1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Roguelike Realtime MORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
3 | * |
3 | * |
4 | * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team |
4 | * Copyright (©) 2005,2006,2007,2008 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
7 | * |
7 | * |
8 | * Crossfire TRT is free software: you can redistribute it and/or modify |
8 | * Deliantra is free software: you can redistribute it and/or modify |
9 | * 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 |
10 | * the Free Software Foundation, either version 3 of the License, or |
10 | * the Free Software Foundation, either version 3 of the License, or |
11 | * (at your option) any later version. |
11 | * (at your 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, |
… | |
… | |
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 GNU General Public License |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
20 | * |
20 | * |
21 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
21 | * The authors can be reached via e-mail to <support@deliantra.net> |
22 | */ |
22 | */ |
23 | |
23 | |
24 | /* |
24 | /* |
25 | * General convenience functions for crossfire. |
25 | * General convenience functions for crossfire. |
26 | */ |
26 | */ |
… | |
… | |
31 | #include <sys/time.h> |
31 | #include <sys/time.h> |
32 | #include <time.h> |
32 | #include <time.h> |
33 | #include <signal.h> |
33 | #include <signal.h> |
34 | |
34 | |
35 | #include <global.h> |
35 | #include <global.h> |
36 | #include <funcpoint.h> |
|
|
37 | #include <material.h> |
36 | #include <material.h> |
38 | |
37 | |
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|
38 | #include <sys/time.h> |
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39 | #include <sys/resource.h> |
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40 | |
39 | #include <glib.h> |
41 | #include <glib.h> |
40 | |
42 | |
41 | rand_gen rndm; |
43 | refcnt_base::refcnt_t refcnt_dummy; |
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44 | ssize_t slice_alloc; |
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45 | rand_gen rndm, rmg_rndm; |
42 | |
46 | |
43 | void |
47 | void |
44 | tausworthe_random_generator::seed (uint32_t seed) |
48 | tausworthe_random_generator::seed (uint32_t seed) |
45 | { |
49 | { |
46 | state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U; |
50 | state [0] = seed * 69069U; if (state [0] < 2U) state [0] += 2U; |
47 | state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U; |
51 | state [1] = state [0] * 69069U; if (state [0] < 8U) state [0] += 8U; |
48 | state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U; |
52 | state [2] = state [1] * 69069U; if (state [0] < 16U) state [0] += 16U; |
49 | state [3] = state [2] * 69069U; if (state [0] < 128) state [0] += 128U; |
53 | state [3] = state [2] * 69069U; if (state [0] < 128U) state [0] += 128U; |
50 | |
54 | |
51 | for (int i = 11; --i; ) |
55 | for (int i = 11; --i; ) |
52 | operator ()(); |
56 | operator ()(); |
53 | } |
57 | } |
54 | |
58 | |
… | |
… | |
92 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
96 | * not the recipient (ie, the poor slob getting hit). [garbled 20010916] |
93 | */ |
97 | */ |
94 | int |
98 | int |
95 | random_roll (int r_min, int r_max, const object *op, int goodbad) |
99 | random_roll (int r_min, int r_max, const object *op, int goodbad) |
96 | { |
100 | { |
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101 | r_max = max (r_min, r_max); |
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102 | |
97 | int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ |
103 | int base = r_max - r_min > 1 ? 20 : 50; /* d2 and d3 are corner cases */ |
98 | |
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99 | if (r_max < r_min) |
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100 | { |
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101 | LOG (llevError | logBacktrace, "Calling random_roll with min=%d max=%d\n", r_min, r_max); |
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102 | return r_min; |
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103 | } |
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104 | |
104 | |
105 | if (op->type == PLAYER) |
105 | if (op->type == PLAYER) |
106 | { |
106 | { |
107 | int luck = op->stats.luck; |
107 | int luck = op->stats.luck; |
108 | |
108 | |
… | |
… | |
118 | /* |
118 | /* |
119 | * This is a 64 bit version of random_roll above. This is needed |
119 | * This is a 64 bit version of random_roll above. This is needed |
120 | * for exp loss calculations for players changing religions. |
120 | * for exp loss calculations for players changing religions. |
121 | */ |
121 | */ |
122 | sint64 |
122 | sint64 |
123 | random_roll64 (sint64 min, sint64 max, const object *op, int goodbad) |
123 | random_roll64 (sint64 r_min, sint64 r_max, const object *op, int goodbad) |
124 | { |
124 | { |
125 | sint64 omin = min; |
125 | sint64 omin = r_min; |
126 | sint64 diff = max - min + 1; |
126 | sint64 range = max (0, r_max - r_min + 1); |
127 | int base = diff > 2 ? 20 : 50; /* d2 and d3 are corner cases */ |
127 | int base = range > 2 ? 20 : 50; /* d2 and d3 are corner cases */ |
128 | |
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129 | if (diff < 0) |
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130 | { |
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131 | LOG (llevError | logBacktrace, "Calling random_roll64 with min=%" PRId64 " max=%" PRId64 "\n", min, max); |
