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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.38 by root, Mon Jan 15 02:42:15 2007 UTC vs.
Revision 1.82 by root, Thu Sep 11 12:43:17 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. 20 *
21 21 * The authors can be reached via e-mail to <support@deliantra.net>
22 The authors can be reached via e-mail at <crossfire@schmorp.de>
23*/ 22 */
24 23
25/* 24/*
26 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
27 */ 26 */
28 27
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>
42
43refcnt_base::refcnt_t refcnt_dummy;
44ssize_t slice_alloc;
45rand_gen rndm, rmg_rndm;
46
47void
48tausworthe_random_generator::seed (uint32_t seed)
49{
50 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
51 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
52 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
53 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
54
55 for (int i = 11; --i; )
56 operator ()();
57}
58
59uint32_t
60tausworthe_random_generator::next ()
61{
62 state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
63 state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
64 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
65 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
66
67 return state [0] ^ state [1] ^ state [2] ^ state [3];
68}
69
70uint32_t
71tausworthe_random_generator::get_range (uint32_t num)
72{
73 return (next () * (uint64_t)num) >> 32U;
74}
75
76// return a number within (min .. max)
77int
78tausworthe_random_generator::get_range (int r_min, int r_max)
79{
80 return r_min + get_range (max (r_max - r_min + 1, 0));
81}
41 82
42/* 83/*
43 * The random functions here take luck into account when rolling random 84 * The random functions here take luck into account when rolling random
44 * dice or numbers. This function has less of an impact the larger the 85 * dice or numbers. This function has less of an impact the larger the
45 * difference becomes in the random numbers. IE, the effect is lessened 86 * difference becomes in the random numbers. IE, the effect is lessened
52 * Roll a random number between min and max. Uses op to determine luck, 93 * Roll a random number between min and max. Uses op to determine luck,
53 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. 94 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
54 * Generally, op should be the player/caster/hitter requesting the roll, 95 * Generally, op should be the player/caster/hitter requesting the roll,
55 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 96 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
56 */ 97 */
57
58int 98int
59random_roll (int min, int max, const object *op, int goodbad) 99random_roll (int r_min, int r_max, const object *op, int goodbad)
60{ 100{
61 int omin, diff, luck, base, ran; 101 r_max = max (r_min, r_max);
62 102
63 omin = min; 103 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
64 diff = max - min + 1;
65 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
66 104
67 if (max < 1 || diff < 1)
68 {
69 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
70 return (min); /* avoids a float exception */
71 }
72
73 ran = RANDOM ();
74
75 if (op->type != PLAYER) 105 if (op->type == PLAYER)
76 return ((ran % diff) + min); 106 {
77
78 luck = op->stats.luck; 107 int luck = op->stats.luck;
79 if (RANDOM () % base < MIN (10, abs (luck))) 108
109 if (rndm (base) < min (10, abs (luck)))
110 {
111 //TODO: take luck into account
112 }
80 { 113 }
81 /* we have a winner */
82 ((luck > 0) ? (luck = 1) : (luck = -1));
83 diff -= luck;
84 if (diff < 1)
85 return (omin); /*check again */
86 ((goodbad) ? (min += luck) : (diff));
87 114
88 return (MAX (omin, MIN (max, (ran % diff) + min))); 115 return rndm (r_min, r_max);
89 }
90 return ((ran % diff) + min);
91} 116}
92 117
93/* 118/*
94 * This is a 64 bit version of random_roll above. This is needed 119 * This is a 64 bit version of random_roll above. This is needed
95 * for exp loss calculations for players changing religions. 120 * for exp loss calculations for players changing religions.
96 */ 121 */
97
98sint64 122sint64
99random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 123random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
100{ 124{
101 sint64 omin, diff, luck, ran; 125 sint64 omin = r_min;
102 int base; 126 sint64 range = max (0, r_max - r_min + 1);
127 int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
103 128
104 omin = min; 129 /*
105 diff = max - min + 1;
106 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
107
108 if (max < 1 || diff < 1)
109 {
110 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
111 return (min); /* avoids a float exception */
112 }
113
114 /* Don't know of a portable call to get 64 bit random values.
115 * So make a call to get two 32 bit random numbers, and just to 130 * Make a call to get two 32 bit unsigned random numbers, and just to
116 * a little byteshifting. Do make sure the first one is only 131 * a little bitshifting.
