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