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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.34 by root, Mon Jan 1 12:28:46 2007 UTC vs.
Revision 1.79 by root, Sat Aug 30 05:19:03 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 27
28#include <global.h> 28#include <cstdlib>
29#include <sys/types.h>
29#include <funcpoint.h> 30#include <unistd.h>
30#include <material.h>
31
32#include <sys/time.h> 31#include <sys/time.h>
33#include <time.h> 32#include <time.h>
33#include <signal.h>
34
35#include <global.h>
36#include <material.h>
37
38#include <sys/time.h>
39#include <sys/resource.h>
40
34#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}
35 82
36/* 83/*
37 * The random functions here take luck into account when rolling random 84 * The random functions here take luck into account when rolling random
38 * 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
39 * difference becomes in the random numbers. IE, the effect is lessened 86 * difference becomes in the random numbers. IE, the effect is lessened
46 * 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,
47 * 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.
48 * Generally, op should be the player/caster/hitter requesting the roll, 95 * Generally, op should be the player/caster/hitter requesting the roll,
49 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 96 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
50 */ 97 */
51
52int 98int
53random_roll (int min, int max, const object *op, int goodbad) 99random_roll (int r_min, int r_max, const object *op, int goodbad)
54{ 100{
55 int omin, diff, luck, base, ran; 101 r_max = max (r_min, r_max);
56 102
57 omin = min; 103 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
58 diff = max - min + 1;
59 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
60 104
61 if (max < 1 || diff < 1)
62 {
63 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
64 return (min); /* avoids a float exception */
65 }
66
67 ran = RANDOM ();
68
69 if (op->type != PLAYER) 105 if (op->type == PLAYER)
70 return ((ran % diff) + min); 106 {
71
72 luck = op->stats.luck; 107 int luck = op->stats.luck;
73 if (RANDOM () % base < MIN (10, abs (luck))) 108
109 if (rndm (base) < min (10, abs (luck)))
110 {
111 //TODO: take luck into account
112 }
74 { 113 }
75 /* we have a winner */
76 ((luck > 0) ? (luck = 1) : (luck = -1));
77 diff -= luck;
78 if (diff < 1)
79 return (omin); /*check again */
80 ((goodbad) ? (min += luck) : (diff));
81 114
82 return (MAX (omin, MIN (max, (ran % diff) + min))); 115 return rndm (r_min, r_max);
83 }
84 return ((ran % diff) + min);
85} 116}
86 117
87/* 118/*
88 * 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
89 * for exp loss calculations for players changing religions. 120 * for exp loss calculations for players changing religions.
90 */ 121 */
91
92sint64 122sint64
93random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 123random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
94{ 124{
95 sint64 omin, diff, luck, ran; 125 sint64 omin = r_min;
96 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 */
97 128
98 omin = min; 129 /*
99 diff = max - min + 1;
100 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
101
102 if (max < 1 || diff < 1)
103 {
104 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
105 return (min); /* avoids a float exception */
106 }
107
108 /* Don't know of a portable call to get 64 bit random values.
109 * 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
110 * a little byteshifting. Do make sure the first one is only 131 * a little bitshifting.
111 * 32 bit, so we don't get skewed results
112 */ 132 */
113 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 133 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
114 134
115 if (op->type != PLAYER) 135 if (op->type != PLAYER)
116 return ((ran % diff) + min); 136 return ((ran % range) + r_min);
117 137
118 luck = op->stats.luck; 138 int luck = op->stats.luck;
139
119 if (RANDOM () % base < MIN (10, abs (luck))) 140 if (rndm (base) < min (10, abs (luck)))
120 { 141 {
121 /* we have a winner */ 142 /* we have a winner */
122 ((luck > 0) ? (luck = 1) : (luck = -1)); 143 ((luck > 0) ? (luck = 1) : (luck = -1));
123 diff -= luck; 144 range -= luck;
124 if (diff < 1) 145 if (range < 1)
125 return (omin); /*check again */ 146 return (omin); /*check again */
147
126 ((goodbad) ? (min += luck) : (diff)); 148 ((goodbad) ? (r_min += luck) : (range));
127 149
128 return (MAX (omin, MIN (max, (ran % diff) + min))); 150 return (max (omin, min (r_max, (ran % range) + r_min)));
129 } 151 }
130 return ((ran % diff) + min); 152
153 return ran % range + r_min;
131} 154}
132 155
133/* 156/*
134 * 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,
135 * 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.
