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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.40 by root, Thu Jan 18 19:32:37 2007 UTC vs.
Revision 1.86 by root, Mon Jan 12 03:40:21 2009 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.
21 * 20 *
22 * The authors can be reached via e-mail at <crossfire@schmorp.de> 21 * The authors can be reached via e-mail to <support@deliantra.net>
23 */ 22 */
24 23
25/* 24/*
26 * General convenience functions for crossfire. 25 * General convenience functions for crossfire.
27 */ 26 */
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>
41 42
42rand_gen rndm (time (0)); 43refcnt_base::refcnt_t refcnt_dummy;
44ssize_t slice_alloc;
45rand_gen rndm, rmg_rndm;
43 46
47void
44tausworthe_random_generator::tausworthe_random_generator (uint32_t seed) 48tausworthe_random_generator::seed (uint32_t seed)
45{ 49{
46 state [0] = max ( 2, seed * 69069U); 50 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
47 state [1] = max ( 8, state [0] * 69069U); 51 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
48 state [2] = max ( 16, state [1] * 69069U); 52 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
49 state [3] = max (128, state [2] * 69069U); 53 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
50 54
51 for (int i = 11; --i; ) 55 for (int i = 11; --i; )
52 operator ()(); 56 next ();
53} 57}
54 58
55uint32_t 59uint32_t
56tausworthe_random_generator::next () 60tausworthe_random_generator::next ()
57{ 61{
60 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U); 64 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
61 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U); 65 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
62 66
63 return state [0] ^ state [1] ^ state [2] ^ state [3]; 67 return state [0] ^ state [1] ^ state [2] ^ state [3];
64} 68}
69
70template<class generator>
71uint32_t
72random_number_generator<generator>::get_range (uint32_t num)
73{
74 return (this->next () * (uint64_t)num) >> 32U;
75}
76
77// return a number within (min .. max)
78template<class generator>
79int
80random_number_generator<generator>::get_range (int r_min, int r_max)
81{
82 return r_min + get_range (max (r_max - r_min + 1, 0));
83}
84
85template struct random_number_generator<tausworthe_random_generator>;
86template struct random_number_generator<xorshift_random_generator>;
65 87
66/* 88/*
67 * The random functions here take luck into account when rolling random 89 * The random functions here take luck into account when rolling random
68 * dice or numbers. This function has less of an impact the larger the 90 * dice or numbers. This function has less of an impact the larger the
69 * difference becomes in the random numbers. IE, the effect is lessened 91 * difference becomes in the random numbers. IE, the effect is lessened
77 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. 99 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
78 * Generally, op should be the player/caster/hitter requesting the roll, 100 * Generally, op should be the player/caster/hitter requesting the roll,
79 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 101 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
80 */ 102 */
81int 103int
82random_roll (int min, int max, const object *op, int goodbad) 104random_roll (int r_min, int r_max, const object *op, int goodbad)
83{ 105{
84 int omin, diff, luck, base, ran; 106 r_max = max (r_min, r_max);
85 107
86 omin = min; 108 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
87 diff = max - min + 1;
88 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
89 109
90 if (max < 1 || diff < 1)
91 {
92 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
93 return (min); /* avoids a float exception */
94 }
95
96 ran = RANDOM ();
97
98 if (op->type != PLAYER) 110 if (op->type == PLAYER)
99 return ((ran % diff) + min); 111 {
100
101 luck = op->stats.luck; 112 int luck = op->stats.luck;
102 if (RANDOM () % base < MIN (10, abs (luck))) 113
114 if (rndm (base) < min (10, abs (luck)))
115 {
116 //TODO: take luck into account
117 }
103 { 118 }
104 /* we have a winner */
105 ((luck > 0) ? (luck = 1) : (luck = -1));
106 diff -= luck;
107 if (diff < 1)
108 return (omin); /*check again */
109 ((goodbad) ? (min += luck) : (diff));
110 119
111 return (MAX (omin, MIN (max, (ran % diff) + min))); 120 return rndm (r_min, r_max);
112 }
113 return ((ran % diff) + min);
114} 121}
115 122
116/* 123/*
117 * This is a 64 bit version of random_roll above. This is needed 124 * This is a 64 bit version of random_roll above. This is needed
118 * for exp loss calculations for players changing religions. 125 * for exp loss calculations for players changing religions.