117 * 32 bit, so we don't get skewed results
118 */ 132 */
119 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 133 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
120 134
121 if (op->type != PLAYER) 135 if (op->type != PLAYER)
122 return ((ran % diff) + min); 136 return ((ran % range) + r_min);
123 137
124 luck = op->stats.luck; 138 int luck = op->stats.luck;
139
125 if (RANDOM () % base < MIN (10, abs (luck))) 140 if (rndm (base) < min (10, abs (luck)))
126 { 141 {
127 /* we have a winner */ 142 /* we have a winner */
128 ((luck > 0) ? (luck = 1) : (luck = -1)); 143 ((luck > 0) ? (luck = 1) : (luck = -1));
129 diff -= luck; 144 range -= luck;
130 if (diff < 1) 145 if (range < 1)
131 return (omin); /*check again */ 146 return (omin); /*check again */
147
132 ((goodbad) ? (min += luck) : (diff)); 148 ((goodbad) ? (r_min += luck) : (range));
133 149
134 return (MAX (omin, MIN (max, (ran % diff) + min))); 150 return (max (omin, min (r_max, (ran % range) + r_min)));
135 } 151 }
136 return ((ran % diff) + min); 152
153 return ran % range + r_min;
137} 154}
138 155
139/* 156/*
140 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 157 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
141 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 158 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
142 * Generally, op should be the player/caster/hitter requesting the roll, 159 * Generally, op should be the player/caster/hitter requesting the roll,
143 * not the recipient (ie, the poor slob getting hit). 160 * not the recipient (ie, the poor slob getting hit).
144 * The args are num D size (ie 4d6) [garbled 20010916] 161 * The args are num D size (ie 4d6) [garbled 20010916]
145 */ 162 */
146
147int 163int
148die_roll (int num, int size, const object *op, int goodbad) 164die_roll (int num, int size, const object *op, int goodbad)
149{ 165{
150 int min, diff, luck, total, i, gotlucky, base, ran; 166 int min, luck, total, i, gotlucky;
151 167
152 diff = size; 168 int diff = size;
153 min = 1; 169 min = 1;
154 luck = total = gotlucky = 0; 170 luck = total = gotlucky = 0;
155 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 171 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
172
156 if (size < 2 || diff < 1) 173 if (size < 2 || diff < 1)
157 { 174 {
158 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 175 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
159 return (num); /* avoids a float exception */ 176 return num; /* avoids a float exception */
160 } 177 }
161 178
162 if (op->type == PLAYER) 179 if (op->type == PLAYER)
163 luck = op->stats.luck; 180 luck = op->stats.luck;
164 181
165 for (i = 0; i < num; i++) 182 for (i = 0; i < num; i++)
166 { 183 {
167 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 184 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
168 { 185 {
169 /* we have a winner */ 186 /* we have a winner */
170 gotlucky++; 187 gotlucky++;
171 ((luck > 0) ? (luck = 1) : (luck = -1)); 188 ((luck > 0) ? (luck = 1) : (luck = -1));
172 diff -= luck; 189 diff -= luck;
173 if (diff < 1) 190 if (diff < 1)
174 return (num); /*check again */ 191 return (num); /*check again */
175 ((goodbad) ? (min += luck) : (diff)); 192 ((goodbad) ? (min += luck) : (diff));
176 ran = RANDOM ();
177 total += MAX (1, MIN (size, (ran % diff) + min)); 193 total += MAX (1, MIN (size, rndm (diff) + min));
178 } 194 }
179 else 195 else
180 {
181 total += RANDOM () % size + 1; 196 total += rndm (size) + 1;
182 }
183 } 197 }
198
184 return (total); 199 return total;
185}
186
187/*
188 * Another convenience function. Returns a number between min and max.
189 * It is suggested one use these functions rather than RANDOM()%, as it
190 * would appear that a number of off-by-one-errors exist due to improper
191 * use of %. This should also prevent SIGFPE.
