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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.24 by root, Sat Dec 16 21:40:26 2006 UTC vs.
Revision 1.92 by root, Tue Nov 3 23:18:23 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 deliantra.
26 */ 27 */
27 28
28#include <global.h> 29#include <cstdlib>
30#include <sys/types.h>
29#include <funcpoint.h> 31#include <unistd.h>
30#include <material.h>
31
32#include <sys/time.h> 32#include <sys/time.h>
33#include <time.h> 33#include <time.h>
34#include <signal.h>
35
36#include <global.h>
37#include <material.h>
38#include <object.h>
39
40#include <sys/time.h>
41#include <sys/resource.h>
42
34#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>;
35 89
36/* 90/*
37 * The random functions here take luck into account when rolling random 91 * The random functions here take luck into account when rolling random
38 * 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
39 * difference becomes in the random numbers. IE, the effect is lessened 93 * difference becomes in the random numbers. IE, the effect is lessened
… …
46 * 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,
47 * 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.
48 * Generally, op should be the player/caster/hitter requesting the roll, 102 * Generally, op should be the player/caster/hitter requesting the roll,
49 * not the recipient (ie, the poor slob getting hit). [garbled 20010916] 103 * not the recipient (ie, the poor slob getting hit). [garbled 20010916]
50 */ 104 */
51
52int 105int
53random_roll (int min, int max, const object *op, int goodbad) 106random_roll (int r_min, int r_max, const object *op, int goodbad)
54{ 107{
55 int omin, diff, luck, base, ran; 108 r_max = max (r_min, r_max);
56 109
57 omin = min; 110 int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
58 diff = max - min + 1;
59 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
60 111
61 if (max < 1 || diff < 1)
62 {
63 LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
64 return (min); /* avoids a float exception */
65 }
66
67 ran = RANDOM ();
68
69 if (op->type != PLAYER) 112 if (op->type == PLAYER)
70 return ((ran % diff) + min); 113 {
71
72 luck = op->stats.luck; 114 int luck = op->stats.luck;
73 if (RANDOM () % base < MIN (10, abs (luck))) 115
116 if (rndm (base) < min (10, abs (luck)))
117 {
118 //TODO: take luck into account
119 }
74 { 120 }
75 /* we have a winner */
76 ((luck > 0) ? (luck = 1) : (luck = -1));
77 diff -= luck;
78 if (diff < 1)
79 return (omin); /*check again */
80 ((goodbad) ? (min += luck) : (diff));
81 121
82 return (MAX (omin, MIN (max, (ran % diff) + min))); 122 return rndm (r_min, r_max);
83 }
84 return ((ran % diff) + min);
85} 123}
86 124
87/* 125/*
88 * 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
89 * for exp loss calculations for players changing religions. 127 * for exp loss calculations for players changing religions.
90 */ 128 */
91
92sint64 129sint64
93random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) 130random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
94{ 131{
95 sint64 omin, diff, luck, ran; 132 sint64 omin = r_min;
96 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 */
97 135
98 omin = min; 136 /*
99 diff = max - min + 1;
100 ((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
101
102 if (max < 1 || diff < 1)
103 {
104 LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
105 return (min); /* avoids a float exception */
106 }
107
108 /* Don't know of a portable call to get 64 bit random values.
109 * 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
110 * a little byteshifting. Do make sure the first one is only 138 * a little bitshifting.
111 * 32 bit, so we don't get skewed results
112 */ 139 */
113 ran = (RANDOM () & 0xffffffff) | ((sint64) RANDOM () << 32); 140 sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
114 141
115 if (op->type != PLAYER) 142 if (op->type != PLAYER)
116 return ((ran % diff) + min); 143 return ((ran % range) + r_min);
117 144
118 luck = op->stats.luck; 145 int luck = op->stats.luck;
146
119 if (RANDOM () % base < MIN (10, abs (luck))) 147 if (rndm (base) < min (10, abs (luck)))
120 { 148 {
121 /* we have a winner */ 149 /* we have a winner */
122 ((luck > 0) ? (luck = 1) : (luck = -1)); 150 ((luck > 0) ? (luck = 1) : (luck = -1));
123 diff -= luck; 151 range -= luck;
124 if (diff < 1) 152 if (range < 1)
125 return (omin); /*check again */ 153 return (omin); /*check again */
154
126 ((goodbad) ? (min += luck) : (diff)); 155 ((goodbad) ? (r_min += luck) : (range));
127 156
128 return (MAX (omin, MIN (max, (ran % diff) + min))); 157 return (max (omin, min (r_max, (ran % range) + r_min)));
129 } 158 }
130 return ((ran % diff) + min); 159
160 return ran % range + r_min;
131} 161}
132 162
133/* 163/*
134 * 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,
135 * 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.
