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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.36 by pippijn, Sat Jan 6 14:42:29 2007 UTC vs.
Revision 1.81 by root, Wed Sep 10 21:29:39 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 (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team 4 * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
7 7 *
8 This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify
9 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
10 the Free Software Foundation; either version 2 of the License, or 10 * the Free Software Foundation, either version 3 of the License, or
11 (at your option) any later version. 11 * (at your option) any later version.
12 12 *
13 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,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details. 16 * GNU General Public License for more details.
17 17 *
18 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
19 along with this program; if not, write to the Free Software 19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
20 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 *
21 21 * The authors can be reached via e-mail to <support@deliantra.net>
22 The authors can be reached via e-mail at <crossfire@schmorp.de>
23*/ 22 */
24 23
25/* 24/*
26 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
27 */ 26 */
28 27
29#include <global.h> 28#include <cstdlib>
29#include <sys/types.h>
30#include <funcpoint.h> 30#include <unistd.h>
31#include <material.h>
32
33#include <sys/time.h> 31#include <sys/time.h>
34#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
35#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}
36 82
37/* 83/*
38 * The random functions here take luck into account when rolling random 84 * The random functions here take luck into account when rolling random
39 * 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
40 * difference becomes in the random numbers. IE, the effect is lessened 86 * difference becomes in the random numbers. IE, the effect is lessened
47 * 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,
48 * 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.
49 * Generally, op should be the player/caster/hitter requesting the roll, 95 * Generally, op should be the player/caster/hitter requesting the roll,
50 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 96 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
51 */ 97 */
52
53int 98int
54random_roll (int min, int max, const object *op, int goodbad) 99random_roll (int r_min, int r_max, const object *op, int goodbad)
55{ 100{
56 int omin, diff, luck, base, ran; 101 r_max = max (r_min, r_max);
57 102
58 omin = min; 103 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
59 diff = max - min + 1;
60 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
61 104
62 if (max < 1 || diff < 1)
63 {
64 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
65 return (min); /* avoids a float exception */
66 }
67
68 ran = RANDOM ();
69
70 if (op->type != PLAYER) 105 if (op->type == PLAYER)
71 return ((ran % diff) + min); 106 {
72
73 luck = op->stats.luck; 107 int luck = op->stats.luck;
74 if (RANDOM () % base < MIN (10, abs (luck))) 108
109 if (rndm (base) < min (10, abs (luck)))
110 {
111 //TODO: take luck into account
112 }
75 { 113 }
76 /* we have a winner */
77 ((luck > 0) ? (luck = 1) : (luck = -1));
78 diff -= luck;
79 if (diff < 1)
80 return (omin); /*check again */
81 ((goodbad) ? (min += luck) : (diff));
82 114
83 return (MAX (omin, MIN (max, (ran % diff) + min))); 115 return rndm (r_min, r_max);
84 }
85 return ((ran % diff) + min);
86} 116}
87 117
88/* 118/*
89 * 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
90 * for exp loss calculations for players changing religions. 120 * for exp loss calculations for players changing religions.
91 */ 121 */
92
93sint64 122sint64
94random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 123random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
95{ 124{
96 sint64 omin, diff, luck, ran; 125 sint64 omin = r_min;
97 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 */
98 128
99 omin = min; 129 /*
100 diff = max - min + 1;
101 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
102
103 if (max < 1 || diff < 1)
104 {
105 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
106 return (min); /* avoids a float exception */
107 }
108
109 /* Don't know of a portable call to get 64 bit random values.
110 * 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
111 * a little byteshifting. Do make sure the first one is only 131 * a little bitshifting.
