1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Crossfire TRT is free software; you can redistribute it and/or modify it |
8 | * Deliantra is free software: you can redistribute it and/or modify |
9 | * under the terms of the GNU General Public License as published by the Free |
9 | * it under the terms of the GNU General Public License as published by |
10 | * Software Foundation; either version 2 of the License, or (at your option) |
10 | * the Free Software Foundation, either version 3 of the License, or |
11 | * any later version. |
11 | * (at your option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, but |
13 | * This program is distributed in the hope that it will be useful, |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * for more details. |
16 | * GNU General Public License for more details. |
17 | * |
17 | * |
18 | * You should have received a copy of the GNU General Public License along |
18 | * You should have received a copy of the GNU General Public License |
19 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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21 | * |
20 | * |
22 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
23 | */ |
22 | */ |
24 | |
23 | |
25 | #include <cassert> |
24 | #include <cassert> |
26 | |
25 | |
27 | #include <global.h> |
26 | #include <global.h> |
… | |
… | |
29 | #include <loader.h> |
28 | #include <loader.h> |
30 | |
29 | |
31 | #include <tr1/functional> |
30 | #include <tr1/functional> |
32 | #include <tr1/unordered_map> |
31 | #include <tr1/unordered_map> |
33 | |
32 | |
34 | /* The naming of these functions is really poor - they are all |
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35 | * pretty much named '.._arch_...', but they may more may not |
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36 | * return archetypes. Some make the arch_to_object call, and thus |
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37 | * return an object. Perhaps those should be called 'archob' functions |
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38 | * to denote they return an object derived from the archetype. |
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39 | * MSW 2003-04-29 |
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40 | */ |
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41 | |
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42 | bool loading_arch; // ugly flag to object laoder etc. to suppress/request special processing |
33 | archetype *loading_arch; // ugly flag to object loader etc. to suppress/request special processing |
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34 | arch_ptr archetype::empty; |
43 | |
35 | |
44 | // the hashtable |
36 | // the hashtable |
45 | typedef std::tr1::unordered_map |
37 | typedef std::tr1::unordered_map |
46 | < |
38 | < |
47 | const char *, |
39 | const char *, |
… | |
… | |
49 | str_hash, |
41 | str_hash, |
50 | str_equal, |
42 | str_equal, |
51 | slice_allocator< std::pair<const char *const, arch_ptr> > |
43 | slice_allocator< std::pair<const char *const, arch_ptr> > |
52 | > HT; |
44 | > HT; |
53 | |
45 | |
54 | static HT ht (5000); |
46 | static HT ht (10000); |
55 | archvec archetypes; |
47 | archvec archetypes; |
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48 | static unordered_vector<archetype *> allarch; |
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49 | static int dirtycnt; |
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50 | |
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51 | // the vector of other_arch references to be resolved |
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52 | static std::vector< std::pair<arch_ptr *, shstr> > postponed_arch_ref; |
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53 | // the vector of loaded but not yet committed archetypes |
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54 | static std::vector<archetype *> postponed_arch; |
56 | |
55 | |
57 | /** |
56 | /** |
58 | * GROS - This function retrieves an archetype given the name that appears |
57 | * GROS - This function retrieves an archetype given the name that appears |
59 | * during the game (for example, "writing pen" instead of "stylus"). |
58 | * during the game (for example, "writing pen" instead of "stylus"). |
60 | * It does not use the hashtable system, but browse the whole archlist each time. |
59 | * It does not use the hashtable system, but browse the whole archlist each time. |
… | |
… | |
277 | return 0; |
276 | return 0; |
278 | } |
277 | } |
279 | |
278 | |
280 | archetype::archetype (const char *name) |
279 | archetype::archetype (const char *name) |
281 | { |
280 | { |
282 | stub = true; |
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283 | arch = this; |
281 | arch = this; |
284 | this->archname = this->name = this->name_pl = name; |
282 | this->archname = this->name = this->name_pl = name; |
285 | } |
283 | } |
286 | |
284 | |
287 | archetype::~archetype () |
285 | archetype::~archetype () |
… | |
… | |
290 | } |
288 | } |
291 | |
289 | |
292 | void |
290 | void |
293 | archetype::link () |
291 | archetype::link () |
294 | { |
292 | { |
295 | ht.insert (std::make_pair (archname, this)); |
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296 | |
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297 | if (!archetypes.contains (this)) |
293 | if (!archetypes.contains (this)) |
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294 | { |
298 | archetypes.insert (this); |
295 | archetypes.insert (this); |
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296 | ht.insert (std::make_pair (archname, this)); |
