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

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.36 by pippijn, Sat Jan 6 14:42:29 2007 UTC vs.
Revision 1.90 by root, Thu Oct 15 21:09:32 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
29	#include <global.h>	29	#include <cstdlib>
		30	#include <sys/types.h>
30	#include <funcpoint.h>	31	#include <unistd.h>
31	#include <material.h>
32
33	#include <sys/time.h>	32	#include <sys/time.h>
34	#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
35	#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>;
36		89
37	/*	90	/*
38	* The random functions here take luck into account when rolling random	91	* The random functions here take luck into account when rolling random
39	* 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
40	* difference becomes in the random numbers. IE, the effect is lessened	93	* difference becomes in the random numbers. IE, the effect is lessened
47	* 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,
48	* 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.
49	* Generally, op should be the player/caster/hitter requesting the roll,	102	* Generally, op should be the player/caster/hitter requesting the roll,
50	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	103	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
51	*/	104	*/
52
53	int	105	int
54	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)
55	{	107	{
56	int omin, diff, luck, base, ran;	108	r_max = max (r_min, r_max);
57		109
58	omin = min;	110	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
59	diff = max - min + 1;
60	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
61		111
62	if (max < 1 \|\| diff < 1)
63	{
64	LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
65	return (min); /* avoids a float exception */
66	}
67
68	ran = RANDOM ();
69
70	if (op->type != PLAYER)	112	if (op->type == PLAYER)
71	return ((ran % diff) + min);	113	{
72
73	luck = op->stats.luck;	114	int luck = op->stats.luck;
74	if (RANDOM () % base < MIN (10, abs (luck)))	115
		116	if (rndm (base) < min (10, abs (luck)))
		117	{
		118	//TODO: take luck into account
		119	}
75	{	120	}
76	/* we have a winner */
77	((luck > 0) ? (luck = 1) : (luck = -1));
78	diff -= luck;
79	if (diff < 1)
80	return (omin); /check again /
81	((goodbad) ? (min += luck) : (diff));
82		121
83	return (MAX (omin, MIN (max, (ran % diff) + min)));	122	return rndm (r_min, r_max);
84	}
85	return ((ran % diff) + min);
86	}	123	}
87		124
88	/*	125	/*
89	* 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
90	* for exp loss calculations for players changing religions.	127	* for exp loss calculations for players changing religions.
91	*/	128	*/
92
93	sint64	129	sint64
94	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)
95	{	131	{
96	sint64 omin, diff, luck, ran;	132	sint64 omin = r_min;
97	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 */
98		135
99	omin = min;	136	/*
100	diff = max - min + 1;
101	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
102
103	if (max < 1 \|\| diff < 1)
104	{
105	LOG (llevError, "Calling random_roll with min=%" PRId64 " max=%" PRId64 "\n", min, max);
106	return (min); /* avoids a float exception */
107	}
108
109	/* Don't know of a portable call to get 64 bit random values.
110	* 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
111	* a little byteshifting. Do make sure the first one is only	138	* a little bitshifting.
112	* 32 bit, so we don't get skewed results
113	*/	139	*/
114	ran = (RANDOM () & 0xffffffff) \| ((sint64) RANDOM () << 32);	140	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
115		141
116	if (op->type != PLAYER)	142	if (op->type != PLAYER)
117	return ((ran % diff) + min);	143	return ((ran % range) + r_min);
118		144
119	luck = op->stats.luck;	145	int luck = op->stats.luck;
		146
120	if (RANDOM () % base < MIN (10, abs (luck)))	147	if (rndm (base) < min (10, abs (luck)))
121	{	148	{
122	/* we have a winner */	149	/* we have a winner */
123	((luck > 0) ? (luck = 1) : (luck = -1));	150	((luck > 0) ? (luck = 1) : (luck = -1));
124	diff -= luck;	151	range -= luck;
125	if (diff < 1)	152	if (range < 1)
126	return (omin); /check again /	153	return (omin); /check again /
		154
127	((goodbad) ? (min += luck) : (diff));	155	((goodbad) ? (r_min += luck) : (range));
128		156
129	return (MAX (omin, MIN (max, (ran % diff) + min)));	157	return (max (omin, min (r_max, (ran % range) + r_min)));
130	}	158	}
131	return ((ran % diff) + min);	159
		160	return ran % range + r_min;
132	}	161	}
133		162
134	/*	163	/*
135	* 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,
136	* 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.