112 * 32 bit, so we don't get skewed results
113 */ 132 */
114 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 133 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
115 134
116 if (op->type != PLAYER) 135 if (op->type != PLAYER)
117 return ((ran % diff) + min); 136 return ((ran % range) + r_min);
118 137
119 luck = op->stats.luck; 138 int luck = op->stats.luck;
139
120 if (RANDOM () % base < MIN (10, abs (luck))) 140 if (rndm (base) < min (10, abs (luck)))
121 { 141 {
122 /* we have a winner */ 142 /* we have a winner */
123 ((luck > 0) ? (luck = 1) : (luck = -1)); 143 ((luck > 0) ? (luck = 1) : (luck = -1));
124 diff -= luck; 144 range -= luck;
125 if (diff < 1) 145 if (range < 1)
126 return (omin); /*check again */ 146 return (omin); /*check again */
147
127 ((goodbad) ? (min += luck) : (diff)); 148 ((goodbad) ? (r_min += luck) : (range));
128 149
129 return (MAX (omin, MIN (max, (ran % diff) + min))); 150 return (max (omin, min (r_max, (ran % range) + r_min)));
130 } 151 }
131 return ((ran % diff) + min); 152
153 return ran % range + r_min;
132} 154}
133 155
134/* 156/*
135 * 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,
136 * 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.
137 * Generally, op should be the player/caster/hitter requesting the roll, 159 * Generally, op should be the player/caster/hitter requesting the roll,
138 * not the recipient (ie, the poor slob getting hit). 160 * not the recipient (ie, the poor slob getting hit).
139 * The args are num D size (ie 4d6) [garbled 20010916] 161 * The args are num D size (ie 4d6) [garbled 20010916]
140 */ 162 */
141
142int 163int
143die_roll (int num, int size, const object *op, int goodbad) 164die_roll (int num, int size, const object *op, int goodbad)
144{ 165{
145 int min, diff, luck, total, i, gotlucky, base, ran; 166 int min, luck, total, i, gotlucky;
146 167
147 diff = size; 168 int diff = size;
148 min = 1; 169 min = 1;
149 luck = total = gotlucky = 0; 170 luck = total = gotlucky = 0;
150 ((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
151 if (size < 2 || diff < 1) 173 if (size < 2 || diff < 1)
152 { 174 {
153 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);
154 return (num); /* avoids a float exception */ 176 return num; /* avoids a float exception */
155 } 177 }
156 178
157 if (op->type == PLAYER) 179 if (op->type == PLAYER)
158 luck = op->stats.luck; 180 luck = op->stats.luck;
159 181
160 for (i = 0; i < num; i++) 182 for (i = 0; i < num; i++)
161 { 183 {
162 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 184 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
163 { 185 {
164 /* we have a winner */ 186 /* we have a winner */
165 gotlucky++; 187 gotlucky++;
166 ((luck > 0) ? (luck = 1) : (luck = -1)); 188 ((luck > 0) ? (luck = 1) : (luck = -1));
167 diff -= luck; 189 diff -= luck;
168 if (diff < 1) 190 if (diff < 1)
169 return (num); /*check again */ 191 return (num); /*check again */
170 ((goodbad) ? (min += luck) : (diff)); 192 ((goodbad) ? (min += luck) : (diff));
171 ran = RANDOM ();
172 total += MAX (1, MIN (size, (ran % diff) + min)); 193 total += MAX (1, MIN (size, rndm (diff) + min));
173 } 194 }
174 else 195 else
175 {
176 total += RANDOM () % size + 1; 196 total += rndm (size) + 1;
177 }
178 } 197 }
198
179 return (total); 199 return total;
180}
181
182/*
183 * Another convenience function. Returns a number between min and max.
184 * It is suggested one use these functions rather than RANDOM()%, as it
185 * would appear that a number of off-by-one-errors exist due to improper
186 * use of %. This should also prevent SIGFPE.