119 */ 126 */
120
121sint64 127sint64
122random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 128random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
123{ 129{
124 sint64 omin, diff, luck, ran; 130 sint64 omin = r_min;
125 int base; 131 sint64 range = max (0, r_max - r_min + 1);
132 int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
126 133
127 omin = min; 134 /*
128 diff = max - min + 1;
129 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
130
131 if (max < 1 || diff < 1)
132 {
133 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
134 return (min); /* avoids a float exception */
135 }
136
137 /* Don't know of a portable call to get 64 bit random values.
138 * So make a call to get two 32 bit random numbers, and just to 135 * Make a call to get two 32 bit unsigned random numbers, and just to
139 * a little byteshifting. Do make sure the first one is only 136 * a little bitshifting.
140 * 32 bit, so we don't get skewed results
141 */ 137 */
142 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 138 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
143 139
144 if (op->type != PLAYER) 140 if (op->type != PLAYER)
145 return ((ran % diff) + min); 141 return ((ran % range) + r_min);
146 142
147 luck = op->stats.luck; 143 int luck = op->stats.luck;
144
148 if (RANDOM () % base < MIN (10, abs (luck))) 145 if (rndm (base) < min (10, abs (luck)))
149 { 146 {
150 /* we have a winner */ 147 /* we have a winner */
151 ((luck > 0) ? (luck = 1) : (luck = -1)); 148 ((luck > 0) ? (luck = 1) : (luck = -1));
152 diff -= luck; 149 range -= luck;
153 if (diff < 1) 150 if (range < 1)
154 return (omin); /*check again */ 151 return (omin); /*check again */
152
155 ((goodbad) ? (min += luck) : (diff)); 153 ((goodbad) ? (r_min += luck) : (range));
156 154
157 return (MAX (omin, MIN (max, (ran % diff) + min))); 155 return (max (omin, min (r_max, (ran % range) + r_min)));
158 } 156 }
159 return ((ran % diff) + min); 157
158 return ran % range + r_min;
160} 159}
161 160
162/* 161/*
163 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 162 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
164 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 163 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
165 * Generally, op should be the player/caster/hitter requesting the roll, 164 * Generally, op should be the player/caster/hitter requesting the roll,
166 * not the recipient (ie, the poor slob getting hit). 165 * not the recipient (ie, the poor slob getting hit).
167 * The args are num D size (ie 4d6) [garbled 20010916] 166 * The args are num D size (ie 4d6) [garbled 20010916]
168 */ 167 */
169
170int 168int
171die_roll (int num, int size, const object *op, int goodbad) 169die_roll (int num, int size, const object *op, int goodbad)
172{ 170{
173 int min, diff, luck, total, i, gotlucky, base, ran; 171 int min, luck, total, i, gotlucky;
174 172
175 diff = size; 173 int diff = size;
176 min = 1; 174 min = 1;
177 luck = total = gotlucky = 0; 175 luck = total = gotlucky = 0;
178 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 176 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
177
179 if (size < 2 || diff < 1) 178 if (size < 2 || diff < 1)
180 { 179 {
181 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 180 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
182 return (num); /* avoids a float exception */ 181 return num; /* avoids a float exception */
183 } 182 }
184 183
185 if (op->type == PLAYER) 184 if (op->type == PLAYER)
