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Comparing deliantra/server/server/freezethaw.C (file contents):
Revision 1.1 by root, Sat Dec 30 10:16:11 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 char *res = count > 0 75 char *res = count > 0
73 ? strdup (SvPVbyte_nolen (POPs)) 76 ? strdup (SvPVX (POPs))
74 : strdup ("[fatal error]"); 77 : strdup ("[fatal error]");
75 78
76 CALL_END; 79 CALL_END;
77 80
78 return res; 81 return res;
79} 82}
80 83
84#if 0
85void
81int fprintf (object_freezer &freezer, const char *format, ...) 86fprintf (object_freezer &freezer, const char *format, ...)
82{ 87{
83 va_list ap; 88 va_list ap;
84 89
85 va_start (ap, format); 90 va_start (ap, format);
86 91
… …
90 freezer.alloc (len); 95 freezer.alloc (len);
91 96
92 va_end (ap); 97 va_end (ap);
93} 98}
94 99
100// XXX: function not returning an int
101void
95int fputs (const char *s, object_freezer &freezer) 102fputs (const char *s, object_freezer &freezer)
96{ 103{
97 freezer.add (s); 104 freezer.add (s);
98} 105}
106#endif
99 107
100static const char thawer_eof[] = "\n\n\n\0\0\0"; 108static const char thawer_eof[] = "\n\n\n\0\0\0";
101 109
102object_thawer::object_thawer (const char *filename) 110bool object_thawer::errors_are_fatal = true;
103{
104 static const char eof[] = "\n\n\n\0\0\0";
105
106 av = 0;
107 text = 0;
108 line = 0;
109
110 if (filename)
111 {
112 CALL_BEGIN (1);
113 CALL_ARG_SV (newSVpv (filename, 0));
114 CALL_CALL ("cf::object_thawer_load", G_ARRAY);
115
116 if (count == 2)
117 {
118 // second value - perl objects
119 {
120 SV *sv = POPs;
121 if (SvROK (sv))
122 av = (AV *)SvREFCNT_inc (SvRV (sv));
123 }
124
125 // first value - text part, pad with 3 zeroes
126 {
127 SV *sv = POPs;
128 STRLEN len;
129 char *sv_ = SvPVbyte (sv, len);
130 text = newSV (len + sizeof (eof));
131 SvCUR_set (text, len);
132 memcpy (SvPVX (text), sv_, len);
133 memcpy (SvEND (text), eof, sizeof (eof)); // just to be sure
134
135 line = SvPVX (text);
136 }
137 }
138
139 CALL_END;
140 }
141}
142 111
143object_thawer::object_thawer (const char *data, AV *perlav) 112object_thawer::object_thawer (const char *data, AV *perlav)
113: name (strdup ("(memory stream)"))
144{ 114{
115 init ("(memory stream)");
116
145 av = perlav; 117 av = perlav;
146 text = newSVpv (data, 0); 118 text = newSVpv (data, 0); sv_catpv (text, thawer_eof);
147 sv_catpv (text, thawer_eof);
148 line = SvPVbyte_nolen (text); 119 line = SvPVbyte_nolen (text);
120 next ();
149} 121}
150 122
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
151void object_thawer::get (attachable *obj, int oid) 185object_thawer::get (attachable *obj, int oid)
152{ 186{
153 if (!av || oid < 0) // this is actually an error of sorts 187 if (!av || oid < 0) // this is actually an error of sorts
154 return; 188 return;
155 189
156 SV **svp = av_fetch ((AV *)av, oid, 0); 190 SV **svp = av_fetch ((AV *)av, oid, 0);
157 191
158 if (!svp || !SvROK (*svp)) 192 if (!svp || !SvROK (*svp))
159 { 193 {
160 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);
161 return; 195 return;
162 } 196 }
163 197
164 if (!SvROK (*svp)) 198 if (!SvROK (*svp))
165 { 199 {
166 LOG (llevError, "deserialised perl object is not an RV"); 200 LOG (llevError, "deserialised perl object is not an RV\n");
167 return; 201 return;
168 } 202 }
169 203
170 HV *hv = (HV *)SvRV (*svp); 204 HV *hv = (HV *)SvRV (*svp);
171 205
172 if (SvTYPE (hv) != SVt_PVHV) 206 if (SvTYPE (hv) != SVt_PVHV)
173 { 207 {
174 LOG (llevError, "deserialised perl object is not a PVHV"); 208 LOG (llevError, "deserialised perl object is not a PVHV\n");
175 return; 209 return;
176 } 210 }
177 211
178 if (obj->self) 212 if (obj->self)
179 { 213 {
180 // the hard way(?) 214 // the hard way(?)