187 */
188
189int
190rndm (int min, int max)
191{
192 int diff;
193
194 diff = max - min + 1;
195 if (max < 1 || diff < 1)
196 return (min);
197
198 return (RANDOM () % diff + min);
199}
200
201/* decay and destroy perishable items in a map */
202void
203maptile::decay_objects ()
204{
205 if (!spaces)
206 return;
207
208 for (mapspace *ms = spaces + size (); ms-- > spaces; )
209 for (object *above, *op = ms->bot; op; op = above)
210 {
211 above = op->above;
212
213 bool destroy = 0;
214
215 // do not decay anything above unique floor tiles (yet :)
216 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
217 break;
218
219 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
220 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
221 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
222 || QUERY_FLAG (op, FLAG_UNIQUE)
223 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
224 || QUERY_FLAG (op, FLAG_UNPAID)
225 || op->is_alive ())
226 ; // do not decay
227 else if (op->is_weapon ())
228 {
229 op->stats.dam--;
230 if (op->stats.dam < 0)
231 destroy = 1;
232 }
233 else if (op->is_armor ())
234 {
235 op->stats.ac--;
236 if (op->stats.ac < 0)
237 destroy = 1;
238 }
239 else if (op->type == FOOD)
240 {
241 op->stats.food -= rndm (5, 20);
242 if (op->stats.food < 0)
243 destroy = 1;
244 }
245 else
246 {
247 int mat = op->material;
248
249 if (mat & M_PAPER
250 || mat & M_LEATHER
251 || mat & M_WOOD
252 || mat & M_ORGANIC
253 || mat & M_CLOTH
254 || mat & M_LIQUID
255 || (mat & M_IRON && rndm (1, 5) == 1)
256 || (mat & M_GLASS && rndm (1, 2) == 1)
257 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
258 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
259 || (mat & M_ICE && temp > 32))
260 destroy = 1;
261 }
262
263 /* adjust overall chance below */
264 if (destroy && rndm (0, 1))
265 op->destroy ();
266 }
267} 200}
268 201
269/* convert materialname to materialtype_t */ 202/* convert materialname to materialtype_t */
270 203
271materialtype_t * 204materialtype_t *
272name_to_material (const char *name) 205name_to_material (const shstr &name)
273{ 206{
274 materialtype_t *mt, *nmt; 207 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
208 if (name == mt->name)
209 return mt;
275 210
276 mt = NULL;
277 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
278 {
279 if (strcmp (name, nmt->name) == 0)
280 {
281 mt = nmt;
282 break;
283 }
284 }
285 return mt; 211 return 0;
286} 212}
287 213
288/* when doing transmutation of objects, we have to recheck the resistances, 214/* when doing transmutation of objects, we have to recheck the resistances,
289 * as some that did not apply previously, may apply now. 215 * as some that did not apply previously, may apply now.
290 */ 216 */
291
292void 217void
293transmute_materialname (object *op, const object *change) 218transmute_materialname (object *op, const object *change)
294{ 219{
295 materialtype_t *mt; 220 materialtype_t *mt;
296 int j; 221 int j;
305 return; 230 return;
306 231
307 mt = name_to_material (op->materialname); 232 mt = name_to_material (op->materialname);
308 if (!mt) 233 if (!mt)
309 { 234 {
310 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);
311 return; 236 return;
312 } 237 }
313 238
314 for (j = 0; j < NROFATTACKS; j++) 239 for (j = 0; j < NROFATTACKS; j++)
315 if (op->resist[j] == 0 && change->resist[j] != 0) 240 if (op->resist[j] == 0 && change->resist[j] != 0)
326void 251void
327set_materialname (object *op, int difficulty, materialtype_t *nmt) 252set_materialname (object *op, int difficulty, materialtype_t *nmt)
328{ 253{
329 materialtype_t *mt, *lmt; 254 materialtype_t *mt, *lmt;
330 255
331#ifdef NEW_MATERIAL_CODE
332 int j;
333#endif
334
335 if (op->materialname != NULL) 256 if (op->materialname != NULL)
336 return; 257 return;
337 258
338
339
340 if (nmt == NULL) 259 if (nmt == NULL)
341 { 260 {
342 lmt = NULL; 261 lmt = NULL;
343#ifndef NEW_MATERIAL_CODE 262
344 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 263 for (mt = materialt; mt && mt->next; mt = mt->next)
