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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.22 by root, Tue Dec 12 21:39:56 2006 UTC vs.
Revision 1.71 by root, Fri Feb 1 15:54:07 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 (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
8 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
9 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
10 (at your option) any later version. 11 * (at your option) any later version.
11 12 *
12 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,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 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
18 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
20 21 * The authors can be reached via e-mail to <support@deliantra.net>
21 The authors can be reached via e-mail at <crossfire@schmorp.de>
22*/ 22 */
23 23
24/* 24/*
25 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
26 */ 26 */
27
28#include <cstdlib>
29#include <sys/types.h>
30#include <unistd.h>
31#include <sys/time.h>
32#include <time.h>
33#include <signal.h>
27 34
28#include <global.h> 35#include <global.h>
29#include <funcpoint.h> 36#include <funcpoint.h>
30#include <material.h> 37#include <material.h>
31 38
32#include <glib.h> 39#include <glib.h>
40
41refcnt_base::refcnt_t refcnt_dummy;
42size_t slice_alloc;
43rand_gen rndm;
44
45void
46tausworthe_random_generator::seed (uint32_t seed)
47{
48 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
49 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
50 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
51 state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U;
52
53 for (int i = 11; --i; )
54 operator ()();
55}
56
57uint32_t
58tausworthe_random_generator::next ()
59{
60 state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
61 state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
62 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
63 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
64
65 return state [0] ^ state [1] ^ state [2] ^ state [3];
66}
67
68uint32_t
69tausworthe_random_generator::get_range (uint32_t num)
70{
71 return (next () * (uint64_t)num) >> 32U;
72}
73
74// return a number within (min .. max)
75int
76tausworthe_random_generator::get_range (int r_min, int r_max)
77{
78 return r_min + get_range (max (r_max - r_min + 1, 0));
79}
33 80
34/* 81/*
35 * The random functions here take luck into account when rolling random 82 * The random functions here take luck into account when rolling random
36 * dice or numbers. This function has less of an impact the larger the 83 * dice or numbers. This function has less of an impact the larger the
37 * difference becomes in the random numbers. IE, the effect is lessened 84 * difference becomes in the random numbers. IE, the effect is lessened
… …
44 * Roll a random number between min and max. Uses op to determine luck, 91 * Roll a random number between min and max. Uses op to determine luck,
45 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. 92 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
46 * Generally, op should be the player/caster/hitter requesting the roll, 93 * Generally, op should be the player/caster/hitter requesting the roll,
47 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 94 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
48 */ 95 */
49
50int 96int
51random_roll (int min, int max, const object *op, int goodbad) 97random_roll (int r_min, int r_max, const object *op, int goodbad)
52{ 98{
53 int omin, diff, luck, base, ran; 99 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
54 100
55 omin = min; 101 if (r_max < r_min)
56 diff = max - min + 1;
57 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
58
59 if (max < 1 || diff < 1)
60 { 102 {
61 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max); 103 LOG (llevError | logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
104 return r_min;
105 }
106
107 if (op->type == PLAYER)
108 {
109 int luck = op->stats.luck;
110
111 if (rndm (base) < min (10, abs (luck)))
112 {
113 //TODO: take luck into account
114 }
115 }
116
117 return rndm (r_min, r_max);
118}
119
120/*
121 * This is a 64 bit version of random_roll above. This is needed
122 * for exp loss calculations for players changing religions.
123 */
124sint64
125random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
126{
127 sint64 omin = min;
128 sint64 diff = max - min + 1;
129 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
130
131 if (diff < 0)
132 {
133 LOG (llevError | logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
62 return (min); /* avoids a float exception */ 134 return (min); /* avoids a float exception */
63 } 135 }
64 136
65 ran = RANDOM (); 137 /*
138 * Make a call to get two 32 bit unsigned random numbers, and just to
139 * a little bitshifting.
