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

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:01 2006 UTC vs.
Revision 1.69 by root, Tue Jan 22 15:53:01 2008 UTC

…		…
1	/*	1	/*
2	* static char *rcsid_utils_c =	2	* This file is part of Deliantra, the Roguelike Realtime MMORPG.
3	* "$Id: utils.C,v 1.1 2006/08/13 17:16:01 elmex Exp $";	3	*
4	*/	4	* Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Deliantra team
5
6	/*
7	CrossFire, A Multiplayer game for X-windows
8
9	Copyright (C) 2002 Mark Wedel & Crossfire Development Team	5	* Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team
10	Copyright (C) 1992 Frank Tore Johansen	6	* Copyright (©) 1992,2007 Frank Tore Johansen
11		7	*
12	This program is free software; you can redistribute it and/or modify	8	* Deliantra is free software: you can redistribute it and/or modify
13	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
14	the Free Software Foundation; either version 2 of the License, or	10	* the Free Software Foundation, either version 3 of the License, or
15	(at your option) any later version.	11	* (at your option) any later version.
16		12	*
17	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,
18	but WITHOUT ANY WARRANTY; without even the implied warranty of	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
19	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20	GNU General Public License for more details.	16	* GNU General Public License for more details.
21		17	*
22	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
23	along with this program; if not, write to the Free Software	19	* along with this program. If not, see <http://www.gnu.org/licenses/>.
24	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.	20	*
25		21	* The authors can be reached via e-mail to <support@deliantra.net>
26	The authors can be reached via e-mail at crossfire-devel@real-time.com
27	*/	22	*/
28		23
29	/*	24	/*
30	* General convenience functions for crossfire.	25	* General convenience functions for crossfire.
31	*/	26	*/
		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>
32		34
33	#include <global.h>	35	#include <global.h>
34	#include <funcpoint.h>	36	#include <funcpoint.h>
35	#include <material.h>	37	#include <material.h>
		38
		39	#include <glib.h>
		40
		41	refcnt_base::refcnt_t refcnt_dummy;
		42	size_t slice_alloc;
		43	rand_gen rndm;
		44
		45	void
		46	tausworthe_random_generator::seed (uint32_t seed)
		47	{
		48	state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U;
		49	state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U;
		50	state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U;
		51	state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U;
		52
		53	for (int i = 11; --i; )
		54	operator ()();
		55	}
		56
		57	uint32_t
		58	tausworthe_random_generator::next ()
		59	{
		60	state [0] = ((state [0] & 0xFFFFFFFEU) << 18U) ^ (((state [0] << 6U) ^ state [0]) >> 13U);
		61	state [1] = ((state [1] & 0xFFFFFFF8U) << 2U) ^ (((state [1] << 2U) ^ state [1]) >> 27U);
		62	state [2] = ((state [2] & 0xFFFFFFF0U) << 7U) ^ (((state [2] << 13U) ^ state [2]) >> 21U);
		63	state [3] = ((state [3] & 0xFFFFFF80U) << 13U) ^ (((state [3] << 3U) ^ state [3]) >> 12U);
		64
		65	return state [0] ^ state [1] ^ state [2] ^ state [3];
		66	}
		67
		68	uint32_t
		69	tausworthe_random_generator::get_range (uint32_t num)
		70	{
		71	return (next () * (uint64_t)num) >> 32U;
		72	}
		73
		74	// return a number within (min .. max)
		75	int
		76	tausworthe_random_generator::get_range (int r_min, int r_max)
		77	{
		78	return r_min + get_range (max (r_max - r_min + 1, 0));
		79	}
36		80
37	/*	81	/*
38	* The random functions here take luck into account when rolling random	82	* 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	83	* 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	84	* 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,	91	* 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.	92	* 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,	93	* Generally, op should be the player/caster/hitter requesting the roll,
50	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]	94	* not the recipient (ie, the poor slob getting hit). [garbled 20010916]
51	*/	95	*/
52		96	int
53	int random_roll(int min, int max, const object *op, int goodbad) {	97	random_roll (int r_min, int r_max, const object *op, int goodbad)
54	int omin, diff, luck, base, ran;	98	{
		99	int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */
55		100
56	omin = min;	101	if (r_max < r_min)
57	diff = max - min + 1;	102	{
58	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */
59
60	if (max < 1 \|\| diff < 1) {
61	LOG(llevError, "Calling random_roll with min=%d max=%d\n", min, max);	103	LOG (llevError \| logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max);
62	return(min); /* avoids a float exception */	104	return r_min;
63	}	105	}
64		106
65	ran = RANDOM();
66
67	if (op->type != PLAYER)	107	if (op->type == PLAYER)
68	return((ran%diff)+min);	108	{
69
70	luck = op->stats.luck;	109	int luck = op->stats.luck;
71	if (RANDOM()%base < MIN(10, abs(luck))) {
72	/* we have a winner */
73	((luck > 0) ? (luck = 1) : (luck = -1));
74	diff -= luck;
75	if (diff < 1)
76	return(omin); /check again/
77	((goodbad) ? (min += luck) : (diff));
78		110
79	return(MAX(omin, MIN(max, (ran%diff)+min)));	111	if (rndm (base) < min (10, abs (luck)))
		112	{
		113	//TODO: take luck into account
		114	}
80	}	115	}
81	return((ran%diff)+min);	116
		117	return rndm (r_min, r_max);
82	}	118	}
83		119
84	/*	120	/*
85	* This is a 64 bit version of random_roll above. This is needed	121	* This is a 64 bit version of random_roll above. This is needed
86	* for exp loss calculations for players changing religions.	122	* for exp loss calculations for players changing religions.