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297 | } |
299 | } |
298 | } |
300 | |
299 | |
301 | void |
300 | void |
302 | archetype::unlink () |
301 | archetype::unlink () |
303 | { |
302 | { |
304 | ht.erase (archname); |
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305 | if (!strcmp (&archname, "Gaea")) fprintf (stderr, "oI\n");//D |
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306 | if (archetypes.contains (this)) |
303 | if (archetypes.contains (this)) |
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304 | { |
307 | archetypes.erase (this); |
305 | archetypes.erase (this); |
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306 | ht.erase (archname); |
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307 | } |
308 | } |
308 | } |
309 | |
309 | |
310 | /* |
310 | /* |
311 | * Finds, using the hashtable, which archetype matches the given name. |
311 | * Finds, using the hashtable, which archetype matches the given name. |
312 | * returns a pointer to the found archetype, otherwise NULL. |
312 | * returns a pointer to the found archetype, otherwise NULL. |
… | |
… | |
324 | else |
324 | else |
325 | return i->second; |
325 | return i->second; |
326 | } |
326 | } |
327 | |
327 | |
328 | archetype * |
328 | archetype * |
329 | archetype::get (const char *name) |
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330 | { |
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331 | if (!name) |
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332 | { |
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333 | LOG (llevError, "null archetype requested\n"); |
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334 | name = "(null)"; |
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335 | } |
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336 | |
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337 | archetype *at = find (name); |
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338 | |
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339 | if (!at) |
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340 | { |
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341 | at = new archetype (name); |
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342 | at->link (); |
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343 | } |
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344 | |
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345 | return at; |
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346 | } |
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347 | |
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348 | archetype * |
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349 | archetype::read (object_thawer &f) |
329 | archetype::read (object_thawer &f) |
350 | { |
330 | { |
351 | assert (f.kw == KW_object); |
331 | assert (f.kw == KW_object); |
352 | |
332 | |
353 | loading_arch = true; // hack to tell parse_kv et al. to behave |
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354 | |
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355 | std::vector<archetype *> parts; |
333 | std::vector<archetype *> parts; |
356 | |
334 | |
357 | coroapi::cede_to_tick_every (10); |
335 | coroapi::cede_to_tick (); |
358 | |
336 | |
359 | for (;;) |
337 | for (;;) |
360 | { |
338 | { |
361 | // the archetype might have been referenced earlier |
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362 | // so try to find an existing stub archetype first |
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363 | archetype *at = find (f.get_str ()); |
339 | archetype *at = new archetype (f.get_str ()); |
364 | |
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365 | if (!at || !at->stub) |
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366 | at = new archetype (f.get_str ()); |
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367 | |
340 | |
368 | f.next (); |
341 | f.next (); |
369 | |
342 | |
370 | #if 0 |
343 | #if 0 |
371 | // implementing it here in the server does neither allow multiple inheritence |
344 | // implementing it here in the server does neither allow multiple inheritence |
… | |
… | |
382 | |
355 | |
383 | f.next (); |
356 | f.next (); |
384 | } |
357 | } |
385 | #endif |
358 | #endif |
386 | |
359 | |
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360 | loading_arch = at; // hack to tell parse_kv et al. to behave |
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361 | bool parse_ok = at->parse_kv (f); |
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362 | loading_arch = 0; |
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363 | |
387 | if (!at->parse_kv (f)) |
364 | if (!parse_ok) |
388 | goto fail; |
365 | goto fail; |
389 | |
366 | |
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367 | loading_arch = at; // hack to tell parse_kv et al. to behave |
390 | at->post_load_check (); |
368 | at->post_load_check (); |
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369 | loading_arch = 0; |
391 | |
370 | |
392 | parts.push_back (at); |
371 | parts.push_back (at); |
393 | |
372 | |
394 | if (f.kw != KW_more) |
373 | if (f.kw != KW_more) |
395 | break; |
374 | break; |
… | |
… | |
400 | { |
379 | { |
401 | f.parse_error ("more object"); |
380 | f.parse_error ("more object"); |
402 | goto fail; |
381 | goto fail; |
403 | } |
382 | } |
404 | } |
383 | } |
405 | |
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406 | loading_arch = false; |
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407 | |
384 | |
408 | { |
385 | { |
409 | auto (at, parts.begin ()); |