136 * Generally, op should be the player/caster/hitter requesting the roll, 159 * Generally, op should be the player/caster/hitter requesting the roll,
137 * not the recipient (ie, the poor slob getting hit). 160 * not the recipient (ie, the poor slob getting hit).
138 * The args are num D size (ie 4d6) [garbled 20010916] 161 * The args are num D size (ie 4d6) [garbled 20010916]
139 */ 162 */
140
141int 163int
142die_roll (int num, int size, const object *op, int goodbad) 164die_roll (int num, int size, const object *op, int goodbad)
143{ 165{
144 int min, diff, luck, total, i, gotlucky, base, ran; 166 int min, luck, total, i, gotlucky;
145 167
146 diff = size; 168 int diff = size;
147 min = 1; 169 min = 1;
148 luck = total = gotlucky = 0; 170 luck = total = gotlucky = 0;
149 ((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
150 if (size < 2 || diff < 1) 173 if (size < 2 || diff < 1)
151 { 174 {
152 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);
153 return (num); /* avoids a float exception */ 176 return num; /* avoids a float exception */
154 } 177 }
155 178
156 if (op->type == PLAYER) 179 if (op->type == PLAYER)
157 luck = op->stats.luck; 180 luck = op->stats.luck;
158 181
159 for (i = 0; i < num; i++) 182 for (i = 0; i < num; i++)
160 { 183 {
161 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 184 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
162 { 185 {
163 /* we have a winner */ 186 /* we have a winner */
164 gotlucky++; 187 gotlucky++;
165 ((luck > 0) ? (luck = 1) : (luck = -1)); 188 ((luck > 0) ? (luck = 1) : (luck = -1));
166 diff -= luck; 189 diff -= luck;
167 if (diff < 1) 190 if (diff < 1)
168 return (num); /*check again */ 191 return (num); /*check again */
169 ((goodbad) ? (min += luck) : (diff)); 192 ((goodbad) ? (min += luck) : (diff));
170 ran = RANDOM ();
171 total += MAX (1, MIN (size, (ran % diff) + min)); 193 total += MAX (1, MIN (size, rndm (diff) + min));
172 } 194 }
173 else 195 else
174 {
175 total += RANDOM () % size + 1; 196 total += rndm (size) + 1;
176 }
177 } 197 }
198
178 return (total); 199 return total;
179}
180
181/*
182 * Another convenience function. Returns a number between min and max.
183 * It is suggested one use these functions rather than RANDOM()%, as it
184 * would appear that a number of off-by-one-errors exist due to improper
185 * use of %. This should also prevent SIGFPE.
