[ViewVC] Diff of: cvs/deliantra/server/common/utils.C

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.9 by root, Sun Sep 10 16:00:23 2006 UTC vs.
Revision 1.89 by root, Mon Oct 12 14:00:57 2009 UTC

…		…
1
2	/*	1	/*
3	* static char *rcsid_utils_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
4	* "$Id: utils.C,v 1.9 2006/09/10 16:00:23 root Exp $";	3	*
5	*/	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
6
7	/*
8	CrossFire, A Multiplayer game for X-windows
9
10	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
11	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
12		7	*
13	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
14	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
15	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
16	(at your option) any later version.	11	* option) any later version.
17		12	*
18	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,
19	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
20	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21	GNU General Public License for more details.	16	* GNU General Public License for more details.
22		17	*
23	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
24	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
25	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
26		21	*
27	The authors can be reached via e-mail at crossfire-devel@real-time.com	22	* The authors can be reached via e-mail to <support@deliantra.net>
28	*/	23	*/
29		24
30	/*	25	/*
31	* General convenience functions for crossfire.	26	* General convenience functions for crossfire.
32	*/	27	*/
33		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
34	#include <global.h>	36	#include <global.h>
35	#include <funcpoint.h>
36	#include <material.h>	37	#include <material.h>
		38	#include <object.h>
		39
		40	#include <sys/time.h>
		41	#include <sys/resource.h>
37		42
38	#include <glib.h>	43	#include <glib.h>
		44
		45	refcnt_base::refcnt_t refcnt_dummy;
		46	ssize_t slice_alloc;
		47	rand_gen rndm, rmg_rndm;
		48
		49	void
		50	tausworthe_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
		61	uint32_t
		62	tausworthe_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
		72	template<class generator>
		73	uint32_t
		74	random_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)
		80	template<class generator>
		81	int
		82	random_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
		87	template struct random_number_generator<tausworthe_random_generator>;
		88	template struct random_number_generator<xorshift_random_generator>;
39		89
40	/*	90	/*
41	* The random functions here take luck into account when rolling random	91	* The random functions here take luck into account when rolling random
42	* 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
43	* difference becomes in the random numbers. IE, the effect is lessened	93	* difference becomes in the random numbers. IE, the effect is lessened
50	* 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,
51	* 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.
52	* Generally, op should be the player/caster/hitter requesting the roll,	102	* Generally, op should be the player/caster/hitter requesting the roll,
53	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	103	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
54	*/	104	*/
55
56	int	105	int
57	random_roll (int min, int max, const object *op, int goodbad)	106	random_roll (int r_min, int r_max, const object *op, int goodbad)
58	{	107	{
59	int omin, diff, luck, base, ran;	108	r_max = max (r_min, r_max);
60		109
61	omin = min;	110	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
62	diff = max - min + 1;
63	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
64		111
65	if (max < 1 \|\| diff < 1)
66	{
67	LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
68	return (min); /* avoids a float exception */
69	}
70
71	ran = RANDOM ();
72
73	if (op->type != PLAYER)	112	if (op->type == PLAYER)
74	return ((ran % diff) + min);	113	{
75
76	luck = op->stats.luck;	114	int luck = op->stats.luck;
77	if (RANDOM () % base < MIN (10, abs (luck)))	115
		116	if (rndm (base) < min (10, abs (luck)))
		117	{
		118	//TODO: take luck into account
		119	}
78	{	120	}
79	/* we have a winner */
80	((luck > 0) ? (luck = 1) : (luck = -1));
81	diff -= luck;
82	if (diff < 1)
83	return (omin); /check again /
84	((goodbad) ? (min += luck) : (diff));
85		121
86	return (MAX (omin, MIN (max, (ran % diff) + min)));	122	return rndm (r_min, r_max);
87	}
88	return ((ran % diff) + min);
89	}	123	}
90		124
91	/*	125	/*
92	* 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
93	* for exp loss calculations for players changing religions.	127	* for exp loss calculations for players changing religions.
94	*/	128	*/
95
96	sint64	129	sint64
97	random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)	130	random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
98	{	131	{
99	sint64 omin, diff, luck, ran;	132	sint64 omin = r_min;
100	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 */
101		135
102	omin = min;	136	/*
103	diff = max - min + 1;
104	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
105
106	if (max < 1 \|\| diff < 1)
107	{
108	#ifndef WIN32
109	LOG (llevError, "Calling random_roll with min=%lld max=%lld\n", min, max);
110	#else
111	LOG (llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max);
112	#endif
113	return (min); /* avoids a float exception */
114	}
115
116	/* Don't know of a portable call to get 64 bit random values.