137	* Generally, op should be the player/caster/hitter requesting the roll,	166	* Generally, op should be the player/caster/hitter requesting the roll,
138	* not the recipient (ie, the poor slob getting hit).	167	* not the recipient (ie, the poor slob getting hit).
139	* The args are num D size (ie 4d6) [garbled 20010916]	168	* The args are num D size (ie 4d6) [garbled 20010916]
140	*/	169	*/
141
142	int	170	int
143	die_roll (int num, int size, const object *op, int goodbad)	171	die_roll (int num, int size, const object *op, int goodbad)
144	{	172	{
145	int min, diff, luck, total, i, gotlucky, base, ran;	173	int min, luck, total, i, gotlucky;
146		174
147	diff = size;	175	int diff = size;
148	min = 1;	176	min = 1;
149	luck = total = gotlucky = 0;	177	luck = total = gotlucky = 0;
150	((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
151	if (size < 2 \|\| diff < 1)	180	if (size < 2 \|\| diff < 1)
152	{	181	{
153	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);
154	return (num); /* avoids a float exception */	183	return num; /* avoids a float exception */
155	}	184	}
156		185
157	if (op->type == PLAYER)	186	if (op->type == PLAYER)
158	luck = op->stats.luck;	187	luck = op->stats.luck;
159		188
160	for (i = 0; i < num; i++)	189	for (i = 0; i < num; i++)
161	{	190	{
162	if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky)	191	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
163	{	192	{
164	/* we have a winner */	193	/* we have a winner */
165	gotlucky++;	194	gotlucky++;
166	((luck > 0) ? (luck = 1) : (luck = -1));	195	((luck > 0) ? (luck = 1) : (luck = -1));
167	diff -= luck;	196	diff -= luck;
168	if (diff < 1)	197	if (diff < 1)
169	return (num); /check again /	198	return (num); /check again /
170	((goodbad) ? (min += luck) : (diff));	199	((goodbad) ? (min += luck) : (diff));
171	ran = RANDOM ();
172	total += MAX (1, MIN (size, (ran % diff) + min));	200	total += MAX (1, MIN (size, rndm (diff) + min));
173	}	201	}
174	else	202	else
175	{
176	total += RANDOM () % size + 1;	203	total += rndm (size) + 1;
177	}
178	}	204	}
		205
179	return (total);	206	return total;
180	}
181
182	/*
183	* Another convenience function. Returns a number between min and max.
184	* It is suggested one use these functions rather than RANDOM()%, as it
185	* would appear that a number of off-by-one-errors exist due to improper
186	* use of %. This should also prevent SIGFPE.
187	*/
188
189	int
190	rndm (int min, int max)
191	{
192	int diff;
193
194	diff = max - min + 1;
195	if (max < 1 \|\| diff < 1)
196	return (min);
197
198	return (RANDOM () % diff + min);
199	}
200
201	/* decay and destroy perishable items in a map */
202	void
203	maptile::decay_objects ()
204	{
205	if (!spaces)
206	return;
207
208	for (mapspace *ms = spaces + size (); ms-- > spaces; )
209	for (object above, op = ms->bot; op; op = above)
210	{
211	above = op->above;
212
213	bool destroy = 0;
214
215	// do not decay anything above unique floor tiles (yet :)
216	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
217	break;
218
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)
223	\|\| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR)
224	\|\| QUERY_FLAG (op, FLAG_UNPAID)
225	\|\| op->is_alive ())
