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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.37 by root, Mon Jan 15 02:39:40 2007 UTC vs.
Revision 1.80 by root, Wed Sep 10 18:18:10 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
32#include <sys/time.h> 31#include <sys/time.h>
33#include <time.h> 32#include <time.h>
34#include <signal.h> 33#include <signal.h>
35 34
36#include <global.h> 35#include <global.h>
37#include <funcpoint.h>
38#include <material.h> 36#include <material.h>
39 37
38#include <sys/time.h>
39#include <sys/resource.h>
40
40#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}
41 82
42/* 83/*
43 * The random functions here take luck into account when rolling random 84 * The random functions here take luck into account when rolling random
44 * 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
45 * difference becomes in the random numbers. IE, the effect is lessened 86 * difference becomes in the random numbers. IE, the effect is lessened
52 * 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,
53 * 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.
54 * Generally, op should be the player/caster/hitter requesting the roll, 95 * Generally, op should be the player/caster/hitter requesting the roll,
55 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 96 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
56 */ 97 */
57
58int 98int
59random_roll (int min, int max, const object *op, int goodbad) 99random_roll (int r_min, int r_max, const object *op, int goodbad)
60{ 100{
61 int omin, diff, luck, base, ran; 101 r_max = max (r_min, r_max);
62 102
63 omin = min; 103 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
64 diff = max - min + 1;
65 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
66 104
67 if (max < 1 || diff < 1)
68 {
69 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
70 return (min); /* avoids a float exception */
71 }
72
73 ran = RANDOM ();
74
75 if (op->type != PLAYER) 105 if (op->type == PLAYER)
76 return ((ran % diff) + min); 106 {
77
78 luck = op->stats.luck; 107 int luck = op->stats.luck;
79 if (RANDOM () % base < MIN (10, abs (luck))) 108
109 if (rndm (base) < min (10, abs (luck)))
110 {
111 //TODO: take luck into account
112 }
80 { 113 }
81 /* we have a winner */
82 ((luck > 0) ? (luck = 1) : (luck = -1));
83 diff -= luck;
84 if (diff < 1)
85 return (omin); /*check again */
86 ((goodbad) ? (min += luck) : (diff));
87 114
88 return (MAX (omin, MIN (max, (ran % diff) + min))); 115 return rndm (r_min, r_max);
89 }
90 return ((ran % diff) + min);
91} 116}
92 117
93/* 118/*
94 * 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
95 * for exp loss calculations for players changing religions. 120 * for exp loss calculations for players changing religions.
96 */ 121 */
97
98sint64 122sint64
99random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 123random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
100{ 124{
101 sint64 omin, diff, luck, ran; 125 sint64 omin = r_min;
102 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 */
103 128
104 omin = min; 129 /*
105 diff = max - min + 1;
106 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
107
108 if (max < 1 || diff < 1)
109 {
110 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
111 return (min); /* avoids a float exception */
112 }
113
114 /* Don't know of a portable call to get 64 bit random values.
115 * 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
116 * a little byteshifting. Do make sure the first one is only 131 * a little bitshifting.
117 * 32 bit, so we don't get skewed results
118 */ 132 */
119 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 133 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
120 134
121 if (op->type != PLAYER) 135 if (op->type != PLAYER)
122 return ((ran % diff) + min); 136 return ((ran % range) + r_min);
123 137
124 luck = op->stats.luck; 138 int luck = op->stats.luck;
139
125 if (RANDOM () % base < MIN (10, abs (luck))) 140 if (rndm (base) < min (10, abs (luck)))
126 { 141 {
127 /* we have a winner */ 142 /* we have a winner */
128 ((luck > 0) ? (luck = 1) : (luck = -1)); 143 ((luck > 0) ? (luck = 1) : (luck = -1));
129 diff -= luck; 144 range -= luck;
130 if (diff < 1) 145 if (range < 1)
131 return (omin); /*check again */ 146 return (omin); /*check again */
147
132 ((goodbad) ? (min += luck) : (diff)); 148 ((goodbad) ? (r_min += luck) : (range));
133 149
134 return (MAX (omin, MIN (max, (ran % diff) + min))); 150 return (max (omin, min (r_max, (ran % range) + r_min)));
135 } 151 }
136 return ((ran % diff) + min); 152
153 return ran % range + r_min;
137} 154}
138 155
139/* 156/*
140 * 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,
141 * 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.
