ViewVC Help
View File | Revision Log | Show Annotations | Download File
/cvs/deliantra/server/common/utils.C
(Generate patch)

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.41 by root, Thu Jan 18 22:19:59 2007 UTC vs.
Revision 1.87 by sf-marcmagus, Sun Oct 11 01:35:53 2009 UTC

1/* 1/*
2 * CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 * 3 *
4 * Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 * Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 * Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 * 7 *
8 * This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by 9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 * (at your option) 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, 13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License 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 18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
21 * 20 *
22 * The authors can be reached via e-mail at <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
25/* 24/*
26 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
27 */ 26 */
32#include <sys/time.h> 31#include <sys/time.h>
33#include <time.h> 32#include <time.h>
34#include <signal.h> 33#include <signal.h>
35 34
36#include <global.h> 35#include <global.h>
37#include <funcpoint.h>
38#include <material.h> 36#include <material.h>
37#include <object.h>
38
39#include <sys/time.h>
40#include <sys/resource.h>
39 41
40#include <glib.h> 42#include <glib.h>
41 43
42rand_gen rndm (time (0)); 44refcnt_base::refcnt_t refcnt_dummy;
45ssize_t slice_alloc;
46rand_gen rndm, rmg_rndm;
43 47
48void
44tausworthe_random_generator::tausworthe_random_generator (uint32_t seed) 49tausworthe_random_generator::seed (uint32_t seed)
45{ 50{
46 state [0] = max ( 2, seed * 69069U); 51 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
47 state [1] = max ( 8, state [0] * 69069U); 52 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
48 state [2] = max ( 16, state [1] * 69069U); 53 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
49 state [3] = max (128, state [2] * 69069U); 54 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
50 55
51 for (int i = 11; --i; ) 56 for (int i = 11; --i; )
52 operator ()(); 57 next ();
53} 58}
54 59
55uint32_t 60uint32_t
56tausworthe_random_generator::next () 61tausworthe_random_generator::next ()
57{ 62{
60 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U); 65 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
61 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U); 66 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
62 67
63 return state [0] ^ state [1] ^ state [2] ^ state [3]; 68 return state [0] ^ state [1] ^ state [2] ^ state [3];
64} 69}
70
71template<class generator>
72uint32_t
73random_number_generator<generator>::get_range (uint32_t num)
74{
75 return (this->next () * (uint64_t)num) >> 32U;
76}
77
78// return a number within (min .. max)
79template<class generator>
80int
81random_number_generator<generator>::get_range (int r_min, int r_max)
82{
83 return r_min + get_range (max (r_max - r_min + 1, 0));
84}
85
86template struct random_number_generator<tausworthe_random_generator>;
87template struct random_number_generator<xorshift_random_generator>;
65 88
66/* 89/*
67 * The random functions here take luck into account when rolling random 90 * The random functions here take luck into account when rolling random
68 * dice or numbers. This function has less of an impact the larger the 91 * dice or numbers. This function has less of an impact the larger the
69 * difference becomes in the random numbers. IE, the effect is lessened 92 * difference becomes in the random numbers. IE, the effect is lessened
79 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 102 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
80 */ 103 */
81int 104int
82random_roll (int r_min, int r_max, const object *op, int goodbad) 105random_roll (int r_min, int r_max, const object *op, int goodbad)
83{ 106{
107 r_max = max (r_min, r_max);
108
84 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ 109 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
85
86 if (r_max < 1 || r_max < r_min)
87 {
88 LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
89 return r_min;
90 }
91 110
92 if (op->type == PLAYER) 111 if (op->type == PLAYER)
93 { 112 {
94 int luck = op->stats.luck; 113 int luck = op->stats.luck;
95 114
104 123
105/* 124/*
106 * This is a 64 bit version of random_roll above. This is needed 125 * This is a 64 bit version of random_roll above. This is needed
107 * for exp loss calculations for players changing religions. 126 * for exp loss calculations for players changing religions.