181 215
182 // the dirty blues: "just" swap the XPVHV's 216 CALL_BEGIN (2);
183 swap (SvANY (obj->self), SvANY (hv)); 217 CALL_ARG_SV (newRV_inc ((SV *)obj->self));
184 218 CALL_ARG_SV (newRV_inc ((SV *)hv));
185 // do not swap magic, though 219 PUTBACK;
186 swap (SvMAGIC (obj->self), SvMAGIC (hv)); 220 call_method ("thawer_merge", G_DISCARD | G_EVAL);
221 SPAGAIN;
222 CALL_END;
187 } 223 }
188 else 224 else
189 { 225 {
190 // the easy way(?) 226 // the easy way(?)
191 227
192 obj->self = hv; 228 obj->self = hv;
193 SvRV_set (*svp, &PL_sv_undef); 229 SvRV_set (*svp, &PL_sv_undef);
194 230
195 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);
196
197 // borrow a refcount for the perl object
198 obj->flags |= attachable::F_BORROWED;
199 obj->refcnt_dec ();
200 } 232 }
201 233
202 obj->reattach (); 234 obj->reattach ();
203} 235}
204 236
205object_thawer::~object_thawer () 237object_thawer::~object_thawer ()
206{ 238{
207 if (text) SvREFCNT_dec (text); 239 if (text) SvREFCNT_dec (text);
208 if (av) SvREFCNT_dec (av); 240 if (av) SvREFCNT_dec (av);
209}
210 241
211char *fgets (char *s, int n, object_thawer &thawer) 242 resolve_delayed_derefs (false);
212{
213 char *p = thawer.line;
214 char *q = s;
215 243
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{
216 if (!p) 304 if (!line)
305 {
306 kw = KW_ERROR;
217 return 0; 307 return;
218
219 while (--n)
220 { 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
221 if (!*p) 323 if (!*p)
324 {
325 kw = KW_EOF;
222 break; 326 break;
223 327 }
224 *q++ = *p;
225
226 if (*p++ == '\n')
227 break;
228 }
229
230 *q = 0;
231 thawer.line = p;
232
233 return s == q ? 0 : s;
234}
235
236keyword object_thawer::get_kv ()
237{
238 if (!line)
239 return KW_EOF;
240
241 for (;;)
242 {
243 char *p = line;
244
245 if (!*p)
246 return KW_EOF;
247 328
248 // parse keyword 329 // parse keyword
249 while (*p > ' ') 330 while (*p > ' ')
250 p++; 331 p++;
251 332
252 int klen = p - line; 333 int klen = p - line;
253 334
335 value_nn = "";
336 value = 0;
337
254 if (*p++ != '\n') 338 if (*p++ != '\n')
255 { 339 {
256 // parse value 340 // parse value
257 while (*(unsigned char *)p <= ' ' && *p != '\n') // skip 0x01 .. 0x20 341 while (*(unsigned char *)p <= ' ' && *p != '\n')
258 ++p; 342 ++p;
259 343
260 last_value = p; 344 value_nn = value = p;
261 345
262 while (*p != '\n') 346 while (*p != '\n')
263 p++; 347 p++;
264 348
265 *p++ = 0; 349 *p++ = 0;
266 } 350 }
267 else
268 last_value = 0;
269 351
352 ++linenum;
270 line [klen] = 0; 353 line [klen] = 0;
271 keyword_idx *kw = kw_lex::match (line, klen); 354 keyword_idx *kw_idx = kw_lex::match (line, klen);
272 355
273 //printf ("KV %d<%s,%s>\n", kw ? kw->index : 0, line, last_value);//D 356 kw_str = line;
274
275 last_keyword = line;
276 line = p; 357 line = p;
277 358
278 if (kw) 359 if (kw_idx)
279 return kw->index; 360 {
361 kw = kw_idx->index;
362 break;
363 }
280 else if (!*last_keyword || *last_keyword == '#') 364 else if (!*kw_str || *kw_str == '#')
281 ; // empty/comment line 365 ; // empty/comment line
282 else 366 else
367 {
283 return KW_ERROR; 368 kw = KW_ERROR;
369 break;
370 }
371 }
372}
373
374bool
375object_thawer::next_line ()
376{
377 if (!line)
284 } 378 {