186 */
187
188int
189rndm (int min, int max)
190{
191 int diff;
192
193 diff = max - min + 1;
194 if (max < 1 || diff < 1)
195 return (min);
196
197 return (RANDOM () % diff + min);
198}
199
200/* decay and destroy perishable items in a map */
201void
202maptile::decay_objects ()
203{
204 for (int x = 0; x < width; x++)
205 for (int y = 0; y < height; y++)
206 for (object *above = 0, *op = at (x, y).bot; op; op = above)
207 {
208 bool destroy = 0;
209
210 above = op->above;
211
212 // do not decay anything above unique floor tiles (yet :)
213 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
214 break;
215
216 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
217 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
218 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
219 || QUERY_FLAG (op, FLAG_UNIQUE)
220 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
221 || QUERY_FLAG (op, FLAG_UNPAID)
222 || op->is_alive ())
223 ; // do not decay
224 else if (op->is_weapon ())
225 {
226 op->stats.dam--;
227 if (op->stats.dam < 0)
228 destroy = 1;
229 }
230 else if (op->is_armor ())
231 {
232 op->stats.ac--;
233 if (op->stats.ac < 0)
234 destroy = 1;
235 }
236 else if (op->type == FOOD)
237 {
238 op->stats.food -= rndm (5, 20);
239 if (op->stats.food < 0)
240 destroy = 1;
241 }
242 else
243 {
244 int mat = op->material;
245
246 if (mat & M_PAPER
247 || mat & M_LEATHER
248 || mat & M_WOOD
249 || mat & M_ORGANIC
250 || mat & M_CLOTH
251 || mat & M_LIQUID
252 || (mat & M_IRON && rndm (1, 5) == 1)
253 || (mat & M_GLASS && rndm (1, 2) == 1)
254 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
255 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
256 || (mat & M_ICE && temp > 32))
257 destroy = 1;
258 }
259
260 /* adjust overall chance below */
261 if (destroy && rndm (0, 1))
262 op->destroy ();
263 }
264} 200}
265 201
266/* convert materialname to materialtype_t */ 202/* convert materialname to materialtype_t */
267 203
268materialtype_t * 204materialtype_t *
269name_to_material (const char *name) 205name_to_material (const shstr &name)
270{ 206{
271 materialtype_t *mt, *nmt; 207 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
208 if (name == mt->name)
209 return mt;
272 210
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; 211 return 0;
283} 212}
284 213
285/* when doing transmutation of objects, we have to recheck the resistances, 214/* when doing transmutation of objects, we have to recheck the resistances,
286 * as some that did not apply previously, may apply now. 215 * as some that did not apply previously, may apply now.
287 */ 216 */
288
289void 217void
290transmute_materialname (object *op, const object *change) 218transmute_materialname (object *op, const object *change)
291{ 219{
292 materialtype_t *mt; 220 materialtype_t *mt;
293 int j; 221 int j;
302 return; 230 return;
303 231
304 mt = name_to_material (op->materialname); 232 mt = name_to_material (op->materialname);
305 if (!mt) 233 if (!mt)
306 { 234 {
307 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);
308 return; 236 return;
309 } 237 }
310 238
311 for (j = 0; j < NROFATTACKS; j++) 239 for (j = 0; j < NROFATTACKS; j++)
312 if (op->resist[j] == 0 && change->resist[j] != 0) 240 if (op->resist[j] == 0 && change->resist[j] != 0)
323void 251void
324set_materialname (object *op, int difficulty, materialtype_t *nmt) 252set_materialname (object *op, int difficulty, materialtype_t *nmt)
325{ 253{
326 materialtype_t *mt, *lmt; 254 materialtype_t *mt, *lmt;
327 255
328#ifdef NEW_MATERIAL_CODE
329 int j;
330#endif
331
332 if (op->materialname != NULL) 256 if (op->materialname != NULL)
333 return; 257 return;
334 258
335
336
337 if (nmt == NULL) 259 if (nmt == NULL)
338 { 260 {
339 lmt = NULL; 261 lmt = NULL;
