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

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.37 by root, Mon Jan 15 02:39:40 2007 UTC vs.
Revision 1.89 by root, Mon Oct 12 14:00:57 2009 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
4	Copyright (C) 2005, 2006, 2007 Marc Lehmann & Crossfire+ Development Team	4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
6	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
7		7	*
8	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify it under
9	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
10	the Free Software Foundation; either version 2 of the License, or	10	* Free Software Foundation, either version 3 of the License, or (at your
11	(at your option) any later version.	11	* option) any later version.
12		12	*
13	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
14	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16	GNU General Public License for more details.	16	* GNU General Public License for more details.
17		17	*
18	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the Affero GNU General Public License
19	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
20	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	* <http://www.gnu.org/licenses/>.
21		21	*
22	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>
23	*/	23	*/
24		24
25	/*	25	/*
26	* General convenience functions for crossfire.	26	* General convenience functions for crossfire.
27	*/	27	*/
28		28
32	#include <sys/time.h>	32	#include <sys/time.h>
33	#include <time.h>	33	#include <time.h>
34	#include <signal.h>	34	#include <signal.h>
35		35
36	#include <global.h>	36	#include <global.h>
37	#include <funcpoint.h>
38	#include <material.h>	37	#include <material.h>
		38	#include <object.h>
		39
		40	#include <sys/time.h>
		41	#include <sys/resource.h>
39		42
40	#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>;
41		89
42	/*	90	/*
43	* The random functions here take luck into account when rolling random	91	* The random functions here take luck into account when rolling random
44	* dice or numbers. This function has less of an impact the larger the	92	* dice or numbers. This function has less of an impact the larger the
45	* difference becomes in the random numbers. IE, the effect is lessened	93	* difference becomes in the random numbers. IE, the effect is lessened
…		…
52	* Roll a random number between min and max. Uses op to determine luck,	100	* Roll a random number between min and max. Uses op to determine luck,
53	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.	101	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
54	* Generally, op should be the player/caster/hitter requesting the roll,	102	* Generally, op should be the player/caster/hitter requesting the roll,
55	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	103	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
56	*/	104	*/
57
58	int	105	int
59	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)
60	{	107	{
61	int omin, diff, luck, base, ran;	108	r_max = max (r_min, r_max);
62		109
63	omin = min;	110	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
64	diff = max - min + 1;
65	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
66		111
67	if (max < 1 \|\| diff < 1)
68	{
69	LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
70	return (min); /* avoids a float exception */
71	}
72
73	ran = RANDOM ();
74
75	if (op->type != PLAYER)	112	if (op->type == PLAYER)
76	return ((ran % diff) + min);	113	{
77
78	luck = op->stats.luck;	114	int luck = op->stats.luck;
79	if (RANDOM () % base < MIN (10, abs (luck)))	115
		116	if (rndm (base) < min (10, abs (luck)))
		117	{
		118	//TODO: take luck into account
		119	}
80	{	120	}
81	/* we have a winner */
82	((luck > 0) ? (luck = 1) : (luck = -1));
83	diff -= luck;
84	if (diff < 1)
85	return (omin); /check again /
86	((goodbad) ? (min += luck) : (diff));
87		121
88	return (MAX (omin, MIN (max, (ran % diff) + min)));	122	return rndm (r_min, r_max);
89	}
90	return ((ran % diff) + min);
91	}	123	}
92		124
93	/*	125	/*
94	* 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
95	* for exp loss calculations for players changing religions.	127	* for exp loss calculations for players changing religions.
96	*/	128	*/
97
98	sint64	129	sint64
99	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)
100	{	131	{
101	sint64 omin, diff, luck, ran;	132	sint64 omin = r_min;
102	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 */
103		135
104	omin = min;	136	/*
105	diff = max - min + 1;
106	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
107
108	if (max < 1 \|\| diff < 1)
109	{
110	LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
111	return (min); /* avoids a float exception */
112	}
113
114	/* Don't know of a portable call to get 64 bit random values.
115	* So make a call to get two 32 bit random numbers, and just to	137	* Make a call to get two 32 bit unsigned random numbers, and just to
116	* a little byteshifting. Do make sure the first one is only	138	* a little bitshifting.