87	*/	123	*/
88		124	sint64
89	sint64 random_roll64(sint64 min, sint64 max, const object *op, int goodbad) {	125	random_roll64 (sint64 min, sint64 max, const object *op, int goodbad)
90	sint64 omin, diff, luck, ran;	126	{
91	int base;
92
93	omin = min;	127	sint64 omin = min;
94	diff = max - min + 1;	128	sint64 diff = max - min + 1;
95	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	129	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
96		130
97	if (max < 1 \|\| diff < 1) {	131	if (diff < 0)
98	#ifndef WIN32	132	{
99	LOG(llevError, "Calling random_roll with min=%lld max=%lld\n", min, max);
100	#else
101	LOG(llevError, "Calling random_roll with min=%I64d max=%I64d\n", min, max);	133	LOG (llevError \| logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max);
102	#endif
103	return(min); /* avoids a float exception */	134	return (min); /* avoids a float exception */
104	}	135	}
105		136
106	/* Don't know of a portable call to get 64 bit random values.	137	/*
107	* So make a call to get two 32 bit random numbers, and just to	138	* Make a call to get two 32 bit unsigned random numbers, and just to
108	* a little byteshifting. Do make sure the first one is only	139	* a little bitshifting.
109	* 32 bit, so we don't get skewed results
110	*/	140	*/
111	ran = (RANDOM() & 0xffffffff) \| ((sint64)RANDOM() << 32);	141	sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31);
112		142
113	if (op->type != PLAYER)	143	if (op->type != PLAYER)
114	return((ran%diff)+min);	144	return ((ran % diff) + min);
115		145
116	luck = op->stats.luck;	146	int luck = op->stats.luck;
		147
117	if (RANDOM()%base < MIN(10, abs(luck))) {	148	if (rndm (base) < MIN (10, abs (luck)))
		149	{
118	/* we have a winner */	150	/* we have a winner */
119	((luck > 0) ? (luck = 1) : (luck = -1));	151	((luck > 0) ? (luck = 1) : (luck = -1));
120	diff -= luck;	152	diff -= luck;
121	if (diff < 1)	153	if (diff < 1)
122	return(omin); /check again/	154	return (omin); /check again /
		155
123	((goodbad) ? (min += luck) : (diff));	156	((goodbad) ? (min += luck) : (diff));
124		157
125	return(MAX(omin, MIN(max, (ran%diff)+min)));	158	return (MAX (omin, MIN (max, (ran % diff) + min)));
126	}	159	}
		160
127	return((ran%diff)+min);	161	return ran % diff + min;
128	}	162	}
129		163
130	/*	164	/*
131	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,	165	* Roll a number of dice (2d3, 4d6). Uses op to determine luck,
132	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.	166	* If goodbad is non-zero, luck increases the roll, if zero, it decreases.
133	* Generally, op should be the player/caster/hitter requesting the roll,	167	* Generally, op should be the player/caster/hitter requesting the roll,
134	* not the recipient (ie, the poor slob getting hit).	168	* not the recipient (ie, the poor slob getting hit).
135	* The args are num D size (ie 4d6) [garbled 20010916]	169	* The args are num D size (ie 4d6) [garbled 20010916]
136	*/	170	*/
137		171	int
138	int die_roll(int num, int size, const object *op, int goodbad) {	172	die_roll (int num, int size, const object *op, int goodbad)
		173	{
139	int min, diff, luck, total, i, gotlucky, base, ran;	174	int min, luck, total, i, gotlucky;
140		175
141	diff = size;	176	int diff = size;
142	min = 1;	177	min = 1;
143	luck = total = gotlucky = 0;	178	luck = total = gotlucky = 0;
144	((diff > 2) ? (base = 20) : (base = 50)); /* d2 and d3 are corner cases */	179	int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */
		180
145	if (size < 2 \|\| diff < 1) {	181	if (size < 2 \|\| diff < 1)
		182	{
146	LOG(llevError, "Calling die_roll with num=%d size=%d\n", num, size);	183	LOG (llevError, "Calling die_roll with num=%d size=%d\n", num, size);
147	return(num); /* avoids a float exception */	184	return num; /* avoids a float exception */
148	}	185	}
149		186
150	if (op->type == PLAYER)	187	if (op->type == PLAYER)
151	luck = op->stats.luck;	188	luck = op->stats.luck;
152		189
153	for (i = 0; i < num; i++) {	190	for (i = 0; i < num; i++)
		191	{
154	if (RANDOM()%base < MIN(10, abs(luck)) && !gotlucky) {	192	if (rndm (base) < MIN (10, abs (luck)) && !gotlucky)
		193	{
155	/* we have a winner */	194	/* we have a winner */
156	gotlucky++;	195	gotlucky++;
157	((luck > 0) ? (luck = 1) : (luck = -1));	196	((luck > 0) ? (luck = 1) : (luck = -1));
158	diff -= luck;	197	diff -= luck;
159	if (diff < 1)	198	if (diff < 1)
160	return(num); /check again/	199	return (num); /check again /
161	((goodbad) ? (min += luck) : (diff));	200	((goodbad) ? (min += luck) : (diff));
162	ran = RANDOM();
163	total += MAX(1, MIN(size, (ran%diff)+min));	201	total += MAX (1, MIN (size, rndm (diff) + min));
164	} else {	202	}
165	total += RANDOM()%size+1;	203	else
166	}	204	total += rndm (size) + 1;
167	}
168	return(total);
169	}
170
171	/*
172	* Another convenience function. Returns a number between min and max.