108 */ 127 */
109
110sint64 128sint64
111random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 129random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
112{ 130{
113 sint64 omin, diff, luck, ran; 131 sint64 omin = r_min;
114 int base; 132 sint64 range = max (0, r_max - r_min + 1);
133 int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
115 134
116 omin = min; 135 /*
117 diff = max - min + 1;
118 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
119
120 if (max < 1 || diff < 1)
121 {
122 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
123 return (min); /* avoids a float exception */
124 }
125
126 /* Don't know of a portable call to get 64 bit random values.
127 * So make a call to get two 32 bit random numbers, and just to 136 * Make a call to get two 32 bit unsigned random numbers, and just to
128 * a little byteshifting. Do make sure the first one is only 137 * a little bitshifting.
129 * 32 bit, so we don't get skewed results
130 */ 138 */
131 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 139 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
132 140
133 if (op->type != PLAYER) 141 if (op->type != PLAYER)
134 return ((ran % diff) + min); 142 return ((ran % range) + r_min);
135 143
136 luck = op->stats.luck; 144 int luck = op->stats.luck;
145
137 if (RANDOM () % base < MIN (10, abs (luck))) 146 if (rndm (base) < min (10, abs (luck)))
138 { 147 {
139 /* we have a winner */ 148 /* we have a winner */
140 ((luck > 0) ? (luck = 1) : (luck = -1)); 149 ((luck > 0) ? (luck = 1) : (luck = -1));
141 diff -= luck; 150 range -= luck;
142 if (diff < 1) 151 if (range < 1)
143 return (omin); /*check again */ 152 return (omin); /*check again */
153
144 ((goodbad) ? (min += luck) : (diff)); 154 ((goodbad) ? (r_min += luck) : (range));
145 155
146 return (MAX (omin, MIN (max, (ran % diff) + min))); 156 return (max (omin, min (r_max, (ran % range) + r_min)));
147 } 157 }
148 return ((ran % diff) + min); 158
159 return ran % range + r_min;
149} 160}
150 161
151/* 162/*
152 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 163 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
153 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 164 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
154 * Generally, op should be the player/caster/hitter requesting the roll, 165 * Generally, op should be the player/caster/hitter requesting the roll,
155 * not the recipient (ie, the poor slob getting hit). 166 * not the recipient (ie, the poor slob getting hit).
156 * The args are num D size (ie 4d6) [garbled 20010916] 167 * The args are num D size (ie 4d6) [garbled 20010916]
157 */ 168 */
158
159int 169int
160die_roll (int num, int size, const object *op, int goodbad) 170die_roll (int num, int size, const object *op, int goodbad)
161{ 171{
162 int min, diff, luck, total, i, gotlucky, base, ran; 172 int min, luck, total, i, gotlucky;
163 173
164 diff = size; 174 int diff = size;
165 min = 1; 175 min = 1;
166 luck = total = gotlucky = 0; 176 luck = total = gotlucky = 0;
167 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 177 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
178
168 if (size < 2 || diff < 1) 179 if (size < 2 || diff < 1)
169 { 180 {
170 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 181 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
171 return (num); /* avoids a float exception */ 182 return num; /* avoids a float exception */
172 } 183 }
173 184
174 if (op->type == PLAYER) 185 if (op->type == PLAYER)
