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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 1.86 by root, Mon Jan 12 03:40:21 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>
39 37
38#include <sys/time.h>
39#include <sys/resource.h>
40
40#include <glib.h> 41#include <glib.h>
41 42
42rand_gen rndm; 43refcnt_base::refcnt_t refcnt_dummy;
44ssize_t slice_alloc;
45rand_gen rndm, rmg_rndm;
43 46
44void 47void
45tausworthe_random_generator::seed (uint32_t seed) 48tausworthe_random_generator::seed (uint32_t seed)
46{ 49{
47 state [0] = max ( 2, seed * 69069U); 50 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
48 state [1] = max ( 8, state [0] * 69069U); 51 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
49 state [2] = max ( 16, state [1] * 69069U); 52 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
50 state [3] = max (128, state [2] * 69069U); 53 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
51 54
52 for (int i = 11; --i; ) 55 for (int i = 11; --i; )
53 operator ()(); 56 next ();
54} 57}
55 58
56uint32_t 59uint32_t
57tausworthe_random_generator::next () 60tausworthe_random_generator::next ()
58{ 61{
62 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U); 65 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
63 66
64 return state [0] ^ state [1] ^ state [2] ^ state [3]; 67 return state [0] ^ state [1] ^ state [2] ^ state [3];
65} 68}
66 69
70template<class generator>
67uint32_t 71uint32_t
68tausworthe_random_generator::get_range (uint32_t r_max) 72random_number_generator<generator>::get_range (uint32_t num)
69{ 73{
70 return next () % r_max; 74 return (this->next () * (uint64_t)num) >> 32U;
71} 75}
72 76
73// return a number within (min .. max) 77// return a number within (min .. max)
78template<class generator>
74int 79int
75tausworthe_random_generator::get_range (int r_min, int r_max) 80random_number_generator<generator>::get_range (int r_min, int r_max)
76{ 81{
77 return r_min + (*this) (max (r_max - r_min + 1, 1)); 82 return r_min + get_range (max (r_max - r_min + 1, 0));
78} 83}
84
85template struct random_number_generator<tausworthe_random_generator>;
86template struct random_number_generator<xorshift_random_generator>;
79 87
80/* 88/*
81 * The random functions here take luck into account when rolling random 89 * 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 90 * dice or numbers. This function has less of an impact the larger the
83 * difference becomes in the random numbers. IE, the effect is lessened 91 * difference becomes in the random numbers. IE, the effect is lessened
93 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 101 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
94 */ 102 */
95int 103int
96random_roll (int r_min, int r_max, const object *op, int goodbad) 104random_roll (int r_min, int r_max, const object *op, int goodbad)
97{ 105{
106 r_max = max (r_min, r_max);
107
98 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ 108 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
99
100 if (r_max < 1 || r_max < r_min)
101 {
102 LOG (llevError, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
103 return r_min;
104 }
105 109
106 if (op->type == PLAYER) 110 if (op->type == PLAYER)
107 { 111 {
108 int luck = op->stats.luck; 112 int luck = op->stats.luck;
109 113
118 122
119/* 123/*
120 * This is a 64 bit version of random_roll above. This is needed 124 * This is a 64 bit version of random_roll above. This is needed
121 * for exp loss calculations for players changing religions. 125 * for exp loss calculations for players changing religions.
122 */ 126 */
123
124sint64 127sint64
125random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 128random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
126{ 129{
127 sint64 omin, diff, luck, ran; 130 sint64 omin = r_min;
128 int base; 131 sint64 range = max (0, r_max - r_min + 1);
132 int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
129 133
130 omin = min; 134 /*
131 diff = max - min + 1;
132 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
133
134 if (max < 1 || diff < 1)
135 {
136 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
137 return (min); /* avoids a float exception */
138 }
139
140 /* Don't know of a portable call to get 64 bit random values.
141 * So make a call to get two 32 bit random numbers, and just to 135 * 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 136 * a little bitshifting.