345 { 264 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
346 if (op->material & mt->material) 265 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
347 { 266 {
348 lmt = mt; 267 lmt = mt;
268 if (!(op->is_weapon () || op->is_armor ()))
349 break; 269 break;
350 } 270 }
351 }
352
353#else
354 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
355 {
356 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
357 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
358 {
359 lmt = mt;
360 if (!(op->is_weapon () || op->is_armor ()))
361 break;
362 }
363 }
364#endif
365 } 271 }
366 else 272 else
367 {
368 lmt = nmt; 273 lmt = nmt;
369 }
370 274
371 if (lmt != NULL) 275 if (lmt != NULL)
372 { 276 {
373#ifndef NEW_MATERIAL_CODE
374 op->materialname = lmt->name;
375 return;
376#else
377
378 if (op->stats.dam && op->is_weapon ()) 277 if (op->stats.dam && op->is_weapon ())
379 { 278 {
380 op->stats.dam += lmt->damage; 279 op->stats.dam += lmt->damage;
381 if (op->stats.dam < 1) 280 if (op->stats.dam < 1)
382 op->stats.dam = 1; 281 op->stats.dam = 1;
383 } 282 }
283
384 if (op->stats.sp && op->type == BOW) 284 if (op->stats.sp && op->type == BOW)
385 op->stats.sp += lmt->sp; 285 op->stats.sp += lmt->sp;
386 if (op->stats.wc && op->is_weapon ()) 286 if (op->stats.wc && op->is_weapon ())
387 op->stats.wc += lmt->wc; 287 op->stats.wc += lmt->wc;
388 if (op->is_armor ()) 288 if (op->is_armor ())
389 { 289 {
390 if (op->stats.ac) 290 if (op->stats.ac)
391 op->stats.ac += lmt->ac; 291 op->stats.ac += lmt->ac;
292
392 for (j = 0; j < NROFATTACKS; j++) 293 for (int j = 0; j < NROFATTACKS; j++)
393 if (op->resist[j] != 0) 294 if (op->resist[j] != 0)
394 { 295 {
395 op->resist[j] += lmt->mod[j]; 296 op->resist[j] += lmt->mod[j];
396 if (op->resist[j] > 100) 297 if (op->resist[j] > 100)
397 op->resist[j] = 100; 298 op->resist[j] = 100;
398 if (op->resist[j] < -100) 299 if (op->resist[j] < -100)
399 op->resist[j] = -100; 300 op->resist[j] = -100;
400 } 301 }
401 } 302 }
303
402 op->materialname = add_string (lmt->name); 304 op->materialname = lmt->name;
403 /* dont make it unstackable if it doesn't need to be */ 305 /* dont make it unstackable if it doesn't need to be */
404 if (op->is_weapon () || op->is_armor ()) 306 if (op->is_weapon () || op->is_armor ())
405 { 307 {
406 op->weight = (op->weight * lmt->weight) / 100; 308 op->weight = (op->weight * lmt->weight) / 100;
407 op->value = (op->value * lmt->value) / 100; 309 op->value = (op->value * lmt->value) / 100;
408 } 310 }
409#endif
410 } 311 }
411} 312}
412 313
413/* 314/*
414 * Strip out the media tags from a String. 315 * Strip out the media tags from a String.
509 * 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
510 * 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.
511 * This function will also strip all trailing non alphanumeric characters. 412 * This function will also strip all trailing non alphanumeric characters.
512 * It does not insert an oxford comma. 413 * It does not insert an oxford comma.
513 */ 414 */
514
515void 415void
516make_list_like (char *input) 416make_list_like (char *input)
517{ 417{
518 char *p, tmp[MAX_BUF]; 418 char *p, tmp[MAX_BUF];
519 int i; 419 int i;
544 return; 444 return;
545} 445}
546 446
547///////////////////////////////////////////////////////////////////////////// 447/////////////////////////////////////////////////////////////////////////////
548 448
449void
450fork_abort (const char *msg)
451{
452 if (!fork ())
453 {
454 fprintf (stderr, "background fork_abort in progress, remove me when debugged.\n");//D
455
456 signal (SIGINT , SIG_IGN);
457 signal (SIGTERM, SIG_IGN);
458 signal (SIGABRT, SIG_IGN);
459
460 signal (SIGSEGV, SIG_DFL);
461 signal (SIGBUS , SIG_DFL);
462 signal (SIGILL , SIG_DFL);
463 signal (SIGTRAP, SIG_DFL);
464
465 // try to put corefiles into a subdirectory, if existing, to allow
466 // an administrator to reduce the I/O load.
467 chdir ("cores");
468
469 // try to detach us from as many external dependencies as possible
470 // as coredumping can take time by closing all fd's.
