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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.22 by root, Tue Dec 12 21:39:56 2006 UTC vs.
Revision 1.91 by root, Tue Oct 20 05:57:08 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 (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4 Copyright (C) 2002 Mark Wedel & Crossfire Development Team 5 * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
5 Copyright (C) 1992 Frank Tore Johansen 6 * Copyright (©) 1992,2007 Frank Tore Johansen
6 7 *
7 This program is free software; you can redistribute it and/or modify 8 * Deliantra is free software: you can redistribute it and/or modify it under
8 it under the terms of the GNU General Public License as published by 9 * the terms of the Affero GNU General Public License as published by the
9 the Free Software Foundation; either version 2 of the License, or 10 * Free Software Foundation, either version 3 of the License, or (at your
10 (at your option) any later version. 11 * option) any later version.
11 12 *
12 This program is distributed in the hope that it will be useful, 13 * This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details. 16 * GNU General Public License for more details.
16 17 *
17 You should have received a copy of the GNU General Public License 18 * You should have received a copy of the Affero GNU General Public License
18 along with this program; if not, write to the Free Software 19 * and the GNU General Public License along with this program. If not, see
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 * <http://www.gnu.org/licenses/>.
20 21 *
21 The authors can be reached via e-mail at <crossfire@schmorp.de> 22 * The authors can be reached via e-mail to <support@deliantra.net>
22*/ 23 */
23 24
24/* 25/*
25 * General convenience functions for crossfire. 26 * General convenience functions for crossfire.
26 */ 27 */
27 28
29#include <cstdlib>
30#include <sys/types.h>
31#include <unistd.h>
32#include <sys/time.h>
33#include <time.h>
34#include <signal.h>
35
28#include <global.h> 36#include <global.h>
29#include <funcpoint.h>
30#include <material.h> 37#include <material.h>
38#include <object.h>
39
40#include <sys/time.h>
41#include <sys/resource.h>
31 42
32#include <glib.h> 43#include <glib.h>
44
45refcnt_base::refcnt_t refcnt_dummy;
46ssize_t slice_alloc;
47rand_gen rndm, rmg_rndm;
48
49void
50tausworthe_random_generator::seed (uint32_t seed)
51{
52 state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
53 state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
54 state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
55 state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
56
57 for (int i = 11; --i; )
58 next ();
59}
60
61uint32_t
62tausworthe_random_generator::next ()
63{
64 state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
65 state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
66 state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
67 state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
68
69 return state [0] ^ state [1] ^ state [2] ^ state [3];
70}
71
72template<class generator>
73uint32_t
74random_number_generator<generator>::get_range (uint32_t num)
75{
76 return (this->next () * (uint64_t)num) >> 32U;
77}
78
79// return a number within (min .. max)
80template<class generator>
81int
82random_number_generator<generator>::get_range (int r_min, int r_max)
83{
84 return r_min + get_range (max (r_max - r_min + 1, 0));
85}
86
87template struct random_number_generator<tausworthe_random_generator>;
88template struct random_number_generator<xorshift_random_generator>;
33 89
34/* 90/*
35 * The random functions here take luck into account when rolling random 91 * The random functions here take luck into account when rolling random
36 * dice or numbers. This function has less of an impact the larger the 92 * dice or numbers. This function has less of an impact the larger the
37 * difference becomes in the random numbers. IE, the effect is lessened 93 * difference becomes in the random numbers. IE, the effect is lessened
… …
44 * Roll a random number between min and max. Uses op to determine luck, 100 * Roll a random number between min and max. Uses op to determine luck,