173	* It is suggested one use these functions rather than RANDOM()%, as it
174	* would appear that a number of off-by-one-errors exist due to improper
175	* use of %. This should also prevent SIGFPE.
176	*/
177
178	int rndm(int min, int max)
179	{
180	int diff;
181
182	diff = max - min + 1;
183	if (max < 1 \|\| diff < 1)
184	return(min);
185
186	return(RANDOM()%diff+min);
187	}
188
189	/* decay and destroy persihable items in a map */
190
191	void decay_objects(mapstruct *m)
192	{
193	int x, y, destroy;
194	object op, otmp;
195
196	if (m->unique)
197	return;
198
199	for (x=0; x < MAP_WIDTH(m); x++)
200	for (y=0; y < MAP_HEIGHT(m); y++)
201	for (op = get_map_ob(m, x, y); op; op = otmp) {
202	destroy = 0;
203	otmp = op->above;
204	if (QUERY_FLAG(op,FLAG_IS_FLOOR) && QUERY_FLAG(op, FLAG_UNIQUE))
205	break;
206	if (QUERY_FLAG(op, FLAG_IS_FLOOR) \|\|
207	QUERY_FLAG(op, FLAG_OBJ_ORIGINAL) \|\|
208	QUERY_FLAG(op, FLAG_OBJ_SAVE_ON_OVL) \|\|
209	QUERY_FLAG(op, FLAG_UNIQUE) \|\|
210	QUERY_FLAG(op, FLAG_OVERLAY_FLOOR) \|\|
211	QUERY_FLAG(op, FLAG_UNPAID) \|\| IS_LIVE(op))
212	continue;
213	/* otherwise, we decay and destroy */
214	if (IS_WEAPON(op)) {
215	op->stats.dam--;
216	if (op->stats.dam < 0)
217	destroy = 1;
218	} else if (IS_ARMOR(op)) {
219	op->stats.ac--;
220	if (op->stats.ac < 0)
221	destroy = 1;
222	} else if (op->type == FOOD) {
223	op->stats.food -= rndm(5,20);
224	if (op->stats.food < 0)
225	destroy = 1;
226	} else {
227	if (op->material & M_PAPER \|\| op->material & M_LEATHER \|\|
228	op->material & M_WOOD \|\| op->material & M_ORGANIC \|\|
229	op->material & M_CLOTH \|\| op->material & M_LIQUID)
230	destroy = 1;
231	if (op->material & M_IRON && rndm(1,5) == 1)
232	destroy = 1;
233	if (op->material & M_GLASS && rndm(1,2) == 1)
234	destroy = 1;
235	if ((op->material & M_STONE \|\| op->material & M_ADAMANT) &&
236	rndm(1,10) == 1)
237	destroy = 1;
238	if ((op->material & M_SOFT_METAL \|\| op->material & M_BONE) &&
239	rndm(1,3) == 1)
240	destroy = 1;
241	if (op->material & M_ICE && MAP_TEMP(m) > 32)
242	destroy = 1;
243	}
244	/* adjust overall chance below */
245	if (destroy && rndm(0, 1)) {
246	remove_ob(op);
247	free_object(op);
248	}
249	}	205	}
		206
		207	return total;
250	}	208	}
251		209
252	/* convert materialname to materialtype_t */	210	/* convert materialname to materialtype_t */
253		211
254	materialtype_t name_to_material(const char name)	212	materialtype_t *
		213	name_to_material (const shstr &name)
255	{	214	{
256	materialtype_t mt, nmt;	215	for (materialtype_t *mt = materialt; mt && mt->next; mt = mt->next)
257		216	if (name == mt->name)
258	mt = NULL;
259	for (nmt = materialt; nmt != NULL && nmt->next != NULL; nmt=nmt->next) {
260	if (strcmp(name, nmt->name) == 0) {
261	mt = nmt;
262	break;
263	}
264	}
265	return mt;	217	return mt;
		218
		219	return 0;
266	}	220	}
267		221
268	/* when doing transmutation of objects, we have to recheck the resistances,	222	/* when doing transmutation of objects, we have to recheck the resistances,
269	* as some that did not apply previously, may apply now.	223	* as some that did not apply previously, may apply now.
