1 | /* |
1 | /* |
2 | * This file is part of Crossfire TRT, the Multiplayer Online Role Playing Game. |
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 it |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
9 | * under the terms of the GNU General Public License as published by the Free |
9 | * the terms of the Affero GNU General Public License as published by the |
10 | * Software Foundation; either version 2 of the License, or (at your option) |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
11 | * any later version. |
11 | * option) any later version. |
12 | * |
12 | * |
13 | * This program is distributed in the hope that it will be useful, but |
13 | * This program is distributed in the hope that it will be useful, |
14 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | * 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 along |
18 | * You should have received a copy of the Affero GNU General Public License |
19 | * with Crossfire TRT; if not, write to the Free Software Foundation, Inc. 51 |
19 | * and the GNU General Public License along with this program. If not, see |
20 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
20 | * <http://www.gnu.org/licenses/>. |
21 | * |
21 | * |
22 | * The authors can be reached via e-mail to <crossfire@schmorp.de> |
22 | * The authors can be reached via e-mail to <support@deliantra.net> |
23 | */ |
23 | */ |
24 | |
24 | |
25 | #ifndef DYNBUF_H__ |
25 | #ifndef DYNBUF_H__ |
26 | #define DYNBUF_H__ |
26 | #define DYNBUF_H__ |
27 | |
27 | |
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28 | #include <cstdarg> |
28 | #include <cstring> |
29 | #include <cstring> |
29 | #include <cassert> |
30 | #include <cassert> |
30 | |
31 | |
31 | #include "util.h" |
32 | #include "util.h" |
32 | #include "shstr.h" |
33 | #include "shstr.h" |
… | |
… | |
47 | int size; |
48 | int size; |
48 | char data[0]; |
49 | char data[0]; |
49 | }; |
50 | }; |
50 | |
51 | |
51 | char *ptr, *end; |
52 | char *ptr, *end; |
52 | int ext; |
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53 | int _size; |
53 | int _size; |
54 | |
54 | |
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55 | int extend, cextend; |
55 | chunk *first, *last; |
56 | chunk *first, *last; |
56 | |
57 | |
57 | void _reserve (int size); |
58 | void reserve (int size); |
58 | void _clear (); |
59 | void init (int initial); // allocate sinitial chunk |
59 | void clear (); |
60 | void free (chunk *&chain); // free chain of chunks |
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61 | char *_linearise (); |
60 | void finish (); |
62 | void finalise (); |
61 | |
63 | |
62 | public: |
64 | public: |
63 | |
65 | |
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66 | // initial - the size of the initial chunk to be allocated |
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67 | // extend - first incremental step when buffer size exceeded |
64 | dynbuf (int initial = 4096, int extend = 16384); |
68 | dynbuf (int initial = 4096, int extend = 16384) |
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69 | : extend (extend) |
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70 | { |
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71 | init (initial); |
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72 | } |
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73 | |
65 | ~dynbuf (); |
74 | ~dynbuf () |
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75 | { |
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76 | free (first); |
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77 | } |
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78 | |
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79 | // resets the dynbuf, but does not free the first chunk |
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80 | // which is either of size "initial" or the size of the last |
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81 | // linearise |
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82 | void clear (); |
66 | |
83 | |
67 | int size () const { return _size + (ptr - last->data); } |
84 | int size () const { return _size + (ptr - last->data); } |
68 | bool empty () const { return !size (); } |
85 | bool empty () const { return !size (); } |
69 | |
86 | |
70 | void linearise (void *data); |
87 | void linearise (void *data); |
71 | char *linearise (); // does not 0-terminate(!) |
88 | char *linearise () // does not 0-terminate(!) |
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89 | { |
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90 | return first->next ? _linearise () : first->data; |
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91 | } |
72 | |
92 | |
