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

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.13 by root, Tue Sep 12 21:10:31 2006 UTC vs.
Revision 1.85 by root, Wed Dec 31 17:35:37 2008 UTC

…		…
1	/*	1	/*
2	CrossFire, A Multiplayer game for X-windows	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3		3	*
		4	* Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
4	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
5	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
6		7	*
7	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
8	it under the terms of the GNU General Public License as published by	9	* it under the terms of the GNU General Public License as published by
9	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
10	(at your option) any later version.	11	* (at your option) any later version.
11		12	*
12	This program is distributed in the hope that it will be useful,	13	* This program is distributed in the hope that it will be useful,
13	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15	GNU General Public License for more details.	16	* GNU General Public License for more details.
16		17	*
17	You should have received a copy of the GNU General Public License	18	* You should have received a copy of the GNU General Public License
18	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
19	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
20		21	* The authors can be reached via e-mail to <support@deliantra.net>
21	The authors can be reached via e-mail at crossfire-devel@real-time.com
22	*/	22	*/
23		23
24	/*	24	/*
25	* General convenience functions for crossfire.	25	* General convenience functions for crossfire.
26	*/	26	*/
27		27
		28	#include <cstdlib>
		29	#include <sys/types.h>
		30	#include <unistd.h>
		31	#include <sys/time.h>
		32	#include <time.h>
		33	#include <signal.h>
		34
28	#include <global.h>	35	#include <global.h>
29	#include <funcpoint.h>
30	#include <material.h>	36	#include <material.h>
31		37
		38	#include <sys/time.h>
		39	#include <sys/resource.h>
		40
32	#include <glib.h>	41	#include <glib.h>
		42
		43	refcnt_base::refcnt_t refcnt_dummy;
		44	ssize_t slice_alloc;
		45	rand_gen rndm, rmg_rndm;
		46
		47	void
		48	tausworthe_random_generator::seed (uint32_t seed)
		49	{
		50	state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
		51	state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
		52	state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
		53	state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U;
		54
		55	for (int i = 11; --i; )
		56	next ();
		57	}
		58
		59	uint32_t
		60	tausworthe_random_generator::next ()
		61	{
		62	state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
		63	state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
		64	state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
		65	state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
		66
		67	return state [0] ^ state [1] ^ state [2] ^ state [3];
		68	}
		69
		70	template<class generator>
		71	uint32_t
		72	random_number_generator<generator>::get_range (uint32_t num)
		73	{
		74	return (this->next () * (uint64_t)num) >> 32U;
		75	}
		76
		77	// return a number within (min .. max)
		78	template<class generator>
		79	int
		80	random_number_generator<generator>::get_range (int r_min, int r_max)
		81	{
		82	return r_min + get_range (max (r_max - r_min + 1, 0));
		83	}
		84
		85	template struct random_number_generator<tausworthe_random_generator>;
		86	template struct random_number_generator<xorshift_random_generator>;
33		87
34	/*	88	/*
35	* The random functions here take luck into account when rolling random	89	* The random functions here take luck into account when rolling random
36	* dice or numbers. This function has less of an impact the larger the	90	* dice or numbers. This function has less of an impact the larger the
37	* difference becomes in the random numbers. IE, the effect is lessened	91	* difference becomes in the random numbers. IE, the effect is lessened
44	* Roll a random number between min and max. Uses op to determine luck,	98	* Roll a random number between min and max. Uses op to determine luck,
45	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.	99	* and if goodbad is non-zero, luck increases the roll, if zero, it decreases.
46	* Generally, op should be the player/caster/hitter requesting the roll,	100	* Generally, op should be the player/caster/hitter requesting the roll,
47	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	101	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
48	*/	102	*/
49
50	int	103	int
51	random_roll (int min, int max, const object *op, int goodbad)	104	random_roll (int r_min, int r_max, const object *op, int goodbad)
52	{	105	{
53	int omin, diff, luck, base, ran;	106	r_max = max (r_min, r_max);
54		107
55	omin = min;	108	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
56	diff = max - min + 1;
57	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
58		109
59	if (max < 1 \|\| diff < 1)
60	{
61	LOG (llevError, "Calling random_roll with min=%d max=%d\n", min, max);
62	return (min); /* avoids a float exception */
63	}
64
65	ran = RANDOM ();
66
67	if (op->type != PLAYER)	110	if (op->type == PLAYER)
68	return ((ran % diff) + min);	111	{
69
70	luck = op->stats.luck;	112	int luck = op->stats.luck;
71	if (RANDOM () % base < MIN (10, abs (luck)))	113
		114	if (rndm (base) < min (10, abs (luck)))
		115	{
		116	//TODO: take luck into account
		117	}
72	{	118	}
73	/* we have a winner */
74	((luck > 0) ? (luck = 1) : (luck = -1));
75	diff -= luck;
76	if (diff < 1)
77	return (omin); /check again /
78	((goodbad) ? (min += luck) : (diff));
79		119
80	return (MAX (omin, MIN (max, (ran % diff) + min)));	120	return rndm (r_min, r_max);
81	}
82	return ((ran % diff) + min);
83	}	121	}
84		122
85	/*	123	/*
86	* This is a 64 bit version of random_roll above. This is needed	124	* This is a 64 bit version of random_roll above. This is needed
87	* for exp loss calculations for players changing religions.	125	* for exp loss calculations for players changing religions.