45 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases. 101 * and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
46 * Generally, op should be the player/caster/hitter requesting the roll, 102 * Generally, op should be the player/caster/hitter requesting the roll,
47 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 103 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
48 */ 104 */
49
50int 105int
51random_roll (int min, int max, const object *op, int goodbad) 106random_roll (int r_min, int r_max, const object *op, int goodbad)
52{ 107{
53 int omin, diff, luck, base, ran; 108 r_max = max (r_min, r_max);
54 109
55 omin = min; 110 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
56 diff = max - min + 1;
57 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
58 111
59 if (max < 1 || diff < 1)
60 {
61 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
62 return (min); /* avoids a float exception */
63 }
64
65 ran = RANDOM ();
66
67 if (op->type != PLAYER) 112 if (op->type == PLAYER)
68 return ((ran % diff) + min); 113 {
69
70 luck = op->stats.luck; 114 int luck = op->stats.luck;
71 if (RANDOM () % base < MIN (10, abs (luck))) 115
116 if (rndm (base) < min (10, abs (luck)))
117 {
118 //TODO: take luck into account
119 }
72 { 120 }
73 /* we have a winner */
74 ((luck > 0) ? (luck = 1) : (luck = -1));
75 diff -= luck;
76 if (diff < 1)
77 return (omin); /*check again */
78 ((goodbad) ? (min += luck) : (diff));
79 121
80 return (MAX (omin, MIN (max, (ran % diff) + min))); 122 return rndm (r_min, r_max);
81 }
82 return ((ran % diff) + min);
83} 123}
84 124
85/* 125/*
86 * This is a 64 bit version of random_roll above. This is needed 126 * This is a 64 bit version of random_roll above. This is needed
87 * for exp loss calculations for players changing religions. 127 * for exp loss calculations for players changing religions.
88 */ 128 */
89
90sint64 129sint64
91random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 130random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
92{ 131{
93 sint64 omin, diff, luck, ran; 132 sint64 omin = r_min;
94 int base; 133 sint64 range = max (0, r_max - r_min + 1);
134 int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
95 135
96 omin = min; 136 /*
97 diff = max - min + 1;
98 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
99
100 if (max < 1 || diff < 1)
101 {
102 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
103 return (min); /* avoids a float exception */
104 }
105
106 /* Don't know of a portable call to get 64 bit random values.
107 * So make a call to get two 32 bit random numbers, and just to 137 * Make a call to get two 32 bit unsigned random numbers, and just to
108 * a little byteshifting. Do make sure the first one is only 138 * a little bitshifting.
109 * 32 bit, so we don't get skewed results
110 */ 139 */
111 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 140 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
112 141
113 if (op->type != PLAYER) 142 if (op->type != PLAYER)
114 return ((ran % diff) + min); 143 return ((ran % range) + r_min);
115 144
116 luck = op->stats.luck; 145 int luck = op->stats.luck;
146
117 if (RANDOM () % base < MIN (10, abs (luck))) 147 if (rndm (base) < min (10, abs (luck)))
118 { 148 {
119 /* we have a winner */ 149 /* we have a winner */
120 ((luck > 0) ? (luck = 1) : (luck = -1)); 150 ((luck > 0) ? (luck = 1) : (luck = -1));
121 diff -= luck; 151 range -= luck;
122 if (diff < 1) 152 if (range < 1)
123 return (omin); /*check again */ 153 return (omin); /*check again */
154
124 ((goodbad) ? (min += luck) : (diff)); 155 ((goodbad) ? (r_min += luck) : (range));
125 156
126 return (MAX (omin, MIN (max, (ran % diff) + min))); 157 return (max (omin, min (r_max, (ran % range) + r_min)));
127 } 158 }
128 return ((ran % diff) + min); 159
160 return ran % range + r_min;
129} 161}
130 162
131/* 163/*
132 * Roll a number of dice (2d3, 4d6). Uses op to determine luck, 164 * Roll a number of dice (2d3, 4d6). Uses op to determine luck,
133 * If goodbad is non-zero, luck increases the roll, if zero, it decreases. 165 * If goodbad is non-zero, luck increases the roll, if zero, it decreases.