285} 379 kw = KW_ERROR;
380 return 0;
381 }
286 382
287void 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 ()
288{ 429{
289 shstr ml; 430 shstr ml;
290 431
291 switch (kw) 432 switch (kw)
292 { 433 {
293 case KW_msg: get_ml (KW_endmsg , ml); break; 434 case KW_msg: get_ml (KW_endmsg , ml); break;
294 case KW_lore: get_ml (KW_endlore , ml); break; 435 case KW_lore: get_ml (KW_endlore , ml); break;
295 case KW_maplore: get_ml (KW_endmaplore, ml); break; 436 case KW_maplore: get_ml (KW_endmaplore, ml); break;
437 default: break;
296 } 438 }
439
440 next ();
297} 441}
298 442
299void object_thawer::get (shstr &sh) const 443void
444object_thawer::skip_block ()
300{ 445{
301 if (last_value) 446 // must not stop at KW_ERROR, as those signify custom keys
302 sh = last_value; 447 while (kw != KW_EOF)
303 else
304 {
305 sh = "<value missing>";
306 LOG (llevError, "keyword requires value: <%.320s>\n", line);//TODO: add filename
307 } 448 {
308} 449 keyword w = kw;
450 skip ();
309 451
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
310void object_thawer::get_ml (keyword kend, shstr &sh) 460object_thawer::get_ml (keyword kend, shstr &sh)
311{ 461{
312 char kw[128]; 462 char kw[128];
313 463
314 int klen = keyword_len [kend]; 464 int klen = keyword_len [kend];
315 465
316 kw [0] = '\n'; 466 kw [0] = '\n';
317 memcpy (kw + 1, keyword_str [kend], klen); 467 memcpy (kw + 1, keyword_str [kend], klen);
318 kw [klen + 1] = '\n'; 468 kw [klen + 1] = '\n';
319 kw [klen + 2] = 0; 469 kw [klen + 2] = 0;
320 470
471 ++linenum;
472
321 // first test for completely empty msg... "endXXX\n" 473 // first test for completely empty msg... "endXXX\n"
322 if (!strncmp (line, kw + 1, klen + 1)) 474 if (!strncmp (line, kw + 1, klen + 1))
323 { 475 {
324 sh = 0; 476 sh = 0;
325 477
… …
340 } 492 }
341 493
342 *end = 0; 494 *end = 0;
343 sh = line; 495 sh = line;
344 496
497 // count line numbers
498 while (line < end)
499 linenum += *line++ == '\n';
500
345 line = end + keyword_len [kend] + 1; 501 line += keyword_len [kend];
346 502
347 while (*line++ != '\n') 503 while (*line++ != '\n')
348 ; 504 ;
349 }
350}
351 505
506 ++linenum;
507 }
508}
509
510sint32
352sint32 object_thawer::get_sint32 () const 511object_thawer::get_sint32 () const
353{ 512{
354 char *p = last_value; 513 const char *p = value_nn;
355
356 if (!p)
357 return 0;
358 514
359 sint32 val = 0; 515 sint32 val = 0;
360 bool negate; 516 bool negate;
361 517
362 if (*p == '-') 518 if (*p == '-')
… …
375 while (*p); 531 while (*p);
376 532
377 return negate ? -val : val; 533 return negate ? -val : val;
378} 534}
379 535
380sint64 object_thawer::get_sint64 () const 536void
537object_thawer::delayed_deref (attachable *op, object_ptr &ptr, const char *ref)
381{ 538{
382 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;
383} 543}
384 544
385double object_thawer::get_double () const 545void
546object_thawer::resolve_delayed_derefs (bool deref)
386{ 547{
387 return last_value ? atof (last_value) : 0; 548 while (!delrefs.empty ())
388} 549 {
550 delayed_ref r = delrefs.back ();
551 delrefs.pop_back ();
389 552
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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