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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.42 by root, Fri Jan 19 15:15:49 2007 UTC vs.
Revision 1.77 by root, Sun May 4 14:12:37 2008 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>
39 37
40#include <glib.h> 38#include <glib.h>
41 39
42rand_gen rndm; 40refcnt_base::refcnt_t refcnt_dummy;
41ssize_t slice_alloc;
42rand_gen rndm, rmg_rndm;
43 43
44void 44void
45tausworthe_random_generator::seed (uint32_t seed) 45tausworthe_random_generator::seed (uint32_t seed)
46{ 46{
47 state [0] = max ( 2, seed * 69069U); 47 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
48 state [1] = max ( 8, state [0] * 69069U); 48 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
49 state [2] = max ( 16, state [1] * 69069U); 49 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
50 state [3] = max (128, state [2] * 69069U); 50 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
51 51
52 for (int i = 11; --i; ) 52 for (int i = 11; --i; )
53 operator ()(); 53 operator ()();
54} 54}
55 55
63 63
64 return state [0] ^ state [1] ^ state [2] ^ state [3]; 64 return state [0] ^ state [1] ^ state [2] ^ state [3];
65} 65}
66 66
67uint32_t 67uint32_t
68tausworthe_random_generator::get_range (uint32_t r_max) 68tausworthe_random_generator::get_range (uint32_t num)
69{ 69{
70 return next () % r_max; 70 return (next () * (uint64_t)num) >> 32U;
71} 71}
72 72
73// return a number within (min .. max) 73// return a number within (min .. max)
74int 74int
75tausworthe_random_generator::get_range (int r_min, int r_max) 75tausworthe_random_generator::get_range (int r_min, int r_max)
76{ 76{
77 return r_min + (*this) (max (r_max - r_min + 1, 1)); 77 return r_min + get_range (max (r_max - r_min + 1, 0));
78} 78}
79 79
80/* 80/*
81 * The random functions here take luck into account when rolling random 81 * The random functions here take luck into account when rolling random
82 * dice or numbers. This function has less of an impact the larger the 82 * dice or numbers. This function has less of an impact the larger the
95int 95int
96random_roll (int r_min, int r_max, const object *op, int goodbad) 96random_roll (int r_min, int r_max, const object *op, int goodbad)
97{ 97{
98 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ 98 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
99 99
100 if (r_max < 1 || r_max < r_min) 100 if (r_max < r_min)
101 { 101 {
102 LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max); 102 LOG (llevError | logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
103 return r_min; 103 return r_min;
104 } 104 }
105 105
106 if (op->type == PLAYER) 106 if (op->type == PLAYER)
107 { 107 {
118 118
119/* 119/*
120 * This is a 64 bit version of random_roll above. This is needed 120 * This is a 64 bit version of random_roll above. This is needed
121 * for exp loss calculations for players changing religions. 121 * for exp loss calculations for players changing religions.
122 */ 122 */
123
124sint64 123sint64
125random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 124random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
126{ 125{
127 sint64 omin, diff, luck, ran;
128 int base;
129
130 omin = min; 126 sint64 omin = min;
131 diff = max - min + 1; 127 sint64 diff = max - min + 1;
132 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 128 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
133 129
134 if (max < 1 || diff < 1) 130 if (diff < 0)
135 { 131 {
136 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max); 132 LOG (llevError | logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
137 return (min); /* avoids a float exception */ 133 return (min); /* avoids a float exception */
138 } 134 }
139 135
140 /* Don't know of a portable call to get 64 bit random values. 136 /*
141 * So make a call to get two 32 bit random numbers, and just to 137 * Make a call to get two 32 bit unsigned random numbers, and just to
142 * a little byteshifting. Do make sure the first one is only 138 * a little bitshifting.