134 * Generally, op should be the player/caster/hitter requesting the roll, 166 * Generally, op should be the player/caster/hitter requesting the roll,
135 * not the recipient (ie, the poor slob getting hit). 167 * not the recipient (ie, the poor slob getting hit).
136 * The args are num D size (ie 4d6) [garbled 20010916] 168 * The args are num D size (ie 4d6) [garbled 20010916]
137 */ 169 */
138
139int 170int
140die_roll (int num, int size, const object *op, int goodbad) 171die_roll (int num, int size, const object *op, int goodbad)
141{ 172{
142 int min, diff, luck, total, i, gotlucky, base, ran; 173 int min, luck, total, i, gotlucky;
143 174
144 diff = size; 175 int diff = size;
145 min = 1; 176 min = 1;
146 luck = total = gotlucky = 0; 177 luck = total = gotlucky = 0;
147 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */ 178 int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
179
148 if (size < 2 || diff < 1) 180 if (size < 2 || diff < 1)
149 { 181 {
150 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size); 182 LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
151 return (num); /* avoids a float exception */ 183 return num; /* avoids a float exception */
152 } 184 }
153 185
154 if (op->type == PLAYER) 186 if (op->type == PLAYER)
155 luck = op->stats.luck; 187 luck = op->stats.luck;
156 188
157 for (i = 0; i < num; i++) 189 for (i = 0; i < num; i++)
158 { 190 {
159 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 191 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
160 { 192 {
161 /* we have a winner */ 193 /* we have a winner */
162 gotlucky++; 194 gotlucky++;
163 ((luck > 0) ? (luck = 1) : (luck = -1)); 195 ((luck > 0) ? (luck = 1) : (luck = -1));
164 diff -= luck; 196 diff -= luck;
165 if (diff < 1) 197 if (diff < 1)
166 return (num); /*check again */ 198 return (num); /*check again */
167 ((goodbad) ? (min += luck) : (diff)); 199 ((goodbad) ? (min += luck) : (diff));
168 ran = RANDOM ();
169 total += MAX (1, MIN (size, (ran % diff) + min)); 200 total += MAX (1, MIN (size, rndm (diff) + min));
170 } 201 }
171 else 202 else
172 {
173 total += RANDOM () % size + 1; 203 total += rndm (size) + 1;
174 }
175 } 204 }
205
176 return (total); 206 return total;
177}
178
179/*
180 * Another convenience function. Returns a number between min and max.
181 * It is suggested one use these functions rather than RANDOM()%, as it
182 * would appear that a number of off-by-one-errors exist due to improper
183 * use of %. This should also prevent SIGFPE.
184 */
185
186int
187rndm (int min, int max)
188{
189 int diff;
190
191 diff = max - min + 1;
192 if (max < 1 || diff < 1)
193 return (min);
194
195 return (RANDOM () % diff + min);
196}
197
198/* decay and destroy persihable items in a map */
199
200void
201decay_objects (maptile *m)
202{
203 int x, y, destroy;
204 object *op, *otmp;
205
206 if (m->unique)
207 return;
208
209 for (x = 0; x < MAP_WIDTH (m); x++)
210 for (y = 0; y < MAP_HEIGHT (m); y++)
211 for (op = get_map_ob (m, x, y); op; op = otmp)
212 {
213 destroy = 0;
214 otmp = op->above;
215 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
216 break;
217 if (QUERY_FLAG (op, FLAG_IS_FLOOR) ||
218 QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) ||
219 QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) ||
220 QUERY_FLAG (op, FLAG_UNIQUE) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) || QUERY_FLAG (op, FLAG_UNPAID) || IS_LIVE (op))