88	*/	126	*/
89
90	sint64	127	sint64
91	random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)	128	random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad)
92	{	129	{
93	sint64 omin, diff, luck, ran;	130	sint64 omin = r_min;
94	int base;	131	sint64 range = max (0, r_max - r_min + 1);
		132	int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */
95		133
96	omin = min;	134	/*
97	diff = max - min + 1;
98	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
99
100	if (max < 1 \|\| diff < 1)
101	{
102	#ifndef WIN32
103	LOG (llevError, "Calling random_roll with min=%lld max=%lld\n", min, max);
104	#else
105	LOG (llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max);
106	#endif
107	return (min); /* avoids a float exception */
108	}
109
110	/* Don't know of a portable call to get 64 bit random values.
111	* So make a call to get two 32 bit random numbers, and just to	135	* Make a call to get two 32 bit unsigned random numbers, and just to
112	* a little byteshifting. Do make sure the first one is only	136	* a little bitshifting.
113	* 32 bit, so we don't get skewed results
114	*/	137	*/
115	ran = (RANDOM () & 0xffffffff) \| ((sint64) RANDOM () << 32);	138	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
116		139
117	if (op->type != PLAYER)	140	if (op->type != PLAYER)
118	return ((ran % diff) + min);	141	return ((ran % range) + r_min);
119		142
120	luck = op->stats.luck;	143	int luck = op->stats.luck;
		144
121	if (RANDOM () % base < MIN (10, abs (luck)))	145	if (rndm (base) < min (10, abs (luck)))
122	{	146	{
123	/* we have a winner */	147	/* we have a winner */
124	((luck > 0) ? (luck = 1) : (luck = -1));	148	((luck > 0) ? (luck = 1) : (luck = -1));
125	diff -= luck;	149	range -= luck;
126	if (diff < 1)	150	if (range < 1)
127	return (omin); /check again /	151	return (omin); /check again /
		152
128	((goodbad) ? (min += luck) : (diff));	153	((goodbad) ? (r_min += luck) : (range));
129		154
130	return (MAX (omin, MIN (max, (ran % diff) + min)));	155	return (max (omin, min (r_max, (ran % range) + r_min)));
131	}	156	}
132	return ((ran % diff) + min);	157
		158	return ran % range + r_min;
133	}	159	}
134		160
135	/*	161	/*
136	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,	162	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,
137	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.	163	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.
138	* Generally, op should be the player/caster/hitter requesting the roll,	164	* Generally, op should be the player/caster/hitter requesting the roll,
139	* not the recipient (ie, the poor slob getting hit).	165	* not the recipient (ie, the poor slob getting hit).