270	*/	224	*/
271		225	void
272	void transmute_materialname(object op, const object change)	226	transmute_materialname (object op, const object change)
273	{	227	{
274	materialtype_t *mt;	228	materialtype_t *mt;
275	int j;	229	int j;
276		230
277	if (op->materialname == NULL)	231	if (op->materialname == NULL)
278	return;	232	return;
279		233
280	if (change->materialname != NULL &&	234	if (change->materialname != NULL && strcmp (op->materialname, change->materialname))
281	strcmp(op->materialname, change->materialname))	235	return;
282	return;
283		236
284	if (!IS_ARMOR(op))	237	if (!op->is_armor ())
285	return;	238	return;
286		239
287	mt = name_to_material(op->materialname);	240	mt = name_to_material (op->materialname);
288	if (!mt) {	241	if (!mt)
		242	{
289	LOG(llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", op->arch->name, op->name, op->materialname);	243	LOG (llevError, "archetype '%s>%s' uses nonexistent material '%s'\n", &op->arch->archname, &op->name, &op->materialname);
290	return;	244	return;
291	}	245	}
292		246
293	for (j=0; j < NROFATTACKS; j++)	247	for (j = 0; j < NROFATTACKS; j++)
294	if (op->resist[j] == 0 && change->resist[j] != 0) {	248	if (op->resist[j] == 0 && change->resist[j] != 0)
		249	{
295	op->resist[j] += mt->mod[j];	250	op->resist[j] += mt->mod[j];
296	if (op->resist[j] > 100)	251	if (op->resist[j] > 100)
297	op->resist[j] = 100;	252	op->resist[j] = 100;
298	if (op->resist[j] < -100)	253	if (op->resist[j] < -100)
299	op->resist[j] = -100;	254	op->resist[j] = -100;
300	}	255	}
301	}	256	}
302		257
303	/* set the materialname and type for an item */	258	/* set the materialname and type for an item */
		259	void
304	void set_materialname(object op, int difficulty, materialtype_t nmt)	260	set_materialname (object op, int difficulty, materialtype_t nmt)
305	{	261	{
306	materialtype_t mt, lmt;	262	materialtype_t mt, lmt;
307	int j;
308		263
309	if (op->materialname != NULL)	264	if (op->materialname != NULL)
310	return;	265	return;
311		266
312
313
314	if (nmt == NULL) {	267	if (nmt == NULL)
		268	{
315	lmt = NULL;	269	lmt = NULL;
316	#ifndef NEW_MATERIAL_CODE	270
317	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {	271	for (mt = materialt; mt && mt->next; mt = mt->next)
318	if (op->material & mt->material) {
319	lmt = mt;
320	break;
321	}
322	}
323
324	#else
325	for (mt = materialt; mt != NULL && mt->next != NULL; mt=mt->next) {
326	if (op->material & mt->material && rndm(1, 100) <= mt->chance &&	272	if (op->materials & mt->material && rndm (1, 100) <= mt->chance &&
327	difficulty >= mt->difficulty &&	273	difficulty >= mt->difficulty && (op->magic >= mt->magic \|\| mt->magic == 0))
328	(op->magic >= mt->magic \|\| mt->magic == 0)) {	274	{
329	lmt = mt;	275	lmt = mt;
330	if (!(IS_WEAPON(op) \|\| IS_ARMOR(op)))	276	if (!(op->is_weapon () \|\| op->is_armor ()))
331	break;	277	break;
		278	}
332	}	279	}
333	}	280	else
334	#endif
335	} else {
336	lmt = nmt;	281	lmt = nmt;
337	}
338		282
339	if (lmt != NULL) {	283	if (lmt != NULL)
340	#ifndef NEW_MATERIAL_CODE	284	{
341	op->materialname = add_string(lmt->name);	285	if (op->stats.dam && op->is_weapon ())
342	return;	286	{
343	#else
344
345	if (op->stats.dam && IS_WEAPON(op)) {
346	op->stats.dam += lmt->damage;	287	op->stats.dam += lmt->damage;
347	if (op->stats.dam < 1)	288	if (op->stats.dam < 1)
348	op->stats.dam = 1;	289	op->stats.dam = 1;
349	}	290	}
		291
350	if (op->stats.sp && op->type == BOW)	292	if (op->stats.sp && op->type == BOW)
351	op->stats.sp += lmt->sp;	293	op->stats.sp += lmt->sp;
352	if (op->stats.wc && IS_WEAPON(op))	294	if (op->stats.wc && op->is_weapon ())
353	op->stats.wc += lmt->wc;	295	op->stats.wc += lmt->wc;
354	if (IS_ARMOR(op)) {	296	if (op->is_armor ())
		297	{
355	if (op->stats.ac)	298	if (op->stats.ac)
356	op->stats.ac += lmt->ac;	299	op->stats.ac += lmt->ac;
		300
357	for (j=0; j < NROFATTACKS; j++)	301	for (int j = 0; j < NROFATTACKS; j++)
358	if (op->resist[j] != 0) {	302	if (op->resist[j] != 0)
		303	{
359	op->resist[j] += lmt->mod[j];	304	op->resist[j] += lmt->mod[j];
360	if (op->resist[j] > 100)	305	if (op->resist[j] > 100)
361	op->resist[j] = 100;	306	op->resist[j] = 100;
362	if (op->resist[j] < -100)	307	if (op->resist[j] < -100)
363	op->resist[j] = -100;	308	op->resist[j] = -100;
364	}	309	}
365	}	310	}
		311
366	op->materialname = add_string(lmt->name);	312	op->materialname = lmt->name;
367	/* dont make it unstackable if it doesn't need to be */	313	/* dont make it unstackable if it doesn't need to be */
368	if (IS_WEAPON(op) \|\| IS_ARMOR(op)) {	314	if (op->is_weapon () \|\| op->is_armor ())
		315	{
369	op->weight = (op->weight * lmt->weight)/100;	316	op->weight = (op->weight * lmt->weight) / 100;
370	op->value = (op->value * lmt->value)/100;	317	op->value = (op->value * lmt->value) / 100;
371	}	318	}
372	#endif
373	}	319	}
374	}	320	}
375		321
376	/*	322	/*
377	* Strip out the media tags from a String.	323	* Strip out the media tags from a String.