192 */
193
194int
195rndm (int min, int max)
196{
197 int diff;
198
199 diff = max - min + 1;
200 if (max < 1 || diff < 1)
201 return (min);
202
203 return (RANDOM () % diff + min);
204}
205
206/* decay and destroy perishable items in a map */
207void
208maptile::decay_objects ()
209{
210 if (!spaces)
211 return;
212
213 for (mapspace *ms = spaces + size (); ms-- > spaces; )
214 for (object *above, *op = ms->bot; op; op = above)
215 {
216 above = op->above;
217
218 bool destroy = 0;
219
220 // do not decay anything above unique floor tiles (yet :)
221 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
222 break;
223
224 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
225 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
226 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
227 || QUERY_FLAG (op, FLAG_UNIQUE)
228 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
229 || QUERY_FLAG (op, FLAG_UNPAID)
230 || op->is_alive ())
231 ; // do not decay
232 else if (op->is_weapon ())
233 {
234 op->stats.dam--;
235 if (op->stats.dam < 0)
236 destroy = 1;
237 }
238 else if (op->is_armor ())
239 {
240 op->stats.ac--;
241 if (op->stats.ac < 0)
242 destroy = 1;
243 }
244 else if (op->type == FOOD)
245 {
246 op->stats.food -= rndm (5, 20);
247 if (op->stats.food < 0)
248 destroy = 1;
249 }
250 else
251 {
252 int mat = op->material;
253
254 if (mat & M_PAPER
255 || mat & M_LEATHER
256 || mat & M_WOOD
257 || mat & M_ORGANIC
258 || mat & M_CLOTH
259 || mat & M_LIQUID
260 || (mat & M_IRON && rndm (1, 5) == 1)
261 || (mat & M_GLASS && rndm (1, 2) == 1)
262 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
263 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
264 || (mat & M_ICE && temp > 32))
265 destroy = 1;
266 }
267
268 /* adjust overall chance below */
269 if (destroy && rndm (0, 1))
270 op->destroy ();
271 }
272} 200}
273 201
274/* convert materialname to materialtype_t */ 202/* convert materialname to materialtype_t */
275 203
276materialtype_t * 204materialtype_t *
277name_to_material (const char *name) 205name_to_material (const shstr &name)
278{ 206{
279 materialtype_t *mt, *nmt; 207 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
208 if (name == mt->name)
209 return mt;
280 210
281 mt = NULL;
282 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
283 {
284 if (strcmp (name, nmt->name) == 0)
285 {
286 mt = nmt;
287 break;
288 }
289 }
290 return mt; 211 return 0;
291} 212}
292 213
293/* when doing transmutation of objects, we have to recheck the resistances, 214/* when doing transmutation of objects, we have to recheck the resistances,
294 * as some that did not apply previously, may apply now. 215 * as some that did not apply previously, may apply now.
295 */ 216 */
296
297void 217void
298transmute_materialname (object *op, const object *change) 218transmute_materialname (object *op, const object *change)
299{ 219{
300 materialtype_t *mt; 220 materialtype_t *mt;
301 int j; 221 int j;
310 return; 230 return;
311 231
312 mt = name_to_material (op->materialname); 232 mt = name_to_material (op->materialname);
313 if (!mt) 233 if (!mt)
314 { 234 {
315 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 235 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
316 return; 236 return;
317 } 237 }
318 238
319 for (j = 0; j < NROFATTACKS; j++) 239 for (j = 0; j < NROFATTACKS; j++)
320 if (op->resist[j] == 0 && change->resist[j] != 0) 240 if (op->resist[j] == 0 && change->resist[j] != 0)
331void 251void
332set_materialname (object *op, int difficulty, materialtype_t *nmt) 252set_materialname (object *op, int difficulty, materialtype_t *nmt)
333{ 253{
334 materialtype_t *mt, *lmt; 254 materialtype_t *mt, *lmt;
335 255
336#ifdef NEW_MATERIAL_CODE
337 int j;
338#endif
339
340 if (op->materialname != NULL) 256 if (op->materialname != NULL)
341 return; 257 return;
342 258
343
344
345 if (nmt == NULL) 259 if (nmt == NULL)
346 { 260 {
347 lmt = NULL; 261 lmt = NULL;
348#ifndef NEW_MATERIAL_CODE 262
349 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 263 for (mt = materialt; mt && mt->next; mt = mt->next)
