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Comparing deliantra/server/server/freezethaw.C (file contents):
Revision 1.2 by elmex, Sat Dec 30 14:34:10 2006 UTC vs.
Revision 1.49 by root, Wed Dec 5 19:03:27 2018 UTC

1/*****************************************************************************/
2/* CrossFire, A roguelike realtime multiplayer game */
3/*****************************************************************************/
4
5/* 1/*
6 * This code is placed under the GNU General Public Licence (GPL) 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
7 * 3 *
8 * Copyright (C) 2006 by Marc Lehmann <crossfire@schmorp.de> 4 * Copyright (©) 2017,2018 Marc Alexander Lehmann / the Deliantra team
9 * 5 * Copyright (©) 2006,2007,2008,2009,2010,2011,2012,2013,2014,2015,2016 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6 *
10 * This program is free software; you can redistribute it and/or modify 7 * Deliantra is free software: you can redistribute it and/or modify it under
11 * it under the terms of the GNU General Public License as published by 8 * the terms of the Affero GNU General Public License as published by the
12 * the Free Software Foundation; either version 2 of the License, or 9 * Free Software Foundation, either version 3 of the License, or (at your
13 * (at your option) any later version. 10 * option) any later version.
14 * 11 *
15 * This program is distributed in the hope that it will be useful, 12 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details. 15 * GNU General Public License for more details.
19 * 16 *
20 * You should have received a copy of the GNU General Public License 17 * You should have received a copy of the Affero GNU General Public License
21 * along with this program; if not, write to the Free Software 18 * and the GNU General Public License along with this program. If not, see
22 * Foundation, Inc. 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 19 * <http://www.gnu.org/licenses/>.
20 *
21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
24#include "global.h" // bug in cfperl.h, doesn't include interface_class stuff
25#include "logger.h" 25#include "logger.h"
26#include "cfperl.h" 26#include "cfperl.h"
27#include "kw_hash.h" 27#include "kw_hash.h"
28 28
29object_freezer::object_freezer () 29object_freezer::object_freezer ()
30: dynbuf (128 * 1024, 64 * 1024) 30: dynbuf_text (128 * 1024, 64 * 1024)
31{ 31{
32 av = newAV (); 32 av = newAV ();
33} 33}
34 34
35object_freezer::~object_freezer () 35object_freezer::~object_freezer ()
36{ 36{
37 SvREFCNT_dec (av); 37 SvREFCNT_dec (av);
38} 38}
39 39
40void
40void object_freezer::put (attachable *ext) 41object_freezer::put_ (attachable *ext)
41{ 42{
42 ext->optimise (); 43 ext->optimise ();
43 44
44 if (ext->self) 45 if (ext->self)
45 { 46 {
46 int idx = AvFILLp ((AV *)av) + 1; 47 int idx = AvFILLp ((AV *)av) + 1;
47 av_store (av, idx, newRV_inc ((SV *)ext->self)); 48 av_store (av, idx, newRV_inc ((SV *)ext->self));
48 49
49 add ((void *)"oid ", 4); 50 put (KW(oid), sint32(idx));
50 add ((sint32)idx);
51 add ('\n');
52 } 51 }
53} 52}
54 53
54bool
55bool object_freezer::save (const char *filename) 55object_freezer::save (const char *path)
56{ 56{
57 CALL_BEGIN (3); 57 CALL_BEGIN (3);
58 CALL_ARG_SV (newSVpv (filename, 0)); 58 CALL_ARG_SV (newSVpv (path, 0));
59 CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ()))); 59 CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ())));
60 CALL_ARG_SV (newRV_inc ((SV *)av)); 60 CALL_ARG_SV (newRV_inc ((SV *)av));
61 CALL_CALL ("cf::object_freezer_save", G_VOID | G_DISCARD); 61 CALL_CALL ("cf::object_freezer_save", G_VOID | G_DISCARD);
62 CALL_END; 62 CALL_END;
63}
64 63
64 return 1;
65}
66
67char *
65char *object_freezer::as_string () 68object_freezer::as_string ()
66{ 69{
67 CALL_BEGIN (2); 70 CALL_BEGIN (2);
68 CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ()))); 71 CALL_ARG_SV (newRV_noinc (newSVpvn ((char *)linearise (), size ())));
69 CALL_ARG_SV (newRV_inc ((SV *)av)); 72 CALL_ARG_SV (newRV_inc ((SV *)av));
70 CALL_CALL ("cf::object_freezer_as_string", G_SCALAR); 73 CALL_CALL ("cf::object_freezer_as_string", G_SCALAR);
71 74
72 STRLEN len;
73
74 char *res = count > 0 75 char *res = count > 0
75 ? strdup (SvPVx (POPs, len)) 76 ? strdup (SvPVX (POPs))
76 : strdup ("[fatal error]"); 77 : strdup ("[fatal error]");
77 78
78 CALL_END; 79 CALL_END;
79 80
80 return res; 81 return res;
81} 82}
82 83
84#if 0
85void
83int fprintf (object_freezer &freezer, const char *format, ...) 86fprintf (object_freezer &freezer, const char *format, ...)
