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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.38 by root, Mon Jan 15 02:42:15 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. 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 next ();
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
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>;
41 87
42/* 88/*
43 * The random functions here take luck into account when rolling random 89 * 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 90 * 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 91 * 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, 98 * 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. 99 * 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, 100 * Generally, op should be the player/caster/hitter requesting the roll,
55 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 101 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
56 */ 102 */
57
58int 103int
59random_roll (int min, int max, const object *op, int goodbad) 104random_roll (int r_min, int r_max, const object *op, int goodbad)
60{ 105{
61 int omin, diff, luck, base, ran; 106 r_max = max (r_min, r_max);
62 107
63 omin = min; 108 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 */
66 109
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) 110 if (op->type == PLAYER)
76 return ((ran % diff) + min); 111 {
77
78 luck = op->stats.luck; 112 int luck = op->stats.luck;
79 if (RANDOM () % base < MIN (10, abs (luck))) 113
114 if (rndm (base) < min (10, abs (luck)))
115 {
116 //TODO: take luck into account
117 }
80 { 118 }
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));
87 119
88 return (MAX (omin, MIN (max, (ran % diff) + min))); 120 return rndm (r_min, r_max);
89 }
90 return ((ran % diff) + min);
91} 121}
92 122
93/* 123/*
94 * 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
95 * for exp loss calculations for players changing religions. 125 * for exp loss calculations for players changing religions.
96 */ 126 */
97
98sint64 127sint64
99random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 128random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
100{ 129{
101 sint64 omin, diff, luck, ran; 130 sint64 omin = r_min;
102 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 */
103 133
104 omin = min; 134 /*
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 135 * 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 136 * a little bitshifting.
117 * 32 bit, so we don't get skewed results
118 */ 137 */
119 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 138 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
120 139
121 if (op->type != PLAYER) 140 if (op->type != PLAYER)
122 return ((ran % diff) + min); 141 return ((ran % range) + r_min);
123 142
124 luck = op->stats.luck; 143 int luck = op->stats.luck;
144
125 if (RANDOM () % base < MIN (10, abs (luck))) 145 if (rndm (base) < min (10, abs (luck)))
126 { 146 {
127 /* we have a winner */ 147 /* we have a winner */
128 ((luck > 0) ? (luck = 1) : (luck = -1)); 148 ((luck > 0) ? (luck = 1) : (luck = -1));
129 diff -= luck; 149 range -= luck;
130 if (diff < 1) 150 if (range < 1)
131 return (omin); /*check again */ 151 return (omin); /*check again */
152
132 ((goodbad) ? (min += luck) : (diff)); 153 ((goodbad) ? (r_min += luck) : (range));
133 154
134 return (MAX (omin, MIN (max, (ran % diff) + min))); 155 return (max (omin, min (r_max, (ran % range) + r_min)));
135 } 156 }
136 return ((ran % diff) + min); 157
158 return ran % range + r_min;
137} 159}
138 160
139/* 161/*
140 * 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,
141 * 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.
142 * Generally, op should be the player/caster/hitter requesting the roll, 164 * Generally, op should be the player/caster/hitter requesting the roll,
143 * not the recipient (ie, the poor slob getting hit). 165 * not the recipient (ie, the poor slob getting hit).
144 * The args are num D size (ie 4d6) [garbled 20010916] 166 * The args are num D size (ie 4d6) [garbled 20010916]
145 */ 167 */
146
147int 168int
148die_roll (int num, int size, const object *op, int goodbad) 169die_roll (int num, int size, const object *op, int goodbad)
149{ 170{
150 int min, diff, luck, total, i, gotlucky, base, ran; 171 int min, luck, total, i, gotlucky;
151 172
152 diff = size; 173 int diff = size;
153 min = 1; 174 min = 1;
154 luck = total = gotlucky = 0; 175 luck = total = gotlucky = 0;
155 ((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
156 if (size < 2 || diff < 1) 178 if (size < 2 || diff < 1)
157 { 179 {
158 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);
159 return (num); /* avoids a float exception */ 181 return num; /* avoids a float exception */
160 } 182 }
161 183
162 if (op->type == PLAYER) 184 if (op->type == PLAYER)
163 luck = op->stats.luck; 185 luck = op->stats.luck;
164 186
165 for (i = 0; i < num; i++) 187 for (i = 0; i < num; i++)
166 { 188 {
167 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 189 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
168 { 190 {
169 /* we have a winner */ 191 /* we have a winner */
170 gotlucky++; 192 gotlucky++;
171 ((luck > 0) ? (luck = 1) : (luck = -1)); 193 ((luck > 0) ? (luck = 1) : (luck = -1));
172 diff -= luck; 194 diff -= luck;
173 if (diff < 1) 195 if (diff < 1)
174 return (num); /*check again */ 196 return (num); /*check again */
175 ((goodbad) ? (min += luck) : (diff)); 197 ((goodbad) ? (min += luck) : (diff));
176 ran = RANDOM ();
177 total += MAX (1, MIN (size, (ran % diff) + min)); 198 total += MAX (1, MIN (size, rndm (diff) + min));
178 } 199 }
179 else 200 else
180 {
181 total += RANDOM () % size + 1; 201 total += rndm (size) + 1;
182 }
183 } 202 }
203
184 return (total); 204 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} 205}
273 206
274/* convert materialname to materialtype_t */ 207/* convert materialname to materialtype_t */
275 208
276materialtype_t * 209materialtype_t *
277name_to_material (const char *name) 210name_to_material (const shstr_cmp name)
278{ 211{
279 materialtype_t *mt, *nmt; 212 for (materialtype_t *mt = materialt; mt; mt = mt->next)
213 if (name == mt->name)
214 return mt;
280 215
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; 216 return 0;
291} 217}
292 218
293/* when doing transmutation of objects, we have to recheck the resistances, 219/* when doing transmutation of objects, we have to recheck the resistances,
294 * as some that did not apply previously, may apply now. 220 * as some that did not apply previously, may apply now.
