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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.35 by root, Mon Jan 1 13:31:46 2007 UTC vs.
Revision 1.82 by root, Thu Sep 11 12:43:17 2008 UTC

1/* 1/*
2 CrossFire, A Multiplayer game for X-windows 2 * This file is part of Deliantra, the Roguelike Realtime MMORPG.
3 3 *
4 * Copyright (©) 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 if (!spaces)
205 return;
206
207 for (mapspace *ms = spaces + size (); ms-- > spaces; )
208 for (object *above, *op = ms->bot; op; op = above)
209 {
210 above = op->above;
211
212 bool destroy = 0;
213
214 // do not decay anything above unique floor tiles (yet :)
215 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
216 break;
217
218 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
219 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
220 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
221 || QUERY_FLAG (op, FLAG_UNIQUE)
222 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
223 || QUERY_FLAG (op, FLAG_UNPAID)
224 || op->is_alive ())
225 ; // do not decay
226 else if (op->is_weapon ())
227 {
228 op->stats.dam--;
229 if (op->stats.dam < 0)
230 destroy = 1;
231 }
232 else if (op->is_armor ())
233 {
234 op->stats.ac--;
235 if (op->stats.ac < 0)
236 destroy = 1;
237 }
238 else if (op->type == FOOD)
239 {
240 op->stats.food -= rndm (5, 20);
241 if (op->stats.food < 0)
242 destroy = 1;
243 }
244 else
245 {
246 int mat = op->material;
247
248 if (mat & M_PAPER
249 || mat & M_LEATHER
250 || mat & M_WOOD
251 || mat & M_ORGANIC
252 || mat & M_CLOTH
253 || mat & M_LIQUID
254 || (mat & M_IRON && rndm (1, 5) == 1)
255 || (mat & M_GLASS && rndm (1, 2) == 1)
256 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
257 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
258 || (mat & M_ICE && temp > 32))
259 destroy = 1;
260 }
261
262 /* adjust overall chance below */
263 if (destroy && rndm (0, 1))
264 op->destroy ();
265 }
266} 200}
267 201
268/* convert materialname to materialtype_t */ 202/* convert materialname to materialtype_t */
269 203
270materialtype_t * 204materialtype_t *
271name_to_material (const char *name) 205name_to_material (const shstr &name)
272{ 206{
273 materialtype_t *mt, *nmt; 207 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
208 if (name == mt->name)
209 return mt;
274 210
275 mt = NULL;
276 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
277 {
278 if (strcmp (name, nmt->name) == 0)
279 {
280 mt = nmt;
281 break;
282 }
283 }
284 return mt; 211 return 0;
285} 212}
286 213
287/* when doing transmutation of objects, we have to recheck the resistances, 214/* when doing transmutation of objects, we have to recheck the resistances,
288 * as some that did not apply previously, may apply now. 215 * as some that did not apply previously, may apply now.
289 */ 216 */
290
291void 217void
292transmute_materialname (object *op, const object *change) 218transmute_materialname (object *op, const object *change)
293{ 219{
294 materialtype_t *mt; 220 materialtype_t *mt;
295 int j; 221 int j;
304 return; 230 return;
305 231
306 mt = name_to_material (op->materialname); 232 mt = name_to_material (op->materialname);
307 if (!mt) 233 if (!mt)
308 { 234 {
309 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);
310 return; 236 return;
311 } 237 }
312 238
313 for (j = 0; j < NROFATTACKS; j++) 239 for (j = 0; j < NROFATTACKS; j++)
314 if (op->resist[j] == 0 && change->resist[j] != 0) 240 if (op->resist[j] == 0 && change->resist[j] != 0)
325void 251void
326set_materialname (object *op, int difficulty, materialtype_t *nmt) 252set_materialname (object *op, int difficulty, materialtype_t *nmt)
327{ 253{
328 materialtype_t *mt, *lmt; 254 materialtype_t *mt, *lmt;
329 255
330#ifdef NEW_MATERIAL_CODE
331 int j;
332#endif
333
334 if (op->materialname != NULL) 256 if (op->materialname != NULL)
335 return; 257 return;
336 258
337
338
339 if (nmt == NULL) 259 if (nmt == NULL)
340 { 260 {
341 lmt = NULL; 261 lmt = NULL;
342#ifndef NEW_MATERIAL_CODE 262