117	* 32 bit, so we don't get skewed results
118	*/	139	*/
119	ran = (RANDOM () & 0xffffffff) \| ((sint64) RANDOM () << 32);	140	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
120		141
121	if (op->type != PLAYER)	142	if (op->type != PLAYER)
122	return ((ran % diff) + min);	143	return ((ran % range) + r_min);
123		144
124	luck = op->stats.luck;	145	int luck = op->stats.luck;
		146
125	if (RANDOM () % base < MIN (10, abs (luck)))	147	if (rndm (base) < min (10, abs (luck)))
126	{	148	{
127	/* we have a winner */	149	/* we have a winner */
128	((luck > 0) ? (luck = 1) : (luck = -1));	150	((luck > 0) ? (luck = 1) : (luck = -1));
129	diff -= luck;	151	range -= luck;
130	if (diff < 1)	152	if (range < 1)
131	return (omin); /check again /	153	return (omin); /check again /
		154
132	((goodbad) ? (min += luck) : (diff));	155	((goodbad) ? (r_min += luck) : (range));
133		156
134	return (MAX (omin, MIN (max, (ran % diff) + min)));	157	return (max (omin, min (r_max, (ran % range) + r_min)));
135	}	158	}
136	return ((ran % diff) + min);	159
		160	return ran % range + r_min;
137	}	161	}
138		162
139	/*	163	/*
140	* 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,
141	* 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.
142	* Generally, op should be the player/caster/hitter requesting the roll,	166	* Generally, op should be the player/caster/hitter requesting the roll,
143	* not the recipient (ie, the poor slob getting hit).	167	* not the recipient (ie, the poor slob getting hit).
144	* The args are num D size (ie 4d6) [garbled 20010916]	168	* The args are num D size (ie 4d6) [garbled 20010916]
145	*/	169	*/
146
147	int	170	int
148	die_roll (int num, int size, const object *op, int goodbad)	171	die_roll (int num, int size, const object *op, int goodbad)
149	{	172	{
150	int min, diff, luck, total, i, gotlucky, base, ran;	173	int min, luck, total, i, gotlucky;
151		174
152	diff = size;	175	int diff = size;
153	min = 1;	176	min = 1;
154	luck = total = gotlucky = 0;	177	luck = total = gotlucky = 0;
155	((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
156	if (size < 2 \|\| diff < 1)	180	if (size < 2 \|\| diff < 1)
157	{	181	{
158	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);
159	return (num); /* avoids a float exception */	183	return num; /* avoids a float exception */
160	}	184	}
161		185
162	if (op->type == PLAYER)	186	if (op->type == PLAYER)
163	luck = op->stats.luck;	187	luck = op->stats.luck;
164		188
165	for (i = 0; i < num; i++)	189	for (i = 0; i < num; i++)
166	{	190	{
167	if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky)	191	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
168	{	192	{
169	/* we have a winner */	193	/* we have a winner */
170	gotlucky++;	194	gotlucky++;
171	((luck > 0) ? (luck = 1) : (luck = -1));	195	((luck > 0) ? (luck = 1) : (luck = -1));
172	diff -= luck;	196	diff -= luck;
173	if (diff < 1)	197	if (diff < 1)
174	return (num); /check again /	198	return (num); /check again /
175	((goodbad) ? (min += luck) : (diff));	199	((goodbad) ? (min += luck) : (diff));
176	ran = RANDOM ();
177	total += MAX (1, MIN (size, (ran % diff) + min));	200	total += MAX (1, MIN (size, rndm (diff) + min));
178	}	201	}
179	else	202	else
180	{
181	total += RANDOM () % size + 1;	203	total += rndm (size) + 1;
182	}
183	}	204	}
		205
184	return (total);	206	return total;
185	}
186
187	/*
188	* Another convenience function. Returns a number between min and max.
189	* It is suggested one use these functions rather than RANDOM()%, as it
190	* would appear that a number of off-by-one-errors exist due to improper
191	* use of %. This should also prevent SIGFPE.