140	* The args are num D size (ie 4d6) [garbled 20010916]	166	* The args are num D size (ie 4d6) [garbled 20010916]
141	*/	167	*/
142
143	int	168	int
144	die_roll (int num, int size, const object *op, int goodbad)	169	die_roll (int num, int size, const object *op, int goodbad)
145	{	170	{
146	int min, diff, luck, total, i, gotlucky, base, ran;	171	int min, luck, total, i, gotlucky;
147		172
148	diff = size;	173	int diff = size;
149	min = 1;	174	min = 1;
150	luck = total = gotlucky = 0;	175	luck = total = gotlucky = 0;
151	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	176	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
		177
152	if (size < 2 \|\| diff < 1)	178	if (size < 2 \|\| diff < 1)
153	{	179	{
154	LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);	180	LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
155	return (num); /* avoids a float exception */	181	return num; /* avoids a float exception */
156	}	182	}
157		183
158	if (op->type == PLAYER)	184	if (op->type == PLAYER)
159	luck = op->stats.luck;	185	luck = op->stats.luck;
160		186
161	for (i = 0; i < num; i++)	187	for (i = 0; i < num; i++)
162	{	188	{
163	if (RANDOM () % base < MIN (10, abs (luck)) && !gotlucky)	189	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
164	{	190	{
165	/* we have a winner */	191	/* we have a winner */
166	gotlucky++;	192	gotlucky++;
167	((luck > 0) ? (luck = 1) : (luck = -1));	193	((luck > 0) ? (luck = 1) : (luck = -1));
168	diff -= luck;	194	diff -= luck;
169	if (diff < 1)	195	if (diff < 1)
170	return (num); /check again /	196	return (num); /check again /
171	((goodbad) ? (min += luck) : (diff));	197	((goodbad) ? (min += luck) : (diff));
172	ran = RANDOM ();
173	total += MAX (1, MIN (size, (ran % diff) + min));	198	total += MAX (1, MIN (size, rndm (diff) + min));
174	}	199	}
175	else	200	else
176	{
177	total += RANDOM () % size + 1;	201	total += rndm (size) + 1;
178	}
179	}	202	}
		203
180	return (total);	204	return total;
181	}
182
183	/*
184	* Another convenience function. Returns a number between min and max.
185	* It is suggested one use these functions rather than RANDOM()%, as it
186	* would appear that a number of off-by-one-errors exist due to improper
187	* use of %. This should also prevent SIGFPE.
188	*/
189
190	int
191	rndm (int min, int max)
192	{
193	int diff;
194
195	diff = max - min + 1;
196	if (max < 1 \|\| diff < 1)
197	return (min);
198
199	return (RANDOM () % diff + min);
200	}
201
202	/* decay and destroy persihable items in a map */
203
204	void
205	decay_objects (mapstruct *m)
206	{
207	int x, y, destroy;
208	object op, otmp;
209
210	if (m->unique)
211	return;
212
213	for (x = 0; x < MAP_WIDTH (m); x++)
214	for (y = 0; y < MAP_HEIGHT (m); y++)
215	for (op = get_map_ob (m, x, y); op; op = otmp)
216	{
217	destroy = 0;
218	otmp = op->above;
219	if (QUERY_FLAG (op, FLAG_IS_FLOOR) && QUERY_FLAG (op, FLAG_UNIQUE))
220	break;
221	if (QUERY_FLAG (op, FLAG_IS_FLOOR) \|\|
222	QUERY_FLAG (op, FLAG_OBJ_ORIGINAL) \|\|
223	QUERY_FLAG (op, FLAG_OBJ_SAVE_ON_OVL) \|\|
224	QUERY_FLAG (op, FLAG_UNIQUE) \|\| QUERY_FLAG (op, FLAG_OVERLAY_FLOOR) \|\| QUERY_FLAG (op, FLAG_UNPAID) \|\| IS_LIVE (op))
225	continue;
226	/* otherwise, we decay and destroy */
227	if (IS_WEAPON (op))
228	{
229	op->stats.dam--;
230	if (op->stats.dam < 0)
231	destroy = 1;
232	}
233	else if (IS_ARMOR (op))
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	if (op->material & M_PAPER \|\| op->material & M_LEATHER \|\|
248	op->material & M_WOOD \|\| op->material & M_ORGANIC \|\| op->material & M_CLOTH \|\| op->material & M_LIQUID)
249	destroy = 1;
250	if (op->material & M_IRON && rndm (1, 5) == 1)
251	destroy = 1;
252	if (op->material & M_GLASS && rndm (1, 2) == 1)
253	destroy = 1;
254	if ((op->material & M_STONE \|\| op->material & M_ADAMANT) && rndm (1, 10) == 1)
255	destroy = 1;
256	if ((op->material & M_SOFT_METAL \|\| op->material & M_BONE) && rndm (1, 3) == 1)
257	destroy = 1;
258	if (op->material & M_ICE && MAP_TEMP (m) > 32)
259	destroy = 1;
260	}
261	/* adjust overall chance below */
262	if (destroy && rndm (0, 1))
263	{
264	remove_ob (op);
265	free_object (op);
266	}
267	}
268	}	205	}
269		206
270	/* convert materialname to materialtype_t */	207	/* convert materialname to materialtype_t */
271		208
272	materialtype_t *	209	materialtype_t *
273	name_to_material (const char *name)	210	name_to_material (const shstr_cmp name)
274	{	211	{
275	materialtype_t mt, nmt;	212	for (materialtype_t *mt = materialt; mt; mt = mt->next)
		213	if (name == mt->name)
		214	return mt;
276		215
277	mt = NULL;
278	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt = nmt->next)
279	{
280	if (strcmp (name, nmt->name) == 0)
281	{
282	mt = nmt;
283	break;
284	}
285	}
286	return mt;	216	return 0;
287	}	217	}
288		218
289	/* when doing transmutation of objects, we have to recheck the resistances,	219	/* when doing transmutation of objects, we have to recheck the resistances,
290	* as some that did not apply previously, may apply now.	220	* as some that did not apply previously, may apply now.