471 {
472 struct rlimit lim;
473
474 if (getrlimit (RLIMIT_NOFILE, &lim))
475 lim.rlim_cur = 1024;
476
477 for (int i = 0; i < lim.rlim_cur; ++i)
478 close (i);
479 }
480
481 {
482 sigset_t empty;
483 sigemptyset (&empty);
484 sigprocmask (SIG_SETMASK, &empty, 0);
485 }
486
487 // try to coredump with SIGTRAP
488 kill (getpid (), SIGTRAP);
489 abort ();
490 }
491
492 LOG (llevError, "fork abort: %s\n", msg);
493}
494
549void *salloc_ (int n) throw (std::bad_alloc) 495void *salloc_ (int n) throw (std::bad_alloc)
550{ 496{
551 void *ptr = g_slice_alloc (n); 497 void *ptr = g_slice_alloc (n);
552 498
553 if (!ptr) 499 if (!ptr)
554 throw std::bad_alloc (); 500 throw std::bad_alloc ();
555 501
502 slice_alloc += n;
556 return ptr; 503 return ptr;
557} 504}
558 505
559void *salloc_ (int n, void *src) throw (std::bad_alloc) 506void *salloc_ (int n, void *src) throw (std::bad_alloc)
560{ 507{
566 memset (ptr, 0, n); 513 memset (ptr, 0, n);
567 514
568 return ptr; 515 return ptr;
569} 516}
570 517
518/******************************************************************************/
519
520#if DEBUG_SALLOC
521
522#define MAGIC 0xa1b2c35543deadLL
523
524void *g_slice_alloc (unsigned long size)
525{
526 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
527 *p++ = size ^ MAGIC;
528 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
529 return (void *)p;
530}
531
532void *g_slice_alloc0 (unsigned long size)
533{
534 return memset (g_slice_alloc (size), 0, size);
535}
536
537void g_slice_free1 (unsigned long size, void *ptr)
538{
539 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
540 if (expect_true (ptr))
541 {
542 unsigned long *p = (unsigned long *)ptr;
543 unsigned long s = *--p ^ MAGIC;
544
545 if (size != (unsigned long)(*p ^ MAGIC))
546 {
547 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
548 abort ();
549 }
550
551 *p = MAGIC;
552
553 (g_slice_free1)(s + sizeof (unsigned long), p);
554 }
555}
556
557#endif
558
559/******************************************************************************/
560
571void assign (char *dst, const char *src, int maxlen) 561void assign (char *dst, const char *src, int maxlen)
572{ 562{
573 if (!src) 563 if (!src)
574 src = ""; 564 src = "";
575 565
590 } 580 }
591 else 581 else
592 memcpy (dst, src, len + 1); 582 memcpy (dst, src, len + 1);
593} 583}
594 584
585const char *
586format (const char *format, ...)
587{
588 static dynbuf_text buf;
589
590 buf.clear ();
591
592 va_list ap;
593 va_start (ap, format);
594 buf.vprintf (format, ap);
595 va_end (ap);
596
597 return buf;
598}
599
595tstamp now () 600tstamp now ()
596{ 601{
597 struct timeval tv; 602 struct timeval tv;
598 603
599 gettimeofday (&tv, 0); 604 gettimeofday (&tv, 0);
608 613
609 int diff = (b - a) & 7; 614 int diff = (b - a) & 7;
610 return diff <= 1 || diff >= 7; 615 return diff <= 1 || diff >= 7;
611} 616}
612 617
618/* crc32 0xdebb20e3 table and supplementary functions. */
619extern const uint32_t crc_32_tab[256] =
620{
621 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
622 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
623 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
624 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
625 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
626 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
627 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
628 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
629 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
630 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
631 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
632 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
633 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
634 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
635 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
636 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
637 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
638 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
639 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
640 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
641 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
642 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
643 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
644 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
645 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
646 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
647 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
648 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
649 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
650 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
651 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
652 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
653 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
654 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
655 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
656 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
657 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
658 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
659 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
660 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
661 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
662 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
663 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
664 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
665 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
666 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
667 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
668 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
669 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
670 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
671 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
672 0x2d02ef8dL
673};
674
675void thread::start (void *(*start_routine)(void *), void *arg)
676{
677 pthread_attr_t attr;
678
679 pthread_attr_init (&attr);
680 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
681 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
682 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
683#ifdef PTHREAD_SCOPE_PROCESS
684 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
685#endif
686
687 sigset_t fullsigset, oldsigset;
688 sigfillset (&fullsigset);
689
690 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
691
692 if (pthread_create (&id, &attr, start_routine, arg))
693 cleanup ("unable to create a new thread");
694
695 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
696}
697

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