117	* 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
118	* a little byteshifting. Do make sure the first one is only	138	* a little bitshifting.
119	* 32 bit, so we don't get skewed results
120	*/	139	*/
121	ran = (RANDOM () & 0xffffffff) \| ((sint64) RANDOM () << 32);	140	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
122		141
123	if (op->type != PLAYER)	142	if (op->type != PLAYER)
124	return ((ran % diff) + min);	143	return ((ran % range) + r_min);
125		144
126	luck = op->stats.luck;	145	int luck = op->stats.luck;
		146
127	if (RANDOM () % base < MIN (10, abs (luck)))	147	if (rndm (base) < min (10, abs (luck)))
128	{	148	{
129	/* we have a winner */	149	/* we have a winner */
130	((luck > 0) ? (luck = 1) : (luck = -1));	150	((luck > 0) ? (luck = 1) : (luck = -1));
131	diff -= luck;	151	range -= luck;
132	if (diff < 1)	152	if (range < 1)
133	return (omin); /check again /	153	return (omin); /check again /
		154
134	((goodbad) ? (min += luck) : (diff));	155	((goodbad) ? (r_min += luck) : (range));
135		156
136	return (MAX (omin, MIN (max, (ran % diff) + min)));	157	return (max (omin, min (r_max, (ran % range) + r_min)));
137	}	158	}
138	return ((ran % diff) + min);	159
		160	return ran % range + r_min;
139	}	161	}
140		162
141	/*	163	/*
142	* 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,
143	* 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.
144	* Generally, op should be the player/caster/hitter requesting the roll,	166	* Generally, op should be the player/caster/hitter requesting the roll,
145	* not the recipient (ie, the poor slob getting hit).	167	* not the recipient (ie, the poor slob getting hit).
146	* The args are num D size (ie 4d6) [garbled 20010916]	168	* The args are num D size (ie 4d6) [garbled 20010916]
147	*/	169	*/
148
149	int	170	int
150	die_roll (int num, int size, const object *op, int goodbad)	171	die_roll (int num, int size, const object *op, int goodbad)
151	{	172	{
152	int min, diff, luck, total, i, gotlucky, base, ran;	173	int min, luck, total, i, gotlucky;
153		174
154	diff = size;	175	int diff = size;
155	min = 1;	176	min = 1;
156	luck = total = gotlucky = 0;	177	luck = total = gotlucky = 0;
157	((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
158	if (size < 2 \|\| diff < 1)	180	if (size < 2 \|\| diff < 1)
159	{	181	{
160	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);
161	return (num); /* avoids a float exception */	183	return num; /* avoids a float exception */
162	}	184	}
163		185
164	if (op->type == PLAYER)	186	if (op->type == PLAYER)
165	luck = op->stats.luck;	187	luck = op->stats.luck;
166		188
167	for (i = 0; i < num; i++)	189	for (i = 0; i < num; i++)
168	{	190	{
169	if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky)	191	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
170	{	192	{
171	/* we have a winner */	193	/* we have a winner */
172	gotlucky++;	194	gotlucky++;
173	((luck > 0) ? (luck = 1) : (luck = -1));	195	((luck > 0) ? (luck = 1) : (luck = -1));
174	diff -= luck;	196	diff -= luck;
175	if (diff < 1)	197	if (diff < 1)
176	return (num); /check again /	198	return (num); /check again /
177	((goodbad) ? (min += luck) : (diff));	199	((goodbad) ? (min += luck) : (diff));
178	ran = RANDOM ();
179	total += MAX (1, MIN (size, (ran % diff) + min));	200	total += MAX (1, MIN (size, rndm (diff) + min));
180	}	201	}
181	else	202	else
182	{
183	total += RANDOM () % size + 1;	203	total += rndm (size) + 1;
184	}
185	}	204	}
		205
186	return (total);	206	return total;
187	}
188
189	/*
190	* Another convenience function. Returns a number between min and max.
191	* It is suggested one use these functions rather than RANDOM()%, as it
192	* would appear that a number of off-by-one-errors exist due to improper
193	* use of %. This should also prevent SIGFPE.