386 | auto (at, parts.begin ()); |
410 | |
387 | |
411 | archetype *new_head = parts.front (); |
388 | archetype *new_head = parts.front (); |
… | |
… | |
430 | &new_part->archname, &((archetype *)old_part->head_ ())->archname); |
407 | &new_part->archname, &((archetype *)old_part->head_ ())->archname); |
431 | goto fail; |
408 | goto fail; |
432 | } |
409 | } |
433 | } |
410 | } |
434 | |
411 | |
435 | // deactivate existing archetype |
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436 | for (archetype *at = old_head; at; at = (archetype *)at->more) |
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437 | at->unlink (); |
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438 | |
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439 | // assemble new chain |
412 | // assemble new chain |
440 | new_head->min_x = new_head->max_x = new_head->x; |
413 | new_head->min_x = new_head->max_x = new_head->x; |
441 | new_head->min_y = new_head->max_y = new_head->y; |
414 | new_head->min_y = new_head->max_y = new_head->y; |
442 | |
415 | |
443 | archetype *less = new_head; |
416 | archetype *less = new_head; |
444 | for (auto (p, parts.begin () + 1); p != parts.end (); ++p) |
417 | for (auto (p, parts.begin () + 1); p != parts.end (); ++p) |
445 | { |
418 | { |
446 | archetype *at = *p; |
419 | archetype *at = *p; |
447 | |
420 | |
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421 | // some flags get inherited from the head (probably a lot more) |
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422 | // doing it here doesn't feel too cozy, but it allows code |
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423 | // to ignore head checks for these flags, which saves time |
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424 | at->flag [FLAG_ALIVE] = new_head->flag [FLAG_ALIVE]; |
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425 | at->flag [FLAG_NO_PICK] = new_head->flag [FLAG_NO_PICK]; |
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426 | at->flag [FLAG_MONSTER] = new_head->flag [FLAG_MONSTER]; |
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427 | at->flag [FLAG_IS_FLOOR] = new_head->flag [FLAG_IS_FLOOR]; |
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428 | |
448 | if (at->x < new_head->min_x) new_head->min_x = at->x; |
429 | new_head->min_x = min (new_head->min_x, at->x); |
449 | if (at->y < new_head->min_y) new_head->min_y = at->y; |
430 | new_head->min_y = min (new_head->min_y, at->y); |
450 | if (at->x > new_head->max_x) new_head->max_x = at->x; |
431 | new_head->max_x = max (new_head->max_x, at->x); |
451 | if (at->y > new_head->max_y) new_head->max_y = at->y; |
432 | new_head->max_y = max (new_head->max_y, at->y); |
452 | |
433 | |
453 | at->head = new_head; |
434 | at->head = new_head; |
454 | less->more = at; |
435 | less->more = at; |
455 | less = at; |
436 | less = at; |
456 | } |
437 | } |
457 | |
438 | |
458 | // now activate it |
439 | postponed_arch.insert (postponed_arch.end (), parts.begin (), parts.end ()); |
459 | for (auto (p, parts.begin ()); p != parts.end (); ++p) |
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460 | { |
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461 | archetype *at = *p; |
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462 | at->stub = false; |
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463 | at->link (); |
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464 | } |
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465 | |
440 | |
466 | return new_head; |
441 | return new_head; |
467 | } |
442 | } |
468 | |
443 | |
469 | fail: |
444 | fail: |
470 | for (auto (p, parts.begin ()); p != parts.end (); ++p) |
445 | for (auto (p, parts.begin ()); p != parts.end (); ++p) |
471 | (*p)->destroy (true); |
446 | (*p)->destroy (true); |
472 | |
447 | |
473 | loading_arch = false; |
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474 | return 0; |
448 | return 0; |
475 | } |
449 | } |
476 | |
450 | |
477 | /* |
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478 | * Initialize global archtype pointers: |
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479 | */ |
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480 | void |
451 | void |
481 | init_archetype_pointers () |
452 | archetype::postpone_arch_ref (arch_ptr &ref, const_utf8_string other_arch) |
482 | { |
453 | { |
483 | ring_arch = archetype::find ("ring"); |
454 | ref = 0; |
484 | amulet_arch = archetype::find ("amulet"); |
455 | postponed_arch_ref.push_back (std::pair<arch_ptr *, shstr>(&ref, shstr (other_arch))); |
485 | staff_arch = archetype::find ("staff"); |
456 | } |
486 | crown_arch = archetype::find ("crown"); |
457 | |
487 | empty_archetype = archetype::find ("empty_archetype"); |
458 | void |
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459 | archetype::commit_load () |
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460 | { |
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461 | // unlink old archetypes and link in new ones */ |
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462 | for (auto (p, postponed_arch.begin ()); p != postponed_arch.end (); ++p) |
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463 | { |
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464 | archetype *at = *p; |
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465 | |
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466 | if (archetype *old = find (at->archname)) |
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467 | old->unlink (); |
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468 | |