186 luck = op->stats.luck; 185 luck = op->stats.luck;
187 186
188 for (i = 0; i < num; i++) 187 for (i = 0; i < num; i++)
189 { 188 {
190 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 189 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
191 { 190 {
192 /* we have a winner */ 191 /* we have a winner */
193 gotlucky++; 192 gotlucky++;
194 ((luck > 0) ? (luck = 1) : (luck = -1)); 193 ((luck > 0) ? (luck = 1) : (luck = -1));
195 diff -= luck; 194 diff -= luck;
196 if (diff < 1) 195 if (diff < 1)
197 return (num); /*check again */ 196 return (num); /*check again */
198 ((goodbad) ? (min += luck) : (diff)); 197 ((goodbad) ? (min += luck) : (diff));
199 ran = RANDOM ();
200 total += MAX (1, MIN (size, (ran % diff) + min)); 198 total += MAX (1, MIN (size, rndm (diff) + min));
201 } 199 }
202 else 200 else
203 {
204 total += RANDOM () % size + 1; 201 total += rndm (size) + 1;
205 }
206 } 202 }
203
207 return (total); 204 return total;
208}
209
210/* decay and destroy perishable items in a map */
211void
212maptile::decay_objects ()
213{
214 if (!spaces)
215 return;
216
217 for (mapspace *ms = spaces + size (); ms-- > spaces; )
218 for (object *above, *op = ms->bot; op; op = above)
219 {
220 above = op->above;
221
222 bool destroy = 0;
223
224 // do not decay anything above unique floor tiles (yet :)
225 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
226 break;
227
228 if (QUERY_FLAG (op, FLAG_IS_FLOOR)
229 || QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
230 || QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
231 || QUERY_FLAG (op, FLAG_UNIQUE)
232 || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
233 || QUERY_FLAG (op, FLAG_UNPAID)
234 || op->is_alive ())
235 ; // do not decay
236 else if (op->is_weapon ())
237 {
238 op->stats.dam--;
239 if (op->stats.dam < 0)
240 destroy = 1;
241 }
242 else if (op->is_armor ())
243 {
244 op->stats.ac--;
245 if (op->stats.ac < 0)
246 destroy = 1;
247 }
248 else if (op->type == FOOD)
249 {
250 op->stats.food -= rndm (5, 20);
251 if (op->stats.food < 0)
252 destroy = 1;
253 }
254 else
255 {
256 int mat = op->material;
257
258 if (mat & M_PAPER
259 || mat & M_LEATHER
260 || mat & M_WOOD
261 || mat & M_ORGANIC
262 || mat & M_CLOTH
263 || mat & M_LIQUID
264 || (mat & M_IRON && rndm (1, 5) == 1)
265 || (mat & M_GLASS && rndm (1, 2) == 1)
266 || ((mat & M_STONE || mat & M_ADAMANT) && rndm (1, 10) == 1)
267 || ((mat & M_SOFT_METAL || mat & M_BONE) && rndm (1, 3) == 1)
268 || (mat & M_ICE && temp > 32))
269 destroy = 1;
270 }
271
272 /* adjust overall chance below */
273 if (destroy && rndm (0, 1))
274 op->destroy ();
275 }
276} 205}
277 206
278/* convert materialname to materialtype_t */ 207/* convert materialname to materialtype_t */
279 208
280materialtype_t * 209materialtype_t *
281name_to_material (const char *name) 210name_to_material (const shstr_cmp name)
282{ 211{
283 materialtype_t *mt, *nmt; 212 for (materialtype_t *mt = materialt; mt; mt = mt->next)
213 if (name == mt->name)
214 return mt;
284 215
285 mt = NULL;
286 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
287 {
288 if (strcmp (name, nmt->name) == 0)
289 {
290 mt = nmt;
291 break;
292 }
293 }
294 return mt; 216 return 0;
295} 217}
296 218
297/* when doing transmutation of objects, we have to recheck the resistances, 219/* when doing transmutation of objects, we have to recheck the resistances,
298 * as some that did not apply previously, may apply now. 220 * as some that did not apply previously, may apply now.