194	*/
195
196	int
197	rndm (int min, int max)
198	{
199	int diff;
200
201	diff = max - min + 1;
202	if (max < 1 \|\| diff < 1)
203	return (min);
204
205	return (RANDOM () % diff + min);
206	}
207
208	/* decay and destroy persihable items in a map */
209
210	void
211	decay_objects (mapstruct *m)
212	{
213	int x, y, destroy;
214	object op, otmp;
215
216	if (m->unique)
217	return;
218
219	for (x = 0; x < MAP_WIDTH (m); x++)
220	for (y = 0; y < MAP_HEIGHT (m); y++)
221	for (op = get_map_ob (m, x, y); op; op = otmp)
222	{
223	destroy = 0;
224	otmp = op->above;
225	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
226	break;
227	if (QUERY_FLAG (op, FLAG_IS_FLOOR) \|\|
228	QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) \|\|
229	QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) \|\|
230	QUERY_FLAG (op, FLAG_UNIQUE) \|\| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) \|\| QUERY_FLAG (op, FLAG_UNPAID) \|\| IS_LIVE (op))
231	continue;
232	/* otherwise, we decay and destroy */
233	if (IS_WEAPON (op))
234	{
235	op->stats.dam--;
236	if (op->stats.dam < 0)
237	destroy = 1;
238	}
239	else if (IS_ARMOR (op))
240	{
241	op->stats.ac--;
242	if (op->stats.ac < 0)
243	destroy = 1;
244	}
245	else if (op->type == FOOD)
246	{
247	op->stats.food -= rndm (5, 20);
248	if (op->stats.food < 0)
249	destroy = 1;
250	}
251	else
252	{
253	if (op->material & M_PAPER \|\| op->material & M_LEATHER \|\|
254	op->material & M_WOOD \|\| op->material & M_ORGANIC \|\| op->material & M_CLOTH \|\| op->material & M_LIQUID)
255	destroy = 1;
256	if (op->material & M_IRON && rndm (1, 5) == 1)
257	destroy = 1;
258	if (op->material & M_GLASS && rndm (1, 2) == 1)
259	destroy = 1;
260	if ((op->material & M_STONE \|\| op->material & M_ADAMANT) && rndm (1, 10) == 1)
261	destroy = 1;
262	if ((op->material & M_SOFT_METAL \|\| op->material & M_BONE) && rndm (1, 3) == 1)
263	destroy = 1;
264	if (op->material & M_ICE && MAP_TEMP (m) > 32)
265	destroy = 1;
266	}
267	/* adjust overall chance below */
268	if (destroy && rndm (0, 1))
269	{
270	remove_ob (op);
271	free_object (op);
272	}
273	}
274	}	207	}
275		208
276	/* convert materialname to materialtype_t */	209	/* convert materialname to materialtype_t */
277		210
278	materialtype_t *	211	materialtype_t *
279	name_to_material (const char *name)	212	name_to_material (const shstr_cmp name)
280	{	213	{
281	materialtype_t mt, nmt;	214	for (materialtype_t *mt = materialt; mt; mt = mt->next)
		215	if (name == mt->name)
		216	return mt;
282		217
283	mt = NULL;
284	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
285	{
286	if (strcmp (name, nmt->name) == 0)
287	{
288	mt = nmt;
289	break;
290	}
291	}
292	return mt;	218	return 0;
293	}	219	}
294		220
295	/* when doing transmutation of objects, we have to recheck the resistances,	221	/* when doing transmutation of objects, we have to recheck the resistances,
296	* as some that did not apply previously, may apply now.	222	* as some that did not apply previously, may apply now.