143 * 32 bit, so we don't get skewed results
144 */ 139 */
145 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 140 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
146 141
147 if (op->type != PLAYER) 142 if (op->type != PLAYER)
148 return ((ran % diff) + min); 143 return ((ran % diff) + min);
149 144
150 luck = op->stats.luck; 145 int luck = op->stats.luck;
146
151 if (RANDOM () % base < MIN (10, abs (luck))) 147 if (rndm (base) < MIN (10, abs (luck)))
152 { 148 {
153 /* we have a winner */ 149 /* we have a winner */
154 ((luck > 0) ? (luck = 1) : (luck = -1)); 150 ((luck > 0) ? (luck = 1) : (luck = -1));
155 diff -= luck; 151 diff -= luck;
156 if (diff < 1) 152 if (diff < 1)
157 return (omin); /*check again */ 153 return (omin); /*check again */
154
158 ((goodbad) ? (min += luck) : (diff)); 155 ((goodbad) ? (min += luck) : (diff));
159 156
160 return (MAX (omin, MIN (max, (ran % diff) + min))); 157 return (MAX (omin, MIN (max, (ran % diff) + min)));
161 } 158 }
159
162 return ((ran % diff) + min); 160 return ran % diff + min;
163} 161}
164 162
165/* 163/*
166 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 164 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
167 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 165 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
168 * Generally, op should be the player/caster/hitter requesting the roll, 166 * Generally, op should be the player/caster/hitter requesting the roll,
169 * not the recipient (ie, the poor slob getting hit). 167 * not the recipient (ie, the poor slob getting hit).
170 * The args are num D size (ie 4d6) [garbled 20010916] 168 * The args are num D size (ie 4d6) [garbled 20010916]
171 */ 169 */
172
173int 170int
174die_roll (int num, int size, const object *op, int goodbad) 171die_roll (int num, int size, const object *op, int goodbad)
175{ 172{
176 int min, diff, luck, total, i, gotlucky, base, ran; 173 int min, luck, total, i, gotlucky;
177 174
178 diff = size; 175 int diff = size;
179 min = 1; 176 min = 1;
180 luck = total = gotlucky = 0; 177 luck = total = gotlucky = 0;
181 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 178 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
179
182 if (size < 2 || diff < 1) 180 if (size < 2 || diff < 1)
183 { 181 {
184 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 182 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
185 return (num); /* avoids a float exception */ 183 return num; /* avoids a float exception */
186 } 184 }
187 185
188 if (op->type == PLAYER) 186 if (op->type == PLAYER)
189 luck = op->stats.luck; 187 luck = op->stats.luck;
190 188
191 for (i = 0; i < num; i++) 189 for (i = 0; i < num; i++)
192 { 190 {
193 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 191 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
194 { 192 {
195 /* we have a winner */ 193 /* we have a winner */
196 gotlucky++; 194 gotlucky++;
197 ((luck > 0) ? (luck = 1) : (luck = -1)); 195 ((luck > 0) ? (luck = 1) : (luck = -1));
198 diff -= luck; 196 diff -= luck;
199 if (diff < 1) 197 if (diff < 1)
200 return (num); /*check again */ 198 return (num); /*check again */
201 ((goodbad) ? (min += luck) : (diff)); 199 ((goodbad) ? (min += luck) : (diff));
202 ran = RANDOM ();
203 total += MAX (1, MIN (size, (ran % diff) + min)); 200 total += MAX (1, MIN (size, rndm (diff) + min));
204 } 201 }
205 else 202 else
206 {
207 total += RANDOM () % size + 1; 203 total += rndm (size) + 1;
208 }
209 } 204 }
205
210 return (total); 206 return total;
211}
212
213/* decay and destroy perishable items in a map */
214void
215maptile::decay_objects ()
216{
217 if (!spaces)
218 return;
219
220 for (mapspace *ms = spaces + size (); ms-- > spaces; )