142 * Generally, op should be the player/caster/hitter requesting the roll, 159 * Generally, op should be the player/caster/hitter requesting the roll,
143 * not the recipient (ie, the poor slob getting hit). 160 * not the recipient (ie, the poor slob getting hit).
144 * The args are num D size (ie 4d6) [garbled 20010916] 161 * The args are num D size (ie 4d6) [garbled 20010916]
145 */ 162 */
146
147int 163int
148die_roll (int num, int size, const object *op, int goodbad) 164die_roll (int num, int size, const object *op, int goodbad)
149{ 165{
150 int min, diff, luck, total, i, gotlucky, base, ran; 166 int min, luck, total, i, gotlucky;
151 167
152 diff = size; 168 int diff = size;
153 min = 1; 169 min = 1;
154 luck = total = gotlucky = 0; 170 luck = total = gotlucky = 0;
155 ((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
156 if (size < 2 || diff < 1) 173 if (size < 2 || diff < 1)
157 { 174 {
158 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);
159 return (num); /* avoids a float exception */ 176 return num; /* avoids a float exception */
160 } 177 }
161 178
162 if (op->type == PLAYER) 179 if (op->type == PLAYER)
163 luck = op->stats.luck; 180 luck = op->stats.luck;
164 181
165 for (i = 0; i < num; i++) 182 for (i = 0; i < num; i++)
166 { 183 {
167 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 184 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
168 { 185 {
169 /* we have a winner */ 186 /* we have a winner */
170 gotlucky++; 187 gotlucky++;
171 ((luck > 0) ? (luck = 1) : (luck = -1)); 188 ((luck > 0) ? (luck = 1) : (luck = -1));
172 diff -= luck; 189 diff -= luck;
173 if (diff < 1) 190 if (diff < 1)
174 return (num); /*check again */ 191 return (num); /*check again */
175 ((goodbad) ? (min += luck) : (diff)); 192 ((goodbad) ? (min += luck) : (diff));
176 ran = RANDOM ();
177 total += MAX (1, MIN (size, (ran % diff) + min)); 193 total += MAX (1, MIN (size, rndm (diff) + min));
178 } 194 }
179 else 195 else
180 {
181 total += RANDOM () % size + 1; 196 total += rndm (size) + 1;
182 }
183 } 197 }
198
184 return (total); 199 return total;
185}
186
187/*
188 * Another convenience function. Returns a number between min and max.
189 * It is suggested one use these functions rather than RANDOM()%, as it
190 * would appear that a number of off-by-one-errors exist due to improper
191 * use of %. This should also prevent SIGFPE.
