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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.9 by root, Sun Sep 10 16:00:23 2006 UTC vs.
Revision 1.67 by root, Tue Oct 16 05:34:24 2007 UTC

1
2/* 1/*
3 * static char *rcsid_utils_c = 2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
4 * "$Id: utils.C,v 1.9 2006/09/10 16:00:23 root Exp $"; 3 *
5 */ 4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
6
7/*
8 CrossFire, A Multiplayer game for X-windows
9
10 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
11 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
12 7 *
13 This program is free software; you can redistribute it and/or modify 8 * Crossfire TRT is free software: you can redistribute it and/or modify
14 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
15 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
16 (at your option) any later version. 11 * (at your option) any later version.
17 12 *
18 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,
19 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 GNU General Public License for more details. 16 * GNU General Public License for more details.
22 17 *
23 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
24 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
25 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
26 21 * The authors can be reached via e-mail to <crossfire@schmorp.de>
27 The authors can be reached via e-mail at crossfire-devel@real-time.com
28*/ 22 */
29 23
30/* 24/*
31 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
32 */ 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>
33 34
34#include <global.h> 35#include <global.h>
35#include <funcpoint.h> 36#include <funcpoint.h>
36#include <material.h> 37#include <material.h>
37 38
38#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}
39 80
40/* 81/*
41 * The random functions here take luck into account when rolling random 82 * The random functions here take luck into account when rolling random
42 * 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
43 * difference becomes in the random numbers. IE, the effect is lessened 84 * difference becomes in the random numbers. IE, the effect is lessened
50 * 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,
51 * 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.
52 * Generally, op should be the player/caster/hitter requesting the roll, 93 * Generally, op should be the player/caster/hitter requesting the roll,
53 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 94 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
54 */ 95 */
55
56int 96int
57random_roll (int min, int max, const object *op, int goodbad) 97random_roll (int r_min, int r_max, const object *op, int goodbad)
58{ 98{
59 int omin, diff, luck, base, ran; 99 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
60 100
61 omin = min; 101 if (r_max < r_min)
62 diff = max - min + 1;
63 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
64
65 if (max < 1 || diff < 1)
66 { 102 {
67 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);
68 return (min); /* avoids a float exception */ 134 return (min); /* avoids a float exception */
69 } 135 }
70 136
71 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);
72 142
73 if (op->type != PLAYER) 143 if (op->type != PLAYER)
74 return ((ran % diff) + min); 144 return ((ran % diff) + min);
75 145
76 luck = op->stats.luck; 146 int luck = op->stats.luck;
147
77 if (RANDOM () % base < MIN (10, abs (luck))) 148 if (rndm (base) < MIN (10, abs (luck)))
78 { 149 {
79 /* we have a winner */ 150 /* we have a winner */
80 ((luck > 0) ? (luck = 1) : (luck = -1)); 151 ((luck > 0) ? (luck = 1) : (luck = -1));
81 diff -= luck; 152 diff -= luck;
82 if (diff < 1) 153 if (diff < 1)
83 return (omin); /*check again */ 154 return (omin); /*check again */
155
84 ((goodbad) ? (min += luck) : (diff)); 156 ((goodbad) ? (min += luck) : (diff));
85 157
86 return (MAX (omin, MIN (max, (ran % diff) + min))); 158 return (MAX (omin, MIN (max, (ran % diff) + min)));
87 } 159 }
160
88 return ((ran % diff) + min); 161 return ran % diff + min;
89}
90
91/*
92 * This is a 64 bit version of random_roll above. This is needed
93 * for exp loss calculations for players changing religions.
94 */
95
96sint64
97random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
98{
99 sint64 omin, diff, luck, ran;
100 int base;
101
102 omin = min;
103 diff = max - min + 1;
104 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
105
106 if (max < 1 || diff < 1)
107 {
108#ifndef WIN32
109 LOG (llevError, "Calling random_roll with min=%lld max=%lld\n", min, max);
110#else
111 LOG (llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max);
112#endif
113 return (min); /* avoids a float exception */
114 }
115
116 /* Don't know of a portable call to get 64 bit random values.