84{ 87{
85 va_list ap; 88 va_list ap;
86 89
87 va_start (ap, format); 90 va_start (ap, format);
88 91
… …
92 freezer.alloc (len); 95 freezer.alloc (len);
93 96
94 va_end (ap); 97 va_end (ap);
95} 98}
96 99
100// XXX: function not returning an int
101void
97int fputs (const char *s, object_freezer &freezer) 102fputs (const char *s, object_freezer &freezer)
98{ 103{
99 freezer.add (s); 104 freezer.add (s);
100} 105}
106#endif
101 107
102static const char thawer_eof[] = "\n\n\n\0\0\0"; 108static const char thawer_eof[] = "\n\n\n\0\0\0";
103 109
104object_thawer::object_thawer (const char *filename) 110bool object_thawer::errors_are_fatal = true;
105{
106 static const char eof[] = "\n\n\n\0\0\0";
107
108 av = 0;
109 text = 0;
110 line = 0;
111
112 if (filename)
113 {
114 CALL_BEGIN (1);
115 CALL_ARG_SV (newSVpv (filename, 0));
116 CALL_CALL ("cf::object_thawer_load", G_ARRAY);
117
118 if (count == 2)
119 {
120 // second value - perl objects
121 {
122 SV *sv = POPs;
123 if (SvROK (sv))
124 av = (AV *)SvREFCNT_inc (SvRV (sv));
125 }
126
127 // first value - text part, pad with 3 zeroes
128 {
129 SV *sv = POPs;
130 STRLEN len;
131 char *sv_ = SvPVbyte (sv, len);
132 text = newSV (len + sizeof (eof));
133 SvCUR_set (text, len);
134 memcpy (SvPVX (text), sv_, len);
135 memcpy (SvEND (text), eof, sizeof (eof)); // just to be sure
136
137 line = SvPVX (text);
138 }
139 }
140
141 CALL_END;
142 }
143}
144 111
145object_thawer::object_thawer (const char *data, AV *perlav) 112object_thawer::object_thawer (const char *data, AV *perlav)
113: name (strdup ("(memory stream)"))
146{ 114{
115 init ("(memory stream)");
116
147 av = perlav; 117 av = perlav;
148 text = newSVpv (data, 0); 118 text = newSVpv (data, 0); sv_catpv (text, thawer_eof);
149 sv_catpv (text, thawer_eof);
150 line = SvPVbyte_nolen (text); 119 line = SvPVbyte_nolen (text);
120 next ();
151} 121}
152 122
123object_thawer::object_thawer (const_utf8_string path)
124{
125 init_from_file (path);
126}
127
128// convenience constructor
129object_thawer::object_thawer (const_utf8_string dir, const_utf8_string file)
130{
131 init_from_file (format ("%s/%s", dir, file));
132}
133
134void
135object_thawer::init (const_utf8_string path)
136{
137 name = strdup (path);
138 av = 0;
139 text = 0;
140 line = 0;
141 linenum = 0;
142
143 kw = KW_ERROR;
144 kw_str = 0;
145 value = 0;
146}
147
148void
149object_thawer::init_from_file (const_utf8_string path)
150{
151 init (path);
152
153 CALL_BEGIN (1);
154 CALL_ARG_SV (newSVpv (path, 0));
155 CALL_CALL ("cf::object_thawer_load", G_ARRAY);
156
157 if (count == 2)
158 {
159 // second value - perl objects
160 {
161 SV *sv = POPs;
162 if (SvROK (sv))
163 av = (AV *)SvREFCNT_inc (SvRV (sv));
164 }
165
166 // first value - text part, pad with 3 zeroes
167 {
168 SV *sv = POPs;
169 STRLEN len;
170 char *sv_ = SvPVbyte (sv, len);
171 text = newSV (len + sizeof (thawer_eof));
172 SvCUR_set (text, len + sizeof (thawer_eof));
173 memcpy (SvPVX (text), sv_, len);
174 memcpy (SvPVX (text) + len, thawer_eof, sizeof (thawer_eof));
175
176 line = SvPVX (text);
177 next ();
178 }
179 }
180
181 CALL_END;
182}
183
184void
153void object_thawer::get (attachable *obj, int oid) 185object_thawer::get (attachable *obj, int oid)
154{ 186{
155 if (!av || oid < 0) // this is actually an error of sorts 187 if (!av || oid < 0) // this is actually an error of sorts