291	*/	221	*/
292
293	void	222	void
294	transmute_materialname (object op, const object change)	223	transmute_materialname (object op, const object change)
295	{	224	{
296	materialtype_t *mt;	225	materialtype_t *mt;
297	int j;	226	int j;
298		227
299	if (op->materialname == NULL)	228	if (!op->materialname)
300	return;	229	return;
301		230
302	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))	231	if (op->materialname != change->materialname)
303	return;	232	return;
304		233
305	if (!IS_ARMOR (op))	234	if (!op->is_armor ())
306	return;	235	return;
307		236
308	mt = name_to_material (op->materialname);	237	mt = name_to_material (op->materialname);
309	if (!mt)	238	if (!mt)
310	{	239	{
311	LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->name, &op->name, &op->materialname);	240	LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
312	return;	241	return;
313	}	242	}
314		243
315	for (j = 0; j < NROFATTACKS; j++)	244	for (j = 0; j < NROFATTACKS; j++)
316	if (op->resist[j] == 0 && change->resist[j] != 0)	245	if (op->resist[j] == 0 && change->resist[j] != 0)
…		…
327	void	256	void
328	set_materialname (object op, int difficulty, materialtype_t nmt)	257	set_materialname (object op, int difficulty, materialtype_t nmt)
329	{	258	{
330	materialtype_t mt, lmt;	259	materialtype_t mt, lmt;
331		260
332	#ifdef NEW_MATERIAL_CODE
333	int j;
334	#endif
335
336	if (op->materialname != NULL)	261	if (!op->materialname)
337	return;	262	return;
338		263
339		264	if (nmt)
340		265	lmt = nmt;
341	if (nmt == NULL)	266	else
342	{	267	{
343	lmt = NULL;	268	lmt = 0;
344	#ifndef NEW_MATERIAL_CODE	269
345	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)	270	for (mt = materialt; mt; mt = mt->next)
346	{	271	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
347	if (op->material & mt->material)	272	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
348	{	273	{
349	lmt = mt;	274	lmt = mt;
		275	if (!(op->is_weapon () \|\| op->is_armor ()))
350	break;	276	break;
351	}	277	}
352	}
353
354	#else
355	for (mt = materialt; mt != NULL && mt->next != NULL; mt = mt->next)
356	{
357	if (op->material & mt->material && rndm (1, 100) <= mt->chance &&
358	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
359	{
360	lmt = mt;
361	if (!(IS_WEAPON (op) \|\| IS_ARMOR (op)))
362	break;
363	}
364	}
365	#endif
366	}
367	else
368	{	278	}
369	lmt = nmt;	279
		280	if (lmt)
370	}	281	{
371		282	if (op->stats.dam && op->is_weapon ())
372	if (lmt != NULL)
373	{
374	#ifndef NEW_MATERIAL_CODE
375	op->materialname = lmt->name;
376	return;
377	#else
378
379	if (op->stats.dam && IS_WEAPON (op))
380	{	283	{
381	op->stats.dam += lmt->damage;	284	op->stats.dam += lmt->damage;
382	if (op->stats.dam < 1)	285	if (op->stats.dam < 1)
383	op->stats.dam = 1;	286	op->stats.dam = 1;
384	}	287	}
		288
385	if (op->stats.sp && op->type == BOW)	289	if (op->stats.sp && op->type == BOW)
386	op->stats.sp += lmt->sp;	290	op->stats.sp += lmt->sp;
387	if (op->stats.wc && IS_WEAPON (op))	291	if (op->stats.wc && op->is_weapon ())