175 luck = op->stats.luck; 186 luck = op->stats.luck;
176 187
177 for (i = 0; i < num; i++) 188 for (i = 0; i < num; i++)
178 { 189 {
179 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 190 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
180 { 191 {
181 /* we have a winner */ 192 /* we have a winner */
182 gotlucky++; 193 gotlucky++;
183 ((luck > 0) ? (luck = 1) : (luck = -1)); 194 ((luck > 0) ? (luck = 1) : (luck = -1));
184 diff -= luck; 195 diff -= luck;
185 if (diff < 1) 196 if (diff < 1)
186 return (num); /*check again */ 197 return (num); /*check again */
187 ((goodbad) ? (min += luck) : (diff)); 198 ((goodbad) ? (min += luck) : (diff));
188 ran = RANDOM ();
189 total += MAX (1, MIN (size, (ran % diff) + min)); 199 total += MAX (1, MIN (size, rndm (diff) + min));
190 } 200 }
191 else 201 else
192 {
193 total += RANDOM () % size + 1; 202 total += rndm (size) + 1;
194 }
195 } 203 }
204
196 return (total); 205 return total;
197}
198
199/* decay and destroy perishable items in a map */
200void
201maptile::decay_objects ()
202{
203 if (!spaces)
204 return;
205
206 for (mapspace *ms = spaces + size (); ms-- > spaces; )
207 for (object *above, *op = ms->bot; op; op = above)
208 {
209 above = op->above;
210
211 bool destroy = 0;
212
213 // do not decay anything above unique floor tiles (yet :)
214 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
215 break;
216
217 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
218 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
219 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
220 || QUERY_FLAG (op, FLAG_UNIQUE)
221 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
222 || QUERY_FLAG (op, FLAG_UNPAID)
223 || op->is_alive ())
224 ; // do not decay
225 else if (op->is_weapon ())
226 {
227 op->stats.dam--;
228 if (op->stats.dam < 0)
229 destroy = 1;
230 }
231 else if (op->is_armor ())
232 {
233 op->stats.ac--;
234 if (op->stats.ac < 0)
235 destroy = 1;
236 }
237 else if (op->type == FOOD)
238 {
239 op->stats.food -= rndm (5, 20);
240 if (op->stats.food < 0)
241 destroy = 1;
242 }
243 else
244 {
245 int mat = op->material;
246
247 if (mat & M_PAPER
248 || mat & M_LEATHER
249 || mat & M_WOOD
250 || mat & M_ORGANIC
251 || mat & M_CLOTH
252 || mat & M_LIQUID
253 || (mat & M_IRON && rndm (1, 5) == 1)
254 || (mat & M_GLASS && rndm (1, 2) == 1)
255 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
256 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
257 || (mat & M_ICE && temp > 32))
258 destroy = 1;
259 }
260
261 /* adjust overall chance below */
262 if (destroy && rndm (0, 1))
263 op->destroy ();
264 }
265} 206}
266 207
267/* convert materialname to materialtype_t */ 208/* convert materialname to materialtype_t */
268 209
269materialtype_t * 210materialtype_t *
270name_to_material (const char *name) 211name_to_material (const shstr_cmp name)
271{ 212{
272 materialtype_t *mt, *nmt; 213 for (materialtype_t *mt = materialt; mt; mt = mt->next)
214 if (name == mt->name)
215 return mt;
273 216
274 mt = NULL;
275 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
276 {
277 if (strcmp (name, nmt->name) == 0)
278 {
279 mt = nmt;
280 break;
281 }
282 }
283 return mt; 217 return 0;
284} 218}
285 219
286/* when doing transmutation of objects, we have to recheck the resistances, 220/* when doing transmutation of objects, we have to recheck the resistances,
287 * as some that did not apply previously, may apply now. 221 * as some that did not apply previously, may apply now.
