {
2915                         Con_Printf("Unreferenced string found!\n  Value: %s\n  Origin: %s\n", prog->knownstrings[i], prog->knownstrings_origin[i]);
2916                         leaked = true;
2917                 }
2918         }
2919
2920         // 2. Edicts
2921         PRVM_MarkReferencedEdicts();
2922         for(j = 0; j < prog->num_edicts; ++j)
2923         {
2924                 prvm_edict_t *ed = PRVM_EDICT_NUM(j);
2925                 if(ed->priv.required->free)
2926                         continue;
2927                 if(!ed->priv.required->mark)
2928                 if(ed->priv.required->allocation_origin)
2929                 {
2930                         Con_Printf("Unreferenced edict found!\n  Allocated at: %s\n", ed->priv.required->allocation_origin);
2931                         PRVM_ED_Print(ed, NULL);
2932                         Con_Print("\n");
2933                         leaked = true;
2934                 }
2935         }
2936
2937         for (i = 0; i < (int)Mem_ExpandableArray_IndexRange(&prog->stringbuffersarray); ++i)
2938         {
2939                 prvm_stringbuffer_t *stringbuffer = (prvm_stringbuffer_t*) Mem_ExpandableArray_RecordAtIndex(&prog->stringbuffersarray, i);
2940                 if(stringbuffer)
2941                 if(stringbuffer->origin)
2942                 {
2943                         Con_Printf("Open string buffer handle found!\n  Allocated at: %s\n", stringbuffer->origin);
2944                         leaked = true;
2945                 }
2946         }
2947
2948         for(i = 0; i < PRVM_MAX_OPENFILES; ++i)
2949         {
2950                 if(prog->openfiles[i])
2951                 if(prog->openfiles_origin[i])
2952                 {
2953                         Con_Printf("Open file handle found!\n  Allocated at: %s\n", prog->openfiles_origin[i]);
2954                         leaked = true;
2955                 }
2956         }
2957
2958         for(i = 0; i < PRVM_MAX_OPENSEARCHES; ++i)
2959         {
2960                 if(prog->opensearches[i])
2961                 if(prog->opensearches_origin[i])
2962                 {
2963                         Con_Printf("Open search handle found!\n  Allocated at: %s\n", prog->opensearches_origin[i]);
2964                         leaked = true;
2965                 }
2966         }
2967
2968         if(!leaked)
2969                 Con_Printf("Congratulations. No leaks found.\n");
2970 }