156 return; 188 return;
157 189
158 SV **svp = av_fetch ((AV *)av, oid, 0); 190 SV **svp = av_fetch ((AV *)av, oid, 0);
159 191
160 if (!svp || !SvROK (*svp)) 192 if (!svp || !SvROK (*svp))
161 { 193 {
162 printf ("trying to thaw duplicate or never-issued oid %d, ignoring.\n", oid); 194 LOG (llevError, "trying to thaw duplicate or never-issued oid %d, ignoring.\n", oid);
163 return; 195 return;
164 } 196 }
165 197
166 if (!SvROK (*svp)) 198 if (!SvROK (*svp))
167 { 199 {
168 LOG (llevError, "deserialised perl object is not an RV"); 200 LOG (llevError, "deserialised perl object is not an RV\n");
169 return; 201 return;
170 } 202 }
171 203
172 HV *hv = (HV *)SvRV (*svp); 204 HV *hv = (HV *)SvRV (*svp);
173 205
174 if (SvTYPE (hv) != SVt_PVHV) 206 if (SvTYPE (hv) != SVt_PVHV)
175 { 207 {
176 LOG (llevError, "deserialised perl object is not a PVHV"); 208 LOG (llevError, "deserialised perl object is not a PVHV\n");
177 return; 209 return;
178 } 210 }
179 211
180 if (obj->self) 212 if (obj->self)
181 { 213 {
182 // the hard way(?) 214 // the hard way(?)
183 215
184 // the dirty blues: "just" swap the XPVHV's 216 CALL_BEGIN (2);
185 swap (SvANY (obj->self), SvANY (hv)); 217 CALL_ARG_SV (newRV_inc ((SV *)obj->self));
186 218 CALL_ARG_SV (newRV_inc ((SV *)hv));
187 // do not swap magic, though 219 PUTBACK;
188 swap (SvMAGIC (obj->self), SvMAGIC (hv)); 220 call_method ("thawer_merge", G_DISCARD | G_EVAL);
221 SPAGAIN;
222 CALL_END;
189 } 223 }
190 else 224 else
191 { 225 {
192 // the easy way(?) 226 // the easy way(?)
193 227
194 obj->self = hv; 228 obj->self = hv;
195 SvRV_set (*svp, &PL_sv_undef); 229 SvRV_set (*svp, &PL_sv_undef);
196 230
197 sv_magicext ((SV *)obj->self, 0, PERL_MAGIC_ext, &attachable::vtbl, (char *)obj, 0); 231 sv_magicext ((SV *)obj->self, 0, PERL_MAGIC_ext, &attachable::vtbl, (char *)obj, 0);
198
199 // borrow a refcount for the perl object
200 obj->flags |= attachable::F_BORROWED;
201 obj->refcnt_dec ();
202 } 232 }
203 233
204 obj->reattach (); 234 obj->reattach ();
205} 235}
206 236
207object_thawer::~object_thawer () 237object_thawer::~object_thawer ()
208{ 238{
209 if (text) SvREFCNT_dec (text); 239 if (text) SvREFCNT_dec (text);
210 if (av) SvREFCNT_dec (av); 240 if (av) SvREFCNT_dec (av);
211}
212 241
213char *fgets (char *s, int n, object_thawer &thawer) 242 resolve_delayed_derefs (false);
214{
215 char *p = thawer.line;
216 char *q = s;
217 243
244 free ((void *)name);
245}
246
247static void
248error_out ()
249{
250 if (object_thawer::errors_are_fatal)
251 {
252 LOG (llevError, "(parse errors at this time are fatal, exiting)");
253 exit (1);
254 }
255}
256
257void
258object_thawer::parse_warn (const char *msg) const
259{
260 LOG (llevWarn, "%s:%d, \"%s %s\": %s\n",
261 this->name, linenum,
262 kw_str ? kw_str : "<null>",
263 value ? value : "<null>",
264 msg);
265}
266
267bool
268object_thawer::parse_error (const char *type, const char *name, bool skip) const
269{
270 if (!type) type = "file section";
271 if (!name) name = "generic";
272
273 switch (kw)
274 {
275 case KW_EOF:
276 LOG (llevError, "%s:%d end of file while reading %s '%s', aborting load.\n",
277 this->name, linenum, type, name);
278 error_out ();
279 return false;
280
281 case KW_ERROR:
282 LOG (llevError, "%s:%d error while reading %s '%s', at '%s', aborting load.\n",