378	* Warning the input string will contain the result string	324	* Warning the input string will contain the result string
379	*/	325	*/
		326	void
380	void strip_media_tag(char *message){	327	strip_media_tag (char *message)
		328	{
381	int in_tag=0;	329	int in_tag = 0;
382	char* dest;	330	char *dest;
383	char* src;	331	char *src;
		332
384	src=dest=message;	333	src = dest = message;
385	while (*src!='\0'){	334	while (*src != '\0')
		335	{
386	if (*src=='['){	336	if (*src == '[')
		337	{
387	in_tag=1;	338	in_tag = 1;
		339	}
388	} else if (in_tag && (*src==']'))	340	else if (in_tag && (*src == ']'))
389	in_tag=0;	341	in_tag = 0;
390	else if (!in_tag){	342	else if (!in_tag)
		343	{
391	dest=src;	344	dest = src;
392	dest++;	345	dest++;
393	}	346	}
394	src++;	347	src++;
395	}	348	}
396	*dest='\0';	349	*dest = '\0';
397	}	350	}
398		351
		352	const char *
399	const char* strrstr(const char* haystack, const char* needle){	353	strrstr (const char haystack, const char needle)
		354	{
400	const char* lastneedle;	355	const char *lastneedle;
		356
401	lastneedle=NULL;	357	lastneedle = NULL;
402	while((haystack=strstr(haystack,needle))!=NULL){	358	while ((haystack = strstr (haystack, needle)) != NULL)
		359	{
403	lastneedle=haystack;	360	lastneedle = haystack;
404	haystack++;	361	haystack++;
405	}	362	}
406	return lastneedle;	363	return lastneedle;
407		364
408	}	365	}
		366
409	#define EOL_SIZE (sizeof("\n")-1)	367	#define EOL_SIZE (sizeof("\n")-1)
		368	void
410	void strip_endline(char* buf){	369	strip_endline (char *buf)
		370	{
411	if (strlen(buf)<sizeof("\n")){	371	if (strlen (buf) < sizeof ("\n"))
		372	{
412	return;	373	return;
413	}	374	}
414	if (!strcmp(buf+strlen(buf)-EOL_SIZE,"\n"))	375	if (!strcmp (buf + strlen (buf) - EOL_SIZE, "\n"))
415	buf[strlen(buf)-EOL_SIZE]='\0';	376	buf[strlen (buf) - EOL_SIZE] = '\0';
416	}	377	}
417		378
418	/**	379	/**
419	* Replace in string src all occurrences of key by replacement. The resulting	380	* Replace in string src all occurrences of key by replacement. The resulting
420	* string is put into result; at most resultsize characters (including the	381	* string is put into result; at most resultsize characters (including the
421	* terminating null character) will be written to result.	382	* terminating null character) will be written to result.
422	*/	383	*/
		384	void
423	void replace(const char src, const char key, const char replacement, char result, size_t resultsize)	385	replace (const char src, const char key, const char replacement, char result, size_t resultsize)
424	{	386	{
425	size_t resultlen;	387	size_t resultlen;
426	size_t keylen;	388	size_t keylen;
427		389
428	/* special case to prevent infinite loop if key==replacement=="" */	390	/* special case to prevent infinite loop if key==replacement=="" */
429	if(strcmp(key, replacement) == 0)	391	if (strcmp (key, replacement) == 0)
430	{	392	{
431	snprintf(result, resultsize, "%s", src);	393	snprintf (result, resultsize, "%s", src);
432	return;	394	return;
433	}	395	}
434		396
435	keylen = strlen(key);	397	keylen = strlen (key);
436		398
437	resultlen = 0;	399	resultlen = 0;
438	while(*src != '\0' && resultlen+1 < resultsize)	400	while (*src != '\0' && resultlen + 1 < resultsize)
439	{	401	{
440	if(strncmp(src, key, keylen) == 0)	402	if (strncmp (src, key, keylen) == 0)
441	{	403	{
442	snprintf(result+resultlen, resultsize-resultlen, "%s", replacement);	404	snprintf (result + resultlen, resultsize - resultlen, "%s", replacement);
443	resultlen += strlen(result+resultlen);	405	resultlen += strlen (result + resultlen);
444	src += keylen;	406	src += keylen;
445	}	407	}
446	else	408	else
447	{	409	{
448	result[resultlen++] = *src++;	410	result[resultlen++] = *src++;
449	}	411	}
450	}	412	}
451	result[resultlen] = '\0';	413	result[resultlen] = '\0';
452	}	414	}
453		415
454	/**	416	/**
455	* Taking a string as an argument, mutate it into a string that looks like a list.	417	* Taking a string as an argument, mutate it into a string that looks like a list.