117 * So make a call to get two 32 bit random numbers, and just to
118 * a little byteshifting. Do make sure the first one is only
119 * 32 bit, so we don't get skewed results
120 */
121 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32);
122
123 if (op->type != PLAYER)
124 return ((ran % diff) + min);
125
126 luck = op->stats.luck;
127 if (RANDOM () % base < MIN (10, abs (luck)))
128 {
129 /* we have a winner */
130 ((luck > 0) ? (luck = 1) : (luck = -1));
131 diff -= luck;
132 if (diff < 1)
133 return (omin); /*check again */
134 ((goodbad) ? (min += luck) : (diff));
135
136 return (MAX (omin, MIN (max, (ran % diff) + min)));
137 }
138 return ((ran % diff) + min);
139} 162}
140 163
141/* 164/*
142 * 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,
143 * 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.
144 * Generally, op should be the player/caster/hitter requesting the roll, 167 * Generally, op should be the player/caster/hitter requesting the roll,
145 * not the recipient (ie, the poor slob getting hit). 168 * not the recipient (ie, the poor slob getting hit).
146 * The args are num D size (ie 4d6) [garbled 20010916] 169 * The args are num D size (ie 4d6) [garbled 20010916]
147 */ 170 */
148
149int 171int
150die_roll (int num, int size, const object *op, int goodbad) 172die_roll (int num, int size, const object *op, int goodbad)
151{ 173{
152 int min, diff, luck, total, i, gotlucky, base, ran; 174 int min, luck, total, i, gotlucky;
153 175
154 diff = size; 176 int diff = size;
155 min = 1; 177 min = 1;
156 luck = total = gotlucky = 0; 178 luck = total = gotlucky = 0;
157 ((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
158 if (size < 2 || diff < 1) 181 if (size < 2 || diff < 1)
159 { 182 {
160 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);
161 return (num); /* avoids a float exception */ 184 return num; /* avoids a float exception */
162 } 185 }
163 186
164 if (op->type == PLAYER) 187 if (op->type == PLAYER)
165 luck = op->stats.luck; 188 luck = op->stats.luck;
166 189
167 for (i = 0; i < num; i++) 190 for (i = 0; i < num; i++)
168 { 191 {
169 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 192 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
170 { 193 {
171 /* we have a winner */ 194 /* we have a winner */
172 gotlucky++; 195 gotlucky++;
173 ((luck > 0) ? (luck = 1) : (luck = -1)); 196 ((luck > 0) ? (luck = 1) : (luck = -1));
174 diff -= luck; 197 diff -= luck;
175 if (diff < 1) 198 if (diff < 1)
176 return (num); /*check again */ 199 return (num); /*check again */
177 ((goodbad) ? (min += luck) : (diff)); 200 ((goodbad) ? (min += luck) : (diff));
178 ran = RANDOM ();
179 total += MAX (1, MIN (size, (ran % diff) + min)); 201 total += MAX (1, MIN (size, rndm (diff) + min));
180 } 202 }
181 else 203 else
182 {
183 total += RANDOM () % size + 1; 204 total += rndm (size) + 1;
184 }
185 } 205 }
206
186 return (total); 207 return total;
187}
188
189/*
190 * Another convenience function. Returns a number between min and max.
191 * It is suggested one use these functions rather than RANDOM()%, as it
192 * would appear that a number of off-by-one-errors exist due to improper
193 * use of %. This should also prevent SIGFPE.