221 continue;
222 /* otherwise, we decay and destroy */
223 if (IS_WEAPON (op))
224 {
225 op->stats.dam--;
226 if (op->stats.dam < 0)
227 destroy = 1;
228 }
229 else if (IS_ARMOR (op))
230 {
231 op->stats.ac--;
232 if (op->stats.ac < 0)
233 destroy = 1;
234 }
235 else if (op->type == FOOD)
236 {
237 op->stats.food -= rndm (5, 20);
238 if (op->stats.food < 0)
239 destroy = 1;
240 }
241 else
242 {
243 if (op->material & M_PAPER || op->material & M_LEATHER ||
244 op->material & M_WOOD || op->material & M_ORGANIC || op->material & M_CLOTH || op->material & M_LIQUID)
245 destroy = 1;
246 if (op->material & M_IRON && rndm (1, 5) == 1)
247 destroy = 1;
248 if (op->material & M_GLASS && rndm (1, 2) == 1)
249 destroy = 1;
250 if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1)
251 destroy = 1;
252 if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1)
253 destroy = 1;
254 if (op->material & M_ICE && MAP_TEMP (m) > 32)
255 destroy = 1;
256 }
257 /* adjust overall chance below */
258 if (destroy && rndm (0, 1))
259 op->destroy ();
260 }
261} 207}
262 208
263/* convert materialname to materialtype_t */ 209/* convert materialname to materialtype_t */
264 210
265materialtype_t * 211materialtype_t *
266name_to_material (const char *name) 212name_to_material (const shstr_cmp name)
267{ 213{
268 materialtype_t *mt, *nmt; 214 for (materialtype_t *mt = materialt; mt; mt = mt->next)
215 if (name == mt->name)
216 return mt;
269 217
270 mt = NULL;
271 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
272 {
273 if (strcmp (name, nmt->name) == 0)
274 {
275 mt = nmt;
276 break;
277 }
278 }
279 return mt; 218 return 0;
280} 219}
281 220
282/* when doing transmutation of objects, we have to recheck the resistances, 221/* when doing transmutation of objects, we have to recheck the resistances,
283 * as some that did not apply previously, may apply now. 222 * as some that did not apply previously, may apply now.
284 */ 223 */
285
286void 224void
287transmute_materialname (object *op, const object *change) 225transmute_materialname (object *op, const object *change)
288{ 226{
289 materialtype_t *mt; 227 materialtype_t *mt;
290 int j; 228 int j;
291 229
292 if (op->materialname == NULL) 230 if (!op->materialname)
293 return; 231 return;
294 232
295 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 233 if (op->materialname != change->materialname)
296 return; 234 return;
297 235
298 if (!IS_ARMOR (op)) 236 if (!op->is_armor ())
299 return; 237 return;
300 238
301 mt = name_to_material (op->materialname); 239 mt = name_to_material (op->materialname);
302 if (!mt) 240 if (!mt)
303 { 241 {
304 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname); 242 LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
305 return; 243 return;
306 } 244 }
307 245
308 for (j = 0; j < NROFATTACKS; j++) 246 for (j = 0; j < NROFATTACKS; j++)
309 if (op->resist[j] == 0 && change->resist[j] != 0) 247 if (op->resist[j] == 0 && change->resist[j] != 0)
… …
320void 258void
321set_materialname (object *op, int difficulty, materialtype_t *nmt) 259set_materialname (object *op, int difficulty, materialtype_t *nmt)
322{ 260{
323 materialtype_t *mt, *lmt; 261 materialtype_t *mt, *lmt;
324 262
325#ifdef NEW_MATERIAL_CODE
326 int j;
327#endif
328
329 if (op->materialname != NULL) 263 if (!op->materialname)
330 return; 264 return;
331 265
332 266 if (nmt)
333 267 lmt = nmt;
334 if (nmt == NULL) 268 else
335 { 269 {