192 */
193
194int
195rndm (int min, int max)
196{
197 int diff;
198
199 diff = max - min + 1;
200 if (max < 1 || diff < 1)
201 return (min);
202
203 return (RANDOM () % diff + min);
204}
205
206/* decay and destroy perishable items in a map */
207void
208maptile::decay_objects ()
209{
210 if (!spaces)
211 return;
212
213 for (mapspace *ms = spaces + size (); ms-- > spaces; )
214 for (object *above, *op = ms->bot; op; op = above)
215 {
216 above = op->above;
217
218 bool destroy = 0;
219
220 // do not decay anything above unique floor tiles (yet :)
221 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
222 break;
223
224 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
225 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
226 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
227 || QUERY_FLAG (op, FLAG_UNIQUE)
228 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
229 || QUERY_FLAG (op, FLAG_UNPAID)
230 || op->is_alive ())
231 ; // do not decay
232 else if (op->is_weapon ())
233 {
234 op->stats.dam--;
235 if (op->stats.dam < 0)
236 destroy = 1;
237 }
238 else if (op->is_armor ())
239 {
240 op->stats.ac--;
241 if (op->stats.ac < 0)
242 destroy = 1;
243 }
244 else if (op->type == FOOD)
245 {
246 op->stats.food -= rndm (5, 20);
247 if (op->stats.food < 0)
248 destroy = 1;
249 }
250 else
251 {
252 int mat = op->material;
253
254 if (mat & M_PAPER
255 || mat & M_LEATHER
256 || mat & M_WOOD
257 || mat & M_ORGANIC
258 || mat & M_CLOTH
259 || mat & M_LIQUID
260 || (mat & M_IRON && rndm (1, 5) == 1)
261 || (mat & M_GLASS && rndm (1, 2) == 1)
262 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
263 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
264 || (mat & M_ICE && temp > 32))
265 destroy = 1;
266 }
267
268 /* adjust overall chance below */
269 if (destroy && rndm (0, 1))
270 op->destroy ();
271 }
272} 200}
273 201
274/* convert materialname to materialtype_t */ 202/* convert materialname to materialtype_t */
275 203
276materialtype_t * 204materialtype_t *
277name_to_material (const char *name) 205name_to_material (const shstr &name)
278{ 206{
279 materialtype_t *mt, *nmt; 207 for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
208 if (name == mt->name)
209 return mt;
280 210
281 mt = NULL;
282 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
283 {
284 if (strcmp (name, nmt->name) == 0)
285 {
286 mt = nmt;
287 break;
288 }
289 }
290 return mt; 211 return 0;
291} 212}
292 213
293/* when doing transmutation of objects, we have to recheck the resistances, 214/* when doing transmutation of objects, we have to recheck the resistances,
294 * as some that did not apply previously, may apply now. 215 * as some that did not apply previously, may apply now.
295 */ 216 */
296
297void 217void
298transmute_materialname (object *op, const object *change) 218transmute_materialname (object *op, const object *change)
299{ 219{
300 materialtype_t *mt; 220 materialtype_t *mt;
301 int j; 221 int j;
310 return; 230 return;
311 231
312 mt = name_to_material (op->materialname); 232 mt = name_to_material (op->materialname);
313 if (!mt) 233 if (!mt)
314 { 234 {
315 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);
316 return; 236 return;
317 } 237 }
318 238
319 for (j = 0; j < NROFATTACKS; j++) 239 for (j = 0; j < NROFATTACKS; j++)
320 if (op->resist[j] == 0 && change->resist[j] != 0) 240 if (op->resist[j] == 0 && change->resist[j] != 0)
331void 251void
332set_materialname (object *op, int difficulty, materialtype_t *nmt) 252set_materialname (object *op, int difficulty, materialtype_t *nmt)
333{ 253{
334 materialtype_t *mt, *lmt; 254 materialtype_t *mt, *lmt;
335 255
336#ifdef NEW_MATERIAL_CODE
337 int j;
338#endif
339
340 if (op->materialname != NULL) 256 if (op->materialname != NULL)
341 return; 257 return;
342 258
343
344
345 if (nmt == NULL) 259 if (nmt == NULL)
346 { 260 {
347 lmt = NULL; 261 lmt = NULL;
348#ifndef NEW_MATERIAL_CODE 262