295 */ 221 */
296
297void 222void
298transmute_materialname (object *op, const object *change) 223transmute_materialname (object *op, const object *change)
299{ 224{
300 materialtype_t *mt; 225 materialtype_t *mt;
301 int j; 226 int j;
302 227
303 if (op->materialname == NULL) 228 if (!op->materialname)
304 return; 229 return;
305 230
306 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 231 if (op->materialname != change->materialname)
307 return; 232 return;
308 233
309 if (!op->is_armor ()) 234 if (!op->is_armor ())
310 return; 235 return;
311 236
312 mt = name_to_material (op->materialname); 237 mt = name_to_material (op->materialname);
313 if (!mt) 238 if (!mt)
314 { 239 {
315 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);
316 return; 241 return;
317 } 242 }
318 243
319 for (j = 0; j < NROFATTACKS; j++) 244 for (j = 0; j < NROFATTACKS; j++)
320 if (op->resist[j] == 0 && change->resist[j] != 0) 245 if (op->resist[j] == 0 && change->resist[j] != 0)
331void 256void
332set_materialname (object *op, int difficulty, materialtype_t *nmt) 257set_materialname (object *op, int difficulty, materialtype_t *nmt)
333{ 258{
334 materialtype_t *mt, *lmt; 259 materialtype_t *mt, *lmt;
335 260
336#ifdef NEW_MATERIAL_CODE
337 int j;
338#endif
339
340 if (op->materialname != NULL) 261 if (!op->materialname)
341 return; 262 return;
342 263
343 264 if (nmt)
344 265 lmt = nmt;
345 if (nmt == NULL) 266 else
346 { 267 {
347 lmt = NULL; 268 lmt = 0;
348#ifndef NEW_MATERIAL_CODE 269
349 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 270 for (mt = materialt; mt; mt = mt->next)
350 { 271 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
351 if (op->material & mt->material) 272 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
352 { 273 {
353 lmt = mt; 274 lmt = mt;
275 if (!(op->is_weapon () || op->is_armor ()))
354 break; 276 break;
355 } 277 }
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 }
371 else
372 { 278 }
373 lmt = nmt; 279
280 if (lmt)
374 } 281 {
375
376 if (lmt != NULL)
377 {
378#ifndef NEW_MATERIAL_CODE
379 op->materialname = lmt->name;
380 return;
381#else
382
383 if (op->stats.dam && op->is_weapon ()) 282 if (op->stats.dam && op->is_weapon ())
384 { 283 {
385 op->stats.dam += lmt->damage; 284 op->stats.dam += lmt->damage;
386 if (op->stats.dam < 1) 285 if (op->stats.dam < 1)
387 op->stats.dam = 1; 286 op->stats.dam = 1;
388 } 287 }
288
389 if (op->stats.sp && op->type == BOW) 289 if (op->stats.sp && op->type == BOW)
390 op->stats.sp += lmt->sp; 290 op->stats.sp += lmt->sp;
391 if (op->stats.wc && op->is_weapon ()) 291 if (op->stats.wc && op->is_weapon ())
392 op->stats.wc += lmt->wc; 292 op->stats.wc += lmt->wc;
393 if (op->is_armor ()) 293 if (op->is_armor ())
394 { 294 {
395 if (op->stats.ac) 295 if (op->stats.ac)
396 op->stats.ac += lmt->ac; 296 op->stats.ac += lmt->ac;
297
397 for (j = 0; j < NROFATTACKS; j++) 298 for (int j = 0; j < NROFATTACKS; j++)
398 if (op->resist[j] != 0) 299 if (op->resist[j] != 0)
399 { 300 {
400 op->resist[j] += lmt->mod[j]; 301 op->resist[j] += lmt->mod[j];
401 if (op->resist[j] > 100) 302 if (op->resist[j] > 100)
402 op->resist[j] = 100; 303 op->resist[j] = 100;
403 if (op->resist[j] < -100) 304 if (op->resist[j] < -100)
404 op->resist[j] = -100; 305 op->resist[j] = -100;
405 } 306 }
406 } 307 }
308