336 lmt = NULL; 270 lmt = 0;
337#ifndef NEW_MATERIAL_CODE 271
338 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 272 for (mt = materialt; mt; mt = mt->next)
339 { 273 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
340 if (op->material & mt->material) 274 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
341 { 275 {
342 lmt = mt; 276 lmt = mt;
277 if (!(op->is_weapon () || op->is_armor ()))
343 break; 278 break;
344 } 279 }
345 }
346
347#else
348 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
349 {
350 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
351 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
352 {
353 lmt = mt;
354 if (!(IS_WEAPON (op) || IS_ARMOR (op)))
355 break;
356 }
357 }
358#endif
359 }
360 else
361 { 280 }
362 lmt = nmt; 281
282 if (lmt)
363 } 283 {
364 284 if (op->stats.dam && op->is_weapon ())
365 if (lmt != NULL)
366 {
367#ifndef NEW_MATERIAL_CODE
368 op->materialname = lmt->name;
369 return;
370#else
371
372 if (op->stats.dam && IS_WEAPON (op))
373 { 285 {
374 op->stats.dam += lmt->damage; 286 op->stats.dam += lmt->damage;
375 if (op->stats.dam < 1) 287 if (op->stats.dam < 1)
376 op->stats.dam = 1; 288 op->stats.dam = 1;
377 } 289 }
290
378 if (op->stats.sp && op->type == BOW) 291 if (op->stats.sp && op->type == BOW)
379 op->stats.sp += lmt->sp; 292 op->stats.sp += lmt->sp;
380 if (op->stats.wc && IS_WEAPON (op)) 293 if (op->stats.wc && op->is_weapon ())
381 op->stats.wc += lmt->wc; 294 op->stats.wc += lmt->wc;
382 if (IS_ARMOR (op)) 295 if (op->is_armor ())
383 { 296 {
384 if (op->stats.ac) 297 if (op->stats.ac)
385 op->stats.ac += lmt->ac; 298 op->stats.ac += lmt->ac;
299
386 for (j = 0; j < NROFATTACKS; j++) 300 for (int j = 0; j < NROFATTACKS; j++)
387 if (op->resist[j] != 0) 301 if (op->resist[j] != 0)
388 { 302 {
389 op->resist[j] += lmt->mod[j]; 303 op->resist[j] += lmt->mod[j];
390 if (op->resist[j] > 100) 304 if (op->resist[j] > 100)
391 op->resist[j] = 100; 305 op->resist[j] = 100;
392 if (op->resist[j] < -100) 306 if (op->resist[j] < -100)
393 op->resist[j] = -100; 307 op->resist[j] = -100;
394 } 308 }
395 } 309 }
310
396 op->materialname = add_string (lmt->name); 311 op->materialname = lmt->name;
397 /* dont make it unstackable if it doesn't need to be */ 312 /* dont make it unstackable if it doesn't need to be */
398 if (IS_WEAPON (op) || IS_ARMOR (op)) 313 if (op->is_weapon () || op->is_armor ())
399 { 314 {
400 op->weight = (op->weight * lmt->weight) / 100; 315 op->weight = (op->weight * lmt->weight) / 100;
401 op->value = (op->value * lmt->value) / 100; 316 op->value = (op->value * lmt->value) / 100;
402 } 317 }
403#endif
404 } 318 }
405} 319}
406 320
407/* 321/*
408 * Strip out the media tags from a String. 322 * Strip out the media tags from a String.
… …
496 } 410 }
497 } 411 }
498 result[resultlen] = '\0'; 412 result[resultlen] = '\0';
499} 413}
500 414
501/** 415/******************************************************************************/
502 * Taking a string as an argument, mutate it into a string that looks like a list. 416
503 * a 'list' for the purposes here, is a string of items, seperated by commas, except 417/* Checks a player-provided string which will become the msg property of
504 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 418 * an object for dangerous input.
505 * This function will also strip all trailing non alphanumeric characters.
506 * It does not insert an oxford comma.