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132 | return (min); /* avoids a float exception */ |
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133 | } |
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134 | |
128 | |
135 | /* |
129 | /* |
136 | * Make a call to get two 32 bit unsigned random numbers, and just to |
130 | * Make a call to get two 32 bit unsigned random numbers, and just to |
137 | * a little bitshifting. |
131 | * a little bitshifting. |
138 | */ |
132 | */ |
139 | sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31); |
133 | sint64 ran = (sint64) rndm.next () ^ ((sint64) rndm.next () << 31); |
140 | |
134 | |
141 | if (op->type != PLAYER) |
135 | if (op->type != PLAYER) |
142 | return ((ran % diff) + min); |
136 | return ((ran % range) + r_min); |
143 | |
137 | |
144 | int luck = op->stats.luck; |
138 | int luck = op->stats.luck; |
145 | |
139 | |
146 | if (rndm (base) < MIN (10, abs (luck))) |
140 | if (rndm (base) < min (10, abs (luck))) |
147 | { |
141 | { |
148 | /* we have a winner */ |
142 | /* we have a winner */ |
149 | ((luck > 0) ? (luck = 1) : (luck = -1)); |
143 | ((luck > 0) ? (luck = 1) : (luck = -1)); |
150 | diff -= luck; |
144 | range -= luck; |
151 | if (diff < 1) |
145 | if (range < 1) |
152 | return (omin); /*check again */ |
146 | return (omin); /*check again */ |
153 | |
147 | |
154 | ((goodbad) ? (min += luck) : (diff)); |
148 | ((goodbad) ? (r_min += luck) : (range)); |
155 | |
149 | |
156 | return (MAX (omin, MIN (max, (ran % diff) + min))); |
150 | return (max (omin, min (r_max, (ran % range) + r_min))); |
157 | } |
151 | } |
158 | |
152 | |
159 | return ran % diff + min; |
153 | return ran % range + r_min; |
160 | } |
154 | } |
161 | |
155 | |
162 | /* |
156 | /* |
163 | * Roll a number of dice (2d3, 4d6). Uses op to determine luck, |
157 | * Roll a number of dice (2d3, 4d6). Uses op to determine luck, |
164 | * If goodbad is non-zero, luck increases the roll, if zero, it decreases. |
158 | * If goodbad is non-zero, luck increases the roll, if zero, it decreases. |
… | |
… | |
218 | } |
212 | } |
219 | |
213 | |
220 | /* when doing transmutation of objects, we have to recheck the resistances, |
214 | /* when doing transmutation of objects, we have to recheck the resistances, |
221 | * as some that did not apply previously, may apply now. |
215 | * as some that did not apply previously, may apply now. |
222 | */ |
216 | */ |
223 | |
|
|
224 | void |
217 | void |
225 | transmute_materialname (object *op, const object *change) |
218 | transmute_materialname (object *op, const object *change) |
226 | { |
219 | { |
227 | materialtype_t *mt; |
220 | materialtype_t *mt; |
228 | int j; |
221 | int j; |
… | |
… | |
417 | * a 'list' for the purposes here, is a string of items, seperated by commas, except |
410 | * a 'list' for the purposes here, is a string of items, seperated by commas, except |
418 | * for the last entry, which has an 'and' before it, and a full stop (period) after it. |
411 | * for the last entry, which has an 'and' before it, and a full stop (period) after it. |
419 | * This function will also strip all trailing non alphanumeric characters. |
412 | * This function will also strip all trailing non alphanumeric characters. |
420 | * It does not insert an oxford comma. |
413 | * It does not insert an oxford comma. |
421 | */ |
414 | */ |
422 | |
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|
423 | void |
415 | void |
424 | make_list_like (char *input) |
416 | make_list_like (char *input) |
425 | { |
417 | { |
426 | char *p, tmp[MAX_BUF]; |
418 | char *p, tmp[MAX_BUF]; |
427 | int i; |
419 | int i; |
… | |
… | |
457 | void |
449 | void |
458 | fork_abort (const char *msg) |
450 | fork_abort (const char *msg) |
459 | { |
451 | { |
460 | if (!fork ()) |
452 | if (!fork ()) |
461 | { |
453 | { |
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454 | fprintf (stderr, "background fork_abort in progress, remove me when debugged.\n");//D |
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455 | |
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456 | signal (SIGINT , SIG_IGN); |
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457 | signal (SIGTERM, SIG_IGN); |
462 | signal (SIGABRT, SIG_DFL); |
458 | signal (SIGABRT, SIG_IGN); |
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459 | |
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460 | signal (SIGSEGV, SIG_DFL); |
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461 | signal (SIGBUS , SIG_DFL); |
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462 | signal (SIGILL , SIG_DFL); |
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463 | signal (SIGTRAP, SIG_DFL); |
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464 | |
463 | // try to put corefiles into a subdirectory, if existing, to allow |
465 | // try to put corefiles into a subdirectory, if existing, to allow |
464 | // an administrator to reduce the I/O load. |
466 | // an administrator to reduce the I/O load. |
465 | chdir ("cores"); |
467 | chdir ("cores"); |
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468 | |
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469 | // try to detach us from as many external dependencies as possible |
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470 | // as coredumping can take time by closing all fd's. |
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471 | { |
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472 | struct rlimit lim; |
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473 | |