221 for (object *above, *op = ms->bot; op; op = above)
222 {
223 above = op->above;
224
225 bool destroy = 0;
226
227 // do not decay anything above unique floor tiles (yet :)
228 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
229 break;
230
231 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
232 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
233 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
234 || QUERY_FLAG (op, FLAG_UNIQUE)
235 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
236 || QUERY_FLAG (op, FLAG_UNPAID)
237 || op->is_alive ())
238 ; // do not decay
239 else if (op->is_weapon ())
240 {
241 op->stats.dam--;
242 if (op->stats.dam < 0)
243 destroy = 1;
244 }
245 else if (op->is_armor ())
246 {
247 op->stats.ac--;
248 if (op->stats.ac < 0)
249 destroy = 1;
250 }
251 else if (op->type == FOOD)
252 {
253 op->stats.food -= rndm (5, 20);
254 if (op->stats.food < 0)
255 destroy = 1;
256 }
257 else
258 {
259 int mat = op->material;
260
261 if (mat & M_PAPER
262 || mat & M_LEATHER
263 || mat & M_WOOD
264 || mat & M_ORGANIC
265 || mat & M_CLOTH
266 || mat & M_LIQUID
267 || (mat & M_IRON && rndm (1, 5) == 1)
268 || (mat & M_GLASS && rndm (1, 2) == 1)
269 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
270 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
271 || (mat & M_ICE && temp > 32))
272 destroy = 1;
273 }
274
275 /* adjust overall chance below */
276 if (destroy && rndm (0, 1))
277 op->destroy ();
278 }
279} 207}
280 208
281/* convert materialname to materialtype_t */ 209/* convert materialname to materialtype_t */
282 210
283materialtype_t * 211materialtype_t *
284name_to_material (const char *name) 212name_to_material (const shstr &name)
285{ 213{
286 materialtype_t *mt, *nmt; 214 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
215 if (name == mt->name)
216 return mt;
287 217
288 mt = NULL;
289 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
290 {
291 if (strcmp (name, nmt->name) == 0)
292 {
293 mt = nmt;
294 break;
295 }
296 }
297 return mt; 218 return 0;
298} 219}
299 220
300/* when doing transmutation of objects, we have to recheck the resistances, 221/* when doing transmutation of objects, we have to recheck the resistances,
301 * as some that did not apply previously, may apply now. 222 * as some that did not apply previously, may apply now.
302 */ 223 */
303
304void 224void
305transmute_materialname (object *op, const object *change) 225transmute_materialname (object *op, const object *change)
306{ 226{
307 materialtype_t *mt; 227 materialtype_t *mt;
308 int j; 228 int j;
317 return; 237 return;
318 238
319 mt = name_to_material (op->materialname); 239 mt = name_to_material (op->materialname);
320 if (!mt) 240 if (!mt)
321 { 241 {
322 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 242 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
323 return; 243 return;
324 } 244 }
325 245
326 for (j = 0; j < NROFATTACKS; j++) 246 for (j = 0; j < NROFATTACKS; j++)
327 if (op->resist[j] == 0 && change->resist[j] != 0) 247 if (op->resist[j] == 0 && change->resist[j] != 0)
338void 258void
339set_materialname (object *op, int difficulty, materialtype_t *nmt) 259set_materialname (object *op, int difficulty, materialtype_t *nmt)
340{ 260{
341 materialtype_t *mt, *lmt; 261 materialtype_t *mt, *lmt;
342 262
343#ifdef NEW_MATERIAL_CODE
344 int j;
345#endif
346
347 if (op->materialname != NULL) 263 if (op->materialname != NULL)
348 return; 264 return;
349 265
350
351
352 if (nmt == NULL) 266 if (nmt == NULL)
353 { 267 {
354 lmt = NULL; 268 lmt = NULL;
355#ifndef NEW_MATERIAL_CODE 269
356 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 270 for (mt = materialt; mt && mt->next; mt = mt->next)