192	*/
193
194	int
195	rndm (int min, int max)
196	{
197	int diff;
198
199	diff = max - min + 1;
200	if (max < 1 \|\| diff < 1)
201	return (min);
202
203	return (RANDOM () % diff + min);
204	}
205
206	/* decay and destroy perishable items in a map */
207	void
208	maptile::decay_objects ()
209	{
210	if (!spaces)
211	return;
212
213	for (mapspace *ms = spaces + size (); ms-- > spaces; )
214	for (object above, op = ms->bot; op; op = above)
215	{
216	above = op->above;
217
218	bool destroy = 0;
219
220	// do not decay anything above unique floor tiles (yet :)
221	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
222	break;
223
224	if (QUERY_FLAG (op, FLAG_IS_FLOOR)
225	\|\| QUERY_FLAG (op, FLAG_OBJ_ORIGINAL)
226	\|\| QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL)
227	\|\| QUERY_FLAG (op, FLAG_UNIQUE)
228	\|\| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
229	\|\| QUERY_FLAG (op, FLAG_UNPAID)
230	\|\| op->is_alive ())
231	; // do not decay
232	else if (op->is_weapon ())
233	{
234	op->stats.dam--;
235	if (op->stats.dam < 0)
236	destroy = 1;
237	}
238	else if (op->is_armor ())
239	{
240	op->stats.ac--;
241	if (op->stats.ac < 0)
242	destroy = 1;
243	}
244	else if (op->type == FOOD)
245	{
246	op->stats.food -= rndm (5, 20);
247	if (op->stats.food < 0)
248	destroy = 1;
249	}
250	else
251	{
252	int mat = op->material;
253
254	if (mat & M_PAPER
255	\|\| mat & M_LEATHER
256	\|\| mat & M_WOOD
257	\|\| mat & M_ORGANIC
258	\|\| mat & M_CLOTH
259	\|\| mat & M_LIQUID
260	\|\| (mat & M_IRON && rndm (1, 5) == 1)
261	\|\| (mat & M_GLASS && rndm (1, 2) == 1)
262	\|\| ((mat & M_STONE \|\| mat & M_ADAMANT) && rndm (1, 10) == 1)
263	\|\| ((mat & M_SOFT_METAL \|\| mat & M_BONE) && rndm (1, 3) == 1)
264	\|\| (mat & M_ICE && temp > 32))
265	destroy = 1;
266	}
267
268	/* adjust overall chance below */
269	if (destroy && rndm (0, 1))
270	op->destroy ();
271	}
272	}	207	}
273		208
274	/* convert materialname to materialtype_t */	209	/* convert materialname to materialtype_t */
275		210
276	materialtype_t *	211	materialtype_t *
277	name_to_material (const char *name)	212	name_to_material (const shstr_cmp name)
278	{	213	{
279	materialtype_t mt, nmt;	214	for (materialtype_t *mt = materialt; mt; mt = mt->next)
		215	if (name == mt->name)
		216	return mt;
280		217
281	mt = NULL;
282	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
283	{
284	if (strcmp (name, nmt->name) == 0)
285	{
286	mt = nmt;
287	break;
288	}
289	}
290	return mt;	218	return 0;
291	}	219	}
292		220
293	/* when doing transmutation of objects, we have to recheck the resistances,	221	/* when doing transmutation of objects, we have to recheck the resistances,
294	* as some that did not apply previously, may apply now.	222	* as some that did not apply previously, may apply now.