456	* a 'list' for the purposes here, is a string of items, seperated by commas, except	418	* a 'list' for the purposes here, is a string of items, seperated by commas, except
457	* for the last entry, which has an 'and' before it, and a full stop (period) after it.	419	* for the last entry, which has an 'and' before it, and a full stop (period) after it.
458	* This function will also strip all trailing non alphanumeric characters.	420	* This function will also strip all trailing non alphanumeric characters.
459	* It does not insert an oxford comma.	421	* It does not insert an oxford comma.
460	*/	422	*/
461		423	void
462	void make_list_like(char *input) {	424	make_list_like (char *input)
		425	{
463	char *p, tmp[MAX_BUF];	426	char *p, tmp[MAX_BUF];
464	int i;	427	int i;
		428
465	if (!input \|\| strlen(input) > MAX_BUF-5) return;	429	if (!input \|\| strlen (input) > MAX_BUF - 5)
466	/* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */
467
468	strncpy(tmp, input, MAX_BUF-5);
469	/trim all trailing commas, spaces etc./
470	for (i=strlen(tmp); !isalnum(tmp[i]) && i >= 0; i--)
471	tmp[i]='\0';
472	strcat(tmp, ".");
473
474	p=strrchr(tmp, ',');
475	if (p) {
476	*p='\0';
477	strcpy(input, tmp);
478	p++;
479	strcat(input, " and");
480	strcat(input, p);
481	}
482	else strcpy(input, tmp);
483	return;	430	return;
		431	/* bad stuff would happen if we continued here, the -5 is to make space for ' and ' */
		432
		433	strncpy (tmp, input, MAX_BUF - 5);
		434	/trim all trailing commas, spaces etc. /
		435	for (i = strlen (tmp); !isalnum (tmp[i]) && i >= 0; i--)
		436	tmp[i] = '\0';
		437
		438	strcat (tmp, ".");
		439
		440	p = strrchr (tmp, ',');
		441	if (p)
		442	{
		443	*p = '\0';
		444	strcpy (input, tmp);
		445	p++;
		446	strcat (input, " and");
		447	strcat (input, p);
		448	}
		449	else
		450	strcpy (input, tmp);
		451
		452	return;
484	}	453	}
		454
		455	/////////////////////////////////////////////////////////////////////////////
		456
		457	void
		458	fork_abort (const char *msg)
		459	{
		460	if (!fork ())
		461	{
		462	signal (SIGABRT, SIG_DFL);
		463	// try to put corefiles into a subdirectory, if existing, to allow
		464	// an administrator to reduce the I/O load.
		465	chdir ("cores");
		466	abort ();
		467	}
		468
		469	LOG (llevError, "fork abort: %s\n", msg);
		470	}
		471
		472	void *salloc_ (int n) throw (std::bad_alloc)
		473	{
		474	#ifdef PREFER_MALLOC
		475	void *ptr = malloc (n);
		476	#else
		477	slice_alloc += n;
		478	void *ptr = g_slice_alloc (n);
		479	#endif
		480
		481	if (!ptr)
		482	throw std::bad_alloc ();
		483
		484	return ptr;
		485	}
		486
		487	void salloc_ (int n, void src) throw (std::bad_alloc)
		488	{
		489	void *ptr = salloc_ (n);
		490
		491	if (src)
		492	memcpy (ptr, src, n);
		493	else
		494	memset (ptr, 0, n);
		495
		496	return ptr;
		497	}
		498
		499	/******************************************************************************/
		500
		501	#ifdef DEBUG_SALLOC
		502
		503	#define MAGIC 0xa1b2c35543deadL
		504
		505	void *g_slice_alloc (unsigned long size)
		506	{
		507	unsigned long p = (unsigned long ) (g_slice_alloc)(size + sizeof (unsigned long));
		508	*p++ = size ^ MAGIC;
		509	//fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D
		510	return (void *)p;
		511	}
		512
		513	void *g_slice_alloc0 (unsigned long size)
		514	{
		515	return memset (g_slice_alloc (size), 0, size);
		516	}
		517
		518	void g_slice_free1 (unsigned long size, void *ptr)
		519	{
		520	if (expect_true (ptr))
		521	{
		522	//fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D
		523	unsigned long p = (unsigned long )ptr;
		524	unsigned long s = *--p ^ MAGIC;
		525
		526	if ((*p ^ MAGIC) != size)
		527	LOG (logBacktrace \| llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s);
		528
		529	*p = MAGIC;
		530
		531	(g_slice_free1)(s + sizeof (unsigned long), p);
		532	}
		533	}
		534
		535	#endif
		536
		537	/******************************************************************************/
		538
		539	void assign (char dst, const char src, int maxlen)
		540	{
		541	if (!src)
		542	src = "";
		543
		544	int len = strlen (src);
		545
		546	if (len >= maxlen - 1)
		547	{
		548	if (maxlen <= 4)
		549	{
		550	memset (dst, '.', maxlen - 1);
		551	dst [maxlen - 1] = 0;
		552	}
		553	else
		554	{
		555	memcpy (dst, src, maxlen - 4);
		556	memcpy (dst + maxlen - 4, "...", 4);
		557	}
		558	}
		559	else
		560	memcpy (dst, src, len + 1);
		561	}
		562
		563	const char *
		564	format (const char *format, ...)