357 { 271 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
358 if (op->material & mt->material) 272 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
359 { 273 {
360 lmt = mt; 274 lmt = mt;
275 if (!(op->is_weapon () || op->is_armor ()))
361 break; 276 break;
362 } 277 }
363 }
364
365#else
366 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
367 {
368 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
369 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
370 {
371 lmt = mt;
372 if (!(op->is_weapon () || op->is_armor ()))
373 break;
374 }
375 }
376#endif
377 } 278 }
378 else 279 else
379 {
380 lmt = nmt; 280 lmt = nmt;
381 }
382 281
383 if (lmt != NULL) 282 if (lmt != NULL)
384 { 283 {
385#ifndef NEW_MATERIAL_CODE
386 op->materialname = lmt->name;
387 return;
388#else
389
390 if (op->stats.dam && op->is_weapon ()) 284 if (op->stats.dam && op->is_weapon ())
391 { 285 {
392 op->stats.dam += lmt->damage; 286 op->stats.dam += lmt->damage;
393 if (op->stats.dam < 1) 287 if (op->stats.dam < 1)
394 op->stats.dam = 1; 288 op->stats.dam = 1;
395 } 289 }
290
396 if (op->stats.sp && op->type == BOW) 291 if (op->stats.sp && op->type == BOW)
397 op->stats.sp += lmt->sp; 292 op->stats.sp += lmt->sp;
398 if (op->stats.wc && op->is_weapon ()) 293 if (op->stats.wc && op->is_weapon ())
399 op->stats.wc += lmt->wc; 294 op->stats.wc += lmt->wc;
400 if (op->is_armor ()) 295 if (op->is_armor ())
401 { 296 {
402 if (op->stats.ac) 297 if (op->stats.ac)
403 op->stats.ac += lmt->ac; 298 op->stats.ac += lmt->ac;
299
404 for (j = 0; j < NROFATTACKS; j++) 300 for (int j = 0; j < NROFATTACKS; j++)
405 if (op->resist[j] != 0) 301 if (op->resist[j] != 0)
406 { 302 {
407 op->resist[j] += lmt->mod[j]; 303 op->resist[j] += lmt->mod[j];
408 if (op->resist[j] > 100) 304 if (op->resist[j] > 100)
409 op->resist[j] = 100; 305 op->resist[j] = 100;
410 if (op->resist[j] < -100) 306 if (op->resist[j] < -100)
411 op->resist[j] = -100; 307 op->resist[j] = -100;
412 } 308 }
413 } 309 }
310
414 op->materialname = add_string (lmt->name); 311 op->materialname = lmt->name;
415 /* dont make it unstackable if it doesn't need to be */ 312 /* dont make it unstackable if it doesn't need to be */
416 if (op->is_weapon () || op->is_armor ()) 313 if (op->is_weapon () || op->is_armor ())
417 { 314 {
418 op->weight = (op->weight * lmt->weight) / 100; 315 op->weight = (op->weight * lmt->weight) / 100;
419 op->value = (op->value * lmt->value) / 100; 316 op->value = (op->value * lmt->value) / 100;
420 } 317 }
421#endif
422 } 318 }
423} 319}
424 320
425/* 321/*
426 * Strip out the media tags from a String. 322 * Strip out the media tags from a String.
521 * a 'list' for the purposes here, is a string of items, seperated by commas, except 417 * a 'list' for the purposes here, is a string of items, seperated by commas, except
522 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 418 * for the last entry, which has an 'and' before it, and a full stop (period) after it.
523 * This function will also strip all trailing non alphanumeric characters. 419 * This function will also strip all trailing non alphanumeric characters.
524 * It does not insert an oxford comma. 420 * It does not insert an oxford comma.
525 */ 421 */
526
527void 422void
528make_list_like (char *input) 423make_list_like (char *input)
529{ 424{
530 char *p, tmp[MAX_BUF]; 425 char *p, tmp[MAX_BUF];
531 int i; 426 int i;
562fork_abort (const char *msg) 457fork_abort (const char *msg)
563{ 458{
564 if (!fork ()) 459 if (!fork ())
565 { 460 {
566 signal (SIGABRT, SIG_DFL); 461 signal (SIGABRT, SIG_DFL);
462 // try to put corefiles into a subdirectory, if existing, to allow
463 // an administrator to reduce the I/O load.