136 * Generally, op should be the player/caster/hitter requesting the roll, 166 * Generally, op should be the player/caster/hitter requesting the roll,
137 * not the recipient (ie, the poor slob getting hit). 167 * not the recipient (ie, the poor slob getting hit).
138 * The args are num D size (ie 4d6) [garbled 20010916] 168 * The args are num D size (ie 4d6) [garbled 20010916]
139 */ 169 */
140
141int 170int
142die_roll (int num, int size, const object *op, int goodbad) 171die_roll (int num, int size, const object *op, int goodbad)
143{ 172{
144 int min, diff, luck, total, i, gotlucky, base, ran; 173 int min, luck, total, i, gotlucky;
145 174
146 diff = size; 175 int diff = size;
147 min = 1; 176 min = 1;
148 luck = total = gotlucky = 0; 177 luck = total = gotlucky = 0;
149 ((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
150 if (size < 2 || diff < 1) 180 if (size < 2 || diff < 1)
151 { 181 {
152 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);
153 return (num); /* avoids a float exception */ 183 return num; /* avoids a float exception */
154 } 184 }
155 185
156 if (op->type == PLAYER) 186 if (op->type == PLAYER)
157 luck = op->stats.luck; 187 luck = op->stats.luck;
158 188
159 for (i = 0; i < num; i++) 189 for (i = 0; i < num; i++)
160 { 190 {
161 if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky) 191 if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
162 { 192 {
163 /* we have a winner */ 193 /* we have a winner */
164 gotlucky++; 194 gotlucky++;
165 ((luck > 0) ? (luck = 1) : (luck = -1)); 195 ((luck > 0) ? (luck = 1) : (luck = -1));
166 diff -= luck; 196 diff -= luck;
167 if (diff < 1) 197 if (diff < 1)
168 return (num); /*check again */ 198 return (num); /*check again */
169 ((goodbad) ? (min += luck) : (diff)); 199 ((goodbad) ? (min += luck) : (diff));
170 ran = RANDOM ();
171 total += MAX (1, MIN (size, (ran % diff) + min)); 200 total += MAX (1, MIN (size, rndm (diff) + min));
172 } 201 }
173 else 202 else
174 {
175 total += RANDOM () % size + 1; 203 total += rndm (size) + 1;
176 }
177 } 204 }
205
178 return (total); 206 return total;
179}
180
181/*
182 * Another convenience function. Returns a number between min and max.
183 * It is suggested one use these functions rather than RANDOM()%, as it
184 * would appear that a number of off-by-one-errors exist due to improper
185 * use of %. This should also prevent SIGFPE.
186 */
187
188int
189rndm (int min, int max)
190{
191 int diff;
192
193 diff = max - min + 1;
194 if (max < 1 || diff < 1)
195 return (min);
196
197 return (RANDOM () % diff + min);
198}
199
200/* decay and destroy persihable items in a map */
201
202void
203decay_objects (maptile *m)
204{
205 int x, y, destroy;
206 object *op, *otmp;
207
208 if (m->unique)
209 return;
210
211 for (x = 0; x < MAP_WIDTH (m); x++)
212 for (y = 0; y < MAP_HEIGHT (m); y++)
213 for (op = get_map_ob (m, x, y); op; op = otmp)
214 {
215 destroy = 0;
216 otmp = op->above;
217 if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
218 break;
219 if (QUERY_FLAG (op, FLAG_IS_FLOOR) ||
220 QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) ||
221 QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) ||
222 QUERY_FLAG (op, FLAG_UNIQUE) || QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) || QUERY_FLAG (op, FLAG_UNPAID) || IS_LIVE (op))
223 continue;
224 /* otherwise, we decay and destroy */
225 if (IS_WEAPON (op))
226 {
227 op->stats.dam--;
228 if (op->stats.dam < 0)
229 destroy = 1;
230 }
231 else if (IS_ARMOR (op))
232 {
233 op->stats.ac--;
234 if (op->stats.ac < 0)
235 destroy = 1;
236 }
237 else if (op->type == FOOD)
238 {
239 op->stats.food -= rndm (5, 20);