299 */ 221 */
300
301void 222void
302transmute_materialname (object *op, const object *change) 223transmute_materialname (object *op, const object *change)
303{ 224{
304 materialtype_t *mt; 225 materialtype_t *mt;
305 int j; 226 int j;
306 227
307 if (op->materialname == NULL) 228 if (!op->materialname)
308 return; 229 return;
309 230
310 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 231 if (op->materialname != change->materialname)
311 return; 232 return;
312 233
313 if (!op->is_armor ()) 234 if (!op->is_armor ())
314 return; 235 return;
315 236
316 mt = name_to_material (op->materialname); 237 mt = name_to_material (op->materialname);
317 if (!mt) 238 if (!mt)
318 { 239 {
319 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 240 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
320 return; 241 return;
321 } 242 }
322 243
323 for (j = 0; j < NROFATTACKS; j++) 244 for (j = 0; j < NROFATTACKS; j++)
324 if (op->resist[j] == 0 && change->resist[j] != 0) 245 if (op->resist[j] == 0 && change->resist[j] != 0)
335void 256void
336set_materialname (object *op, int difficulty, materialtype_t *nmt) 257set_materialname (object *op, int difficulty, materialtype_t *nmt)
337{ 258{
338 materialtype_t *mt, *lmt; 259 materialtype_t *mt, *lmt;
339 260
340#ifdef NEW_MATERIAL_CODE
341 int j;
342#endif
343
344 if (op->materialname != NULL) 261 if (!op->materialname)
345 return; 262 return;
346 263
347 264 if (nmt)
348 265 lmt = nmt;
349 if (nmt == NULL) 266 else
350 { 267 {
351 lmt = NULL; 268 lmt = 0;
352#ifndef NEW_MATERIAL_CODE 269
353 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 270 for (mt = materialt; mt; mt = mt->next)
354 { 271 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
355 if (op->material & mt->material) 272 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
356 { 273 {
357 lmt = mt; 274 lmt = mt;
275 if (!(op->is_weapon () || op->is_armor ()))
358 break; 276 break;
359 } 277 }
360 }
361
362#else
363 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
364 {
365 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
366 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
367 {
368 lmt = mt;
369 if (!(op->is_weapon () || op->is_armor ()))
370 break;
371 }
372 }
373#endif
374 }
375 else
376 { 278 }
377 lmt = nmt; 279
280 if (lmt)
378 } 281 {
379
380 if (lmt != NULL)
381 {
382#ifndef NEW_MATERIAL_CODE
383 op->materialname = lmt->name;
384 return;
385#else
386
387 if (op->stats.dam && op->is_weapon ()) 282 if (op->stats.dam && op->is_weapon ())
388 { 283 {
389 op->stats.dam += lmt->damage; 284 op->stats.dam += lmt->damage;
390 if (op->stats.dam < 1) 285 if (op->stats.dam < 1)
391 op->stats.dam = 1; 286 op->stats.dam = 1;
392 } 287 }
288
393 if (op->stats.sp && op->type == BOW) 289 if (op->stats.sp && op->type == BOW)
394 op->stats.sp += lmt->sp; 290 op->stats.sp += lmt->sp;
395 if (op->stats.wc && op->is_weapon ()) 291 if (op->stats.wc && op->is_weapon ())
396 op->stats.wc += lmt->wc; 292 op->stats.wc += lmt->wc;
397 if (op->is_armor ()) 293 if (op->is_armor ())
398 { 294 {
399 if (op->stats.ac) 295 if (op->stats.ac)
400 op->stats.ac += lmt->ac; 296 op->stats.ac += lmt->ac;
297
401 for (j = 0; j < NROFATTACKS; j++) 298 for (int j = 0; j < NROFATTACKS; j++)
402 if (op->resist[j] != 0) 299 if (op->resist[j] != 0)
403 { 300 {
404 op->resist[j] += lmt->mod[j]; 301 op->resist[j] += lmt->mod[j];
405 if (op->resist[j] > 100) 302 if (op->resist[j] > 100)
406 op->resist[j] = 100; 303 op->resist[j] = 100;
407 if (op->resist[j] < -100) 304 if (op->resist[j] < -100)
408 op->resist[j] = -100; 305 op->resist[j] = -100;
409 } 306 }
410 } 307 }
308
411 op->materialname = add_string (lmt->name); 309 op->materialname = lmt->name;
412 /* dont make it unstackable if it doesn't need to be */ 310 /* dont make it unstackable if it doesn't need to be */
413 if (op->is_weapon () || op->is_armor ()) 311 if (op->is_weapon () || op->is_armor ())
414 { 312 {
415 op->weight = (op->weight * lmt->weight) / 100; 313 op->weight = (op->weight * lmt->weight) / 100;
416 op->value = (op->value * lmt->value) / 100; 314 op->value = (op->value * lmt->value) / 100;
417 } 315 }
418#endif
419 } 316 }
420} 317}
421 318
422/* 319/*
423 * Strip out the media tags from a String. 320 * Strip out the media tags from a String.