343 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 263 for (mt = materialt; mt && mt->next; mt = mt->next)
344 { 264 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
345 if (op->material & mt->material) 265 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
346 { 266 {
347 lmt = mt; 267 lmt = mt;
268 if (!(op->is_weapon () || op->is_armor ()))
348 break; 269 break;
349 } 270 }
350 }
351
352#else
353 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
354 {
355 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
356 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
357 {
358 lmt = mt;
359 if (!(op->is_weapon () || op->is_armor ()))
360 break;
361 }
362 }
363#endif
364 } 271 }
365 else 272 else
366 {
367 lmt = nmt; 273 lmt = nmt;
368 }
369 274
370 if (lmt != NULL) 275 if (lmt != NULL)
371 { 276 {
372#ifndef NEW_MATERIAL_CODE
373 op->materialname = lmt->name;
374 return;
375#else
376
377 if (op->stats.dam && op->is_weapon ()) 277 if (op->stats.dam && op->is_weapon ())
378 { 278 {
379 op->stats.dam += lmt->damage; 279 op->stats.dam += lmt->damage;
380 if (op->stats.dam < 1) 280 if (op->stats.dam < 1)
381 op->stats.dam = 1; 281 op->stats.dam = 1;
382 } 282 }
283
383 if (op->stats.sp && op->type == BOW) 284 if (op->stats.sp && op->type == BOW)
384 op->stats.sp += lmt->sp; 285 op->stats.sp += lmt->sp;
385 if (op->stats.wc && op->is_weapon ()) 286 if (op->stats.wc && op->is_weapon ())
386 op->stats.wc += lmt->wc; 287 op->stats.wc += lmt->wc;
387 if (op->is_armor ()) 288 if (op->is_armor ())
388 { 289 {
389 if (op->stats.ac) 290 if (op->stats.ac)
390 op->stats.ac += lmt->ac; 291 op->stats.ac += lmt->ac;
292
391 for (j = 0; j < NROFATTACKS; j++) 293 for (int j = 0; j < NROFATTACKS; j++)
392 if (op->resist[j] != 0) 294 if (op->resist[j] != 0)
393 { 295 {
394 op->resist[j] += lmt->mod[j]; 296 op->resist[j] += lmt->mod[j];
395 if (op->resist[j] > 100) 297 if (op->resist[j] > 100)
396 op->resist[j] = 100; 298 op->resist[j] = 100;
397 if (op->resist[j] < -100) 299 if (op->resist[j] < -100)
398 op->resist[j] = -100; 300 op->resist[j] = -100;
399 } 301 }
400 } 302 }
303
401 op->materialname = add_string (lmt->name); 304 op->materialname = lmt->name;
402 /* dont make it unstackable if it doesn't need to be */ 305 /* dont make it unstackable if it doesn't need to be */
403 if (op->is_weapon () || op->is_armor ()) 306 if (op->is_weapon () || op->is_armor ())
404 { 307 {
405 op->weight = (op->weight * lmt->weight) / 100; 308 op->weight = (op->weight * lmt->weight) / 100;
406 op->value = (op->value * lmt->value) / 100; 309 op->value = (op->value * lmt->value) / 100;
407 } 310 }
408#endif
409 } 311 }
410} 312}
411 313
412/* 314/*
413 * Strip out the media tags from a String. 315 * Strip out the media tags from a String.
508 * 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
509 * 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.
510 * This function will also strip all trailing non alphanumeric characters. 412 * This function will also strip all trailing non alphanumeric characters.
511 * It does not insert an oxford comma. 413 * It does not insert an oxford comma.
512 */ 414 */
513
514void 415void
515make_list_like (char *input) 416make_list_like (char *input)
516{ 417{
517 char *p, tmp[MAX_BUF]; 418 char *p, tmp[MAX_BUF];
518 int i; 419 int i;
543 return; 444 return;
544} 445}
545 446
546///////////////////////////////////////////////////////////////////////////// 447/////////////////////////////////////////////////////////////////////////////
547 448
449void
450fork_abort (const char *msg)
451{
452 if (!fork ())
453 {
454 signal (SIGINT , SIG_IGN);
455 signal (SIGTERM, SIG_IGN);
456 signal (SIGABRT, SIG_IGN);
457
458 signal (SIGSEGV, SIG_DFL);
459 signal (SIGBUS , SIG_DFL);
460 signal (SIGILL , SIG_DFL);
461 signal (SIGTRAP, SIG_DFL);
462
463 // try to put corefiles into a subdirectory, if existing, to allow
464 // an administrator to reduce the I/O load.
465 chdir ("cores");
466
467 // try to detach us from as many external dependencies as possible
468 // as coredumping can take time by closing all fd's.