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474 | if (getrlimit (RLIMIT_NOFILE, &lim)) |
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475 | lim.rlim_cur = 1024; |
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476 | |
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477 | for (int i = 0; i < lim.rlim_cur; ++i) |
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478 | close (i); |
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479 | } |
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480 | |
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481 | { |
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482 | sigset_t empty; |
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483 | sigemptyset (&empty); |
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484 | sigprocmask (SIG_SETMASK, &empty, 0); |
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485 | } |
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486 | |
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487 | // try to coredump with SIGTRAP |
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488 | kill (getpid (), SIGTRAP); |
466 | abort (); |
489 | abort (); |
467 | } |
490 | } |
468 | |
491 | |
469 | LOG (llevError, "fork abort: %s\n", msg); |
492 | LOG (llevError, "fork abort: %s\n", msg); |
470 | } |
493 | } |
471 | |
494 | |
472 | void *salloc_ (int n) throw (std::bad_alloc) |
495 | void *salloc_ (int n) throw (std::bad_alloc) |
473 | { |
496 | { |
474 | #ifdef PREFER_MALLOC |
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475 | void *ptr = malloc (n); |
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476 | #else |
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477 | void *ptr = g_slice_alloc (n); |
497 | void *ptr = g_slice_alloc (n); |
478 | #endif |
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479 | |
498 | |
480 | if (!ptr) |
499 | if (!ptr) |
481 | throw std::bad_alloc (); |
500 | throw std::bad_alloc (); |
482 | |
501 | |
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502 | slice_alloc += n; |
483 | return ptr; |
503 | return ptr; |
484 | } |
504 | } |
485 | |
505 | |
486 | void *salloc_ (int n, void *src) throw (std::bad_alloc) |
506 | void *salloc_ (int n, void *src) throw (std::bad_alloc) |
487 | { |
507 | { |
… | |
… | |
493 | memset (ptr, 0, n); |
513 | memset (ptr, 0, n); |
494 | |
514 | |
495 | return ptr; |
515 | return ptr; |
496 | } |
516 | } |
497 | |
517 | |
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518 | /******************************************************************************/ |
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519 | |
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520 | #if DEBUG_SALLOC |
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521 | |
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522 | #define MAGIC 0xa1b2c35543deadLL |
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523 | |
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524 | void *g_slice_alloc (unsigned long size) |
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525 | { |
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526 | unsigned long *p = (unsigned long *) (g_slice_alloc)(size + sizeof (unsigned long)); |
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527 | *p++ = size ^ MAGIC; |
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528 | //fprintf (stderr, "g_slice_alloc %ld %p\n", size, p);//D |
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529 | return (void *)p; |
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530 | } |
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531 | |
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532 | void *g_slice_alloc0 (unsigned long size) |
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533 | { |
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534 | return memset (g_slice_alloc (size), 0, size); |
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535 | } |
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536 | |
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537 | void g_slice_free1 (unsigned long size, void *ptr) |
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538 | { |
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539 | //fprintf (stderr, "g_slice_free %ld %p\n", size, ptr);//D |
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540 | if (expect_true (ptr)) |
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541 | { |
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542 | unsigned long *p = (unsigned long *)ptr; |
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543 | unsigned long s = *--p ^ MAGIC; |
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544 | |
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545 | if (size != (unsigned long)(*p ^ MAGIC)) |
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546 | { |
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547 | LOG (logBacktrace | llevError, "slice free size (%lx) doesn't match alloc size (%lx)\n", size, s); |
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548 | abort (); |
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549 | } |
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550 | |
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551 | *p = MAGIC; |
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552 | |
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553 | (g_slice_free1)(s + sizeof (unsigned long), p); |
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554 | } |