73 | int room () const { return end - ptr; } |
93 | int room () const { return end - ptr; } |
74 | |
94 | |
75 | char *force (int size) |
95 | char *force (int size) |
76 | { |
96 | { |
77 | if (expect_false (ptr + size >= end)) |
97 | if (expect_false (ptr + size >= end)) |
78 | _reserve (size); |
98 | reserve (size); |
79 | |
99 | |
80 | return ptr; |
100 | return ptr; |
81 | } |
101 | } |
82 | |
102 | |
83 | char *falloc (int size) |
103 | char *falloc (int size) |
… | |
… | |
114 | void add (const char *s) |
134 | void add (const char *s) |
115 | { |
135 | { |
116 | add (s, strlen (s)); |
136 | add (s, strlen (s)); |
117 | } |
137 | } |
118 | |
138 | |
119 | void add (const shstr &s) |
139 | void add (shstr_tmp s) |
120 | { |
140 | { |
121 | add (s.s, s.length ()); |
141 | add (s.s, s.length ()); |
122 | } |
142 | } |
123 | |
143 | |
124 | //TODO |
144 | //TODO |
125 | //void add_destructive (dynbuf &buf); |
145 | //void add_destructive (dynbuf &buf); |
126 | |
146 | |
127 | dynbuf &operator << (char c) { add (c); return *this; } |
147 | dynbuf &operator << (char c) { add (c); return *this; } |
128 | dynbuf &operator << (unsigned char c) { return *this << char (c); } |
148 | dynbuf &operator << (unsigned char c) { return *this << char (c); } |
129 | dynbuf &operator << (const char *s) { add (s); return *this; } |
149 | dynbuf &operator << (const char *s) { add (s); return *this; } |
130 | dynbuf &operator << (const shstr &s) { add (s); return *this; } |
150 | dynbuf &operator << (shstr_tmp s) { add (s); return *this; } |
131 | dynbuf &operator << (const std::string &s) { add (s.data(), s.size ()); return *this; } |
151 | dynbuf &operator << (const std::string &s) { add (s.data(), s.size ()); return *this; } |
132 | |
152 | |
133 | operator std::string (); |
153 | operator std::string (); |
134 | }; |
154 | }; |
135 | |
155 | |
… | |
… | |
138 | dynbuf_text (int initial = 4096, int extend = 16384) |
158 | dynbuf_text (int initial = 4096, int extend = 16384) |
139 | : dynbuf (initial, extend) |
159 | : dynbuf (initial, extend) |
140 | { } |
160 | { } |
141 | |
161 | |
142 | using dynbuf::add; |
162 | using dynbuf::add; |
143 | |
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144 | void add (sint32 i); |
163 | void add (sint32 i); |
145 | void add (sint64 i); |
164 | void add (sint64 i); |
146 | |
165 | |
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166 | //TODO: should optimise the case printf "(name %+d)" as it comes up extremely often |
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167 | |
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168 | //using dynbuf::operator <<; // doesn't work, sometimes C++ just suxx |
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169 | // instead we use an ugly template function |
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170 | template<typename T> |
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171 | dynbuf_text &operator << (T c) { *(dynbuf *)this << c; return *this; } |
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172 | |
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173 | dynbuf_text &operator << (sint16 i) { add (sint32 (i)); return *this; } |
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174 | dynbuf_text &operator << (uint16 i) { add (sint32 (i)); return *this; } |
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175 | dynbuf_text &operator << (sint32 i) { add (sint32 (i)); return *this; } |
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176 | dynbuf_text &operator << (sint64 i) { add (sint64 (i)); return *this; } |
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177 | dynbuf_text &operator << (uint32 i) { add (sint64 (i)); return *this; } |
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178 | dynbuf_text &operator << (uint64 i) { add (sint64 (i)); return *this; } |
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179 | |
147 | void printf (const char *format, ...); |
180 | void printf (const char *format, ...); |
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181 | void vprintf (const char *format, va_list ap); |
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182 | |
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183 | void add_abilities (const char *name, uint32 abilities); |
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184 | void add_paths (const char *name, uint32 paths); |
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185 | |
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186 | // returns the string, linearised and with trailing \0 |
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187 | operator char *(); |
148 | }; |
188 | }; |
149 | |
189 | |
150 | #endif |
190 | #endif |
151 | |
191 | |