388	op->stats.wc += lmt->wc;	292	op->stats.wc += lmt->wc;
389	if (IS_ARMOR (op))	293	if (op->is_armor ())
390	{	294	{
391	if (op->stats.ac)	295	if (op->stats.ac)
392	op->stats.ac += lmt->ac;	296	op->stats.ac += lmt->ac;
		297
393	for (j = 0; j < NROFATTACKS; j++)	298	for (int j = 0; j < NROFATTACKS; j++)
394	if (op->resist[j] != 0)	299	if (op->resist[j] != 0)
395	{	300	{
396	op->resist[j] += lmt->mod[j];	301	op->resist[j] += lmt->mod[j];
397	if (op->resist[j] > 100)	302	if (op->resist[j] > 100)
398	op->resist[j] = 100;	303	op->resist[j] = 100;
399	if (op->resist[j] < -100)	304	if (op->resist[j] < -100)
400	op->resist[j] = -100;	305	op->resist[j] = -100;
401	}	306	}
402	}	307	}
		308
403	op->materialname = add_string (lmt->name);	309	op->materialname = lmt->name;
404	/* dont make it unstackable if it doesn't need to be */	310	/* dont make it unstackable if it doesn't need to be */
405	if (IS_WEAPON (op) \|\| IS_ARMOR (op))	311	if (op->is_weapon () \|\| op->is_armor ())
406	{	312	{
407	op->weight = (op->weight * lmt->weight) / 100;	313	op->weight = (op->weight * lmt->weight) / 100;
408	op->value = (op->value * lmt->value) / 100;	314	op->value = (op->value * lmt->value) / 100;
409	}	315	}
410	#endif
411	}	316	}
412	}	317	}
413		318
414	/*	319	/*
415	* Strip out the media tags from a String.	320	* Strip out the media tags from a String.
…		…
510	* a 'list' for the purposes here, is a string of items, seperated by commas, except	415	* a 'list' for the purposes here, is a string of items, seperated by commas, except
511	* for the last entry, which has an 'and' before it, and a full stop (period) after it.	416	* for the last entry, which has an 'and' before it, and a full stop (period) after it.
512	* This function will also strip all trailing non alphanumeric characters.	417	* This function will also strip all trailing non alphanumeric characters.
513	* It does not insert an oxford comma.	418	* It does not insert an oxford comma.
514	*/	419	*/
515
516	void	420	void
517	make_list_like (char *input)	421	make_list_like (char *input)
518	{	422	{
519	char *p, tmp[MAX_BUF];	423	char *p, tmp[MAX_BUF];
520	int i;	424	int i;
…		…
543	strcpy (input, tmp);	447	strcpy (input, tmp);
544		448
545	return;	449	return;
546	}	450	}
547		451
		452	/////////////////////////////////////////////////////////////////////////////
		453
		454	void
		455	fork_abort (const char *msg)
		456	{
		457	if (!fork ())
		458	{
		459	signal (SIGINT , SIG_IGN);
		460	signal (SIGTERM, SIG_IGN);
		461	signal (SIGABRT, SIG_IGN);
		462
		463	signal (SIGSEGV, SIG_DFL);
		464	signal (SIGBUS , SIG_DFL);
		465	signal (SIGILL , SIG_DFL);
		466	signal (SIGTRAP, SIG_DFL);
		467
		468	// try to put corefiles into a subdirectory, if existing, to allow
		469	// an administrator to reduce the I/O load.
		470	chdir ("cores");
		471
		472	// try to detach us from as many external dependencies as possible
		473	// as coredumping can take time by closing all fd's.