140 */
141 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
66 142
67 if (op->type != PLAYER) 143 if (op->type != PLAYER)
68 return ((ran % diff) + min); 144 return ((ran % diff) + min);
69 145
70 luck = op->stats.luck; 146 int luck = op->stats.luck;
147
71 if (RANDOM () % base < MIN (10, abs (luck))) 148 if (rndm (base) < MIN (10, abs (luck)))
72 { 149 {
73 /* we have a winner */ 150 /* we have a winner */
74 ((luck > 0) ? (luck = 1) : (luck = -1)); 151 ((luck > 0) ? (luck = 1) : (luck = -1));
75 diff -= luck; 152 diff -= luck;
76 if (diff < 1) 153 if (diff < 1)
77 return (omin); /*check again */ 154 return (omin); /*check again */
155
78 ((goodbad) ? (min += luck) : (diff)); 156 ((goodbad) ? (min += luck) : (diff));
79 157
80 return (MAX (omin, MIN (max, (ran % diff) + min))); 158 return (MAX (omin, MIN (max, (ran % diff) + min)));
81 } 159 }
160
82 return ((ran % diff) + min); 161 return ran % diff + min;
83}
84
85/*
86 * This is a 64 bit version of random_roll above. This is needed
87 * for exp loss calculations for players changing religions.
88 */
89
90sint64
91random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
92{
93 sint64 omin, diff, luck, ran;
94 int base;
95
96 omin = min;
97 diff = max - min + 1;
98 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
99
100 if (max < 1 || diff < 1)
101 {
102 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
103 return (min); /* avoids a float exception */
104 }
105
106 /* Don't know of a portable call to get 64 bit random values.
107 * So make a call to get two 32 bit random numbers, and just to
108 * a little byteshifting. Do make sure the first one is only
109 * 32 bit, so we don't get skewed results
110 */
111 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32);
112
113 if (op->type != PLAYER)
114 return ((ran % diff) + min);
115
116 luck = op->stats.luck;
117 if (RANDOM () % base < MIN (10, abs (luck)))
118 {
119 /* we have a winner */
120 ((luck > 0) ? (luck = 1) : (luck = -1));
121 diff -= luck;
122 if (diff < 1)
123 return (omin); /*check again */
124 ((goodbad) ? (min += luck) : (diff));
125
126 return (MAX (omin, MIN (max, (ran % diff) + min)));
127 }
128 return ((ran % diff) + min);
129} 162}
130 163
131/* 164/*
132 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 165 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
133 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 166 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
134 * Generally, op should be the player/caster/hitter requesting the roll, 167 * Generally, op should be the player/caster/hitter requesting the roll,
135 * not the recipient (ie, the poor slob getting hit). 168 * not the recipient (ie, the poor slob getting hit).
136 * The args are num D size (ie 4d6) [garbled 20010916] 169 * The args are num D size (ie 4d6) [garbled 20010916]
137 */ 170 */
138
139int 171int
140die_roll (int num, int size, const object *op, int goodbad) 172die_roll (int num, int size, const object *op, int goodbad)
141{ 173{
142 int min, diff, luck, total, i, gotlucky, base, ran; 174 int min, luck, total, i, gotlucky;
143 175
144 diff = size; 176 int diff = size;
145 min = 1; 177 min = 1;
146 luck = total = gotlucky = 0; 178 luck = total = gotlucky = 0;
147 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 179 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
180
148 if (size < 2 || diff < 1) 181 if (size < 2 || diff < 1)
149 { 182 {
150 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 183 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
151 return (num); /* avoids a float exception */ 184 return num; /* avoids a float exception */
152 } 185 }
153 186
154 if (op->type == PLAYER) 187 if (op->type == PLAYER)
155 luck = op->stats.luck; 188 luck = op->stats.luck;
156 189
157 for (i = 0; i < num; i++) 190 for (i = 0; i < num; i++)
158 { 191 {
159 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 192 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
160 { 193 {
161 /* we have a winner */ 194 /* we have a winner */
162 gotlucky++; 195 gotlucky++;
163 ((luck > 0) ? (luck = 1) : (luck = -1)); 196 ((luck > 0) ? (luck = 1) : (luck = -1));
164 diff -= luck; 197 diff -= luck;
165 if (diff < 1) 198 if (diff < 1)
166 return (num); /*check again */ 199 return (num); /*check again */
167 ((goodbad) ? (min += luck) : (diff)); 200 ((goodbad) ? (min += luck) : (diff));
168 ran = RANDOM ();
169 total += MAX (1, MIN (size, (ran % diff) + min)); 201 total += MAX (1, MIN (size, rndm (diff) + min));
170 } 202 }
171 else 203 else
172 {
173 total += RANDOM () % size + 1; 204 total += rndm (size) + 1;
174 }
175 } 205 }
206
176 return (total); 207 return total;
177}
178
179/*
180 * Another convenience function. Returns a number between min and max.