297	*/	223	*/
298
299	void	224	void
300	transmute_materialname (object op, const object change)	225	transmute_materialname (object op, const object change)
301	{	226	{
302	materialtype_t *mt;	227	materialtype_t *mt;
303	int j;	228	int j;
304		229
305	if (op->materialname == NULL)	230	if (!op->materialname)
306	return;	231	return;
307		232
308	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))	233	if (op->materialname != change->materialname)
309	return;	234	return;
310		235
311	if (!IS_ARMOR (op))	236	if (!op->is_armor ())
312	return;	237	return;
313		238
314	mt = name_to_material (op->materialname);	239	mt = name_to_material (op->materialname);
315	if (!mt)	240	if (!mt)
316	{	241	{
317	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);
318	return;	243	return;
319	}	244	}
320		245
321	for (j = 0; j < NROFATTACKS; j++)	246	for (j = 0; j < NROFATTACKS; j++)
322	if (op->resist[j] == 0 && change->resist[j] != 0)	247	if (op->resist[j] == 0 && change->resist[j] != 0)
…		…
333	void	258	void
334	set_materialname (object op, int difficulty, materialtype_t nmt)	259	set_materialname (object op, int difficulty, materialtype_t nmt)
335	{	260	{
336	materialtype_t mt, lmt;	261	materialtype_t mt, lmt;
337		262
338	#ifdef NEW_MATERIAL_CODE
339	int j;
340	#endif
341
342	if (op->materialname != NULL)	263	if (!op->materialname)
343	return;	264	return;
344		265
345		266	if (nmt)
346		267	lmt = nmt;
347	if (nmt == NULL)	268	else
348	{	269	{
349	lmt = NULL;	270	lmt = 0;
350	#ifndef NEW_MATERIAL_CODE	271
351	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)	272	for (mt = materialt; mt; mt = mt->next)
352	{	273	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
353	if (op->material & mt->material)	274	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
354	{	275	{
355	lmt = mt;	276	lmt = mt;
		277	if (!(op->is_weapon () \|\| op->is_armor ()))
356	break;	278	break;
357	}	279	}
358	}
359
360	#else
361	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
362	{
363	if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
364	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
365	{
366	lmt = mt;
367	if (!(IS_WEAPON (op) \|\| IS_ARMOR (op)))
368	break;
369	}
370	}
371	#endif
372	}
373	else
374	{	280	}
375	lmt = nmt;	281
		282	if (lmt)
376	}	283	{
377		284	if (op->stats.dam && op->is_weapon ())
378	if (lmt != NULL)
379	{
380	#ifndef NEW_MATERIAL_CODE
381	op->materialname = lmt->name;
382	return;
383	#else
384
385	if (op->stats.dam && IS_WEAPON (op))
386	{	285	{
387	op->stats.dam += lmt->damage;	286	op->stats.dam += lmt->damage;
388	if (op->stats.dam < 1)	287	if (op->stats.dam < 1)
389	op->stats.dam = 1;	288	op->stats.dam = 1;
390	}	289	}
		290
391	if (op->stats.sp && op->type == BOW)	291	if (op->stats.sp && op->type == BOW)
392	op->stats.sp += lmt->sp;	292	op->stats.sp += lmt->sp;
393	if (op->stats.wc && IS_WEAPON (op))	293	if (op->stats.wc && op->is_weapon ())
394	op->stats.wc += lmt->wc;	294	op->stats.wc += lmt->wc;
395	if (IS_ARMOR (op))	295	if (op->is_armor ())
396	{	296	{
397	if (op->stats.ac)	297	if (op->stats.ac)
398	op->stats.ac += lmt->ac;	298	op->stats.ac += lmt->ac;
		299
399	for (j = 0; j < NROFATTACKS; j++)	300	for (int j = 0; j < NROFATTACKS; j++)
400	if (op->resist[j] != 0)	301	if (op->resist[j] != 0)
401	{	302	{
402	op->resist[j] += lmt->mod[j];	303	op->resist[j] += lmt->mod[j];
403	if (op->resist[j] > 100)	304	if (op->resist[j] > 100)
404	op->resist[j] = 100;	305	op->resist[j] = 100;
405	if (op->resist[j] < -100)	306	if (op->resist[j] < -100)
406	op->resist[j] = -100;	307	op->resist[j] = -100;
407	}	308	}
408	}	309	}
		310
409	op->materialname = add_string (lmt->name);	311	op->materialname = lmt->name;
410	/* dont make it unstackable if it doesn't need to be */	312	/* dont make it unstackable if it doesn't need to be */
411	if (IS_WEAPON (op) \|\| IS_ARMOR (op))	313	if (op->is_weapon () \|\| op->is_armor ())
412	{	314	{
413	op->weight = (op->weight * lmt->weight) / 100;	315	op->weight = (op->weight * lmt->weight) / 100;
414	op->value = (op->value * lmt->value) / 100;	316	op->value = (op->value * lmt->value) / 100;
415	}	317	}
416	#endif
417	}	318	}
418	}	319	}
419		320
420	/*	321	/*
421	* Strip out the media tags from a String.	322	* Strip out the media tags from a String.
…		…
516	* a 'list' for the purposes here, is a string of items, seperated by commas, except	417	* a 'list' for the purposes here, is a string of items, seperated by commas, except
517	* for the last entry, which has an 'and' before it, and a full stop (period) after it.	418	* for the last entry, which has an 'and' before it, and a full stop (period) after it.
518	* This function will also strip all trailing non alphanumeric characters.	419	* This function will also strip all trailing non alphanumeric characters.