288 */ 222 */
289
290void 223void
291transmute_materialname (object *op, const object *change) 224transmute_materialname (object *op, const object *change)
292{ 225{
293 materialtype_t *mt; 226 materialtype_t *mt;
294 int j; 227 int j;
295 228
296 if (op->materialname == NULL) 229 if (!op->materialname)
297 return; 230 return;
298 231
299 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 232 if (op->materialname != change->materialname)
300 return; 233 return;
301 234
302 if (!op->is_armor ()) 235 if (!op->is_armor ())
303 return; 236 return;
304 237
305 mt = name_to_material (op->materialname); 238 mt = name_to_material (op->materialname);
306 if (!mt) 239 if (!mt)
307 { 240 {
308 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 241 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
309 return; 242 return;
310 } 243 }
311 244
312 for (j = 0; j < NROFATTACKS; j++) 245 for (j = 0; j < NROFATTACKS; j++)
313 if (op->resist[j] == 0 && change->resist[j] != 0) 246 if (op->resist[j] == 0 && change->resist[j] != 0)
324void 257void
325set_materialname (object *op, int difficulty, materialtype_t *nmt) 258set_materialname (object *op, int difficulty, materialtype_t *nmt)
326{ 259{
327 materialtype_t *mt, *lmt; 260 materialtype_t *mt, *lmt;
328 261
329#ifdef NEW_MATERIAL_CODE
330 int j;
331#endif
332
333 if (op->materialname != NULL) 262 if (!op->materialname)
334 return; 263 return;
335 264
336 265 if (nmt)
337 266 lmt = nmt;
338 if (nmt == NULL) 267 else
339 { 268 {
340 lmt = NULL; 269 lmt = 0;
341#ifndef NEW_MATERIAL_CODE 270
342 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 271 for (mt = materialt; mt; mt = mt->next)
343 { 272 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
344 if (op->material & mt->material) 273 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
345 { 274 {
346 lmt = mt; 275 lmt = mt;
276 if (!(op->is_weapon () || op->is_armor ()))
347 break; 277 break;
348 } 278 }
349 }
350
351#else
352 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
353 {
354 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
355 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
356 {
357 lmt = mt;
358 if (!(op->is_weapon () || op->is_armor ()))
359 break;
360 }
361 }
362#endif
363 }
364 else
365 { 279 }
366 lmt = nmt; 280
281 if (lmt)
367 } 282 {
368
369 if (lmt != NULL)
370 {
371#ifndef NEW_MATERIAL_CODE
372 op->materialname = lmt->name;
373 return;
374#else
375
376 if (op->stats.dam && op->is_weapon ()) 283 if (op->stats.dam && op->is_weapon ())
377 { 284 {
378 op->stats.dam += lmt->damage; 285 op->stats.dam += lmt->damage;
379 if (op->stats.dam < 1) 286 if (op->stats.dam < 1)
380 op->stats.dam = 1; 287 op->stats.dam = 1;
381 } 288 }
289
382 if (op->stats.sp && op->type == BOW) 290 if (op->stats.sp && op->type == BOW)
383 op->stats.sp += lmt->sp; 291 op->stats.sp += lmt->sp;
384 if (op->stats.wc && op->is_weapon ()) 292 if (op->stats.wc && op->is_weapon ())
385 op->stats.wc += lmt->wc; 293 op->stats.wc += lmt->wc;
386 if (op->is_armor ()) 294 if (op->is_armor ())
387 { 295 {
388 if (op->stats.ac) 296 if (op->stats.ac)
389 op->stats.ac += lmt->ac; 297 op->stats.ac += lmt->ac;
298
390 for (j = 0; j < NROFATTACKS; j++) 299 for (int j = 0; j < NROFATTACKS; j++)
391 if (op->resist[j] != 0) 300 if (op->resist[j] != 0)
392 { 301 {
393 op->resist[j] += lmt->mod[j]; 302 op->resist[j] += lmt->mod[j];
394 if (op->resist[j] > 100) 303 if (op->resist[j] > 100)
395 op->resist[j] = 100; 304 op->resist[j] = 100;
396 if (op->resist[j] < -100) 305 if (op->resist[j] < -100)
397 op->resist[j] = -100; 306 op->resist[j] = -100;
398 } 307 }
399 } 308 }
309
400 op->materialname = add_string (lmt->name); 310 op->materialname = lmt->name;
401 /* dont make it unstackable if it doesn't need to be */ 311 /* dont make it unstackable if it doesn't need to be */
402 if (op->is_weapon () || op->is_armor ()) 312 if (op->is_weapon () || op->is_armor ())
403 { 313 {
404 op->weight = (op->weight * lmt->weight) / 100; 314 op->weight = (op->weight * lmt->weight) / 100;
405 op->value = (op->value * lmt->value) / 100; 315 op->value = (op->value * lmt->value) / 100;
406 } 316 }
407#endif
408 } 317 }
409} 318}
410 319
411/* 320/*
412 * Strip out the media tags from a String. 321 * Strip out the media tags from a String.