181 * It is suggested one use these functions rather than RANDOM()%, as it
182 * would appear that a number of off-by-one-errors exist due to improper
183 * use of %. This should also prevent SIGFPE.
184 */
185
186int
187rndm (int min, int max)
188{
189 int diff;
190
191 diff = max - min + 1;
192 if (max < 1 || diff < 1)
193 return (min);
194
195 return (RANDOM () % diff + min);
196}
197
198/* decay and destroy persihable items in a map */
199
200void
201decay_objects (maptile *m)
202{
203 int x, y, destroy;
204 object *op, *otmp;
205
206 if (m->unique)
207 return;
208
209 for (x = 0; x < MAP_WIDTH (m); x++)
210 for (y = 0; y < MAP_HEIGHT (m); y++)
211 for (op = get_map_ob (m, x, y); op; op = otmp)
212 {
213 destroy = 0;
214 otmp = op->above;
215 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
216 break;
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) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) || QUERY_FLAG (op, FLAG_UNPAID) || IS_LIVE (op))
221 continue;
222 /* otherwise, we decay and destroy */
223 if (IS_WEAPON (op))
224 {
225 op->stats.dam--;
226 if (op->stats.dam < 0)
227 destroy = 1;
228 }
229 else if (IS_ARMOR (op))
230 {
231 op->stats.ac--;
232 if (op->stats.ac < 0)
233 destroy = 1;
234 }
235 else if (op->type == FOOD)
236 {
237 op->stats.food -= rndm (5, 20);
238 if (op->stats.food < 0)
239 destroy = 1;
240 }
241 else
242 {
243 if (op->material & M_PAPER || op->material & M_LEATHER ||
244 op->material & M_WOOD || op->material & M_ORGANIC || op->material & M_CLOTH || op->material & M_LIQUID)
245 destroy = 1;
246 if (op->material & M_IRON && rndm (1, 5) == 1)
247 destroy = 1;
248 if (op->material & M_GLASS && rndm (1, 2) == 1)
249 destroy = 1;
250 if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1)
251 destroy = 1;
252 if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1)
253 destroy = 1;
254 if (op->material & M_ICE && MAP_TEMP (m) > 32)
255 destroy = 1;
256 }
257 /* adjust overall chance below */
258 if (destroy && rndm (0, 1))
259 op->destroy ();
260 }
261} 208}
262 209
263/* convert materialname to materialtype_t */ 210/* convert materialname to materialtype_t */
264 211
265materialtype_t * 212materialtype_t *
266name_to_material (const char *name) 213name_to_material (const shstr &name)
267{ 214{
268 materialtype_t *mt, *nmt; 215 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
216 if (name == mt->name)
217 return mt;
269 218
270 mt = NULL;
271 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
272 {
273 if (strcmp (name, nmt->name) == 0)
274 {
275 mt = nmt;
276 break;
277 }
278 }
279 return mt; 219 return 0;
280} 220}
281 221
282/* when doing transmutation of objects, we have to recheck the resistances, 222/* when doing transmutation of objects, we have to recheck the resistances,
283 * as some that did not apply previously, may apply now. 223 * as some that did not apply previously, may apply now.