143 * 32 bit, so we don't get skewed results
144 */ 137 */
145 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 138 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
146 139
147 if (op->type != PLAYER) 140 if (op->type != PLAYER)
148 return ((ran % diff) + min); 141 return ((ran % range) + r_min);
149 142
150 luck = op->stats.luck; 143 int luck = op->stats.luck;
144
151 if (RANDOM () % base < MIN (10, abs (luck))) 145 if (rndm (base) < min (10, abs (luck)))
152 { 146 {
153 /* we have a winner */ 147 /* we have a winner */
154 ((luck > 0) ? (luck = 1) : (luck = -1)); 148 ((luck > 0) ? (luck = 1) : (luck = -1));
155 diff -= luck; 149 range -= luck;
156 if (diff < 1) 150 if (range < 1)
157 return (omin); /*check again */ 151 return (omin); /*check again */
152
158 ((goodbad) ? (min += luck) : (diff)); 153 ((goodbad) ? (r_min += luck) : (range));
159 154
160 return (MAX (omin, MIN (max, (ran % diff) + min))); 155 return (max (omin, min (r_max, (ran % range) + r_min)));
161 } 156 }
162 return ((ran % diff) + min); 157
158 return ran % range + r_min;
163} 159}
164 160
165/* 161/*
166 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 162 * 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. 163 * 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, 164 * Generally, op should be the player/caster/hitter requesting the roll,
169 * not the recipient (ie, the poor slob getting hit). 165 * not the recipient (ie, the poor slob getting hit).
170 * The args are num D size (ie 4d6) [garbled 20010916] 166 * The args are num D size (ie 4d6) [garbled 20010916]
171 */ 167 */
172
173int 168int
174die_roll (int num, int size, const object *op, int goodbad) 169die_roll (int num, int size, const object *op, int goodbad)
175{ 170{
176 int min, diff, luck, total, i, gotlucky, base, ran; 171 int min, luck, total, i, gotlucky;
177 172
178 diff = size; 173 int diff = size;
179 min = 1; 174 min = 1;
180 luck = total = gotlucky = 0; 175 luck = total = gotlucky = 0;
181 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 176 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
177
182 if (size < 2 || diff < 1) 178 if (size < 2 || diff < 1)
183 { 179 {
184 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 180 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
185 return (num); /* avoids a float exception */ 181 return num; /* avoids a float exception */
186 } 182 }
187 183
188 if (op->type == PLAYER) 184 if (op->type == PLAYER)
189 luck = op->stats.luck; 185 luck = op->stats.luck;
190 186
191 for (i = 0; i < num; i++) 187 for (i = 0; i < num; i++)
192 { 188 {
193 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 189 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
194 { 190 {
195 /* we have a winner */ 191 /* we have a winner */
196 gotlucky++; 192 gotlucky++;
197 ((luck > 0) ? (luck = 1) : (luck = -1)); 193 ((luck > 0) ? (luck = 1) : (luck = -1));
198 diff -= luck; 194 diff -= luck;
199 if (diff < 1) 195 if (diff < 1)
200 return (num); /*check again */ 196 return (num); /*check again */
201 ((goodbad) ? (min += luck) : (diff)); 197 ((goodbad) ? (min += luck) : (diff));
202 ran = RANDOM ();
203 total += MAX (1, MIN (size, (ran % diff) + min)); 198 total += MAX (1, MIN (size, rndm (diff) + min));
204 } 199 }
205 else 200 else
206 {
207 total += RANDOM () % size + 1; 201 total += rndm (size) + 1;
208 }
209 } 202 }
203
210 return (total); 204 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} 205}
280 206
281/* convert materialname to materialtype_t */ 207/* convert materialname to materialtype_t */
282 208
283materialtype_t * 209materialtype_t *
284name_to_material (const char *name) 210name_to_material (const shstr_cmp name)
285{ 211{
286 materialtype_t *mt, *nmt; 212 for (materialtype_t *mt = materialt; mt; mt = mt->next)
213 if (name == mt->name)
214 return mt;
287 215
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; 216 return 0;
298} 217}
299 218
300/* when doing transmutation of objects, we have to recheck the resistances, 219/* when doing transmutation of objects, we have to recheck the resistances,
301 * as some that did not apply previously, may apply now. 220 * as some that did not apply previously, may apply now.