507 * a 'list' for the purposes here, is a string of items, seperated by commas, except 416 * a 'list' for the purposes here, is a string of items, seperated by commas, except
508 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 417 * for the last entry, which has an 'and' before it, and a full stop (period) after it.
509 * This function will also strip all trailing non alphanumeric characters. 418 * This function will also strip all trailing non alphanumeric characters.
510 * It does not insert an oxford comma. 419 * It does not insert an oxford comma.
511 */ 420 */
512
513void 421void
514make_list_like (char *input) 422make_list_like (char *input)
515{ 423{
516 char *p, tmp[MAX_BUF]; 424 char *p, tmp[MAX_BUF];
517 int i; 425 int i;
540 strcpy (input, tmp); 448 strcpy (input, tmp);
541 449
542 return; 450 return;
543} 451}
544 452
453/******************************************************************************/
454
455/* Checks a player-provided string which will become the msg property of
456 * an object for dangerous input.
457 */
458bool
459msg_is_safe (const char *msg)
460{
461 bool safe = true;
462
463 /* Trying to cheat by getting data into the object */
464 if (!strncmp (msg, "endmsg", strlen ("endmsg")) || strstr (msg, "\nendmsg"))
465 safe = false;
466
467 /* Trying to make the object talk, and potentially access arbitrary code */
468 if (object::msg_has_dialogue (msg))
469 safe = false;
470
471 return safe;
472}
473
545///////////////////////////////////////////////////////////////////////////// 474/////////////////////////////////////////////////////////////////////////////
546 475
547void 476void
548fork_abort (const char *msg) 477fork_abort (const char *msg)
549{ 478{
550 if (!fork ()) 479 if (!fork ())
551 { 480 {
481 signal (SIGINT , SIG_IGN);
482 signal (SIGTERM, SIG_IGN);
552 signal (SIGABRT, SIG_DFL); 483 signal (SIGABRT, SIG_IGN);
484
485 signal (SIGSEGV, SIG_DFL);
486 signal (SIGBUS , SIG_DFL);
487 signal (SIGILL , SIG_DFL);
488 signal (SIGTRAP, SIG_DFL);
489
490 // try to put corefiles into a subdirectory, if existing, to allow
491 // an administrator to reduce the I/O load.
492 chdir ("cores");
493
494 // try to detach us from as many external dependencies as possible
495 // as coredumping can take time by closing all fd's.
496 {
497 struct rlimit lim;
498
499 if (getrlimit (RLIMIT_NOFILE, &lim))
500 lim.rlim_cur = 1024;
501
502 for (int i = 0; i < lim.rlim_cur; ++i)
503 close (i);
504 }
505
506 {
507 sigset_t empty;
508 sigemptyset (&empty);
509 sigprocmask (SIG_SETMASK, &empty, 0);
510 }
511
512 // try to coredump with SIGTRAP
513 kill (getpid (), SIGTRAP);
553 abort (); 514 abort ();
554 } 515 }
555 516
556 LOG (llevError, "fork abort: %s\n", msg); 517 LOG (llevError, "fork abort: %s\n", msg);
557} 518}
561 void *ptr = g_slice_alloc (n); 522 void *ptr = g_slice_alloc (n);
562 523
563 if (!ptr) 524 if (!ptr)
564 throw std::bad_alloc (); 525 throw std::bad_alloc ();
565 526
527 slice_alloc += n;
566 return ptr; 528 return ptr;
567} 529}
568 530
569void *salloc_ (int n, void *src) throw (std::bad_alloc) 531void *salloc_ (int n, void *src) throw (std::bad_alloc)
570{ 532{
576 memset (ptr, 0, n); 538 memset (ptr, 0, n);
577 539
578 return ptr; 540 return ptr;
579} 541}
580 542
543/******************************************************************************/
544
545#if DEBUG_SALLOC
546
547#define MAGIC 0xa1b2c35543deadLL
548
549void *g_slice_alloc (unsigned long size)
550{
551 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
552 *p++ = size ^ MAGIC;
553 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
554 return (void *)p;
555}
556
557void *g_slice_alloc0 (unsigned long size)
558{
559 return memset (g_slice_alloc (size), 0, size);
560}
561
562void g_slice_free1 (unsigned long size, void *ptr)
563{
564 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
565 if (expect_true (ptr))
566 {
567 unsigned long *p = (unsigned long *)ptr;
568 unsigned long s = *--p ^ MAGIC;
569
570 if (size != (unsigned long)(*p ^ MAGIC))
571 {
572 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
573 abort ();
574 }
575
576 *p = MAGIC;
577
578 (g_slice_free1)(s + sizeof (unsigned long), p);
579 }
580}
581
582#endif
583
584/******************************************************************************/
585
586int
581void assign (char *dst, const char *src, int maxlen) 587assign (char *dst, const char *src, int maxsize)
582{ 588{
583 if (!src) 589 if (!src)
584 src = ""; 590 src = "";
585 591
586 int len = strlen (src); 592 int len = strlen (src);
587 593
588 if (len >= maxlen - 1) 594 if (len >= maxsize)
589 { 595 {
590 if (maxlen <= 4) 596 if (maxsize <= 4)
591 { 597 {
592 memset (dst, '.', maxlen - 1); 598 memset (dst, '.', maxsize - 2);