507 */ 419 */
420bool
421msg_is_safe (const char *msg)
422{
423 bool safe = true;
424
425 /* Trying to cheat by getting data into the object */
426 if (!strncmp (msg, "endmsg", sizeof ("endmsg") - 1)
427 || strstr (msg, "\nendmsg"))
428 safe = false;
429
430 /* Trying to make the object talk, and potentially access arbitrary code */
431 if (object::msg_has_dialogue (msg))
432 safe = false;
433
434 return safe;
435}
436
437/////////////////////////////////////////////////////////////////////////////
508 438
509void 439void
510make_list_like (char *input) 440fork_abort (const char *msg)
511{ 441{
512 char *p, tmp[MAX_BUF]; 442 if (!fork ())
513 int i; 443 {
444 signal (SIGINT , SIG_IGN);
445 signal (SIGTERM, SIG_IGN);
446 signal (SIGABRT, SIG_IGN);
514 447
515 if (!input || strlen (input) > MAX_BUF - 5) 448 signal (SIGSEGV, SIG_DFL);
516 return; 449 signal (SIGBUS , SIG_DFL);
517 /* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */ 450 signal (SIGILL , SIG_DFL);
451 signal (SIGTRAP, SIG_DFL);
518 452
519 strncpy (tmp, input, MAX_BUF - 5); 453 // try to put corefiles into a subdirectory, if existing, to allow
520 /*trim all trailing commas, spaces etc. */ 454 // an administrator to reduce the I/O load.
521 for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) 455 chdir ("cores");
522 tmp[i] = '\0';
523 456
524 strcat (tmp, "."); 457 // try to detach us from as many external dependencies as possible
458 // as coredumping can take time by closing all fd's.
459 {
460 struct rlimit lim;
525 461
526 p = strrchr (tmp, ','); 462 if (getrlimit (RLIMIT_NOFILE, &lim))
463 lim.rlim_cur = 1024;
464
465 for (int i = 0; i < lim.rlim_cur; ++i)
466 close (i);
467 }
468
469 {
470 sigset_t empty;
471 sigemptyset (&empty);
472 sigprocmask (SIG_SETMASK, &empty, 0);
473 }
474
475 // try to coredump with SIGTRAP
476 kill (getpid (), SIGTRAP);
477 abort ();
478 }
479
480 LOG (llevError, "fork abort: %s\n", msg);
481}
482
483void *salloc_ (int n) throw (std::bad_alloc)
484{
485 void *ptr = g_slice_alloc (n);
486
527 if (p) 487 if (!ptr)
528 { 488 throw std::bad_alloc ();
529 *p = '\0'; 489
530 strcpy (input, tmp); 490 slice_alloc += n;
531 p++; 491 return ptr;
532 strcat (input, " and"); 492}
533 strcat (input, p); 493
534 } 494void *salloc_ (int n, void *src) throw (std::bad_alloc)
495{
496 void *ptr = salloc_ (n);
497
498 if (src)
499 memcpy (ptr, src, n);
535 else 500 else
536 strcpy (input, tmp); 501 memset (ptr, 0, n);
537 502
538 return; 503 return ptr;
539} 504}
540 505
541///////////////////////////////////////////////////////////////////////////// 506/******************************************************************************/
542 507
543#if 0 508#if DEBUG_SALLOC
544refcounted *refcounted::rc_first;
545 509
546refcounted::refcounted () 510#define MAGIC 0xa1b2c35543deadLL
547{
548 refcnt = 0;
549 rc_next = rc_first;
550 rc_first = this;
551}
552 511
553refcounted::~refcounted () 512void *g_slice_alloc (unsigned long size)
554{ 513{
555 assert (!rc_next); 514 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
556 assert (!refcnt); 515 *p++ = size ^ MAGIC;
516 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
517 return (void *)p;
557} 518}
519
520void *g_slice_alloc0 (unsigned long size)
521{
522 return memset (g_slice_alloc (size), 0, size);
523}
524
525void g_slice_free1 (unsigned long size, void *ptr)
526{
527 //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
528 if (expect_true (ptr))
529 {
530 unsigned long *p = (unsigned long *)ptr;
531 unsigned long s = *--p ^ MAGIC;
532
533 if (size != (unsigned long)(*p ^ MAGIC))
534 {
535 LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
536 abort ();
537 }
538
539 *p = MAGIC;
540
541 (g_slice_free1)(s + sizeof (unsigned long), p);
542 }
543}
544
558#endif 545#endif
559 546
560void *alloc (int s) throw (std::bad_alloc) 547/******************************************************************************/
561{
562 void *p = g_slice_alloc (s);
563 548
564 if (!p) 549int
565 throw std::bad_alloc ();
566
567 return p;
568}
569
570void assign (char *dst, const char *src, int maxlen) 550assign (char *dst, const char *src, int maxsize)
571{ 551{
572 if (!src) 552 if (!src)
573 src = ""; 553 src = "";
574 554
575 int len = strlen (src); 555 int len = strlen (src);
576 556
577 if (len >= maxlen - 1) 557 if (len >= maxsize)
578 { 558 {
579 if (maxlen <= 4) 559 if (maxsize <= 4)
580 { 560 {
581 memset (dst, '.', maxlen - 1); 561 memset (dst, '.', maxsize - 2);
582 dst [maxlen - 1] = 0; 562 dst [maxsize - 1] = 0;
583 } 563 }
584 else 564 else
585 { 565 {
586 memcpy (dst, src, maxlen - 4); 566 memcpy (dst, src, maxsize - 4);
587 memcpy (dst + maxlen - 4, "...", 4); 567 memcpy (dst + maxsize - 4, "...", 4);