519	* It does not insert an oxford comma.	420	* It does not insert an oxford comma.
520	*/	421	*/
521
522	void	422	void
523	make_list_like (char *input)	423	make_list_like (char *input)
524	{	424	{
525	char *p, tmp[MAX_BUF];	425	char *p, tmp[MAX_BUF];
526	int i;	426	int i;
…		…
531		431
532	strncpy (tmp, input, MAX_BUF - 5);	432	strncpy (tmp, input, MAX_BUF - 5);
533	/trim all trailing commas, spaces etc. /	433	/trim all trailing commas, spaces etc. /
534	for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)	434	for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)
535	tmp[i] = '\0';	435	tmp[i] = '\0';
		436
536	strcat (tmp, ".");	437	strcat (tmp, ".");
537		438
538	p = strrchr (tmp, ',');	439	p = strrchr (tmp, ',');
539	if (p)	440	if (p)
540	{	441	{
…		…
544	strcat (input, " and");	445	strcat (input, " and");
545	strcat (input, p);	446	strcat (input, p);
546	}	447	}
547	else	448	else
548	strcpy (input, tmp);	449	strcpy (input, tmp);
		450
549	return;	451	return;
550	}	452	}
551		453
552	void *	454	/******************************************************************************/
553	zero_initialised::operator
554	new (size_t s)
555	{
556	//return calloc (1, s);
557	return g_slice_alloc0 (s);
558	}
559		455
560	void *	456	/* Checks a player-provided string which will become the msg property of
561	zero_initialised::operator	457	* an object for dangerous input.
562	new[] (size_t s)	458	*/
		459	bool
		460	msg_is_safe (const char *msg)
563	{	461	{
564	//return calloc (1, s);	462	bool safe = true;
565	return g_slice_alloc0 (s);	463
		464	/* Trying to cheat by getting data into the object */
		465	if (!strncmp (msg, "endmsg", sizeof ("endmsg") - 1)
		466	\|\| strstr (msg, "\nendmsg"))
		467	safe = false;
		468
		469	/* Trying to make the object talk, and potentially access arbitrary code */
		470	if (object::msg_has_dialogue (msg))
		471	safe = false;
		472
		473	return safe;
566	}	474	}
		475
		476	/////////////////////////////////////////////////////////////////////////////
567		477
568	void	478	void
569	zero_initialised::operator	479	fork_abort (const char *msg)
570	delete (void *p, size_t s)
571	{	480	{
572	//free (p); return;	481	if (!fork ())
573	g_slice_free1 (s, p);	482	{
574	}	483	signal (SIGINT , SIG_IGN);
		484	signal (SIGTERM, SIG_IGN);
		485	signal (SIGABRT, SIG_IGN);
575		486
576	void	487	signal (SIGSEGV, SIG_DFL);
577	zero_initialised::operator	488	signal (SIGBUS , SIG_DFL);
578	delete[] (void *p, size_t s)	489	signal (SIGILL , SIG_DFL);
579	{	490	signal (SIGTRAP, SIG_DFL);
580	//free (p); return;	491
581	g_slice_free1 (s, p);	492	// try to put corefiles into a subdirectory, if existing, to allow
		493	// an administrator to reduce the I/O load.
		494	chdir ("cores");
		495
		496	// try to detach us from as many external dependencies as possible
		497	// as coredumping can take time by closing all fd's.