295	*/	223	*/
296
297	void	224	void
298	transmute_materialname (object op, const object change)	225	transmute_materialname (object op, const object change)
299	{	226	{
300	materialtype_t *mt;	227	materialtype_t *mt;
301	int j;	228	int j;
302		229
303	if (op->materialname == NULL)	230	if (!op->materialname)
304	return;	231	return;
305		232
306	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))	233	if (op->materialname != change->materialname)
307	return;	234	return;
308		235
309	if (!op->is_armor ())	236	if (!op->is_armor ())
310	return;	237	return;
311		238
312	mt = name_to_material (op->materialname);	239	mt = name_to_material (op->materialname);
313	if (!mt)	240	if (!mt)
314	{	241	{
315	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);
316	return;	243	return;
317	}	244	}
318		245
319	for (j = 0; j < NROFATTACKS; j++)	246	for (j = 0; j < NROFATTACKS; j++)
320	if (op->resist[j] == 0 && change->resist[j] != 0)	247	if (op->resist[j] == 0 && change->resist[j] != 0)
…		…
331	void	258	void
332	set_materialname (object op, int difficulty, materialtype_t nmt)	259	set_materialname (object op, int difficulty, materialtype_t nmt)
333	{	260	{
334	materialtype_t mt, lmt;	261	materialtype_t mt, lmt;
335		262
336	#ifdef NEW_MATERIAL_CODE
337	int j;
338	#endif
339
340	if (op->materialname != NULL)	263	if (!op->materialname)
341	return;	264	return;
342		265
343		266	if (nmt)
344		267	lmt = nmt;
345	if (nmt == NULL)	268	else
346	{	269	{
347	lmt = NULL;	270	lmt = 0;
348	#ifndef NEW_MATERIAL_CODE	271
349	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)	272	for (mt = materialt; mt; mt = mt->next)
350	{	273	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
351	if (op->material & mt->material)	274	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
352	{	275	{
353	lmt = mt;	276	lmt = mt;
		277	if (!(op->is_weapon () \|\| op->is_armor ()))
354	break;	278	break;
355	}	279	}
356	}
357
358	#else
359	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
360	{
361	if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
362	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
363	{
364	lmt = mt;
365	if (!(op->is_weapon () \|\| op->is_armor ()))
366	break;
367	}
368	}
369	#endif
370	}
371	else
372	{	280	}
373	lmt = nmt;	281
		282	if (lmt)
374	}	283	{
375
376	if (lmt != NULL)
377	{
378	#ifndef NEW_MATERIAL_CODE
379	op->materialname = lmt->name;
380	return;
381	#else
382
383	if (op->stats.dam && op->is_weapon ())	284	if (op->stats.dam && op->is_weapon ())
384	{	285	{
385	op->stats.dam += lmt->damage;	286	op->stats.dam += lmt->damage;
386	if (op->stats.dam < 1)	287	if (op->stats.dam < 1)
387	op->stats.dam = 1;	288	op->stats.dam = 1;
388	}	289	}
		290
389	if (op->stats.sp && op->type == BOW)	291	if (op->stats.sp && op->type == BOW)
390	op->stats.sp += lmt->sp;	292	op->stats.sp += lmt->sp;
391	if (op->stats.wc && op->is_weapon ())	293	if (op->stats.wc && op->is_weapon ())
392	op->stats.wc += lmt->wc;	294	op->stats.wc += lmt->wc;
393	if (op->is_armor ())	295	if (op->is_armor ())
394	{	296	{
395	if (op->stats.ac)	297	if (op->stats.ac)
396	op->stats.ac += lmt->ac;	298	op->stats.ac += lmt->ac;
		299
397	for (j = 0; j < NROFATTACKS; j++)	300	for (int j = 0; j < NROFATTACKS; j++)
398	if (op->resist[j] != 0)	301	if (op->resist[j] != 0)
399	{	302	{
400	op->resist[j] += lmt->mod[j];	303	op->resist[j] += lmt->mod[j];
401	if (op->resist[j] > 100)	304	if (op->resist[j] > 100)
402	op->resist[j] = 100;	305	op->resist[j] = 100;
403	if (op->resist[j] < -100)	306	if (op->resist[j] < -100)
404	op->resist[j] = -100;	307	op->resist[j] = -100;
405	}	308	}
406	}	309	}
		310
407	op->materialname = add_string (lmt->name);	311	op->materialname = lmt->name;
408	/* dont make it unstackable if it doesn't need to be */	312	/* dont make it unstackable if it doesn't need to be */
409	if (op->is_weapon () \|\| op->is_armor ())	313	if (op->is_weapon () \|\| op->is_armor ())
410	{	314	{
411	op->weight = (op->weight * lmt->weight) / 100;	315	op->weight = (op->weight * lmt->weight) / 100;
412	op->value = (op->value * lmt->value) / 100;	316	op->value = (op->value * lmt->value) / 100;
413	}	317	}
414	#endif
415	}	318	}
416	}	319	}
417		320
418	/*	321	/*
419	* Strip out the media tags from a String.	322	* Strip out the media tags from a String.
…		…
514	* 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
515	* 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.
516	* This function will also strip all trailing non alphanumeric characters.	419	* This function will also strip all trailing non alphanumeric characters.
517	* It does not insert an oxford comma.	420	* It does not insert an oxford comma.