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469 | allarch.push_back (at); |
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470 | |
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471 | at->link (); |
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472 | ++dirtycnt; |
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473 | } |
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474 | |
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475 | postponed_arch.clear (); |
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476 | |
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477 | // now resolve arch references |
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478 | for (auto (p, postponed_arch_ref.begin ()); p != postponed_arch_ref.end (); ++p) |
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479 | { |
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480 | arch_ptr *ap = p->first; |
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481 | archetype *at = find (p->second); |
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482 | |
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483 | if (!at) |
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484 | LOG (llevError, "unable to resolve postponed arch reference to '%s'", &p->second); |
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485 | |
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486 | *ap = at; |
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487 | } |
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488 | |
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489 | postponed_arch_ref.clear (); |
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490 | |
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491 | empty = find (shstr_empty_archetype); |
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492 | } |
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493 | |
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494 | void |
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495 | archetype::gc () |
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496 | { |
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497 | int cnt = max (1, min (allarch.size () / 128, dirtycnt)); |
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498 | dirtycnt = max (0, dirtycnt - cnt); |
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499 | |
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500 | do |
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501 | { |
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502 | static int idx; |
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503 | |
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504 | if (idx >= allarch.size ()) |
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505 | if (idx) |
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506 | idx = 0; |
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507 | else |
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508 | return; |
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509 | |
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510 | archetype *at = allarch [idx]; |
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511 | |
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512 | if (at->refcnt_cnt () > 1) // all arches have ONE refcount from their object |
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513 | ++idx; |
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514 | else |
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515 | { |
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516 | LOG (llevDebug, "garbage collect arch %s", at->debug_desc ()); |
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517 | assert (at->arch == at); // verify that refcnt == 1 is truely valid |
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518 | allarch.erase (idx); |
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519 | at->arch = 0; |
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520 | at->more = 0; |
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521 | at->destroy (); |
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522 | } |
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523 | } |
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524 | while (--cnt); |
488 | } |
525 | } |
489 | |
526 | |
490 | /* |
527 | /* |
491 | * Creates and returns a new object which is a copy of the given archetype. |
528 | * Creates and returns a new object which is a copy of the given archetype. |
492 | * This function returns NULL on failure. |
529 | * This function returns NULL on failure. |
… | |
… | |
503 | object *op = at->clone (); |
540 | object *op = at->clone (); |
504 | op->arch = at; |
541 | op->arch = at; |
505 | op->instantiate (); |
542 | op->instantiate (); |
506 | |
543 | |
507 | return op; |
544 | return op; |
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545 | } |
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546 | |
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547 | object * |
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548 | archetype::instance () |
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549 | { |
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550 | return arch_to_object (this); |
508 | } |
551 | } |
509 | |
552 | |
510 | /* |
553 | /* |
511 | * Creates an object. This function is called by get_archetype() |
554 | * Creates an object. This function is called by get_archetype() |
512 | * if it fails to find the appropriate archetype. |
555 | * if it fails to find the appropriate archetype. |