226	; // do not decay
227	else if (op->is_weapon ())
228	{
229	op->stats.dam--;
230	if (op->stats.dam < 0)
231	destroy = 1;
232	}
233	else if (op->is_armor ())
234	{
235	op->stats.ac--;
236	if (op->stats.ac < 0)
237	destroy = 1;
238	}
239	else if (op->type == FOOD)
240	{
241	op->stats.food -= rndm (5, 20);
242	if (op->stats.food < 0)
243	destroy = 1;
244	}
245	else
246	{
247	int mat = op->material;
248
249	if (mat & M_PAPER
250	\|\| mat & M_LEATHER
251	\|\| mat & M_WOOD
252	\|\| mat & M_ORGANIC
253	\|\| mat & M_CLOTH
254	\|\| mat & M_LIQUID
255	\|\| (mat & M_IRON && rndm (1, 5) == 1)
256	\|\| (mat & M_GLASS && rndm (1, 2) == 1)
257	\|\| ((mat & M_STONE \|\| mat & M_ADAMANT) && rndm (1, 10) == 1)
258	\|\| ((mat & M_SOFT_METAL \|\| mat & M_BONE) && rndm (1, 3) == 1)
259	\|\| (mat & M_ICE && temp > 32))
260	destroy = 1;
261	}
262
263	/* adjust overall chance below */
264	if (destroy && rndm (0, 1))
265	op->destroy ();
266	}
267	}	207	}
268		208
269	/* convert materialname to materialtype_t */	209	/* convert materialname to materialtype_t */
270		210
271	materialtype_t *	211	materialtype_t *
272	name_to_material (const char *name)	212	name_to_material (const shstr_cmp name)
273	{	213	{
274	materialtype_t mt, nmt;	214	for (materialtype_t *mt = materialt; mt; mt = mt->next)
		215	if (name == mt->name)
		216	return mt;
275		217
276	mt = NULL;
277	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
278	{
279	if (strcmp (name, nmt->name) == 0)
280	{
281	mt = nmt;
282	break;
283	}
284	}
285	return mt;	218	return 0;
286	}	219	}
287		220
288	/* when doing transmutation of objects, we have to recheck the resistances,	221	/* when doing transmutation of objects, we have to recheck the resistances,
289	* as some that did not apply previously, may apply now.	222	* as some that did not apply previously, may apply now.
290	*/	223	*/
291
292	void	224	void
293	transmute_materialname (object op, const object change)	225	transmute_materialname (object op, const object change)
294	{	226	{
295	materialtype_t *mt;	227	materialtype_t *mt;
296	int j;	228	int j;
297		229
298	if (op->materialname == NULL)	230	if (!op->materialname)
299	return;	231	return;
300		232
301	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))	233	if (op->materialname != change->materialname)
302	return;	234	return;
303		235
304	if (!op->is_armor ())	236	if (!op->is_armor ())
305	return;	237	return;
306		238
307	mt = name_to_material (op->materialname);	239	mt = name_to_material (op->materialname);
308	if (!mt)	240	if (!mt)
309	{	241	{
310	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);
311	return;	243	return;
312	}	244	}
313		245
314	for (j = 0; j < NROFATTACKS; j++)	246	for (j = 0; j < NROFATTACKS; j++)
315	if (op->resist[j] == 0 && change->resist[j] != 0)	247	if (op->resist[j] == 0 && change->resist[j] != 0)
…		…
326	void	258	void
327	set_materialname (object op, int difficulty, materialtype_t nmt)	259	set_materialname (object op, int difficulty, materialtype_t nmt)
328	{	260	{
329	materialtype_t mt, lmt;	261	materialtype_t mt, lmt;
330		262
331	#ifdef NEW_MATERIAL_CODE
332	int j;
333	#endif
334
335	if (op->materialname != NULL)	263	if (!op->materialname)
336	return;	264	return;
337		265
338		266	if (nmt)
339		267	lmt = nmt;