302 */ 221 */
303
304void 222void
305transmute_materialname (object *op, const object *change) 223transmute_materialname (object *op, const object *change)
306{ 224{
307 materialtype_t *mt; 225 materialtype_t *mt;
308 int j; 226 int j;
309 227
310 if (op->materialname == NULL) 228 if (!op->materialname)
311 return; 229 return;
312 230
313 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 231 if (op->materialname != change->materialname)
314 return; 232 return;
315 233
316 if (!op->is_armor ()) 234 if (!op->is_armor ())
317 return; 235 return;
318 236
319 mt = name_to_material (op->materialname); 237 mt = name_to_material (op->materialname);
320 if (!mt) 238 if (!mt)
321 { 239 {
322 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 240 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
323 return; 241 return;
324 } 242 }
325 243
326 for (j = 0; j < NROFATTACKS; j++) 244 for (j = 0; j < NROFATTACKS; j++)
327 if (op->resist[j] == 0 && change->resist[j] != 0) 245 if (op->resist[j] == 0 && change->resist[j] != 0)
338void 256void
339set_materialname (object *op, int difficulty, materialtype_t *nmt) 257set_materialname (object *op, int difficulty, materialtype_t *nmt)
340{ 258{
341 materialtype_t *mt, *lmt; 259 materialtype_t *mt, *lmt;
342 260
343#ifdef NEW_MATERIAL_CODE
344 int j;
345#endif
346
347 if (op->materialname != NULL) 261 if (!op->materialname)
348 return; 262 return;
349 263
350 264 if (nmt)
351 265 lmt = nmt;
352 if (nmt == NULL) 266 else
353 { 267 {
354 lmt = NULL; 268 lmt = 0;
355#ifndef NEW_MATERIAL_CODE 269
356 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 270 for (mt = materialt; mt; 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 }
378 else
379 { 278 }
380 lmt = nmt; 279
280 if (lmt)
381 } 281 {
382
383 if (lmt != NULL)
384 {
385#ifndef NEW_MATERIAL_CODE
386 op->materialname = lmt->name;
387 return;
388#else
389
390 if (op->stats.dam && op->is_weapon ()) 282 if (op->stats.dam && op->is_weapon ())
391 { 283 {
392 op->stats.dam += lmt->damage; 284 op->stats.dam += lmt->damage;
393 if (op->stats.dam < 1) 285 if (op->stats.dam < 1)
394 op->stats.dam = 1; 286 op->stats.dam = 1;
395 } 287 }
288
396 if (op->stats.sp && op->type == BOW) 289 if (op->stats.sp && op->type == BOW)
397 op->stats.sp += lmt->sp; 290 op->stats.sp += lmt->sp;
398 if (op->stats.wc && op->is_weapon ()) 291 if (op->stats.wc && op->is_weapon ())
399 op->stats.wc += lmt->wc; 292 op->stats.wc += lmt->wc;
400 if (op->is_armor ()) 293 if (op->is_armor ())
401 { 294 {
402 if (op->stats.ac) 295 if (op->stats.ac)
403 op->stats.ac += lmt->ac; 296 op->stats.ac += lmt->ac;
297
404 for (j = 0; j < NROFATTACKS; j++) 298 for (int j = 0; j < NROFATTACKS; j++)
405 if (op->resist[j] != 0) 299 if (op->resist[j] != 0)
406 { 300 {
407 op->resist[j] += lmt->mod[j]; 301 op->resist[j] += lmt->mod[j];
408 if (op->resist[j] > 100) 302 if (op->resist[j] > 100)
409 op->resist[j] = 100; 303 op->resist[j] = 100;
410 if (op->resist[j] < -100) 304 if (op->resist[j] < -100)
411 op->resist[j] = -100; 305 op->resist[j] = -100;
412 } 306 }
413 } 307 }
308
414 op->materialname = add_string (lmt->name); 309 op->materialname = lmt->name;
415 /* dont make it unstackable if it doesn't need to be */ 310 /* dont make it unstackable if it doesn't need to be */
416 if (op->is_weapon () || op->is_armor ()) 311 if (op->is_weapon () || op->is_armor ())
417 { 312 {
418 op->weight = (op->weight * lmt->weight) / 100; 313 op->weight = (op->weight * lmt->weight) / 100;
419 op->value = (op->value * lmt->value) / 100; 314 op->value = (op->value * lmt->value) / 100;
420 } 315 }
421#endif
422 } 316 }
423} 317}
424 318
425/* 319/*
426 * Strip out the media tags from a String. 320 * Strip out the media tags from a String.