518 * a 'list' for the purposes here, is a string of items, seperated by commas, except 415 * a 'list' for the purposes here, is a string of items, seperated by commas, except
519 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 416 * for the last entry, which has an 'and' before it, and a full stop (period) after it.
520 * This function will also strip all trailing non alphanumeric characters. 417 * This function will also strip all trailing non alphanumeric characters.
521 * It does not insert an oxford comma. 418 * It does not insert an oxford comma.
522 */ 419 */
523
524void 420void
525make_list_like (char *input) 421make_list_like (char *input)
526{ 422{
527 char *p, tmp[MAX_BUF]; 423 char *p, tmp[MAX_BUF];
528 int i; 424 int i;
558void 454void
559fork_abort (const char *msg) 455fork_abort (const char *msg)
560{ 456{
561 if (!fork ()) 457 if (!fork ())
562 { 458 {
459 signal (SIGINT , SIG_IGN);
460 signal (SIGTERM, SIG_IGN);
563 signal (SIGABRT, SIG_DFL); 461 signal (SIGABRT, SIG_IGN);
462
463 signal (SIGSEGV, SIG_DFL);
464 signal (SIGBUS , SIG_DFL);
465 signal (SIGILL , SIG_DFL);
466 signal (SIGTRAP, SIG_DFL);
467
468 // try to put corefiles into a subdirectory, if existing, to allow
469 // an administrator to reduce the I/O load.
470 chdir ("cores");
471
472 // try to detach us from as many external dependencies as possible
473 // as coredumping can take time by closing all fd's.
474 {
475 struct rlimit lim;
476
477 if (getrlimit (RLIMIT_NOFILE, &lim))
478 lim.rlim_cur = 1024;
479
480 for (int i = 0; i < lim.rlim_cur; ++i)
481 close (i);
482 }
483
484 {
485 sigset_t empty;
486 sigemptyset (&empty);
487 sigprocmask (SIG_SETMASK, &empty, 0);
488 }
489
490 // try to coredump with SIGTRAP
491 kill (getpid (), SIGTRAP);
564 abort (); 492 abort ();
565 } 493 }
566 494
567 LOG (llevError, "fork abort: %s\n", msg); 495 LOG (llevError, "fork abort: %s\n", msg);
568} 496}
572 void *ptr = g_slice_alloc (n); 500 void *ptr = g_slice_alloc (n);
573 501
574 if (!ptr) 502 if (!ptr)
575 throw std::bad_alloc (); 503 throw std::bad_alloc ();
576 504
505 slice_alloc += n;
577 return ptr; 506 return ptr;
578} 507}
579 508
580void *salloc_ (int n, void *src) throw (std::bad_alloc) 509void *salloc_ (int n, void *src) throw (std::bad_alloc)
581{ 510{
587 memset (ptr, 0, n); 516 memset (ptr, 0, n);
588 517
589 return ptr; 518 return ptr;
590} 519}
591 520
521/******************************************************************************/
522
523#if DEBUG_SALLOC
524
525#define MAGIC 0xa1b2c35543deadLL
526
527void *g_slice_alloc (unsigned long size)
528{
529 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
530 *p++ = size ^ MAGIC;
531 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
532 return (void *)p;
533}
534
535void *g_slice_alloc0 (unsigned long size)
536{
537 return memset (g_slice_alloc (size), 0, size);
538}
539
540void g_slice_free1 (unsigned long size, void *ptr)
541{
542 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
543 if (expect_true (ptr))
544 {
545 unsigned long *p = (unsigned long *)ptr;
546 unsigned long s = *--p ^ MAGIC;
547
548 if (size != (unsigned long)(*p ^ MAGIC))
549 {
550 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
551 abort ();
552 }
553
554 *p = MAGIC;
555
556 (g_slice_free1)(s + sizeof (unsigned long), p);
557 }
558}
559
560#endif
561
562/******************************************************************************/
563
564int
592void assign (char *dst, const char *src, int maxlen) 565assign (char *dst, const char *src, int maxsize)
593{ 566{
594 if (!src) 567 if (!src)
595 src = ""; 568 src = "";
596 569
597 int len = strlen (src); 570 int len = strlen (src);
598 571
599 if (len >= maxlen - 1) 572 if (len >= maxsize)
600 { 573 {
601 if (maxlen <= 4) 574 if (maxsize <= 4)
602 { 575 {
603 memset (dst, '.', maxlen - 1); 576 memset (dst, '.', maxsize - 2);
604 dst [maxlen - 1] = 0; 577 dst [maxsize - 1] = 0;
605 } 578 }
606 else 579 else
607 { 580 {
608 memcpy (dst, src, maxlen - 4); 581 memcpy (dst, src, maxsize - 4);
609 memcpy (dst + maxlen - 4, "...", 4); 582 memcpy (dst + maxsize - 4, "...", 4);
610 } 583 }
584
585 len = maxsize;
611 } 586 }
612 else 587 else
613 memcpy (dst, src, len + 1); 588 memcpy (dst, src, ++len);
589
590 return len;
591}
592
593const char *
594format (const char *format, ...)