349 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 263 for (mt = materialt; mt && mt->next; mt = mt->next)
350 { 264 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
351 if (op->material & mt->material) 265 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
352 { 266 {
353 lmt = mt; 267 lmt = mt;
268 if (!(op->is_weapon () || op->is_armor ()))
354 break; 269 break;
355 } 270 }
356 }
357
358#else
359 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
360 {
361 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
362 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
363 {
364 lmt = mt;
365 if (!(op->is_weapon () || op->is_armor ()))
366 break;
367 }
368 }
369#endif
370 } 271 }
371 else 272 else
372 {
373 lmt = nmt; 273 lmt = nmt;
374 }
375 274
376 if (lmt != NULL) 275 if (lmt != NULL)
377 { 276 {
378#ifndef NEW_MATERIAL_CODE
379 op->materialname = lmt->name;
380 return;
381#else
382
383 if (op->stats.dam && op->is_weapon ()) 277 if (op->stats.dam && op->is_weapon ())
384 { 278 {
385 op->stats.dam += lmt->damage; 279 op->stats.dam += lmt->damage;
386 if (op->stats.dam < 1) 280 if (op->stats.dam < 1)
387 op->stats.dam = 1; 281 op->stats.dam = 1;
388 } 282 }
283
389 if (op->stats.sp && op->type == BOW) 284 if (op->stats.sp && op->type == BOW)
390 op->stats.sp += lmt->sp; 285 op->stats.sp += lmt->sp;
391 if (op->stats.wc && op->is_weapon ()) 286 if (op->stats.wc && op->is_weapon ())
392 op->stats.wc += lmt->wc; 287 op->stats.wc += lmt->wc;
393 if (op->is_armor ()) 288 if (op->is_armor ())
394 { 289 {
395 if (op->stats.ac) 290 if (op->stats.ac)
396 op->stats.ac += lmt->ac; 291 op->stats.ac += lmt->ac;
292
397 for (j = 0; j < NROFATTACKS; j++) 293 for (int j = 0; j < NROFATTACKS; j++)
398 if (op->resist[j] != 0) 294 if (op->resist[j] != 0)
399 { 295 {
400 op->resist[j] += lmt->mod[j]; 296 op->resist[j] += lmt->mod[j];
401 if (op->resist[j] > 100) 297 if (op->resist[j] > 100)
402 op->resist[j] = 100; 298 op->resist[j] = 100;
403 if (op->resist[j] < -100) 299 if (op->resist[j] < -100)
404 op->resist[j] = -100; 300 op->resist[j] = -100;
405 } 301 }
406 } 302 }
303
407 op->materialname = add_string (lmt->name); 304 op->materialname = lmt->name;
408 /* dont make it unstackable if it doesn't need to be */ 305 /* dont make it unstackable if it doesn't need to be */
409 if (op->is_weapon () || op->is_armor ()) 306 if (op->is_weapon () || op->is_armor ())
410 { 307 {
411 op->weight = (op->weight * lmt->weight) / 100; 308 op->weight = (op->weight * lmt->weight) / 100;
412 op->value = (op->value * lmt->value) / 100; 309 op->value = (op->value * lmt->value) / 100;
413 } 310 }
414#endif
415 } 311 }
416} 312}
417 313
418/* 314/*
419 * Strip out the media tags from a String. 315 * Strip out the media tags from a String.
514 * 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
515 * 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.
516 * This function will also strip all trailing non alphanumeric characters. 412 * This function will also strip all trailing non alphanumeric characters.
517 * It does not insert an oxford comma. 413 * It does not insert an oxford comma.
518 */ 414 */
519
520void 415void
521make_list_like (char *input) 416make_list_like (char *input)
522{ 417{
523 char *p, tmp[MAX_BUF]; 418 char *p, tmp[MAX_BUF];
524 int i; 419 int i;
552///////////////////////////////////////////////////////////////////////////// 447/////////////////////////////////////////////////////////////////////////////
553 448
554void 449void
555fork_abort (const char *msg) 450fork_abort (const char *msg)
556{ 451{
452 if (!fork ())
453 {
454 signal (SIGINT , SIG_IGN);
455 signal (SIGTERM, SIG_IGN);
456 signal (SIGABRT, SIG_IGN);
457
458 // try to put corefiles into a subdirectory, if existing, to allow
459 // an administrator to reduce the I/O load.
460 chdir ("cores");
461
462 // try to detach us from as many external dependencies as possible
463 // as coredumping can take time by closing all fd's.