521 * a 'list' for the purposes here, is a string of items, seperated by commas, except 415 * 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. 416 * 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. 417 * This function will also strip all trailing non alphanumeric characters.
524 * It does not insert an oxford comma. 418 * It does not insert an oxford comma.
525 */ 419 */
526
527void 420void
528make_list_like (char *input) 421make_list_like (char *input)
529{ 422{
530 char *p, tmp[MAX_BUF]; 423 char *p, tmp[MAX_BUF];
531 int i; 424 int i;
561void 454void
562fork_abort (const char *msg) 455fork_abort (const char *msg)
563{ 456{
564 if (!fork ()) 457 if (!fork ())
565 { 458 {
459 signal (SIGINT , SIG_IGN);
460 signal (SIGTERM, SIG_IGN);
566 signal (SIGABRT, SIG_DFL); 461 signal (SIGABRT, SIG_IGN);
462
463 signal (SIGSEGV, SIG_DFL);
464 signal (SIGBUS , SIG_DFL);
465 signal (SIGILL , SIG_DFL);
466 signal (SIGTRAP, SIG_DFL);
467
468 // try to put corefiles into a subdirectory, if existing, to allow
469 // an administrator to reduce the I/O load.
470 chdir ("cores");
471
472 // try to detach us from as many external dependencies as possible
473 // as coredumping can take time by closing all fd's.
474 {
475 struct rlimit lim;
476
477 if (getrlimit (RLIMIT_NOFILE, &lim))
478 lim.rlim_cur = 1024;
479
480 for (int i = 0; i < lim.rlim_cur; ++i)
481 close (i);
482 }
483
484 {
485 sigset_t empty;
486 sigemptyset (&empty);
487 sigprocmask (SIG_SETMASK, &empty, 0);
488 }
489
490 // try to coredump with SIGTRAP
491 kill (getpid (), SIGTRAP);
567 abort (); 492 abort ();
568 } 493 }
569 494
570 LOG (llevError, "fork abort: %s\n", msg); 495 LOG (llevError, "fork abort: %s\n", msg);
571} 496}
575 void *ptr = g_slice_alloc (n); 500 void *ptr = g_slice_alloc (n);
576 501
577 if (!ptr) 502 if (!ptr)
578 throw std::bad_alloc (); 503 throw std::bad_alloc ();
579 504
505 slice_alloc += n;
580 return ptr; 506 return ptr;
581} 507}
582 508
583void *salloc_ (int n, void *src) throw (std::bad_alloc) 509void *salloc_ (int n, void *src) throw (std::bad_alloc)
584{ 510{
590 memset (ptr, 0, n); 516 memset (ptr, 0, n);
591 517
592 return ptr; 518 return ptr;
593} 519}
594 520
521/******************************************************************************/
522
523#if DEBUG_SALLOC
524
525#define MAGIC 0xa1b2c35543deadLL
526
527void *g_slice_alloc (unsigned long size)
528{
529 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
530 *p++ = size ^ MAGIC;
531 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
532 return (void *)p;
533}
534
535void *g_slice_alloc0 (unsigned long size)
536{
537 return memset (g_slice_alloc (size), 0, size);
538}
539
540void g_slice_free1 (unsigned long size, void *ptr)
541{
542 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
543 if (expect_true (ptr))
544 {
545 unsigned long *p = (unsigned long *)ptr;
546 unsigned long s = *--p ^ MAGIC;
547
548 if (size != (unsigned long)(*p ^ MAGIC))
549 {
550 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
551 abort ();
552 }
553
554 *p = MAGIC;
555
556 (g_slice_free1)(s + sizeof (unsigned long), p);
557 }
558}
559
560#endif
561
562/******************************************************************************/
563
564int
595void assign (char *dst, const char *src, int maxlen) 565assign (char *dst, const char *src, int maxsize)
596{ 566{
597 if (!src) 567 if (!src)
598 src = ""; 568 src = "";
599 569
600 int len = strlen (src); 570 int len = strlen (src);
601 571
602 if (len >= maxlen - 1) 572 if (len >= maxsize)
603 { 573 {
604 if (maxlen <= 4) 574 if (maxsize <= 4)
605 { 575 {
606 memset (dst, '.', maxlen - 1); 576 memset (dst, '.', maxsize - 2);
607 dst [maxlen - 1] = 0; 577 dst [maxsize - 1] = 0;
608 } 578 }
609 else 579 else
610 { 580 {
611 memcpy (dst, src, maxlen - 4); 581 memcpy (dst, src, maxsize - 4);
612 memcpy (dst + maxlen - 4, "...", 4); 582 memcpy (dst + maxsize - 4, "...", 4);
613 } 583 }
584
585 len = maxsize;
614 } 586 }
615 else 587 else
616 memcpy (dst, src, len + 1); 588 memcpy (dst, src, ++len);
589
590 return len;
591}
592
593const char *
594format (const char *format, ...)
595{
596 static dynbuf_text buf;
597
598 buf.clear ();
599
600 va_list ap;