		498	{
		499	struct rlimit lim;
		500
		501	if (getrlimit (RLIMIT_NOFILE, &lim))
		502	lim.rlim_cur = 1024;
		503
		504	for (int i = 0; i < lim.rlim_cur; ++i)
		505	close (i);
		506	}
		507
		508	{
		509	sigset_t empty;
		510	sigemptyset (&empty);
		511	sigprocmask (SIG_SETMASK, &empty, 0);
		512	}
		513
		514	// try to coredump with SIGTRAP
		515	kill (getpid (), SIGTRAP);
		516	abort ();
		517	}
		518
		519	LOG (llevError, "fork abort: %s\n", msg);
582	}	520	}
		521
		522	void *salloc_ (int n) throw (std::bad_alloc)
		523	{
		524	void *ptr = g_slice_alloc (n);
		525
		526	if (!ptr)
		527	throw std::bad_alloc ();
		528
		529	slice_alloc += n;
		530	return ptr;
		531	}
		532
		533	void salloc_ (int n, void src) throw (std::bad_alloc)
		534	{
		535	void *ptr = salloc_ (n);
		536
		537	if (src)
		538	memcpy (ptr, src, n);
		539	else
		540	memset (ptr, 0, n);
		541
		542	return ptr;
		543	}
		544
		545	/******************************************************************************/
		546
		547	#if DEBUG_SALLOC
		548
		549	#define MAGIC 0xa1b2c35543deadLL
		550
		551	void *g_slice_alloc (unsigned long size)
		552	{
		553	unsigned long p = (unsigned long ) (g_slice_alloc)(size + sizeof (unsigned long));
		554	*p++ = size ^ MAGIC;
		555	//fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
		556	return (void *)p;
		557	}
		558
		559	void *g_slice_alloc0 (unsigned long size)
		560	{
		561	return memset (g_slice_alloc (size), 0, size);
		562	}
		563
		564	void g_slice_free1 (unsigned long size, void *ptr)
		565	{
		566	//fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
		567	if (expect_true (ptr))
		568	{
		569	unsigned long p = (unsigned long )ptr;
		570	unsigned long s = *--p ^ MAGIC;
		571
		572	if (size != (unsigned long)(*p ^ MAGIC))
		573	{
		574	LOG (logBacktrace \| llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
		575	abort ();
		576	}
		577
		578	*p = MAGIC;
		579
		580	(g_slice_free1)(s + sizeof (unsigned long), p);
		581	}
		582	}
		583
		584	#endif
		585
		586	/******************************************************************************/
		587
		588	int
		589	assign (char dst, const char src, int maxsize)
		590	{
		591	if (!src)
		592	src = "";
		593
		594	int len = strlen (src);
		595
		596	if (len >= maxsize)
		597	{
		598	if (maxsize <= 4)
		599	{
		600	memset (dst, '.', maxsize - 2);
		601	dst [maxsize - 1] = 0;
		602	}
		603	else
		604	{
		605	memcpy (dst, src, maxsize - 4);
		606	memcpy (dst + maxsize - 4, "...", 4);
		607	}
		608
		609	len = maxsize;
		610	}
		611	else
		612	memcpy (dst, src, ++len);
		613
		614	return len;
		615	}
		616
		617	const char *
		618	format (const char *format, ...)
		619	{
		620	static dynbuf_text buf;
		621
		622	buf.clear ();
		623
		624	va_list ap;
		625	va_start (ap, format);
		626	buf.vprintf (format, ap);
		627	va_end (ap);
		628
		629	return buf;
		630	}
		631
		632	tstamp now ()
		633	{
		634	struct timeval tv;
		635
		636	gettimeofday (&tv, 0);
		637	return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
		638	}
		639
		640	int
		641	similar_direction (int a, int b)
		642	{
		643	if (!a \|\| !b)
		644	return 0;
		645
		646	int diff = (b - a) & 7;
		647	return diff <= 1 \|\| diff >= 7;
		648	}
		649
		650	/* crc32 0xdebb20e3 table and supplementary functions. */
		651	extern const uint32_t crc_32_tab[256] =
		652	{
		653	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		654	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		655	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		656	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		657	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		658	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		659	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		660	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		661	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		662	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		663	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		664	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		665	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		666	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		667	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		668	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		669	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		670	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		671	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		672	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		673	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		674	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		675	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		676	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		677	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		678	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		679	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		680	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		681	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		682	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		683	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		684	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		685	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		686	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		687	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		688	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		689	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		690	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		691	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		692	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		693	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		694	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		695	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		696	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		697	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		698	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		699	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		700	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		701	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		702	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		703	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		704	0x2d02ef8dL
		705	};
		706
		707	void thread::start (void (start_routine)(void ), void arg)
		708	{
		709	pthread_attr_t attr;
		710
		711	pthread_attr_init (&attr);
		712	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
		713	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
		714	? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
		715	#ifdef PTHREAD_SCOPE_PROCESS
		716	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
		717	#endif
		718
		719	sigset_t fullsigset, oldsigset;
		720	sigfillset (&fullsigset);
		721
		722	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
		723
		724	if (pthread_create (&id, &attr, start_routine, arg))
		725	cleanup ("unable to create a new thread");
		726
		727	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
		728	}
		729

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.9 by root, Sun Sep 10 16:00:23 2006 UTC vs. Revision 1.89 by root, Mon Oct 12 14:00:57 2009 UTC

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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.9 by root, Sun Sep 10 16:00:23 2006 UTC vs.
Revision 1.89 by root, Mon Oct 12 14:00:57 2009 UTC