350 { 264 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
351 if (op->material & mt->material) 265 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
352 { 266 {
353 lmt = mt; 267 lmt = mt;
268 if (!(op->is_weapon () || op->is_armor ()))
354 break; 269 break;
355 } 270 }
356 }
357
358#else
359 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
360 {
361 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
362 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
363 {
364 lmt = mt;
365 if (!(op->is_weapon () || op->is_armor ()))
366 break;
367 }
368 }
369#endif
370 } 271 }
371 else 272 else
372 {
373 lmt = nmt; 273 lmt = nmt;
374 }
375 274
376 if (lmt != NULL) 275 if (lmt != NULL)
377 { 276 {
378#ifndef NEW_MATERIAL_CODE
379 op->materialname = lmt->name;
380 return;
381#else
382
383 if (op->stats.dam && op->is_weapon ()) 277 if (op->stats.dam && op->is_weapon ())
384 { 278 {
385 op->stats.dam += lmt->damage; 279 op->stats.dam += lmt->damage;
386 if (op->stats.dam < 1) 280 if (op->stats.dam < 1)
387 op->stats.dam = 1; 281 op->stats.dam = 1;
388 } 282 }
283
389 if (op->stats.sp && op->type == BOW) 284 if (op->stats.sp && op->type == BOW)
390 op->stats.sp += lmt->sp; 285 op->stats.sp += lmt->sp;
391 if (op->stats.wc && op->is_weapon ()) 286 if (op->stats.wc && op->is_weapon ())
392 op->stats.wc += lmt->wc; 287 op->stats.wc += lmt->wc;
393 if (op->is_armor ()) 288 if (op->is_armor ())
394 { 289 {
395 if (op->stats.ac) 290 if (op->stats.ac)
396 op->stats.ac += lmt->ac; 291 op->stats.ac += lmt->ac;
292
397 for (j = 0; j < NROFATTACKS; j++) 293 for (int j = 0; j < NROFATTACKS; j++)
398 if (op->resist[j] != 0) 294 if (op->resist[j] != 0)
399 { 295 {
400 op->resist[j] += lmt->mod[j]; 296 op->resist[j] += lmt->mod[j];
401 if (op->resist[j] > 100) 297 if (op->resist[j] > 100)
402 op->resist[j] = 100; 298 op->resist[j] = 100;
403 if (op->resist[j] < -100) 299 if (op->resist[j] < -100)
404 op->resist[j] = -100; 300 op->resist[j] = -100;
405 } 301 }
406 } 302 }
303
407 op->materialname = add_string (lmt->name); 304 op->materialname = lmt->name;
408 /* dont make it unstackable if it doesn't need to be */ 305 /* dont make it unstackable if it doesn't need to be */
409 if (op->is_weapon () || op->is_armor ()) 306 if (op->is_weapon () || op->is_armor ())
410 { 307 {
411 op->weight = (op->weight * lmt->weight) / 100; 308 op->weight = (op->weight * lmt->weight) / 100;
412 op->value = (op->value * lmt->value) / 100; 309 op->value = (op->value * lmt->value) / 100;
413 } 310 }
414#endif
415 } 311 }
416} 312}
417 313
418/* 314/*
419 * Strip out the media tags from a String. 315 * Strip out the media tags from a String.
514 * a 'list' for the purposes here, is a string of items, seperated by commas, except 410 * a 'list' for the purposes here, is a string of items, seperated by commas, except
515 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 411 * for the last entry, which has an 'and' before it, and a full stop (period) after it.
516 * This function will also strip all trailing non alphanumeric characters. 412 * This function will also strip all trailing non alphanumeric characters.
517 * It does not insert an oxford comma. 413 * It does not insert an oxford comma.
518 */ 414 */
519
520void 415void
521make_list_like (char *input) 416make_list_like (char *input)
522{ 417{
523 char *p, tmp[MAX_BUF]; 418 char *p, tmp[MAX_BUF];
524 int i; 419 int i;
554void 449void
555fork_abort (const char *msg) 450fork_abort (const char *msg)
556{ 451{
557 if (!fork ()) 452 if (!fork ())
558 { 453 {
454 signal (SIGINT , SIG_IGN);
455 signal (SIGTERM, SIG_IGN);
559 signal (SIGABRT, SIG_DFL); 456 signal (SIGABRT, SIG_IGN);
457
458 signal (SIGSEGV, SIG_DFL);
459 signal (SIGBUS , SIG_DFL);
460 signal (SIGILL , SIG_DFL);
461 signal (SIGTRAP, SIG_DFL);
462
463 // try to put corefiles into a subdirectory, if existing, to allow
464 // an administrator to reduce the I/O load.
465 chdir ("cores");
466
467 // try to detach us from as many external dependencies as possible
468 // as coredumping can take time by closing all fd's.