340#ifndef NEW_MATERIAL_CODE 262
341 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 263 for (mt = materialt; mt && mt->next; mt = mt->next)
342 { 264 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
343 if (op->material & mt->material) 265 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
344 { 266 {
345 lmt = mt; 267 lmt = mt;
268 if (!(op->is_weapon () || op->is_armor ()))
346 break; 269 break;
347 } 270 }
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 (!(op->is_weapon () || op->is_armor ()))
358 break;
359 }
360 }
361#endif
362 } 271 }
363 else 272 else
364 {
365 lmt = nmt; 273 lmt = nmt;
366 }
367 274
368 if (lmt != NULL) 275 if (lmt != NULL)
369 { 276 {
370#ifndef NEW_MATERIAL_CODE
371 op->materialname = lmt->name;
372 return;
373#else
374
375 if (op->stats.dam && op->is_weapon ()) 277 if (op->stats.dam && op->is_weapon ())
376 { 278 {
377 op->stats.dam += lmt->damage; 279 op->stats.dam += lmt->damage;
378 if (op->stats.dam < 1) 280 if (op->stats.dam < 1)
379 op->stats.dam = 1; 281 op->stats.dam = 1;
380 } 282 }
283
381 if (op->stats.sp && op->type == BOW) 284 if (op->stats.sp && op->type == BOW)
382 op->stats.sp += lmt->sp; 285 op->stats.sp += lmt->sp;
383 if (op->stats.wc && op->is_weapon ()) 286 if (op->stats.wc && op->is_weapon ())
384 op->stats.wc += lmt->wc; 287 op->stats.wc += lmt->wc;
385 if (op->is_armor ()) 288 if (op->is_armor ())
386 { 289 {
387 if (op->stats.ac) 290 if (op->stats.ac)
388 op->stats.ac += lmt->ac; 291 op->stats.ac += lmt->ac;
292
389 for (j = 0; j < NROFATTACKS; j++) 293 for (int j = 0; j < NROFATTACKS; j++)
390 if (op->resist[j] != 0) 294 if (op->resist[j] != 0)
391 { 295 {
392 op->resist[j] += lmt->mod[j]; 296 op->resist[j] += lmt->mod[j];
393 if (op->resist[j] > 100) 297 if (op->resist[j] > 100)
394 op->resist[j] = 100; 298 op->resist[j] = 100;
395 if (op->resist[j] < -100) 299 if (op->resist[j] < -100)
396 op->resist[j] = -100; 300 op->resist[j] = -100;
397 } 301 }
398 } 302 }
303
399 op->materialname = add_string (lmt->name); 304 op->materialname = lmt->name;
400 /* dont make it unstackable if it doesn't need to be */ 305 /* dont make it unstackable if it doesn't need to be */
401 if (op->is_weapon () || op->is_armor ()) 306 if (op->is_weapon () || op->is_armor ())
402 { 307 {
403 op->weight = (op->weight * lmt->weight) / 100; 308 op->weight = (op->weight * lmt->weight) / 100;
404 op->value = (op->value * lmt->value) / 100; 309 op->value = (op->value * lmt->value) / 100;
405 } 310 }
406#endif
407 } 311 }
408} 312}
409 313
410/* 314/*
411 * Strip out the media tags from a String. 315 * Strip out the media tags from a String.
506 * 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
507 * 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.
508 * This function will also strip all trailing non alphanumeric characters. 412 * This function will also strip all trailing non alphanumeric characters.
509 * It does not insert an oxford comma. 413 * It does not insert an oxford comma.
510 */ 414 */
511
512void 415void
513make_list_like (char *input) 416make_list_like (char *input)
514{ 417{
515 char *p, tmp[MAX_BUF]; 418 char *p, tmp[MAX_BUF];
516 int i; 419 int i;
541 return; 444 return;
542} 445}
543 446
544///////////////////////////////////////////////////////////////////////////// 447/////////////////////////////////////////////////////////////////////////////
545 448
449void
450fork_abort (const char *msg)
451{
452 if (!fork ())
453 {
454 signal (SIGABRT, SIG_DFL);
455
456 // try to put corefiles into a subdirectory, if existing, to allow
457 // an administrator to reduce the I/O load.
458 chdir ("cores");
459
460 // try to detach us from as many external dependencies as possible
461 // as coredumping can take time by closing all fd's.