283 this->name, linenum,
284 type, name,
285 kw_str ? kw_str : "<file load>");
286 error_out ();
287 return false;
288
289 default:
290 LOG (llevError, "%s:%d unexpected line (%s %s) while reading %s '%s', %s.\n",
291 this->name, linenum,
292 kw_str ? kw_str : "<null>",
293 value ? value : "<null>",
294 type, name,
295 skip ? "skipping line" : "aborting load");
296 error_out ();
297 return skip;
298 }
299}
300
301void
302object_thawer::next ()
303{
218 if (!p) 304 if (!line)
305 {
306 kw = KW_ERROR;
219 return 0; 307 return;
220
221 while (--n)
222 { 308 }
309
310 for (;;)
311 {
312 char *p = line;
313
314 if (ecb_expect_false (*p <= ' '))
315 {
316 // skip whitespace (only some files need this)
317 while (*p == ' ' || *p == '\t')
318 p++;
319
320 line = p;
321 }
322
223 if (!*p) 323 if (!*p)
324 {
325 kw = KW_EOF;
224 break; 326 break;
225 327 }
226 *q++ = *p;
227
228 if (*p++ == '\n')
229 break;
230 }
231
232 *q = 0;
233 thawer.line = p;
234
235 return s == q ? 0 : s;
236}
237
238keyword object_thawer::get_kv ()
239{
240 if (!line)
241 return KW_EOF;
242
243 for (;;)
244 {
245 char *p = line;
246
247 if (!*p)
248 return KW_EOF;
249 328
250 // parse keyword 329 // parse keyword
251 while (*p > ' ') 330 while (*p > ' ')
252 p++; 331 p++;
253 332
254 int klen = p - line; 333 int klen = p - line;
255 334
335 value_nn = "";
336 value = 0;
337
256 if (*p++ != '\n') 338 if (*p++ != '\n')
257 { 339 {
258 // parse value 340 // parse value
259 while (*(unsigned char *)p <= ' ' && *p != '\n') // skip 0x01 .. 0x20 341 while (*(unsigned char *)p <= ' ' && *p != '\n')
260 ++p; 342 ++p;
261 343
262 last_value = p; 344 value_nn = value = p;
263 345
264 while (*p != '\n') 346 while (*p != '\n')
265 p++; 347 p++;
266 348
267 *p++ = 0; 349 *p++ = 0;
268 } 350 }
269 else
270 last_value = 0;
271 351
352 ++linenum;
272 line [klen] = 0; 353 line [klen] = 0;
273 keyword_idx *kw = kw_lex::match (line, klen); 354 keyword_idx *kw_idx = kw_lex::match (line, klen);
274 355
275 //printf ("KV %d<%s,%s>\n", kw ? kw->index : 0, line, last_value);//D 356 kw_str = line;
276
277 last_keyword = line;
278 line = p; 357 line = p;
279 358
280 if (kw) 359 if (kw_idx)
281 return kw->index; 360 {
361 kw = kw_idx->index;
362 break;
363 }
282 else if (!*last_keyword || *last_keyword == '#') 364 else if (!*kw_str || *kw_str == '#')
283 ; // empty/comment line 365 ; // empty/comment line
284 else 366 else
367 {
285 return KW_ERROR; 368 kw = KW_ERROR;
369 break;
370 }
371 }
372}
373
374bool
375object_thawer::next_line ()
376{
377 if (!line)
286 } 378 {
287} 379 kw = KW_ERROR;
380 return 0;
381 }
288 382
289void object_thawer::skip_kv (keyword kw) 383 for (;;)
384 {
385 char *p = line;
386
387 if (ecb_expect_false (*p <= ' '))
388 {
389 // skip whitespace (only some files need this)
390 while (*p == ' ' || *p == '\t')
391 p++;
392
393 line = p;
394 }
395
396 if (!*p)
397 {
398 kw = KW_EOF;
399 return 0;
400 }
401
402 kw = KW_value;
403 kw_str = p;
404 value_nn = p;
405 value = p;
406
407 // parse till newline
408 while (*p > '\n')
409 p++;
410
411 if (*p == '\n')
412 *p++ = 0;
413
414 ++linenum;
415
416 line = p;
417
418 if (*kw_str && *kw_str != '#')
419 break;
420
421 // empty/comment line -> skip it
422 }
423
424 return 1;
425}
426
427void
428object_thawer::skip ()
290{ 429{
291 shstr ml; 430 shstr ml;