593 dst [maxlen - 1] = 0; 599 dst [maxsize - 1] = 0;
594 } 600 }
595 else 601 else
596 { 602 {
597 memcpy (dst, src, maxlen - 4); 603 memcpy (dst, src, maxsize - 4);
598 memcpy (dst + maxlen - 4, "...", 4); 604 memcpy (dst + maxsize - 4, "...", 4);
599 } 605 }
606
607 len = maxsize;
600 } 608 }
601 else 609 else
602 memcpy (dst, src, len + 1); 610 memcpy (dst, src, ++len);
611
612 return len;
613}
614
615const char *
616format (const char *format, ...)
617{
618 static dynbuf_text buf;
619
620 buf.clear ();
621
622 va_list ap;
623 va_start (ap, format);
624 buf.vprintf (format, ap);
625 va_end (ap);
626
627 return buf;
603} 628}
604 629
605tstamp now () 630tstamp now ()
606{ 631{
607 struct timeval tv; 632 struct timeval tv;
618 643
619 int diff = (b - a) & 7; 644 int diff = (b - a) & 7;
620 return diff <= 1 || diff >= 7; 645 return diff <= 1 || diff >= 7;
621} 646}
622 647
648/* crc32 0xdebb20e3 table and supplementary functions. */
649extern const uint32_t crc_32_tab[256] =
650{
651 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
652 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
653 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
654 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
655 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
656 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
657 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
658 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
659 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
660 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
661 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
662 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
663 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
664 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
665 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
666 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
667 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
668 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
669 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
670 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
671 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
672 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
673 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
674 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
675 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
676 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
677 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
678 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
679 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
680 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
681 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
682 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
683 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
684 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
685 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
686 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
687 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
688 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
689 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
690 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
691 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
692 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
693 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
694 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
695 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
696 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
697 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
698 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
699 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
700 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
701 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
702 0x2d02ef8dL
703};
704
705void thread::start (void *(*start_routine)(void *), void *arg)
706{
707 pthread_attr_t attr;
708
709 pthread_attr_init (&attr);
710 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
711 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
712 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
713#ifdef PTHREAD_SCOPE_PROCESS
714 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
715#endif
716
717 sigset_t fullsigset, oldsigset;
718 sigfillset (&fullsigset);
719
720 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
721
722 if (pthread_create (&id, &attr, start_routine, arg))
723 cleanup ("unable to create a new thread");
724
725 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
726}
727

Diff Legend

Removed lines
+ Added lines
< Changed lines
> Changed lines