469 {
470 struct rlimit lim;
471
472 if (getrlimit (RLIMIT_NOFILE, &lim))
473 lim.rlim_cur = 1024;
474
475 for (int i = 0; i < lim.rlim_cur; ++i)
476 close (i);
477 }
478
479 {
480 sigset_t empty;
481 sigemptyset (&empty);
482 sigprocmask (SIG_SETMASK, &empty, 0);
483 }
484
485 // try to coredump with SIGTRAP
486 kill (getpid (), SIGTRAP);
560 abort (); 487 abort ();
561 } 488 }
562 489
563 LOG (llevError, "fork abort: %s\n", msg); 490 LOG (llevError, "fork abort: %s\n", msg);
564} 491}
568 void *ptr = g_slice_alloc (n); 495 void *ptr = g_slice_alloc (n);
569 496
570 if (!ptr) 497 if (!ptr)
571 throw std::bad_alloc (); 498 throw std::bad_alloc ();
572 499
500 slice_alloc += n;
573 return ptr; 501 return ptr;
574} 502}
575 503
576void *salloc_ (int n, void *src) throw (std::bad_alloc) 504void *salloc_ (int n, void *src) throw (std::bad_alloc)
577{ 505{
583 memset (ptr, 0, n); 511 memset (ptr, 0, n);
584 512
585 return ptr; 513 return ptr;
586} 514}
587 515
516/******************************************************************************/
517
518#if DEBUG_SALLOC
519
520#define MAGIC 0xa1b2c35543deadLL
521
522void *g_slice_alloc (unsigned long size)
523{
524 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
525 *p++ = size ^ MAGIC;
526 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
527 return (void *)p;
528}
529
530void *g_slice_alloc0 (unsigned long size)
531{
532 return memset (g_slice_alloc (size), 0, size);
533}
534
535void g_slice_free1 (unsigned long size, void *ptr)
536{
537 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
538 if (expect_true (ptr))
539 {
540 unsigned long *p = (unsigned long *)ptr;
541 unsigned long s = *--p ^ MAGIC;
542
543 if (size != (unsigned long)(*p ^ MAGIC))
544 {
545 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
546 abort ();
547 }
548
549 *p = MAGIC;
550
551 (g_slice_free1)(s + sizeof (unsigned long), p);
552 }
553}
554
555#endif
556
557/******************************************************************************/
558
588void assign (char *dst, const char *src, int maxlen) 559void assign (char *dst, const char *src, int maxlen)
589{ 560{
590 if (!src) 561 if (!src)
591 src = ""; 562 src = "";
592 563
607 } 578 }
608 else 579 else
609 memcpy (dst, src, len + 1); 580 memcpy (dst, src, len + 1);
610} 581}
611 582
583const char *
584format (const char *format, ...)
585{
586 static dynbuf_text buf;
587
588 buf.clear ();
589
590 va_list ap;
591 va_start (ap, format);
592 buf.vprintf (format, ap);
593 va_end (ap);
594
595 return buf;
596}
597
612tstamp now () 598tstamp now ()
613{ 599{
614 struct timeval tv; 600 struct timeval tv;
615 601
616 gettimeofday (&tv, 0); 602 gettimeofday (&tv, 0);
625 611
626 int diff = (b - a) & 7; 612 int diff = (b - a) & 7;
627 return diff <= 1 || diff >= 7; 613 return diff <= 1 || diff >= 7;
628} 614}
629 615
616/* crc32 0xdebb20e3 table and supplementary functions. */
617extern const uint32_t crc_32_tab[256] =
618{
619 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
620 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
621 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
622 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
623 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
624 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
625 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
626 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
627 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
628 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
629 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
630 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
631 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
632 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
633 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
634 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
635 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
636 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
637 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
638 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
639 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
640 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
641 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
642 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
643 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
644 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
645 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
646 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
647 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
648 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
649 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
650 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
651 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
652 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
653 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
654 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
655 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
656 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
657 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
658 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
659 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
660 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
661 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
662 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
663 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
664 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
665 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
666 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
667 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
668 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
669 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
670 0x2d02ef8dL
671};
672
673void thread::start (void *(*start_routine)(void *), void *arg)
674{
675 pthread_attr_t attr;
676
677 pthread_attr_init (&attr);
678 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
679 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
680 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
681#ifdef PTHREAD_SCOPE_PROCESS
682 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
683#endif
684
685 sigset_t fullsigset, oldsigset;
686 sigfillset (&fullsigset);
687
688 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
689
690 if (pthread_create (&id, &attr, start_routine, arg))
691 cleanup ("unable to create a new thread");
692
693 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
694}
695

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