		474	{
		475	struct rlimit lim;
		476
		477	if (getrlimit (RLIMIT_NOFILE, &lim))
		478	lim.rlim_cur = 1024;
		479
		480	for (int i = 0; i < lim.rlim_cur; ++i)
		481	close (i);
		482	}
		483
		484	{
		485	sigset_t empty;
		486	sigemptyset (&empty);
		487	sigprocmask (SIG_SETMASK, &empty, 0);
		488	}
		489
		490	// try to coredump with SIGTRAP
		491	kill (getpid (), SIGTRAP);
		492	abort ();
		493	}
		494
		495	LOG (llevError, "fork abort: %s\n", msg);
		496	}
		497
548	void *alloc (int s) throw (std::bad_alloc)	498	void *salloc_ (int n) throw (std::bad_alloc)
549	{	499	{
550	void *p = g_slice_alloc (s);	500	void *ptr = g_slice_alloc (n);
551		501
552	if (!p)	502	if (!ptr)
553	throw std::bad_alloc ();	503	throw std::bad_alloc ();
554		504
		505	slice_alloc += n;
555	return p;	506	return ptr;
556	}	507	}
		508
		509	void salloc_ (int n, void src) throw (std::bad_alloc)
		510	{
		511	void *ptr = salloc_ (n);
		512
		513	if (src)
		514	memcpy (ptr, src, n);
		515	else
		516	memset (ptr, 0, n);
		517
		518	return ptr;
		519	}
		520
		521	/******************************************************************************/
		522
		523	#if DEBUG_SALLOC
		524
		525	#define MAGIC 0xa1b2c35543deadLL
		526
		527	void *g_slice_alloc (unsigned long size)
		528	{
		529	unsigned long p = (unsigned long ) (g_slice_alloc)(size + sizeof (unsigned long));
		530	*p++ = size ^ MAGIC;
		531	//fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
		532	return (void *)p;
		533	}
		534
		535	void *g_slice_alloc0 (unsigned long size)
		536	{
		537	return memset (g_slice_alloc (size), 0, size);
		538	}
		539
		540	void g_slice_free1 (unsigned long size, void *ptr)
		541	{
		542	//fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
		543	if (expect_true (ptr))
		544	{
		545	unsigned long p = (unsigned long )ptr;
		546	unsigned long s = *--p ^ MAGIC;
		547
		548	if (size != (unsigned long)(*p ^ MAGIC))
		549	{
		550	LOG (logBacktrace \| llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
		551	abort ();
		552	}
		553
		554	*p = MAGIC;
		555
		556	(g_slice_free1)(s + sizeof (unsigned long), p);
		557	}
		558	}
		559
		560	#endif
		561
		562	/******************************************************************************/
557		563
558	void assign (char dst, const char src, int maxlen)	564	void assign (char dst, const char src, int maxlen)
559	{	565	{
560	if (!src)	566	if (!src)
561	src = "";	567	src = "";
…		…
577	}	583	}
578	else	584	else
579	memcpy (dst, src, len + 1);	585	memcpy (dst, src, len + 1);
580	}	586	}
581		587
		588	const char *
		589	format (const char *format, ...)
		590	{
		591	static dynbuf_text buf;
		592
		593	buf.clear ();
		594
		595	va_list ap;
		596	va_start (ap, format);
		597	buf.vprintf (format, ap);
		598	va_end (ap);
		599
		600	return buf;
		601	}
		602
		603	tstamp now ()
		604	{
		605	struct timeval tv;
		606
		607	gettimeofday (&tv, 0);
		608	return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
		609	}
		610
		611	int
		612	similar_direction (int a, int b)
		613	{
		614	if (!a \|\| !b)
		615	return 0;
		616
		617	int diff = (b - a) & 7;
		618	return diff <= 1 \|\| diff >= 7;
		619	}
		620
		621	/* crc32 0xdebb20e3 table and supplementary functions. */
		622	extern const uint32_t crc_32_tab[256] =
		623	{
		624	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		625	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		626	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		627	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		628	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		629	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		630	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		631	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		632	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		633	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		634	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		635	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		636	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		637	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		638	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		639	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		640	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		641	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		642	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		643	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		644	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		645	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		646	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		647	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		648	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		649	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		650	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		651	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		652	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		653	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		654	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		655	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		656	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		657	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		658	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		659	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		660	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		661	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		662	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		663	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		664	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		665	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		666	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		667	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		668	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		669	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		670	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		671	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		672	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		673	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		674	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		675	0x2d02ef8dL
		676	};
		677
		678	void thread::start (void (start_routine)(void ), void arg)
		679	{
		680	pthread_attr_t attr;
		681
		682	pthread_attr_init (&attr);
		683	pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED);
		684	pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096
		685	? sizeof (long) * 4096 : PTHREAD_STACK_MIN);
		686	#ifdef PTHREAD_SCOPE_PROCESS
		687	pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS);
		688	#endif
		689
		690	sigset_t fullsigset, oldsigset;
		691	sigfillset (&fullsigset);
		692
		693	pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset);
		694
		695	if (pthread_create (&id, &attr, start_routine, arg))
		696	cleanup ("unable to create a new thread");
		697
		698	pthread_sigmask (SIG_SETMASK, &oldsigset, 0);
		699	}
		700

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.13 by root, Tue Sep 12 21:10:31 2006 UTC vs. Revision 1.85 by root, Wed Dec 31 17:35:37 2008 UTC

Diff Legend

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.13 by root, Tue Sep 12 21:10:31 2006 UTC vs.
Revision 1.85 by root, Wed Dec 31 17:35:37 2008 UTC