340	if (nmt == NULL)	268	else
341	{	269	{
342	lmt = NULL;	270	lmt = 0;
343	#ifndef NEW_MATERIAL_CODE	271
344	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)	272	for (mt = materialt; mt; mt = mt->next)
345	{	273	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
346	if (op->material & mt->material)	274	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
347	{	275	{
348	lmt = mt;	276	lmt = mt;
		277	if (!(op->is_weapon () \|\| op->is_armor ()))
349	break;	278	break;
350	}	279	}
351	}
352
353	#else
354	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
355	{
356	if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
357	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
358	{
359	lmt = mt;
360	if (!(op->is_weapon () \|\| op->is_armor ()))
361	break;
362	}
363	}
364	#endif
365	}
366	else
367	{	280	}
368	lmt = nmt;	281
		282	if (lmt)
369	}	283	{
370
371	if (lmt != NULL)
372	{
373	#ifndef NEW_MATERIAL_CODE
374	op->materialname = lmt->name;
375	return;
376	#else
377
378	if (op->stats.dam && op->is_weapon ())	284	if (op->stats.dam && op->is_weapon ())
379	{	285	{
380	op->stats.dam += lmt->damage;	286	op->stats.dam += lmt->damage;
381	if (op->stats.dam < 1)	287	if (op->stats.dam < 1)
382	op->stats.dam = 1;	288	op->stats.dam = 1;
383	}	289	}
		290
384	if (op->stats.sp && op->type == BOW)	291	if (op->stats.sp && op->type == BOW)
385	op->stats.sp += lmt->sp;	292	op->stats.sp += lmt->sp;
386	if (op->stats.wc && op->is_weapon ())	293	if (op->stats.wc && op->is_weapon ())
387	op->stats.wc += lmt->wc;	294	op->stats.wc += lmt->wc;
388	if (op->is_armor ())	295	if (op->is_armor ())
389	{	296	{
390	if (op->stats.ac)	297	if (op->stats.ac)
391	op->stats.ac += lmt->ac;	298	op->stats.ac += lmt->ac;
		299
392	for (j = 0; j < NROFATTACKS; j++)	300	for (int j = 0; j < NROFATTACKS; j++)
393	if (op->resist[j] != 0)	301	if (op->resist[j] != 0)
394	{	302	{
395	op->resist[j] += lmt->mod[j];	303	op->resist[j] += lmt->mod[j];
396	if (op->resist[j] > 100)	304	if (op->resist[j] > 100)
397	op->resist[j] = 100;	305	op->resist[j] = 100;
398	if (op->resist[j] < -100)	306	if (op->resist[j] < -100)
399	op->resist[j] = -100;	307	op->resist[j] = -100;
400	}	308	}
401	}	309	}
		310
402	op->materialname = add_string (lmt->name);	311	op->materialname = lmt->name;
403	/* dont make it unstackable if it doesn't need to be */	312	/* dont make it unstackable if it doesn't need to be */
404	if (op->is_weapon () \|\| op->is_armor ())	313	if (op->is_weapon () \|\| op->is_armor ())
405	{	314	{
406	op->weight = (op->weight * lmt->weight) / 100;	315	op->weight = (op->weight * lmt->weight) / 100;
407	op->value = (op->value * lmt->value) / 100;	316	op->value = (op->value * lmt->value) / 100;
408	}	317	}
409	#endif
410	}	318	}
411	}	319	}
412		320
413	/*	321	/*
414	* Strip out the media tags from a String.	322	* Strip out the media tags from a String.
…		…
509	* 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
510	* 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.
511	* This function will also strip all trailing non alphanumeric characters.	419	* This function will also strip all trailing non alphanumeric characters.
512	* It does not insert an oxford comma.	420	* It does not insert an oxford comma.