		565	{
		566	static dynbuf_text buf;
		567
		568	buf.clear ();
		569
		570	va_list ap;
		571	va_start (ap, format);
		572	buf.vprintf (format, ap);
		573	va_end (ap);
		574
		575	return buf;
		576	}
		577
		578	tstamp now ()
		579	{
		580	struct timeval tv;
		581
		582	gettimeofday (&tv, 0);
		583	return tstamp (tv.tv_sec) + tstamp (tv.tv_usec) * tstamp (1e-6);
		584	}
		585
		586	int
		587	similar_direction (int a, int b)
		588	{
		589	if (!a \|\| !b)
		590	return 0;
		591
		592	int diff = (b - a) & 7;
		593	return diff <= 1 \|\| diff >= 7;
		594	}
		595
		596	/* crc32 0xdebb20e3 table and supplementary functions. */
		597	extern const uint32_t crc_32_tab[256] =
		598	{
		599	0x00000000UL, 0x77073096UL, 0xee0e612cUL, 0x990951baUL, 0x076dc419UL,
		600	0x706af48fUL, 0xe963a535UL, 0x9e6495a3UL, 0x0edb8832UL, 0x79dcb8a4UL,
		601	0xe0d5e91eUL, 0x97d2d988UL, 0x09b64c2bUL, 0x7eb17cbdUL, 0xe7b82d07UL,
		602	0x90bf1d91UL, 0x1db71064UL, 0x6ab020f2UL, 0xf3b97148UL, 0x84be41deUL,
		603	0x1adad47dUL, 0x6ddde4ebUL, 0xf4d4b551UL, 0x83d385c7UL, 0x136c9856UL,
		604	0x646ba8c0UL, 0xfd62f97aUL, 0x8a65c9ecUL, 0x14015c4fUL, 0x63066cd9UL,
		605	0xfa0f3d63UL, 0x8d080df5UL, 0x3b6e20c8UL, 0x4c69105eUL, 0xd56041e4UL,
		606	0xa2677172UL, 0x3c03e4d1UL, 0x4b04d447UL, 0xd20d85fdUL, 0xa50ab56bUL,
		607	0x35b5a8faUL, 0x42b2986cUL, 0xdbbbc9d6UL, 0xacbcf940UL, 0x32d86ce3UL,
		608	0x45df5c75UL, 0xdcd60dcfUL, 0xabd13d59UL, 0x26d930acUL, 0x51de003aUL,
		609	0xc8d75180UL, 0xbfd06116UL, 0x21b4f4b5UL, 0x56b3c423UL, 0xcfba9599UL,
		610	0xb8bda50fUL, 0x2802b89eUL, 0x5f058808UL, 0xc60cd9b2UL, 0xb10be924UL,
		611	0x2f6f7c87UL, 0x58684c11UL, 0xc1611dabUL, 0xb6662d3dUL, 0x76dc4190UL,
		612	0x01db7106UL, 0x98d220bcUL, 0xefd5102aUL, 0x71b18589UL, 0x06b6b51fUL,
		613	0x9fbfe4a5UL, 0xe8b8d433UL, 0x7807c9a2UL, 0x0f00f934UL, 0x9609a88eUL,
		614	0xe10e9818UL, 0x7f6a0dbbUL, 0x086d3d2dUL, 0x91646c97UL, 0xe6635c01UL,
		615	0x6b6b51f4UL, 0x1c6c6162UL, 0x856530d8UL, 0xf262004eUL, 0x6c0695edUL,
		616	0x1b01a57bUL, 0x8208f4c1UL, 0xf50fc457UL, 0x65b0d9c6UL, 0x12b7e950UL,
		617	0x8bbeb8eaUL, 0xfcb9887cUL, 0x62dd1ddfUL, 0x15da2d49UL, 0x8cd37cf3UL,
		618	0xfbd44c65UL, 0x4db26158UL, 0x3ab551ceUL, 0xa3bc0074UL, 0xd4bb30e2UL,
		619	0x4adfa541UL, 0x3dd895d7UL, 0xa4d1c46dUL, 0xd3d6f4fbUL, 0x4369e96aUL,
		620	0x346ed9fcUL, 0xad678846UL, 0xda60b8d0UL, 0x44042d73UL, 0x33031de5UL,
		621	0xaa0a4c5fUL, 0xdd0d7cc9UL, 0x5005713cUL, 0x270241aaUL, 0xbe0b1010UL,
		622	0xc90c2086UL, 0x5768b525UL, 0x206f85b3UL, 0xb966d409UL, 0xce61e49fUL,