407 op->materialname = add_string (lmt->name); 309 op->materialname = lmt->name;
408 /* dont make it unstackable if it doesn't need to be */ 310 /* dont make it unstackable if it doesn't need to be */
409 if (op->is_weapon () || op->is_armor ()) 311 if (op->is_weapon () || op->is_armor ())
410 { 312 {
411 op->weight = (op->weight * lmt->weight) / 100; 313 op->weight = (op->weight * lmt->weight) / 100;
412 op->value = (op->value * lmt->value) / 100; 314 op->value = (op->value * lmt->value) / 100;
413 } 315 }
414#endif
415 } 316 }
416} 317}
417 318
418/* 319/*
419 * Strip out the media tags from a String. 320 * Strip out the media tags from a String.
514 * 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
515 * 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.
516 * This function will also strip all trailing non alphanumeric characters. 417 * This function will also strip all trailing non alphanumeric characters.
517 * It does not insert an oxford comma. 418 * It does not insert an oxford comma.
518 */ 419 */
519
520void 420void
521make_list_like (char *input) 421make_list_like (char *input)
522{ 422{
523 char *p, tmp[MAX_BUF]; 423 char *p, tmp[MAX_BUF];
524 int i; 424 int i;
554void 454void
555fork_abort (const char *msg) 455fork_abort (const char *msg)
556{ 456{
557 if (!fork ()) 457 if (!fork ())
558 { 458 {
459 signal (SIGINT , SIG_IGN);
460 signal (SIGTERM, SIG_IGN);
559 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);
560 abort (); 492 abort ();
561 } 493 }
562 494
563 LOG (llevError, "fork abort: %s\n", msg); 495 LOG (llevError, "fork abort: %s\n", msg);
564} 496}
568 void *ptr = g_slice_alloc (n); 500 void *ptr = g_slice_alloc (n);
569 501
570 if (!ptr) 502 if (!ptr)
571 throw std::bad_alloc (); 503 throw std::bad_alloc ();
572 504
505 slice_alloc += n;
573 return ptr; 506 return ptr;
574} 507}
575 508
576void *salloc_ (int n, void *src) throw (std::bad_alloc) 509void *salloc_ (int n, void *src) throw (std::bad_alloc)
577{ 510{
583 memset (ptr, 0, n); 516 memset (ptr, 0, n);
584 517
585 return ptr; 518 return ptr;
586} 519}
587 520
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
588void assign (char *dst, const char *src, int maxlen) 565assign (char *dst, const char *src, int maxsize)
589{ 566{
590 if (!src) 567 if (!src)
591 src = ""; 568 src = "";
592 569
593 int len = strlen (src); 570 int len = strlen (src);
594 571
595 if (len >= maxlen - 1) 572 if (len >= maxsize)
596 { 573 {
597 if (maxlen <= 4) 574 if (maxsize <= 4)
598 { 575 {
599 memset (dst, '.', maxlen - 1); 576 memset (dst, '.', maxsize - 2);
600 dst [maxlen - 1] = 0; 577 dst [maxsize - 1] = 0;
601 } 578 }
602 else 579 else
603 { 580 {
604 memcpy (dst, src, maxlen - 4); 581 memcpy (dst, src, maxsize - 4);
605 memcpy (dst + maxlen - 4, "...", 4); 582 memcpy (dst + maxsize - 4, "...", 4);
606 } 583 }
584
585 len = maxsize;
607 } 586 }
608 else 587 else
609 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;
610} 606}
611 607
612tstamp now () 608tstamp now ()
613{ 609{
614 struct timeval tv; 610 struct timeval tv;
625 621
626 int diff = (b - a) & 7; 622 int diff = (b - a) & 7;
627 return diff <= 1 || diff >= 7; 623 return diff <= 1 || diff >= 7;
628} 624}
629 625
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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