464 chdir ("cores");
567 abort (); 465 abort ();
568 } 466 }
569 467
570 LOG (llevError, "fork abort: %s\n", msg); 468 LOG (llevError, "fork abort: %s\n", msg);
571} 469}
575 void *ptr = g_slice_alloc (n); 473 void *ptr = g_slice_alloc (n);
576 474
577 if (!ptr) 475 if (!ptr)
578 throw std::bad_alloc (); 476 throw std::bad_alloc ();
579 477
478 slice_alloc += n;
580 return ptr; 479 return ptr;
581} 480}
582 481
583void *salloc_ (int n, void *src) throw (std::bad_alloc) 482void *salloc_ (int n, void *src) throw (std::bad_alloc)
584{ 483{
590 memset (ptr, 0, n); 489 memset (ptr, 0, n);
591 490
592 return ptr; 491 return ptr;
593} 492}
594 493
494/******************************************************************************/
495
496#if DEBUG_SALLOC
497
498#define MAGIC 0xa1b2c35543deadLL
499
500void *g_slice_alloc (unsigned long size)
501{
502 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
503 *p++ = size ^ MAGIC;
504 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
505 return (void *)p;
506}
507
508void *g_slice_alloc0 (unsigned long size)
509{
510 return memset (g_slice_alloc (size), 0, size);
511}
512
513void g_slice_free1 (unsigned long size, void *ptr)
514{
515 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
516 if (expect_true (ptr))
517 {
518 unsigned long *p = (unsigned long *)ptr;
519 unsigned long s = *--p ^ MAGIC;
520
521 if (size != (unsigned long)(*p ^ MAGIC))
522 {
523 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
524 abort ();
525 }
526
527 *p = MAGIC;
528
529 (g_slice_free1)(s + sizeof (unsigned long), p);
530 }
531}
532
533#endif
534
535/******************************************************************************/
536
595void assign (char *dst, const char *src, int maxlen) 537void assign (char *dst, const char *src, int maxlen)
596{ 538{
597 if (!src) 539 if (!src)
598 src = ""; 540 src = "";
599 541
614 } 556 }
615 else 557 else
616 memcpy (dst, src, len + 1); 558 memcpy (dst, src, len + 1);
617} 559}
618 560
561const char *
562format (const char *format, ...)
563{
564 static dynbuf_text buf;
565
566 buf.clear ();
567
568 va_list ap;
569 va_start (ap, format);
570 buf.vprintf (format, ap);
571 va_end (ap);
572
573 return buf;
574}
575
619tstamp now () 576tstamp now ()
620{ 577{
621 struct timeval tv; 578 struct timeval tv;
622 579
623 gettimeofday (&tv, 0); 580 gettimeofday (&tv, 0);
632 589
633 int diff = (b - a) & 7; 590 int diff = (b - a) & 7;
634 return diff <= 1 || diff >= 7; 591 return diff <= 1 || diff >= 7;
635} 592}
636 593
594/* crc32 0xdebb20e3 table and supplementary functions. */
595extern const uint32_t crc_32_tab[256] =
596{
597 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
598 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
599 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
600 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
601 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
602 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
603 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
604 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
605 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
606 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
607 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
608 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
609 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
610 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
611 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
612 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
613 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
614 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
615 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
616 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
617 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
618 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
619 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
620 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
621 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
622 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
623 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
624 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
625 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
626 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
627 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
628 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
629 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
630 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
631 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
632 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
633 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
634 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
635 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
636 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
637 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
638 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
639 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
640 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
641 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
642 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
643 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
644 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
645 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
646 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
647 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
648 0x2d02ef8dL
649};
650
651void thread::start (void *(*start_routine)(void *), void *arg)
652{
653 pthread_attr_t attr;
654
655 pthread_attr_init (&attr);
656 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
657 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
658 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
659#ifdef PTHREAD_SCOPE_PROCESS
660 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
661#endif
662
663 sigset_t fullsigset, oldsigset;
664 sigfillset (&fullsigset);
665
666 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
667
668 if (pthread_create (&id, &attr, start_routine, arg))
669 cleanup ("unable to create a new thread");
670
671 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
672}
673

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