595{
596 static dynbuf_text buf;
597
598 buf.clear ();
599
600 va_list ap;
601 va_start (ap, format);
602 buf.vprintf (format, ap);
603 va_end (ap);
604
605 return buf;
614} 606}
615 607
616tstamp now () 608tstamp now ()
617{ 609{
618 struct timeval tv; 610 struct timeval tv;
629 621
630 int diff = (b - a) & 7; 622 int diff = (b - a) & 7;
631 return diff <= 1 || diff >= 7; 623 return diff <= 1 || diff >= 7;
632} 624}
633 625
626/* crc32 0xdebb20e3 table and supplementary functions. */
627extern const uint32_t crc_32_tab[256] =
628{
629 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
630 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
631 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
632 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
633 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
634 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
635 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
636 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
637 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
638 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
639 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
640 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
641 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
642 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
643 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
644 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
645 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
646 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
647 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
648 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
649 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
650 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
651 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
652 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
653 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
654 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
655 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
656 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
657 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
658 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
659 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
660 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
661 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
662 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
663 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
664 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
665 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
666 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
667 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
668 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
669 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
670 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
671 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
672 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
673 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
674 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
675 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
676 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
677 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
678 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
679 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
680 0x2d02ef8dL
681};
682
683void thread::start (void *(*start_routine)(void *), void *arg)
684{
685 pthread_attr_t attr;
686
687 pthread_attr_init (&attr);
688 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
689 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
690 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
691#ifdef PTHREAD_SCOPE_PROCESS
692 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
693#endif
694
695 sigset_t fullsigset, oldsigset;
696 sigfillset (&fullsigset);
697
698 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
699
700 if (pthread_create (&id, &attr, start_routine, arg))
701 cleanup ("unable to create a new thread");
702
703 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
704}
705

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