194 */
195
196int
197rndm (int min, int max)
198{
199 int diff;
200
201 diff = max - min + 1;
202 if (max < 1 || diff < 1)
203 return (min);
204
205 return (RANDOM () % diff + min);
206}
207
208/* decay and destroy persihable items in a map */
209
210void
211decay_objects (mapstruct *m)
212{
213 int x, y, destroy;
214 object *op, *otmp;
215
216 if (m->unique)
217 return;
218
219 for (x = 0; x < MAP_WIDTH (m); x++)
220 for (y = 0; y < MAP_HEIGHT (m); y++)
221 for (op = get_map_ob (m, x, y); op; op = otmp)
222 {
223 destroy = 0;
224 otmp = op->above;
225 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
226 break;
227 if (QUERY_FLAG (op, FLAG_IS_FLOOR) ||
228 QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) ||
229 QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) ||
230 QUERY_FLAG (op, FLAG_UNIQUE) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) || QUERY_FLAG (op, FLAG_UNPAID) || IS_LIVE (op))
231 continue;
232 /* otherwise, we decay and destroy */
233 if (IS_WEAPON (op))
234 {
235 op->stats.dam--;
236 if (op->stats.dam < 0)
237 destroy = 1;
238 }
239 else if (IS_ARMOR (op))
240 {
241 op->stats.ac--;
242 if (op->stats.ac < 0)
243 destroy = 1;
244 }
245 else if (op->type == FOOD)
246 {
247 op->stats.food -= rndm (5, 20);
248 if (op->stats.food < 0)
249 destroy = 1;
250 }
251 else
252 {
253 if (op->material & M_PAPER || op->material & M_LEATHER ||
254 op->material & M_WOOD || op->material & M_ORGANIC || op->material & M_CLOTH || op->material & M_LIQUID)
255 destroy = 1;
256 if (op->material & M_IRON && rndm (1, 5) == 1)
257 destroy = 1;
258 if (op->material & M_GLASS && rndm (1, 2) == 1)
259 destroy = 1;
260 if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1)
261 destroy = 1;
262 if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1)
263 destroy = 1;
264 if (op->material & M_ICE && MAP_TEMP (m) > 32)
265 destroy = 1;
266 }
267 /* adjust overall chance below */
268 if (destroy && rndm (0, 1))
269 {
270 remove_ob (op);
271 free_object (op);
272 }
273 }
274} 208}
275 209
276/* convert materialname to materialtype_t */ 210/* convert materialname to materialtype_t */
277 211
278materialtype_t * 212materialtype_t *
279name_to_material (const char *name) 213name_to_material (const shstr &name)
280{ 214{
281 materialtype_t *mt, *nmt; 215 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
216 if (name == mt->name)
217 return mt;
282 218
283 mt = NULL;
284 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
285 {
286 if (strcmp (name, nmt->name) == 0)
287 {
288 mt = nmt;
289 break;
290 }
291 }
292 return mt; 219 return 0;
293} 220}
294 221
295/* when doing transmutation of objects, we have to recheck the resistances, 222/* when doing transmutation of objects, we have to recheck the resistances,
296 * as some that did not apply previously, may apply now. 223 * as some that did not apply previously, may apply now.
297 */ 224 */
298
299void 225void
300transmute_materialname (object *op, const object *change) 226transmute_materialname (object *op, const object *change)
301{ 227{
302 materialtype_t *mt; 228 materialtype_t *mt;
303 int j; 229 int j;
306 return; 232 return;
307 233
308 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 234 if (change->materialname != NULL && strcmp (op->materialname, change->materialname))
309 return; 235 return;
310 236
311 if (!IS_ARMOR (op)) 237 if (!op->is_armor ())
312 return; 238 return;
313 239
314 mt = name_to_material (op->materialname); 240 mt = name_to_material (op->materialname);
315 if (!mt) 241 if (!mt)
316 { 242 {
317 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);
318 return; 244 return;
319 } 245 }
320 246
321 for (j = 0; j < NROFATTACKS; j++) 247 for (j = 0; j < NROFATTACKS; j++)