601 va_start (ap, format);
602 buf.vprintf (format, ap);
603 va_end (ap);
604
605 return buf;
617} 606}
618 607
619tstamp now () 608tstamp now ()
620{ 609{
621 struct timeval tv; 610 struct timeval tv;
632 621
633 int diff = (b - a) & 7; 622 int diff = (b - a) & 7;
634 return diff <= 1 || diff >= 7; 623 return diff <= 1 || diff >= 7;
635} 624}
636 625
626/* crc32 0xdebb20e3 table and supplementary functions. */
627extern const uint32_t crc_32_tab[256] =
628{
629 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
630 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
631 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
632 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
633 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
634 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
635 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
636 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
637 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
638 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
639 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
640 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
641 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
642 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
643 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
644 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
645 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
646 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
647 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
648 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
649 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
650 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
651 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
652 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
653 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
654 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
655 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
656 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
657 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
658 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
659 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
660 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
661 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
662 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
663 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
664 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
665 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
666 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
667 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
668 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
669 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
670 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
671 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
672 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
673 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
674 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
675 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
676 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
677 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
678 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
679 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
680 0x2d02ef8dL
681};
682
683void thread::start (void *(*start_routine)(void *), void *arg)
684{
685 pthread_attr_t attr;
686
687 pthread_attr_init (&attr);
688 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
689 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
690 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
691#ifdef PTHREAD_SCOPE_PROCESS
692 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
693#endif
694
695 sigset_t fullsigset, oldsigset;
696 sigfillset (&fullsigset);
697
698 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
699
700 if (pthread_create (&id, &attr, start_routine, arg))
701 cleanup ("unable to create a new thread");
702
703 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
704}
705

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