284 */ 224 */
285
286void 225void
287transmute_materialname (object *op, const object *change) 226transmute_materialname (object *op, const object *change)
288{ 227{
289 materialtype_t *mt; 228 materialtype_t *mt;
290 int j; 229 int j;
… …
293 return; 232 return;
294 233
295 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 234 if (change->materialname != NULL && strcmp (op->materialname, change->materialname))
296 return; 235 return;
297 236
298 if (!IS_ARMOR (op)) 237 if (!op->is_armor ())
299 return; 238 return;
300 239
301 mt = name_to_material (op->materialname); 240 mt = name_to_material (op->materialname);
302 if (!mt) 241 if (!mt)
303 { 242 {
304 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 243 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
305 return; 244 return;
306 } 245 }
307 246
308 for (j = 0; j < NROFATTACKS; j++) 247 for (j = 0; j < NROFATTACKS; j++)
309 if (op->resist[j] == 0 && change->resist[j] != 0) 248 if (op->resist[j] == 0 && change->resist[j] != 0)
… …
320void 259void
321set_materialname (object *op, int difficulty, materialtype_t *nmt) 260set_materialname (object *op, int difficulty, materialtype_t *nmt)
322{ 261{
323 materialtype_t *mt, *lmt; 262 materialtype_t *mt, *lmt;
324 263
325#ifdef NEW_MATERIAL_CODE
326 int j;
327#endif
328
329 if (op->materialname != NULL) 264 if (op->materialname != NULL)
330 return; 265 return;
331 266
332
333
334 if (nmt == NULL) 267 if (nmt == NULL)
335 { 268 {
336 lmt = NULL; 269 lmt = NULL;
337#ifndef NEW_MATERIAL_CODE 270
338 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 271 for (mt = materialt; mt && mt->next; mt = mt->next)
339 { 272 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
340 if (op->material & mt->material) 273 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
341 { 274 {
342 lmt = mt; 275 lmt = mt;
276 if (!(op->is_weapon () || op->is_armor ()))
343 break; 277 break;
344 } 278 }
345 }
346
347#else
348 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
349 {
350 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
351 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
352 {
353 lmt = mt;
354 if (!(IS_WEAPON (op) || IS_ARMOR (op)))
355 break;
356 }
357 }
358#endif
359 } 279 }
360 else 280 else
361 {
362 lmt = nmt; 281 lmt = nmt;
363 }
364 282
365 if (lmt != NULL) 283 if (lmt != NULL)
366 { 284 {
367#ifndef NEW_MATERIAL_CODE 285 if (op->stats.dam && op->is_weapon ())
368 op->materialname = lmt->name;
369 return;
370#else
371
372 if (op->stats.dam && IS_WEAPON (op))
373 { 286 {
374 op->stats.dam += lmt->damage; 287 op->stats.dam += lmt->damage;
375 if (op->stats.dam < 1) 288 if (op->stats.dam < 1)
376 op->stats.dam = 1; 289 op->stats.dam = 1;
377 } 290 }
291
378 if (op->stats.sp && op->type == BOW) 292 if (op->stats.sp && op->type == BOW)
379 op->stats.sp += lmt->sp; 293 op->stats.sp += lmt->sp;
380 if (op->stats.wc && IS_WEAPON (op)) 294 if (op->stats.wc && op->is_weapon ())
381 op->stats.wc += lmt->wc; 295 op->stats.wc += lmt->wc;
382 if (IS_ARMOR (op)) 296 if (op->is_armor ())
383 { 297 {
384 if (op->stats.ac) 298 if (op->stats.ac)
385 op->stats.ac += lmt->ac; 299 op->stats.ac += lmt->ac;
300
386 for (j = 0; j < NROFATTACKS; j++) 301 for (int j = 0; j < NROFATTACKS; j++)
387 if (op->resist[j] != 0) 302 if (op->resist[j] != 0)
388 { 303 {
389 op->resist[j] += lmt->mod[j]; 304 op->resist[j] += lmt->mod[j];
390 if (op->resist[j] > 100) 305 if (op->resist[j] > 100)
391 op->resist[j] = 100; 306 op->resist[j] = 100;
392 if (op->resist[j] < -100) 307 if (op->resist[j] < -100)
393 op->resist[j] = -100; 308 op->resist[j] = -100;
394 } 309 }
395 } 310 }
311
396 op->materialname = add_string (lmt->name); 312 op->materialname = lmt->name;
397 /* dont make it unstackable if it doesn't need to be */ 313 /* dont make it unstackable if it doesn't need to be */
398 if (IS_WEAPON (op) || IS_ARMOR (op)) 314 if (op->is_weapon () || op->is_armor ())
399 { 315 {
400 op->weight = (op->weight * lmt->weight) / 100; 316 op->weight = (op->weight * lmt->weight) / 100;
401 op->value = (op->value * lmt->value) / 100; 317 op->value = (op->value * lmt->value) / 100;
402 } 318 }
403#endif
404 } 319 }
405} 320}
406 321
407/* 322/*
408 * Strip out the media tags from a String. 323 * Strip out the media tags from a String.
… …
503 * a 'list' for the purposes here, is a string of items, seperated by commas, except 418 * a 'list' for the purposes here, is a string of items, seperated by commas, except
504 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 419 * for the last entry, which has an 'and' before it, and a full stop (period) after it.
505 * This function will also strip all trailing non alphanumeric characters. 420 * This function will also strip all trailing non alphanumeric characters.
506 * It does not insert an oxford comma. 421 * It does not insert an oxford comma.