240 if (op->stats.food < 0)
241 destroy = 1;
242 }
243 else
244 {
245 if (op->material & M_PAPER || op->material & M_LEATHER ||
246 op->material & M_WOOD || op->material & M_ORGANIC || op->material & M_CLOTH || op->material & M_LIQUID)
247 destroy = 1;
248 if (op->material & M_IRON && rndm (1, 5) == 1)
249 destroy = 1;
250 if (op->material & M_GLASS && rndm (1, 2) == 1)
251 destroy = 1;
252 if ((op->material & M_STONE || op->material & M_ADAMANT) && rndm (1, 10) == 1)
253 destroy = 1;
254 if ((op->material & M_SOFT_METAL || op->material & M_BONE) && rndm (1, 3) == 1)
255 destroy = 1;
256 if (op->material & M_ICE && MAP_TEMP (m) > 32)
257 destroy = 1;
258 }
259 /* adjust overall chance below */
260 if (destroy && rndm (0, 1))
261 op->destroy ();
262 }
263} 207}
264 208
265/* convert materialname to materialtype_t */ 209/* convert materialname to materialtype_t */
266 210
267materialtype_t * 211materialtype_t *
268name_to_material (const char *name) 212name_to_material (const shstr_cmp name)
269{ 213{
270 materialtype_t *mt, *nmt; 214 for (materialtype_t *mt = materialt; mt; mt = mt->next)
215 if (name == mt->name)
216 return mt;
271 217
272 mt = NULL;
273 for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
274 {
275 if (strcmp (name, nmt->name) == 0)
276 {
277 mt = nmt;
278 break;
279 }
280 }
281 return mt; 218 return 0;
282} 219}
283 220
284/* when doing transmutation of objects, we have to recheck the resistances, 221/* when doing transmutation of objects, we have to recheck the resistances,
285 * as some that did not apply previously, may apply now. 222 * as some that did not apply previously, may apply now.
286 */ 223 */
287
288void 224void
289transmute_materialname (object *op, const object *change) 225transmute_materialname (object *op, const object *change)
290{ 226{
291 materialtype_t *mt; 227 materialtype_t *mt;
292 int j; 228 int j;
293 229
294 if (op->materialname == NULL) 230 if (!op->materialname)
295 return; 231 return;
296 232
297 if (change->materialname != NULL && strcmp (op->materialname, change->materialname)) 233 if (op->materialname != change->materialname)
298 return; 234 return;
299 235
300 if (!IS_ARMOR (op)) 236 if (!op->is_armor ())
301 return; 237 return;
302 238
303 mt = name_to_material (op->materialname); 239 mt = name_to_material (op->materialname);
304 if (!mt) 240 if (!mt)
305 { 241 {
306 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);
307 return; 243 return;
308 } 244 }
309 245
310 for (j = 0; j < NROFATTACKS; j++) 246 for (j = 0; j < NROFATTACKS; j++)
311 if (op->resist[j] == 0 && change->resist[j] != 0) 247 if (op->resist[j] == 0 && change->resist[j] != 0)
… …
322void 258void
323set_materialname (object *op, int difficulty, materialtype_t *nmt) 259set_materialname (object *op, int difficulty, materialtype_t *nmt)
324{ 260{
325 materialtype_t *mt, *lmt; 261 materialtype_t *mt, *lmt;
326 262
327#ifdef NEW_MATERIAL_CODE
328 int j;
329#endif
330
331 if (op->materialname != NULL) 263 if (!op->materialname)
332 return; 264 return;
333 265
334 266 if (nmt)
335 267 lmt = nmt;
336 if (nmt == NULL) 268 else
337 { 269 {
338 lmt = NULL; 270 lmt = 0;
339#ifndef NEW_MATERIAL_CODE 271
340 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next) 272 for (mt = materialt; mt; mt = mt->next)
341 { 273 if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
342 if (op->material & mt->material) 274 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
343 { 275 {
344 lmt = mt; 276 lmt = mt;
277 if (!(op->is_weapon () || op->is_armor ()))
345 break; 278 break;
346 } 279 }
347 }
348
349#else
350 for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
351 {