		623	0x5edef90eUL, 0x29d9c998UL, 0xb0d09822UL, 0xc7d7a8b4UL, 0x59b33d17UL,
		624	0x2eb40d81UL, 0xb7bd5c3bUL, 0xc0ba6cadUL, 0xedb88320UL, 0x9abfb3b6UL,
		625	0x03b6e20cUL, 0x74b1d29aUL, 0xead54739UL, 0x9dd277afUL, 0x04db2615UL,
		626	0x73dc1683UL, 0xe3630b12UL, 0x94643b84UL, 0x0d6d6a3eUL, 0x7a6a5aa8UL,
		627	0xe40ecf0bUL, 0x9309ff9dUL, 0x0a00ae27UL, 0x7d079eb1UL, 0xf00f9344UL,
		628	0x8708a3d2UL, 0x1e01f268UL, 0x6906c2feUL, 0xf762575dUL, 0x806567cbUL,
		629	0x196c3671UL, 0x6e6b06e7UL, 0xfed41b76UL, 0x89d32be0UL, 0x10da7a5aUL,
		630	0x67dd4accUL, 0xf9b9df6fUL, 0x8ebeeff9UL, 0x17b7be43UL, 0x60b08ed5UL,
		631	0xd6d6a3e8UL, 0xa1d1937eUL, 0x38d8c2c4UL, 0x4fdff252UL, 0xd1bb67f1UL,
		632	0xa6bc5767UL, 0x3fb506ddUL, 0x48b2364bUL, 0xd80d2bdaUL, 0xaf0a1b4cUL,
		633	0x36034af6UL, 0x41047a60UL, 0xdf60efc3UL, 0xa867df55UL, 0x316e8eefUL,
		634	0x4669be79UL, 0xcb61b38cUL, 0xbc66831aUL, 0x256fd2a0UL, 0x5268e236UL,
		635	0xcc0c7795UL, 0xbb0b4703UL, 0x220216b9UL, 0x5505262fUL, 0xc5ba3bbeUL,
		636	0xb2bd0b28UL, 0x2bb45a92UL, 0x5cb36a04UL, 0xc2d7ffa7UL, 0xb5d0cf31UL,
		637	0x2cd99e8bUL, 0x5bdeae1dUL, 0x9b64c2b0UL, 0xec63f226UL, 0x756aa39cUL,
		638	0x026d930aUL, 0x9c0906a9UL, 0xeb0e363fUL, 0x72076785UL, 0x05005713UL,
		639	0x95bf4a82UL, 0xe2b87a14UL, 0x7bb12baeUL, 0x0cb61b38UL, 0x92d28e9bUL,
		640	0xe5d5be0dUL, 0x7cdcefb7UL, 0x0bdbdf21UL, 0x86d3d2d4UL, 0xf1d4e242UL,
		641	0x68ddb3f8UL, 0x1fda836eUL, 0x81be16cdUL, 0xf6b9265bUL, 0x6fb077e1UL,
		642	0x18b74777UL, 0x88085ae6UL, 0xff0f6a70UL, 0x66063bcaUL, 0x11010b5cUL,
		643	0x8f659effUL, 0xf862ae69UL, 0x616bffd3UL, 0x166ccf45UL, 0xa00ae278UL,
		644	0xd70dd2eeUL, 0x4e048354UL, 0x3903b3c2UL, 0xa7672661UL, 0xd06016f7UL,
		645	0x4969474dUL, 0x3e6e77dbUL, 0xaed16a4aUL, 0xd9d65adcUL, 0x40df0b66UL,
		646	0x37d83bf0UL, 0xa9bcae53UL, 0xdebb9ec5UL, 0x47b2cf7fUL, 0x30b5ffe9UL,
		647	0xbdbdf21cUL, 0xcabac28aUL, 0x53b39330UL, 0x24b4a3a6UL, 0xbad03605UL,
		648	0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL,
		649	0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL,
		650	0x2d02ef8dL
		651	};
		652

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Comparing deliantra/server/common/utils.C (file contents): Revision 1.1 by elmex, Sun Aug 13 17:16:01 2006 UTC vs. Revision 1.69 by root, Tue Jan 22 15:53:01 2008 UTC

Diff Legend

Comparing deliantra/server/common/utils.C (file contents):
Revision 1.1 by elmex, Sun Aug 13 17:16:01 2006 UTC vs.
Revision 1.69 by root, Tue Jan 22 15:53:01 2008 UTC