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555 | } |
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556 | |
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557 | #endif |
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558 | |
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559 | /******************************************************************************/ |
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560 | |
498 | void assign (char *dst, const char *src, int maxlen) |
561 | void assign (char *dst, const char *src, int maxlen) |
499 | { |
562 | { |
500 | if (!src) |
563 | if (!src) |
501 | src = ""; |
564 | src = ""; |
502 | |
565 | |
… | |
… | |
517 | } |
580 | } |
518 | else |
581 | else |
519 | memcpy (dst, src, len + 1); |
582 | memcpy (dst, src, len + 1); |
520 | } |
583 | } |
521 | |
584 | |
522 | const std::string |
585 | const char * |
523 | format (const char *format, ...) |
586 | format (const char *format, ...) |
524 | { |
587 | { |
525 | int len; |
588 | static dynbuf_text buf; |
526 | |
589 | |
527 | { |
590 | buf.clear (); |
528 | char buf[128]; |
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529 | |
591 | |
530 | va_list ap; |
592 | va_list ap; |
531 | va_start (ap, format); |
593 | va_start (ap, format); |
532 | len = vsnprintf (buf, sizeof (buf), format, ap); |
594 | buf.vprintf (format, ap); |
533 | va_end (ap); |
595 | va_end (ap); |
534 | |
596 | |
535 | assert (len >= 0); // shield againstz broken vsnprintf's |
|
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536 | |
|
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537 | // was our static buffer short enough? |
|
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538 | if (len < sizeof (buf)) |
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539 | return std::string (buf, len); |
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540 | } |
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541 | |
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542 | { |
|
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543 | // longer, try harder |
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544 | char *buf = salloc<char> (len + 1); |
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545 | |
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546 | va_list ap; |
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547 | va_start (ap, format); |
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548 | vsnprintf (buf, len + 1, format, ap); |
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549 | va_end (ap); |
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550 | |
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551 | const std::string s (buf, len); |
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552 | sfree<char> (buf, len + 1); |
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553 | |
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554 | return buf; |
597 | return buf; |
555 | } |
|
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556 | } |
598 | } |
557 | |
599 | |
558 | tstamp now () |
600 | tstamp now () |
559 | { |
601 | { |
560 | struct timeval tv; |
602 | struct timeval tv; |
… | |
… | |
628 | 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, |
670 | 0xcdd70693UL, 0x54de5729UL, 0x23d967bfUL, 0xb3667a2eUL, 0xc4614ab8UL, |
629 | 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, |
671 | 0x5d681b02UL, 0x2a6f2b94UL, 0xb40bbe37UL, 0xc30c8ea1UL, 0x5a05df1bUL, |
630 | 0x2d02ef8dL |
672 | 0x2d02ef8dL |
631 | }; |
673 | }; |
632 | |
674 | |
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675 | void thread::start (void *(*start_routine)(void *), void *arg) |
|
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676 | { |
|
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677 | pthread_attr_t attr; |
633 | |
678 | |
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679 | pthread_attr_init (&attr); |
|
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680 | pthread_attr_setdetachstate (&attr, PTHREAD_CREATE_DETACHED); |
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681 | pthread_attr_setstacksize (&attr, PTHREAD_STACK_MIN < sizeof (long) * 4096 |
|
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682 | ? sizeof (long) * 4096 : PTHREAD_STACK_MIN); |
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683 | #ifdef PTHREAD_SCOPE_PROCESS |
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684 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
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685 | #endif |
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686 | |
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687 | sigset_t fullsigset, oldsigset; |
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688 | sigfillset (&fullsigset); |
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689 | |
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690 | pthread_sigmask (SIG_SETMASK, &fullsigset, &oldsigset); |
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691 | |
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692 | if (pthread_create (&id, &attr, start_routine, arg)) |
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693 | cleanup ("unable to create a new thread"); |
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694 | |
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695 | pthread_sigmask (SIG_SETMASK, &oldsigset, 0); |
|
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696 | } |
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697 | |