292 431
293 switch (kw) 432 switch (kw)
294 { 433 {
295 case KW_msg: get_ml (KW_endmsg , ml); break; 434 case KW_msg: get_ml (KW_endmsg , ml); break;
296 case KW_lore: get_ml (KW_endlore , ml); break; 435 case KW_lore: get_ml (KW_endlore , ml); break;
297 case KW_maplore: get_ml (KW_endmaplore, ml); break; 436 case KW_maplore: get_ml (KW_endmaplore, ml); break;
437 default: break;
298 } 438 }
439
440 next ();
299} 441}
300 442
301void object_thawer::get (shstr &sh) const 443void
444object_thawer::skip_block ()
302{ 445{
303 if (last_value) 446 // must not stop at KW_ERROR, as those signify custom keys
304 sh = last_value; 447 while (kw != KW_EOF)
305 else
306 {
307 sh = "<value missing>";
308 LOG (llevError, "keyword requires value: <%.320s>\n", line);//TODO: add filename
309 } 448 {
310} 449 keyword w = kw;
450 skip ();
311 451
452 if (0 && (w == KW_map || w == KW_arch || w == KW_object || w == KW_region))
453 skip_block ();
454 else if (w == KW_end)
455 break;
456 }
457}
458
459void
312void object_thawer::get_ml (keyword kend, shstr &sh) 460object_thawer::get_ml (keyword kend, shstr &sh)
313{ 461{
314 char kw[128]; 462 char kw[128];
315 463
316 int klen = keyword_len [kend]; 464 int klen = keyword_len [kend];
317 465
318 kw [0] = '\n'; 466 kw [0] = '\n';
319 memcpy (kw + 1, keyword_str [kend], klen); 467 memcpy (kw + 1, keyword_str [kend], klen);
320 kw [klen + 1] = '\n'; 468 kw [klen + 1] = '\n';
321 kw [klen + 2] = 0; 469 kw [klen + 2] = 0;
322 470
471 ++linenum;
472
323 // first test for completely empty msg... "endXXX\n" 473 // first test for completely empty msg... "endXXX\n"
324 if (!strncmp (line, kw + 1, klen + 1)) 474 if (!strncmp (line, kw + 1, klen + 1))
325 { 475 {
326 sh = 0; 476 sh = 0;
327 477
… …
342 } 492 }
343 493
344 *end = 0; 494 *end = 0;
345 sh = line; 495 sh = line;
346 496
497 // count line numbers
498 while (line < end)
499 linenum += *line++ == '\n';
500
347 line = end + keyword_len [kend] + 1; 501 line += keyword_len [kend];
348 502
349 while (*line++ != '\n') 503 while (*line++ != '\n')
350 ; 504 ;
351 }
352}
353 505
506 ++linenum;
507 }
508}
509
510sint32
354sint32 object_thawer::get_sint32 () const 511object_thawer::get_sint32 () const
355{ 512{
356 char *p = last_value; 513 const char *p = value_nn;
357
358 if (!p)
359 return 0;
360 514
361 sint32 val = 0; 515 sint32 val = 0;
362 bool negate; 516 bool negate;
363 517
364 if (*p == '-') 518 if (*p == '-')
… …
377 while (*p); 531 while (*p);
378 532
379 return negate ? -val : val; 533 return negate ? -val : val;
380} 534}
381 535
382sint64 object_thawer::get_sint64 () const 536void
537object_thawer::delayed_deref (attachable *op, object_ptr &ptr, const char *ref)
383{ 538{
384 return last_value ? atoll (last_value) : 0; 539 op->refcnt_inc ();
540 delayed_ref r = { op, &ptr, ref ? strdup (ref) : 0 };
541 delrefs.push_back (r);
542 ptr = 0;
385} 543}
386 544
387double object_thawer::get_double () const 545void
546object_thawer::resolve_delayed_derefs (bool deref)
388{ 547{
389 return last_value ? atof (last_value) : 0; 548 while (!delrefs.empty ())
390} 549 {
550 delayed_ref r = delrefs.back ();
551 delrefs.pop_back ();
391 552
553 if (deref)
554 *r.ptr = object::deref (r.ref);
555
556 free ((void *)r.ref);
557 r.op->refcnt_dec ();
558 }
559}

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