518	*/	421	*/
519
520	void	422	void
521	make_list_like (char *input)	423	make_list_like (char *input)
522	{	424	{
523	char *p, tmp[MAX_BUF];	425	char *p, tmp[MAX_BUF];
524	int i;	426	int i;
…		…
547	strcpy (input, tmp);	449	strcpy (input, tmp);
548		450
549	return;	451	return;
550	}	452	}
551		453
		454	/******************************************************************************/
		455
		456	/* Checks a player-provided string which will become the msg property of
		457	* an object for dangerous input.
		458	*/
		459	bool
		460	msg_is_safe (const char *msg)
		461	{
		462	bool safe = true;
		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;
		474	}
		475
552	/////////////////////////////////////////////////////////////////////////////	476	/////////////////////////////////////////////////////////////////////////////
553		477
554	void	478	void
555	fork_abort (const char *msg)	479	fork_abort (const char *msg)
556	{	480	{
		481	if (!fork ())
		482	{
		483	signal (SIGINT , SIG_IGN);
		484	signal (SIGTERM, SIG_IGN);
		485	signal (SIGABRT, SIG_IGN);
		486
		487	signal (SIGSEGV, SIG_DFL);
		488	signal (SIGBUS , SIG_DFL);
		489	signal (SIGILL , SIG_DFL);
		490	signal (SIGTRAP, SIG_DFL);
		491
		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
557	LOG (llevError, "fork abort: %s\n", msg);	519	LOG (llevError, "fork abort: %s\n", msg);
558	if (!fork ())
559	{
560	signal (SIGABRT, SIG_DFL);
561	abort ();
562	}
563
564	}	520	}
		521
565	void *salloc_ (int n) throw (std::bad_alloc)	522	void *salloc_ (int n) throw (std::bad_alloc)
566	{	523	{
567	void *ptr = g_slice_alloc (n);	524	void *ptr = g_slice_alloc (n);
568		525
569	if (!ptr)	526	if (!ptr)
570	throw std::bad_alloc ();	527	throw std::bad_alloc ();
571		528
		529	slice_alloc += n;
572	return ptr;	530	return ptr;
573	}	531	}
574		532
575	void salloc_ (int n, void src) throw (std::bad_alloc)	533	void salloc_ (int n, void src) throw (std::bad_alloc)
576	{	534	{
…		…
582	memset (ptr, 0, n);	540	memset (ptr, 0, n);
583		541
584	return ptr;	542	return ptr;
585	}	543	}
586		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
587	void assign (char dst, const char src, int maxlen)	589	assign (char dst, const char src, int maxsize)
588	{	590	{
589	if (!src)	591	if (!src)
590	src = "";	592	src = "";
591		593
592	int len = strlen (src);	594	int len = strlen (src);
593		595
594	if (len >= maxlen - 1)	596	if (len >= maxsize)
595	{	597	{
596	if (maxlen <= 4)	598	if (maxsize <= 4)
597	{	599	{
598	memset (dst, '.', maxlen - 1);	600	memset (dst, '.', maxsize - 2);
599	dst [maxlen - 1] = 0;	601	dst [maxsize - 1] = 0;
600	}	602	}
601	else	603	else
602	{	604	{
603	memcpy (dst, src, maxlen - 4);	605	memcpy (dst, src, maxsize - 4);
604	memcpy (dst + maxlen - 4, "...", 4);	606	memcpy (dst + maxsize - 4, "...", 4);
605	}	607	}
		608
		609	len = maxsize;
606	}	610	}
607	else	611	else
608	memcpy (dst, src, len + 1);	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;
609	}	630	}
610		631
611	tstamp now ()	632	tstamp now ()
612	{	633	{
613	struct timeval tv;	634	struct timeval tv;
…		…
624		645
625	int diff = (b - a) & 7;	646	int diff = (b - a) & 7;
626	return diff <= 1 \|\| diff >= 7;	647	return diff <= 1 \|\| diff >= 7;
627	}	648	}
628		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 1.37 by root, Mon Jan 15 02:39:40 2007 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 1.37 by root, Mon Jan 15 02:39:40 2007 UTC vs.
Revision 1.89 by root, Mon Oct 12 14:00:57 2009 UTC