322 if (op->resist[j] == 0 && change->resist[j] != 0) 248 if (op->resist[j] == 0 && change->resist[j] != 0)
333void 259void
334set_materialname (object *op, int difficulty, materialtype_t *nmt) 260set_materialname (object *op, int difficulty, materialtype_t *nmt)
335{ 261{
336 materialtype_t *mt, *lmt; 262 materialtype_t *mt, *lmt;
337 263
338#ifdef NEW_MATERIAL_CODE
339 int j;
340#endif
341
342 if (op->materialname != NULL) 264 if (op->materialname != NULL)
343 return; 265 return;
344 266
345
346
347 if (nmt == NULL) 267 if (nmt == NULL)
348 { 268 {
349 lmt = NULL; 269 lmt = NULL;
350#ifndef NEW_MATERIAL_CODE 270
351 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 271 for (mt = materialt; mt && mt->next; mt = mt->next)
352 { 272 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
353 if (op->material & mt->material) 273 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
354 { 274 {
355 lmt = mt; 275 lmt = mt;
276 if (!(op->is_weapon () || op->is_armor ()))
356 break; 277 break;
357 } 278 }
358 }
359
360#else
361 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
362 {
363 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
364 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
365 {
366 lmt = mt;
367 if (!(IS_WEAPON (op) || IS_ARMOR (op)))
368 break;
369 }
370 }
371#endif
372 } 279 }
373 else 280 else
374 {
375 lmt = nmt; 281 lmt = nmt;
376 }
377 282
378 if (lmt != NULL) 283 if (lmt != NULL)
379 { 284 {
380#ifndef NEW_MATERIAL_CODE 285 if (op->stats.dam && op->is_weapon ())
381 op->materialname = lmt->name;
382 return;
383#else
384
385 if (op->stats.dam && IS_WEAPON (op))
386 { 286 {
387 op->stats.dam += lmt->damage; 287 op->stats.dam += lmt->damage;
388 if (op->stats.dam < 1) 288 if (op->stats.dam < 1)
389 op->stats.dam = 1; 289 op->stats.dam = 1;
390 } 290 }
291
391 if (op->stats.sp && op->type == BOW) 292 if (op->stats.sp && op->type == BOW)
392 op->stats.sp += lmt->sp; 293 op->stats.sp += lmt->sp;
393 if (op->stats.wc && IS_WEAPON (op)) 294 if (op->stats.wc && op->is_weapon ())
394 op->stats.wc += lmt->wc; 295 op->stats.wc += lmt->wc;
395 if (IS_ARMOR (op)) 296 if (op->is_armor ())
396 { 297 {
397 if (op->stats.ac) 298 if (op->stats.ac)
398 op->stats.ac += lmt->ac; 299 op->stats.ac += lmt->ac;
300
399 for (j = 0; j < NROFATTACKS; j++) 301 for (int j = 0; j < NROFATTACKS; j++)
400 if (op->resist[j] != 0) 302 if (op->resist[j] != 0)
401 { 303 {
402 op->resist[j] += lmt->mod[j]; 304 op->resist[j] += lmt->mod[j];
403 if (op->resist[j] > 100) 305 if (op->resist[j] > 100)
404 op->resist[j] = 100; 306 op->resist[j] = 100;
405 if (op->resist[j] < -100) 307 if (op->resist[j] < -100)
406 op->resist[j] = -100; 308 op->resist[j] = -100;
407 } 309 }
408 } 310 }
311
409 op->materialname = add_string (lmt->name); 312 op->materialname = lmt->name;
410 /* dont make it unstackable if it doesn't need to be */ 313 /* dont make it unstackable if it doesn't need to be */
411 if (IS_WEAPON (op) || IS_ARMOR (op)) 314 if (op->is_weapon () || op->is_armor ())
412 { 315 {
413 op->weight = (op->weight * lmt->weight) / 100; 316 op->weight = (op->weight * lmt->weight) / 100;
414 op->value = (op->value * lmt->value) / 100; 317 op->value = (op->value * lmt->value) / 100;
415 } 318 }
416#endif
417 } 319 }
418} 320}
419 321
420/* 322/*
421 * Strip out the media tags from a String. 323 * Strip out the media tags from a String.
516 * 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
517 * 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.
518 * This function will also strip all trailing non alphanumeric characters. 420 * This function will also strip all trailing non alphanumeric characters.
519 * It does not insert an oxford comma. 421 * It does not insert an oxford comma.
