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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.20 by root, Mon Dec 11 21:32:16 2006 UTC vs.
Revision 1.74 by root, Fri Apr 11 21:09:52 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 (©) 2005,2006,2007,2008 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;
42ssize_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] < 128U) 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 {
260 remove_ob (op);
261 free_object (op);
262 }
263 }
264} 208}
265 209
266/* convert materialname to materialtype_t */ 210/* convert materialname to materialtype_t */
267 211
268materialtype_t * 212materialtype_t *
269name_to_material (const char *name) 213name_to_material (const shstr &name)
270{ 214{
271 materialtype_t *mt, *nmt; 215 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
216 if (name == mt->name)
217 return mt;
272 218
273 mt = NULL;
274 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
275 {
276 if (strcmp (name, nmt->name) == 0)
277 {
278 mt = nmt;
279 break;
280 }
281 }
282 return mt; 219 return 0;
283} 220}
284 221
285/* when doing transmutation of objects, we have to recheck the resistances, 222/* when doing transmutation of objects, we have to recheck the resistances,
286 * as some that did not apply previously, may apply now. 223 * as some that did not apply previously, may apply now.
287 */ 224 */
288
289void 225void
290transmute_materialname (object *op, const object *change) 226transmute_materialname (object *op, const object *change)
291{ 227{
292 materialtype_t *mt; 228 materialtype_t *mt;
293 int j; 229 int j;
… …
296 return; 232 return;
297 233
298 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 234 if (change->materialname != NULL && strcmp (op->materialname, change->materialname))
299 return; 235 return;
300 236
301 if (!IS_ARMOR (op)) 237 if (!op->is_armor ())
302 return; 238 return;
303 239
304 mt = name_to_material (op->materialname); 240 mt = name_to_material (op->materialname);
305 if (!mt) 241 if (!mt)
306 { 242 {
307 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);
308 return; 244 return;
309 } 245 }
310 246
311 for (j = 0; j < NROFATTACKS; j++) 247 for (j = 0; j < NROFATTACKS; j++)
312 if (op->resist[j] == 0 && change->resist[j] != 0) 248 if (op->resist[j] == 0 && change->resist[j] != 0)
… …
323void 259void
324set_materialname (object *op, int difficulty, materialtype_t *nmt) 260set_materialname (object *op, int difficulty, materialtype_t *nmt)
325{ 261{
326 materialtype_t *mt, *lmt; 262 materialtype_t *mt, *lmt;
327 263
328#ifdef NEW_MATERIAL_CODE
329 int j;
330#endif
331
332 if (op->materialname != NULL) 264 if (op->materialname != NULL)
333 return; 265 return;
334 266
335
336
337 if (nmt == NULL) 267 if (nmt == NULL)
338 { 268 {
339 lmt = NULL; 269 lmt = NULL;
340#ifndef NEW_MATERIAL_CODE 270
341 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 271 for (mt = materialt; mt && mt->next; mt = mt->next)
342 { 272 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
343 if (op->material & mt->material) 273 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
344 { 274 {
345 lmt = mt; 275 lmt = mt;
276 if (!(op->is_weapon () || op->is_armor ()))
346 break; 277 break;
347 } 278 }
348 }
349
350#else
351 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
352 {
353 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
354 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
355 {
356 lmt = mt;
357 if (!(IS_WEAPON (op) || IS_ARMOR (op)))
358 break;
359 }
360 }
361#endif
362 } 279 }
363 else 280 else
364 {
365 lmt = nmt; 281 lmt = nmt;
366 }
367 282
368 if (lmt != NULL) 283 if (lmt != NULL)
369 { 284 {
370#ifndef NEW_MATERIAL_CODE 285 if (op->stats.dam && op->is_weapon ())
371 op->materialname = lmt->name;
372 return;
373#else
374
375 if (op->stats.dam && IS_WEAPON (op))
376 { 286 {
377 op->stats.dam += lmt->damage; 287 op->stats.dam += lmt->damage;
378 if (op->stats.dam < 1) 288 if (op->stats.dam < 1)
379 op->stats.dam = 1; 289 op->stats.dam = 1;
380 } 290 }
291
381 if (op->stats.sp && op->type == BOW) 292 if (op->stats.sp && op->type == BOW)
382 op->stats.sp += lmt->sp; 293 op->stats.sp += lmt->sp;
383 if (op->stats.wc && IS_WEAPON (op)) 294 if (op->stats.wc && op->is_weapon ())
384 op->stats.wc += lmt->wc; 295 op->stats.wc += lmt->wc;
385 if (IS_ARMOR (op)) 296 if (op->is_armor ())
386 { 297 {
387 if (op->stats.ac) 298 if (op->stats.ac)
388 op->stats.ac += lmt->ac; 299 op->stats.ac += lmt->ac;
300
389 for (j = 0; j < NROFATTACKS; j++) 301 for (int j = 0; j < NROFATTACKS; j++)
390 if (op->resist[j] != 0) 302 if (op->resist[j] != 0)
391 { 303 {
392 op->resist[j] += lmt->mod[j]; 304 op->resist[j] += lmt->mod[j];
393 if (op->resist[j] > 100) 305 if (op->resist[j] > 100)
394 op->resist[j] = 100; 306 op->resist[j] = 100;
395 if (op->resist[j] < -100) 307 if (op->resist[j] < -100)
396 op->resist[j] = -100; 308 op->resist[j] = -100;
397 } 309 }
398 } 310 }
311
399 op->materialname = add_string (lmt->name); 312 op->materialname = lmt->name;
400 /* dont make it unstackable if it doesn't need to be */ 313 /* dont make it unstackable if it doesn't need to be */
401 if (IS_WEAPON (op) || IS_ARMOR (op)) 314 if (op->is_weapon () || op->is_armor ())
402 { 315 {
403 op->weight = (op->weight * lmt->weight) / 100; 316 op->weight = (op->weight * lmt->weight) / 100;
404 op->value = (op->value * lmt->value) / 100; 317 op->value = (op->value * lmt->value) / 100;
405 } 318 }
406#endif
407 } 319 }
408} 320}
409 321
410/* 322/*
411 * Strip out the media tags from a String. 323 * Strip out the media tags from a String.