507 */ 422 */
508
509void 423void
510make_list_like (char *input) 424make_list_like (char *input)
511{ 425{
512 char *p, tmp[MAX_BUF]; 426 char *p, tmp[MAX_BUF];
513 int i; 427 int i;
… …
538 return; 452 return;
539} 453}
540 454
541///////////////////////////////////////////////////////////////////////////// 455/////////////////////////////////////////////////////////////////////////////
542 456
543#if 0 457void
544refcounted *refcounted::rc_first; 458fork_abort (const char *msg)
545
546refcounted::refcounted ()
547{ 459{
548 refcnt = 0; 460 if (!fork ())
549 rc_next = rc_first; 461 {
550 rc_first = this; 462 signal (SIGABRT, SIG_DFL);
551} 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 abort ();
467 }
552 468
553refcounted::~refcounted () 469 LOG (llevError, "fork abort: %s\n", msg);
554{
555 assert (!rc_next);
556 assert (!refcnt);
557} 470}
471
472void *salloc_ (int n) throw (std::bad_alloc)
473{
474#ifdef PREFER_MALLOC
475 void *ptr = malloc (n);
476#else
477 slice_alloc += n;
478 void *ptr = g_slice_alloc (n);
558#endif 479#endif
559 480
560void *alloc (int s) throw (std::bad_alloc)
561{
562 void *p = g_slice_alloc (s);
563
564 if (!p) 481 if (!ptr)
565 throw std::bad_alloc (); 482 throw std::bad_alloc ();
566 483
567 return p; 484 return ptr;
568} 485}
486
487void *salloc_ (int n, void *src) throw (std::bad_alloc)
488{
489 void *ptr = salloc_ (n);
490
491 if (src)
492 memcpy (ptr, src, n);
493 else
494 memset (ptr, 0, n);
495
496 return ptr;
497}
498
499/******************************************************************************/
500
501#ifdef DEBUG_SALLOC
502
503#define MAGIC 0xa1b2c35543deadLL
504
505void *g_slice_alloc (unsigned long size)
506{
507 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
508 *p++ = size ^ MAGIC;
509 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
510 return (void *)p;
511}
512
513void *g_slice_alloc0 (unsigned long size)
514{
515 return memset (g_slice_alloc (size), 0, size);
516}
517
518void g_slice_free1 (unsigned long size, void *ptr)
519{
520 if (expect_true (ptr))
521 {
522 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
523 unsigned long *p = (unsigned long *)ptr;
524 unsigned long s = *--p ^ MAGIC;
525
526 if (size != (unsigned long)(*p ^ MAGIC))
527 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
528
529 *p = MAGIC;
530
531 (g_slice_free1)(s + sizeof (unsigned long), p);
532 }
533}
534
535#endif
536
537/******************************************************************************/
569 538
570void assign (char *dst, const char *src, int maxlen) 539void assign (char *dst, const char *src, int maxlen)
571{ 540{
572 if (!src) 541 if (!src)
573 src = ""; 542 src = "";
… …
589 } 558 }
590 else 559 else
591 memcpy (dst, src, len + 1); 560 memcpy (dst, src, len + 1);
592} 561}
593 562
563const char *
564format (const char *format, ...)
565{
566 static dynbuf_text buf;
594 567
568 buf.clear ();
569
570 va_list ap;
571 va_start (ap, format);
572 buf.vprintf (format, ap);
573 va_end (ap);
574
575 return buf;
576}
577
578tstamp now ()
579{
580 struct timeval tv;
581
582 gettimeofday (&tv, 0);
583 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
584}
585
586int
587similar_direction (int a, int b)
588{
589 if (!a || !b)
590 return 0;
591
592 int diff = (b - a) & 7;
593 return diff <= 1 || diff >= 7;
594}
595
596/* crc32 0xdebb20e3 table and supplementary functions. */
597extern const uint32_t crc_32_tab[256] =
598{
599 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
600 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
601 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
602 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
603 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
604 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
605 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
606 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
607 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
608 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
609 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
610 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
611 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
612 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
613 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
614 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
615 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
616 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
617 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
618 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
619 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
620 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
621 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
622 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
623 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
624 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
625 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
626 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
627 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
628 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
629 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
630 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
631 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
632 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
633 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
634 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
635 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
636 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
637 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
638 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
639 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
640 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
641 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
642 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
643 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
644 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
645 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
646 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
647 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
648 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
649 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
650 0x2d02ef8dL
651};
652

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