352 if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
353 difficulty >= mt->difficulty && (op->magic >= mt->magic || mt->magic == 0))
354 {
355 lmt = mt;
356 if (!(IS_WEAPON (op) || IS_ARMOR (op)))
357 break;
358 }
359 }
360#endif
361 }
362 else
363 { 280 }
364 lmt = nmt; 281
282 if (lmt)
365 } 283 {
366 284 if (op->stats.dam && op->is_weapon ())
367 if (lmt != NULL)
368 {
369#ifndef NEW_MATERIAL_CODE
370 op->materialname = lmt->name;
371 return;
372#else
373
374 if (op->stats.dam && IS_WEAPON (op))
375 { 285 {
376 op->stats.dam += lmt->damage; 286 op->stats.dam += lmt->damage;
377 if (op->stats.dam < 1) 287 if (op->stats.dam < 1)
378 op->stats.dam = 1; 288 op->stats.dam = 1;
379 } 289 }
290
380 if (op->stats.sp && op->type == BOW) 291 if (op->stats.sp && op->type == BOW)
381 op->stats.sp += lmt->sp; 292 op->stats.sp += lmt->sp;
382 if (op->stats.wc && IS_WEAPON (op)) 293 if (op->stats.wc && op->is_weapon ())
383 op->stats.wc += lmt->wc; 294 op->stats.wc += lmt->wc;
384 if (IS_ARMOR (op)) 295 if (op->is_armor ())
385 { 296 {
386 if (op->stats.ac) 297 if (op->stats.ac)
387 op->stats.ac += lmt->ac; 298 op->stats.ac += lmt->ac;
299
388 for (j = 0; j < NROFATTACKS; j++) 300 for (int j = 0; j < NROFATTACKS; j++)
389 if (op->resist[j] != 0) 301 if (op->resist[j] != 0)
390 { 302 {
391 op->resist[j] += lmt->mod[j]; 303 op->resist[j] += lmt->mod[j];
392 if (op->resist[j] > 100) 304 if (op->resist[j] > 100)
393 op->resist[j] = 100; 305 op->resist[j] = 100;
394 if (op->resist[j] < -100) 306 if (op->resist[j] < -100)
395 op->resist[j] = -100; 307 op->resist[j] = -100;
396 } 308 }
397 } 309 }
310
398 op->materialname = add_string (lmt->name); 311 op->materialname = lmt->name;
399 /* dont make it unstackable if it doesn't need to be */ 312 /* dont make it unstackable if it doesn't need to be */
400 if (IS_WEAPON (op) || IS_ARMOR (op)) 313 if (op->is_weapon () || op->is_armor ())
401 { 314 {
402 op->weight = (op->weight * lmt->weight) / 100; 315 op->weight = (op->weight * lmt->weight) / 100;
403 op->value = (op->value * lmt->value) / 100; 316 op->value = (op->value * lmt->value) / 100;
404 } 317 }
405#endif
406 } 318 }
407} 319}
408 320
409/* 321/*
410 * Strip out the media tags from a String. 322 * Strip out the media tags from a String.
… …
498 } 410 }
499 } 411 }
500 result[resultlen] = '\0'; 412 result[resultlen] = '\0';
501} 413}
502 414
503/** 415/******************************************************************************/
504 * Taking a string as an argument, mutate it into a string that looks like a list. 416
505 * 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
506 * for the last entry, which has an 'and' before it, and a full stop (period) after it. 418 * an object for dangerous input.
507 * This function will also strip all trailing non alphanumeric characters.
508 * It does not insert an oxford comma.
509 */ 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/////////////////////////////////////////////////////////////////////////////
510 438
511void 439void
512make_list_like (char *input) 440fork_abort (const char *msg)
513{ 441{
514 char *p, tmp[MAX_BUF]; 442 if (!fork ())
515 int i; 443 {
444 signal (SIGINT , SIG_IGN);
445 signal (SIGTERM, SIG_IGN);
446 signal (SIGABRT, SIG_IGN);
516 447
517 if (!input || strlen (input) > MAX_BUF - 5) 448 signal (SIGSEGV, SIG_DFL);
518 return; 449 signal (SIGBUS , SIG_DFL);
519 /* 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);
520 452
521 strncpy (tmp, input, MAX_BUF - 5); 453 // try to put corefiles into a subdirectory, if existing, to allow
522 /*trim all trailing commas, spaces etc. */ 454 // an administrator to reduce the I/O load.