… …
506 * 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
507 * 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.
508 * This function will also strip all trailing non alphanumeric characters. 420 * This function will also strip all trailing non alphanumeric characters.
509 * It does not insert an oxford comma. 421 * It does not insert an oxford comma.
510 */ 422 */
511
512void 423void
513make_list_like (char *input) 424make_list_like (char *input)
514{ 425{
515 char *p, tmp[MAX_BUF]; 426 char *p, tmp[MAX_BUF];
516 int i; 427 int i;
… …
541 return; 452 return;
542} 453}
543 454
544///////////////////////////////////////////////////////////////////////////// 455/////////////////////////////////////////////////////////////////////////////
545 456
546#if 0 457void
547refcounted *refcounted::rc_first; 458fork_abort (const char *msg)
548
549refcounted::refcounted ()
550{ 459{
551 refcnt = 0; 460 if (!fork ())
552 rc_next = rc_first; 461 {
553 rc_first = this; 462 signal (SIGABRT, SIG_DFL);
554} 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 }
555 468
556refcounted::~refcounted () 469 LOG (llevError, "fork abort: %s\n", msg);
557{
558 assert (!rc_next);
559 assert (!refcnt);
560} 470}
471
472void *salloc_ (int n) throw (std::bad_alloc)
473{
474 void *ptr = g_slice_alloc (n);
475
476 if (!ptr)
477 throw std::bad_alloc ();
478
479 slice_alloc += n;
480 return ptr;
481}
482
483void *salloc_ (int n, void *src) throw (std::bad_alloc)
484{
485 void *ptr = salloc_ (n);
486
487 if (src)
488 memcpy (ptr, src, n);
489 else
490 memset (ptr, 0, n);
491
492 return ptr;
493}
494
495/******************************************************************************/
496
497#if DEBUG_SALLOC
498
499#define MAGIC 0xa1b2c35543deadLL
500
501void *g_slice_alloc (unsigned long size)
502{
503 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
504 *p++ = size ^ MAGIC;
505 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
506 return (void *)p;
507}
508
509void *g_slice_alloc0 (unsigned long size)
510{
511 return memset (g_slice_alloc (size), 0, size);
512}
513
514void g_slice_free1 (unsigned long size, void *ptr)
515{
516 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
517 if (expect_true (ptr))
518 {
519 unsigned long *p = (unsigned long *)ptr;
520 unsigned long s = *--p ^ MAGIC;
521
522 if (size != (unsigned long)(*p ^ MAGIC))
523 {
524 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
525 abort ();
526 }
527
528 *p = MAGIC;
529
530 (g_slice_free1)(s + sizeof (unsigned long), p);
531 }
532}
533
561#endif 534#endif
562 535
563void *alloc (int s) throw (std::bad_alloc) 536/******************************************************************************/
564{
565 void *p = g_slice_alloc (s);
566
567 if (!p)
568 throw std::bad_alloc ();
569
570 return p;
571}
572 537
573void assign (char *dst, const char *src, int maxlen) 538void assign (char *dst, const char *src, int maxlen)
574{ 539{
575 if (!src) 540 if (!src)
576 src = ""; 541 src = "";
… …
592 } 557 }
593 else 558 else
594 memcpy (dst, src, len + 1); 559 memcpy (dst, src, len + 1);
595} 560}
596 561
562const char *
563format (const char *format, ...)
564{
565 static dynbuf_text buf;
597 566
567 buf.clear ();
568
569 va_list ap;
570 va_start (ap, format);
571 buf.vprintf (format, ap);
572 va_end (ap);
573
574 return buf;
575}
576
577tstamp now ()
578{
579 struct timeval tv;
580
581 gettimeofday (&tv, 0);
582 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
583}
584
585int
586similar_direction (int a, int b)
587{
588 if (!a || !b)
589 return 0;
590
591 int diff = (b - a) & 7;
592 return diff <= 1 || diff >= 7;
593}
594
595/* crc32 0xdebb20e3 table and supplementary functions. */
596extern const uint32_t crc_32_tab[256] =
597{
598 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
599 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
600 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
601 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
602 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
603 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
604 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
605 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
606 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
607 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
608 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
609 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
610 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
611 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
612 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
613 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
614 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
615 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
616 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
617 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
618 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
619 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
620 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
621 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
622 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
623 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
624 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
625 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
626 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
627 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
628 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
629 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
630 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
631 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
632 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
633 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
634 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
635 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
636 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
637 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
638 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
639 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
640 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
641 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
642 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
643 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
644 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
645 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
646 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
647 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
648 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
649 0x2d02ef8dL
650};
651
652void thread::start (void *(*start_routine)(void *), void *arg)
653{
654 sigset_t fullsigset, oldsigset;
655 sigfillset (&fullsigset);
656
657 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
658
659 if (pthread_create (&id, 0, start_routine, arg))
660 cleanup ("unable to create a new thread");
661
662 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
663}

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