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Comparing deliantra/server/common/shstr.C (file contents):
Revision 1.9 by root, Mon Sep 4 17:16:19 2006 UTC vs.
Revision 1.27 by root, Mon Oct 22 05:46:44 2007 UTC

1/*
2 * This file is part of Crossfire TRT, the Roguelike Realtime MORPG.
3 *
4 * Copyright (©) 2005,2006,2007 Marc Alexander Lehmann / Robin Redeker / the Crossfire TRT team
5 *
6 * Crossfire TRT is free software: you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation, either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program. If not, see <http://www.gnu.org/licenses/>.
18 *
19 * The authors can be reached via e-mail to <crossfire@schmorp.de>
20 */
21
1/* 22/*
2 * shstr.C 23 * shstr.C
3 */ 24 */
4 25
5#include <cstring> 26#include <cstring>
6#include <cstdlib> 27#include <cstdlib>
7 28#include <glib.h>
8#include <tr1/unordered_set> 29#include <tr1/unordered_set>
9 30
10#include "shstr.h"
11#include "util.h" 31#include "global.h"
12 32
33size_t shstr_alloc;
34
13typedef std::tr1::unordered_set<const char *, str_hash, str_equal> HT; 35typedef std::tr1::unordered_set <const char *, str_hash, str_equal, slice_allocator<const char *>, true> HT;
14 36
15static HT ht; 37static HT ht;
16 38
17static const char *makevec (const char *s) 39static const char *
40makevec (const char *s)
18{ 41{
19 int len = strlen (s); 42 int len = strlen (s);
20 43
44 shstr_alloc += sizeof (int) * 2 + len + 1;
21 const char *v = (const char *)(2 + (int *)malloc (sizeof (int) * 2 + len + 1)); 45 const char *v = (const char *) (2 + (int *)g_slice_alloc (sizeof (int) * 2 + len + 1));
22 46
23 shstr::length (v) = len; 47 shstr::length (v) = len;
24 shstr::refcnt (v) = 1; 48 shstr::refcnt (v) = 1;
25 49
26 memcpy ((char *)v, s, len + 1); 50 memcpy ((char *) v, s, len + 1);
27 51
28 return v; 52 return v;
29} 53}
30 54
55static const char *
56makenull ()
57{
31const char *shstr::null = makevec ("<nil>"); 58 const char *s = makevec ("(null)");
59 shstr::length (s) = 0;
60 return s;
61}
32 62
33// what weird misoptimisation is this again? 63const char *shstr::null = makenull ();
34const shstr undead_name ("undead");
35 64
36const char * 65const char *
37shstr::find (const char *s) 66shstr::find (const char *s)
38{ 67{
39 if (!s) 68 if (!s)
40 return s; 69 return s;
41 70
42 HT::iterator i = ht.find (s); 71 auto (i, ht.find (s));
43 72
44 return i != ht.end () 73 return i != ht.end ()? *i : 0;
45 ? *i
46 : 0;
47} 74}
48 75
49const char * 76const char *
50shstr::intern (const char *s) 77shstr::intern (const char *s)
51{ 78{
… …
68void 95void
69shstr::gc () 96shstr::gc ()
70{ 97{
71 static const char *curpos; 98 static const char *curpos;
72 99
73 HT::iterator i = curpos ? ht.find (curpos) : ht.begin (); 100 auto (i, curpos ? ht.find (curpos) : ht.begin ());
74 101
75 if (i == ht.end ()) 102 if (i == ht.end ())
76 i = ht.begin (); 103 i = ht.begin ();
77 104
78 // go through all strings roughly once every 4 minutes
79 int n = ht.size () / 256 + 16; 105 int n = ht.size () / 256 + 16;
80 106
81 for (;;) 107 for (;;)
82 { 108 {
83 if (i == ht.end ()) 109 if (i == ht.end ())
… …
87 } 113 }
88 else if (!--n) 114 else if (!--n)
89 break; 115 break;
90 else if (!refcnt (*i)) 116 else if (!refcnt (*i))
91 { 117 {
92 HT::iterator o = i++; 118 auto (o, i++);
93 const char *s = *o; 119 const char *s = *o;
120
94 ht.erase (o); 121 ht.erase (o);
95 122
96 //printf ("GC %4d %3d %d >%s<%d\n", (int)ht.size (), n, shstr::refcnt (s), s, shstr::length (s)); 123 //printf ("GC %4d %3d %d >%s<%d\n", (int)ht.size (), n, shstr::refcnt (s), s, shstr::length (s));
97 free (-2 + (int *)s); 124 shstr_alloc -= sizeof (int) * 2 + length (s) + 1;
125 g_slice_free1 (sizeof (int) * 2 + length (s) + 1, -2 + (int *) s);
98 } 126 }
99 else 127 else
100 ++i; 128 ++i;
101 } 129 }
102 130
103 curpos = *i; 131 curpos = *i;
104} 132}
105 133
134// declare these here to get correct initialisation order
135#define def(str) const shstr shstr_ ## str (# str);
136# include "shstrinc.h"
137#undef def
138
139shstr skill_names[NUM_SKILLS];
140
106//TODO: this should of course not be here 141//TODO: this should of course not be here
142
107/* buf_overflow() - we don't want to exceed the buffer size of 143/* buf_overflow() - we don't want to exceed the buffer size of
108 * buf1 by adding on buf2! Returns true if overflow will occur. 144 * buf1 by adding on buf2! Returns true if overflow will occur.
109 */ 145 */
110
111int 146int
112buf_overflow (const char *buf1, const char *buf2, int bufsize) 147buf_overflow (const char *buf1, const char *buf2, int bufsize)
113{ 148{
114 int len1 = 0, len2 = 0; 149 int len1 = 0, len2 = 0;
115 150
116 if (buf1) 151 if (buf1)
117 len1 = strlen (buf1); 152 len1 = strlen (buf1);
153
118 if (buf2) 154 if (buf2)
119 len2 = strlen (buf2); 155 len2 = strlen (buf2);
156
120 if ((len1 + len2) >= bufsize) 157 if ((len1 + len2) >= bufsize)
121 return 1;
122 return 0; 158 return 1;
159
160 return 0;
123} 161}
124

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