513	*/	421	*/
514
515	void	422	void
516	make_list_like (char *input)	423	make_list_like (char *input)
517	{	424	{
518	char *p, tmp[MAX_BUF];	425	char *p, tmp[MAX_BUF];
519	int i;	426	int i;
…		…
542	strcpy (input, tmp);	449	strcpy (input, tmp);
543		450
544	return;	451	return;
545	}	452	}
546		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
547	/////////////////////////////////////////////////////////////////////////////	476	/////////////////////////////////////////////////////////////////////////////
		477
		478	void
		479	fork_abort (const char *msg)
		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
		519	LOG (llevError, "fork abort: %s\n", msg);
		520	}
548		521
549	void *salloc_ (int n) throw (std::bad_alloc)	522	void *salloc_ (int n) throw (std::bad_alloc)
550	{	523	{
551	void *ptr = g_slice_alloc (n);	524	void *ptr = g_slice_alloc (n);
552		525
553	if (!ptr)	526	if (!ptr)
554	throw std::bad_alloc ();	527	throw std::bad_alloc ();
555		528
		529	slice_alloc += n;
556	return ptr;	530	return ptr;
557	}	531	}
558		532
559	void salloc_ (int n, void src) throw (std::bad_alloc)	533	void salloc_ (int n, void src) throw (std::bad_alloc)
560	{	534	{
…		…
566	memset (ptr, 0, n);	540	memset (ptr, 0, n);
567		541
568	return ptr;	542	return ptr;
569	}	543	}
570		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
571	void assign (char dst, const char src, int maxlen)	589	assign (char dst, const char src, int maxsize)
572	{	590	{
573	if (!src)	591	if (!src)
574	src = "";	592	src = "";
575		593
576	int len = strlen (src);	594	int len = strlen (src);
577		595
578	if (len >= maxlen - 1)	596	if (len >= maxsize)
579	{	597	{
580	if (maxlen <= 4)	598	if (maxsize <= 4)
581	{	599	{
582	memset (dst, '.', maxlen - 1);	600	memset (dst, '.', maxsize - 2);
583	dst [maxlen - 1] = 0;	601	dst [maxsize - 1] = 0;
584	}	602	}
585	else	603	else
586	{	604	{
587	memcpy (dst, src, maxlen - 4);	605	memcpy (dst, src, maxsize - 4);
588	memcpy (dst + maxlen - 4, "...", 4);	606	memcpy (dst + maxsize - 4, "...", 4);
589	}	607	}
		608
		609	len = maxsize;
590	}	610	}
591	else	611	else
592	memcpy (dst, src, len + 1);	612	memcpy (dst, src, ++len);
		613
		614	return len;
		615	}
		616
		617	char *
		618	vformat (const char *format, va_list ap)
		619	{
		620	static dynbuf_text buf; buf.clear ();
		621	buf.vprintf (format, ap);
		622	return buf;
		623	}
		624
		625	char *
		626	format (const char *format, ...)
		627	{
		628	va_list ap;
		629	va_start (ap, format);
		630	char *buf = vformat (format, ap);
		631	va_end (ap);
		632
		633	return buf;
593	}	634	}
594		635
595	tstamp now ()	636	tstamp now ()
596	{	637	{
597	struct timeval tv;	638	struct timeval tv;
…		…
608		649
609	int diff = (b - a) & 7;	650	int diff = (b - a) & 7;
610	return diff <= 1 \|\| diff >= 7;	651	return diff <= 1 \|\| diff >= 7;
611	}	652	}
612		653
		654	/* crc32 0xdebb20e3 table and supplementary functions. */
		655	extern const uint32_t crc_32_tab[256] =
		656	{
		657	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		658	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		659	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		660	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		661	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		662	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		663	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		664	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		665	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		666	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		667	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		668	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		669	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		670	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		671	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		672	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		673	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		674	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		675	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		676	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		677	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		678	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		679	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		680	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		681	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		682	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		683	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		684	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		685	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		686	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		687	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		688	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		689	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		690	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		691	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		692	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		693	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		694	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		695	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		696	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		697	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		698	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		699	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		700	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		701	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		702	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		703	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		704	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		705	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		706	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		707	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		708	0x2d02ef8dL
		709	};
		710
		711	void thread::start (void (start_routine)(void ), void arg)
		712	{
		713	pthread_attr_t attr;
		714
		715	pthread_attr_init (&attr);
		716	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
		717	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
		718	? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
		719	#ifdef PTHREAD_SCOPE_PROCESS
		720	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
		721	#endif
		722
		723	sigset_t fullsigset, oldsigset;
		724	sigfillset (&fullsigset);
		725
		726	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
		727
		728	if (pthread_create (&id, &attr, start_routine, arg))
		729	cleanup ("unable to create a new thread");
		730
		731	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
		732	}
		733

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.36 by pippijn, Sat Jan 6 14:42:29 2007 UTC vs. Revision 1.90 by root, Thu Oct 15 21:09:32 2009 UTC

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Comparing deliantra/server/common/utils.C (file contents):
Revision 1.36 by pippijn, Sat Jan 6 14:42:29 2007 UTC vs.
Revision 1.90 by root, Thu Oct 15 21:09:32 2009 UTC