469 {
470 struct rlimit lim;
471
472 if (getrlimit (RLIMIT_NOFILE, &lim))
473 lim.rlim_cur = 1024;
474
475 for (int i = 0; i < lim.rlim_cur; ++i)
476 close (i);
477 }
478
479 {
480 sigset_t empty;
481 sigemptyset (&empty);
482 sigprocmask (SIG_SETMASK, &empty, 0);
483 }
484
485 // try to coredump with SIGTRAP
486 kill (getpid (), SIGTRAP);
487 abort ();
488 }
489
490 LOG (llevError, "fork abort: %s\n", msg);
491}
492
548void *salloc_ (int n) throw (std::bad_alloc) 493void *salloc_ (int n) throw (std::bad_alloc)
549{ 494{
550 void *ptr = g_slice_alloc (n); 495 void *ptr = g_slice_alloc (n);
551 496
552 if (!ptr) 497 if (!ptr)
553 throw std::bad_alloc (); 498 throw std::bad_alloc ();
554 499
500 slice_alloc += n;
555 return ptr; 501 return ptr;
556} 502}
557 503
558void *salloc_ (int n, void *src) throw (std::bad_alloc) 504void *salloc_ (int n, void *src) throw (std::bad_alloc)
559{ 505{
565 memset (ptr, 0, n); 511 memset (ptr, 0, n);
566 512
567 return ptr; 513 return ptr;
568} 514}
569 515
516/******************************************************************************/
517
518#if DEBUG_SALLOC
519
520#define MAGIC 0xa1b2c35543deadLL
521
522void *g_slice_alloc (unsigned long size)
523{
524 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
525 *p++ = size ^ MAGIC;
526 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
527 return (void *)p;
528}
529
530void *g_slice_alloc0 (unsigned long size)
531{
532 return memset (g_slice_alloc (size), 0, size);
533}
534
535void g_slice_free1 (unsigned long size, void *ptr)
536{
537 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
538 if (expect_true (ptr))
539 {
540 unsigned long *p = (unsigned long *)ptr;
541 unsigned long s = *--p ^ MAGIC;
542
543 if (size != (unsigned long)(*p ^ MAGIC))
544 {
545 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
546 abort ();
547 }
548
549 *p = MAGIC;
550
551 (g_slice_free1)(s + sizeof (unsigned long), p);
552 }
553}
554
555#endif
556
557/******************************************************************************/
558
570void assign (char *dst, const char *src, int maxlen) 559void assign (char *dst, const char *src, int maxlen)
571{ 560{
572 if (!src) 561 if (!src)
573 src = ""; 562 src = "";
574 563
589 } 578 }
590 else 579 else
591 memcpy (dst, src, len + 1); 580 memcpy (dst, src, len + 1);
592} 581}
593 582
583const char *
584format (const char *format, ...)
585{
586 static dynbuf_text buf;
587
588 buf.clear ();
589
590 va_list ap;
591 va_start (ap, format);
592 buf.vprintf (format, ap);
593 va_end (ap);
594
595 return buf;
596}
597
594tstamp now () 598tstamp now ()
595{ 599{
596 struct timeval tv; 600 struct timeval tv;
597 601
598 gettimeofday (&tv, 0); 602 gettimeofday (&tv, 0);
607 611
608 int diff = (b - a) & 7; 612 int diff = (b - a) & 7;
609 return diff <= 1 || diff >= 7; 613 return diff <= 1 || diff >= 7;
610} 614}
611 615
616/* crc32 0xdebb20e3 table and supplementary functions. */
617extern const uint32_t crc_32_tab[256] =
618{
619 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
620 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
621 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
622 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
623 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
624 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
625 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
626 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
627 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
628 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
629 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
630 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
631 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
632 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
633 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
634 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
635 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
636 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
637 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
638 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
639 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
640 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
641 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
642 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
643 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
644 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
645 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
646 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
647 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
648 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
649 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
650 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
651 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
652 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
653 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
654 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
655 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
656 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
657 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
658 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
659 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
660 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
661 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
662 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
663 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
664 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
665 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
666 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
667 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
668 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
669 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
670 0x2d02ef8dL
671};
672
673void thread::start (void *(*start_routine)(void *), void *arg)
674{
675 pthread_attr_t attr;
676
677 pthread_attr_init (&attr);
678 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
679 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
680 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
681#ifdef PTHREAD_SCOPE_PROCESS
682 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
683#endif
684
685 sigset_t fullsigset, oldsigset;
686 sigfillset (&fullsigset);
687
688 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
689
690 if (pthread_create (&id, &attr, start_routine, arg))
691 cleanup ("unable to create a new thread");
692
693 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
694}
695

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