523 for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--) 455 chdir ("cores");
524 tmp[i] = '\0';
525 456
526 strcat (tmp, "."); 457 // try to detach us from as many external dependencies as possible
527 458 // as coredumping can take time by closing all fd's.
528 p = strrchr (tmp, ',');
529 if (p)
530 { 459 {
531 *p = '\0'; 460 struct rlimit lim;
532 strcpy (input, tmp); 461
533 p++; 462 if (getrlimit (RLIMIT_NOFILE, &lim))
534 strcat (input, " and"); 463 lim.rlim_cur = 1024;
535 strcat (input, p); 464
465 for (int i = 0; i < lim.rlim_cur; ++i)
466 close (i);
536 } 467 }
537 else
538 strcpy (input, tmp);
539 468
540 return; 469 {
541} 470 sigset_t empty;
471 sigemptyset (&empty);
472 sigprocmask (SIG_SETMASK, &empty, 0);
473 }
542 474
543///////////////////////////////////////////////////////////////////////////// 475 // try to coredump with SIGTRAP
476 kill (getpid (), SIGTRAP);
477 abort ();
478 }
544 479
545#if 0 480 LOG (llevError, "fork abort: %s\n", msg);
546refcounted *refcounted::rc_first;
547
548refcounted::refcounted ()
549{
550 refcnt = 0;
551 rc_next = rc_first;
552 rc_first = this;
553} 481}
554 482
555refcounted::~refcounted ()
556{
557 assert (!rc_next);
558 assert (!refcnt);
559}
560#endif
561
562void *salloc (int size) throw (std::bad_alloc) 483void *salloc_ (int n) throw (std::bad_alloc)
563{ 484{
564 void *ptr = g_slice_alloc (size); 485 void *ptr = g_slice_alloc (n);
565 486
566 if (!ptr) 487 if (!ptr)
567 throw std::bad_alloc (); 488 throw std::bad_alloc ();
568 489
490 slice_alloc += n;
569 return ptr; 491 return ptr;
570} 492}
571 493
572void *salloc (int size, void *src) throw (std::bad_alloc) 494void *salloc_ (int n, void *src) throw (std::bad_alloc)
573{ 495{
574 void *ptr = salloc (size); 496 void *ptr = salloc_ (n);
575 497
576 if (src) 498 if (src)
577 memcpy (ptr, src, size); 499 memcpy (ptr, src, n);
578 else 500 else
579 memset (ptr, 0, size); 501 memset (ptr, 0, n);
580 502
581 return ptr; 503 return ptr;
582} 504}
583 505
506/******************************************************************************/
507
508#if DEBUG_SALLOC
509
510#define MAGIC 0xa1b2c35543deadLL
511
512void *g_slice_alloc (unsigned long size)
513{
514 unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long));
515 *p++ = size ^ MAGIC;
516 //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
517 return (void *)p;
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
545#endif
546
547/******************************************************************************/
548
549int
584void assign (char *dst, const char *src, int maxlen) 550assign (char *dst, const char *src, int maxsize)
585{ 551{
586 if (!src) 552 if (!src)
587 src = ""; 553 src = "";
588 554
589 int len = strlen (src); 555 int len = strlen (src);
590 556
591 if (len >= maxlen - 1) 557 if (len >= maxsize)
592 { 558 {
593 if (maxlen <= 4) 559 if (maxsize <= 4)
594 { 560 {
595 memset (dst, '.', maxlen - 1); 561 memset (dst, '.', maxsize - 2);
596 dst [maxlen - 1] = 0; 562 dst [maxsize - 1] = 0;
597 } 563 }
598 else 564 else
599 { 565 {
600 memcpy (dst, src, maxlen - 4); 566 memcpy (dst, src, maxsize - 4);
601 memcpy (dst + maxlen - 4, "...", 4); 567 memcpy (dst + maxsize - 4, "...", 4);
602 } 568 }
569
570 len = maxsize;
603 } 571 }
604 else 572 else
605 memcpy (dst, src, len + 1); 573 memcpy (dst, src, ++len);
574
575 return len;
576}
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;
606} 595}
607 596
608tstamp now () 597tstamp now ()
609{ 598{
610 struct timeval tv; 599 struct timeval tv;
611 600
612 gettimeofday (&tv, 0); 601 gettimeofday (&tv, 0);
613 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6); 602 return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
614} 603}
615 604
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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