588 } 568 }
569
570 len = maxsize;
589 } 571 }
590 else 572 else
591 memcpy (dst, src, len + 1); 573 memcpy (dst, src, ++len);
592}
593 574
575 return len;
576}
594 577
578char *
579vformat (const char *format, va_list ap)
580{
581 static dynbuf_text buf; buf.clear ();
582 buf.vprintf (format, ap);
583 return buf;
584}
585
586char *
587format (const char *format, ...)
588{
589 va_list ap;
590 va_start (ap, format);
591 char *buf = vformat (format, ap);
592 va_end (ap);
593
594 return buf;
595}
596
597tstamp now ()
598{
599 struct timeval tv;
600
601 gettimeofday (&tv, 0);
602 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
603}
604
605int
606similar_direction (int a, int b)
607{
608 if (!a || !b)
609 return 0;
610
611 int diff = (b - a) & 7;
612 return diff <= 1 || diff >= 7;
613}
614
615/* crc32 0xdebb20e3 table and supplementary functions. */
616extern const uint32_t crc_32_tab[256] =
617{
618 0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
619 0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
620 0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
621 0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
622 0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
623 0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
624 0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
625 0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
626 0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
627 0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
628 0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
629 0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
630 0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
631 0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
632 0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
633 0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
634 0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
635 0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
636 0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
637 0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
638 0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
639 0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
640 0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
641 0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
642 0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
643 0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
644 0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
645 0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
646 0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
647 0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
648 0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
649 0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
650 0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
651 0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
652 0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
653 0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
654 0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
655 0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
656 0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
657 0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
658 0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
659 0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
660 0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
661 0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
662 0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
663 0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
664 0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
665 0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
666 0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
667 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
668 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
669 0x2d02ef8dL
670};
671
672void thread::start (void *(*start_routine)(void *), void *arg)
673{
674 pthread_attr_t attr;
675
676 pthread_attr_init (&attr);
677 pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
678 pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
679 ? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
680#ifdef PTHREAD_SCOPE_PROCESS
681 pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
682#endif
683
684 sigset_t fullsigset, oldsigset;
685 sigfillset (&fullsigset);
686
687 pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
688
689 if (pthread_create (&id, &attr, start_routine, arg))
690 cleanup ("unable to create a new thread");
691
692 pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
693}
694

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