464 {
465 struct rlimit lim;
466
467 if (getrlimit (RLIMIT_NOFILE, &lim))
468 lim.rlim_cur = 1024;
469
470 for (int i = 0; i < lim.rlim_cur; ++i)
471 close (i);
472 }
473
474 abort ();
475 }
476
557 LOG (llevError, "fork abort: %s\n", msg); 477 LOG (llevError, "fork abort: %s\n", msg);
558 if (!fork ())
559 {
560 signal (SIGABRT, SIG_DFL);
561 abort ();
562 }
563
564} 478}
479
565void *salloc_ (int n) throw (std::bad_alloc) 480void *salloc_ (int n) throw (std::bad_alloc)
566{ 481{
567 void *ptr = g_slice_alloc (n); 482 void *ptr = g_slice_alloc (n);
568 483
569 if (!ptr) 484 if (!ptr)
570 throw std::bad_alloc (); 485 throw std::bad_alloc ();
571 486
487 slice_alloc += n;
572 return ptr; 488 return ptr;
573} 489}
574 490
575void *salloc_ (int n, void *src) throw (std::bad_alloc) 491void *salloc_ (int n, void *src) throw (std::bad_alloc)
576{ 492{
582 memset (ptr, 0, n); 498 memset (ptr, 0, n);
583 499
584 return ptr; 500 return ptr;
585} 501}
586 502
503/******************************************************************************/
504
505#if DEBUG_SALLOC
506
507#define MAGIC 0xa1b2c35543deadLL
508
509void *g_slice_alloc (unsigned long size)
510{
511 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
512 *p++ = size ^ MAGIC;
513 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
514 return (void *)p;
515}
516
517void *g_slice_alloc0 (unsigned long size)
518{
519 return memset (g_slice_alloc (size), 0, size);
520}
521
522void g_slice_free1 (unsigned long size, void *ptr)
523{
524 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
525 if (expect_true (ptr))
526 {
527 unsigned long *p = (unsigned long *)ptr;
528 unsigned long s = *--p ^ MAGIC;
529
530 if (size != (unsigned long)(*p ^ MAGIC))
531 {
532 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
533 abort ();
534 }
535
536 *p = MAGIC;
537
538 (g_slice_free1)(s + sizeof (unsigned long), p);
539 }
540}
541
542#endif
543
544/******************************************************************************/
545
587void assign (char *dst, const char *src, int maxlen) 546void assign (char *dst, const char *src, int maxlen)
588{ 547{
589 if (!src) 548 if (!src)
590 src = ""; 549 src = "";
591 550
606 } 565 }
607 else 566 else
608 memcpy (dst, src, len + 1); 567 memcpy (dst, src, len + 1);
609} 568}
610 569
570const char *
571format (const char *format, ...)
572{
573 static dynbuf_text buf;
574
575 buf.clear ();
576
577 va_list ap;
578 va_start (ap, format);
579 buf.vprintf (format, ap);
580 va_end (ap);
581
582 return buf;
583}
584
611tstamp now () 585tstamp now ()
612{ 586{
613 struct timeval tv; 587 struct timeval tv;
614 588
615 gettimeofday (&tv, 0); 589 gettimeofday (&tv, 0);
624 598
625 int diff = (b - a) & 7; 599 int diff = (b - a) & 7;
626 return diff <= 1 || diff >= 7; 600 return diff <= 1 || diff >= 7;
627} 601}
628 602
603/* crc32 0xdebb20e3 table and supplementary functions. */
604extern const uint32_t crc_32_tab[256] =
605{
606 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
607 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
608 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
609 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
610 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
611 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
612 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
613 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
614 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
615 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
616 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
617 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
618 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
619 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
620 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
621 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
622 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
623 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
624 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
625 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
626 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
627 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
628 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
629 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
630 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
631 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
632 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
633 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
634 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
635 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
636 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
637 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
638 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
639 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
640 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
641 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
642 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
643 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
644 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
645 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
646 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
647 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
648 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
649 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
650 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
651 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
652 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
653 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
654 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
655 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
656 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
657 0x2d02ef8dL
658};
659
660void thread::start (void *(*start_routine)(void *), void *arg)
661{
662 pthread_attr_t attr;
663
664 pthread_attr_init (&attr);
665 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
666 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
667 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
668#ifdef PTHREAD_SCOPE_PROCESS
669 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
670#endif
671
672 sigset_t fullsigset, oldsigset;
673 sigfillset (&fullsigset);
674
675 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
676
677 if (pthread_create (&id, &attr, start_routine, arg))
678 cleanup ("unable to create a new thread");
679
680 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
681}
682

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