462 {
463 struct rlimit lim;
464
465 if (getrlimit (RLIMIT_NOFILE, &lim))
466 lim.rlim_cur = 1024;
467
468 for (int i = 0; i < lim.rlim_cur; ++i)
469 close (i);
470 }
471
472 abort ();
473 }
474
475 LOG (llevError, "fork abort: %s\n", msg);
476}
477
546void *salloc_ (int n) throw (std::bad_alloc) 478void *salloc_ (int n) throw (std::bad_alloc)
547{ 479{
548 void *ptr = g_slice_alloc (n); 480 void *ptr = g_slice_alloc (n);
549 481
550 if (!ptr) 482 if (!ptr)
551 throw std::bad_alloc (); 483 throw std::bad_alloc ();
552 484
485 slice_alloc += n;
553 return ptr; 486 return ptr;
554} 487}
555 488
556void *salloc_ (int n, void *src) throw (std::bad_alloc) 489void *salloc_ (int n, void *src) throw (std::bad_alloc)
557{ 490{
563 memset (ptr, 0, n); 496 memset (ptr, 0, n);
564 497
565 return ptr; 498 return ptr;
566} 499}
567 500
501/******************************************************************************/
502
503#if DEBUG_SALLOC
504
505#define MAGIC 0xa1b2c35543deadLL
506
507void *g_slice_alloc (unsigned long size)
508{
509 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
510 *p++ = size ^ MAGIC;
511 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
512 return (void *)p;
513}
514
515void *g_slice_alloc0 (unsigned long size)
516{
517 return memset (g_slice_alloc (size), 0, size);
518}
519
520void g_slice_free1 (unsigned long size, void *ptr)
521{
522 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
523 if (expect_true (ptr))
524 {
525 unsigned long *p = (unsigned long *)ptr;
526 unsigned long s = *--p ^ MAGIC;
527
528 if (size != (unsigned long)(*p ^ MAGIC))
529 {
530 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
531 abort ();
532 }
533
534 *p = MAGIC;
535
536 (g_slice_free1)(s + sizeof (unsigned long), p);
537 }
538}
539
540#endif
541
542/******************************************************************************/
543
568void assign (char *dst, const char *src, int maxlen) 544void assign (char *dst, const char *src, int maxlen)
569{ 545{
570 if (!src) 546 if (!src)
571 src = ""; 547 src = "";
572 548
587 } 563 }
588 else 564 else
589 memcpy (dst, src, len + 1); 565 memcpy (dst, src, len + 1);
590} 566}
591 567
568const char *
569format (const char *format, ...)
570{
571 static dynbuf_text buf;
572
573 buf.clear ();
574
575 va_list ap;
576 va_start (ap, format);
577 buf.vprintf (format, ap);
578 va_end (ap);
579
580 return buf;
581}
582
592tstamp now () 583tstamp now ()
593{ 584{
594 struct timeval tv; 585 struct timeval tv;
595 586
596 gettimeofday (&tv, 0); 587 gettimeofday (&tv, 0);
605 596
606 int diff = (b - a) & 7; 597 int diff = (b - a) & 7;
607 return diff <= 1 || diff >= 7; 598 return diff <= 1 || diff >= 7;
608} 599}
609 600
601/* crc32 0xdebb20e3 table and supplementary functions. */
602extern const uint32_t crc_32_tab[256] =
603{
604 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
605 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
606 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
607 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
608 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
609 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
610 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
611 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
612 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
613 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
614 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
615 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
616 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
617 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
618 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
619 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
620 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
621 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
622 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
623 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
624 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
625 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
626 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
627 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
628 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
629 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
630 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
631 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
632 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
633 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
634 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
635 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
636 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
637 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
638 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
639 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
640 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
641 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
642 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
643 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
644 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
645 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
646 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
647 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
648 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
649 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
650 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
651 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
652 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
653 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
654 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
655 0x2d02ef8dL
656};
657
658void thread::start (void *(*start_routine)(void *), void *arg)
659{
660 pthread_attr_t attr;
661
662 pthread_attr_init (&attr);
663 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
664 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
665 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
666#ifdef PTHREAD_SCOPE_PROCESS
667 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
668#endif
669
670 sigset_t fullsigset, oldsigset;
671 sigfillset (&fullsigset);
672
673 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
674
675 if (pthread_create (&id, &attr, start_routine, arg))
676 cleanup ("unable to create a new thread");
677
678 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
679}
680

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