520 */ 422 */
521
522void 423void
523make_list_like (char *input) 424make_list_like (char *input)
524{ 425{
525 char *p, tmp[MAX_BUF]; 426 char *p, tmp[MAX_BUF];
526 int i; 427 int i;
531 432
532 strncpy (tmp, input, MAX_BUF - 5); 433 strncpy (tmp, input, MAX_BUF - 5);
533 /*trim all trailing commas, spaces etc. */ 434 /*trim all trailing commas, spaces etc. */
534 for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) 435 for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)
535 tmp[i] = '\0'; 436 tmp[i] = '\0';
437
536 strcat (tmp, "."); 438 strcat (tmp, ".");
537 439
538 p = strrchr (tmp, ','); 440 p = strrchr (tmp, ',');
539 if (p) 441 if (p)
540 { 442 {
544 strcat (input, " and"); 446 strcat (input, " and");
545 strcat (input, p); 447 strcat (input, p);
546 } 448 }
547 else 449 else
548 strcpy (input, tmp); 450 strcpy (input, tmp);
451
549 return; 452 return;
550} 453}
551 454
455/////////////////////////////////////////////////////////////////////////////
456
552void * 457void
553 zero_initialised::operator 458fork_abort (const char *msg)
554new (size_t s)
555{ 459{
556 //return calloc (1, s); 460 if (!fork ())
557 return g_slice_alloc0 (s); 461 {
558} 462 signal (SIGABRT, SIG_DFL);
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 }
559 468
560void * 469 LOG (llevError, "fork abort: %s\n", msg);
561 zero_initialised::operator
562new[] (size_t s)
563{
564 //return calloc (1, s);
565 return g_slice_alloc0 (s);
566} 470}
567 471
568void 472void *salloc_ (int n) throw (std::bad_alloc)
569 zero_initialised::operator
570delete (void *p, size_t s)
571{ 473{
572 //free (p); return; 474#ifdef PREFER_MALLOC
573 g_slice_free1 (s, p); 475 void *ptr = malloc (n);
574} 476#else
477 slice_alloc += n;
478 void *ptr = g_slice_alloc (n);
479#endif
575 480
576void 481 if (!ptr)
577 zero_initialised::operator 482 throw std::bad_alloc ();
578delete[] (void *p, size_t s) 483
579{ 484 return ptr;
580 //free (p); return;
581 g_slice_free1 (s, p);
582} 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
499void assign (char *dst, const char *src, int maxlen)
500{
501 if (!src)
502 src = "";
503
504 int len = strlen (src);
505
506 if (len >= maxlen - 1)
507 {
508 if (maxlen <= 4)
509 {
510 memset (dst, '.', maxlen - 1);
511 dst [maxlen - 1] = 0;
512 }
513 else
514 {
515 memcpy (dst, src, maxlen - 4);
516 memcpy (dst + maxlen - 4, "...", 4);
517 }
518 }
519 else
520 memcpy (dst, src, len + 1);
521}
522
523const char *
524format (const char *format, ...)
525{
526 static dynbuf_text buf;
527
528 buf.clear ();
529
530 va_list ap;
531 va_start (ap, format);
532 buf.vprintf (format, ap);
533 va_end (ap);
534
535 return buf;
536}
537
538tstamp now ()
539{
540 struct timeval tv;
541
542 gettimeofday (&tv, 0);
543 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
544}
545
546int
547similar_direction (int a, int b)
548{
549 if (!a || !b)
550 return 0;
551
552 int diff = (b - a) & 7;
553 return diff <= 1 || diff >= 7;
554}
555
556/* crc32 0xdebb20e3 table and supplementary functions. */
557extern const uint32_t crc_32_tab[256] =
558{
559 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
560 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
561 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
562 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
563 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
564 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
565 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
566 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
567 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
568 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
569 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
570 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
571 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
572 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
573 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
574 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
575 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
576 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
577 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
578 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
579 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
580 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
581 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
582 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
583 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
584 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
585 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
586 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
587 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
588 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
589 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
590 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
591 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
592 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
593 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
594 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
595 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
596 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
597 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
598 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
599 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
600 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
601 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
602 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
603 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
604 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
605 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
606 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
607 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
608 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
609 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
610 0x2d02ef8dL
611};
612

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