| 1 | /* |
1 | /* |
| 2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
2 | * This file is part of Deliantra, the Roguelike Realtime MMORPG. |
| 3 | * |
3 | * |
| 4 | * Copyright (©) 2005,2006,2007,2008,2009 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
4 | * Copyright (©) 2005,2006,2007,2008,2009,2010,2011,2012 Marc Alexander Lehmann / Robin Redeker / the Deliantra team |
| 5 | * Copyright (©) 2002,2007 Mark Wedel & Crossfire Development Team |
5 | * Copyright (©) 2002 Mark Wedel & Crossfire Development Team |
| 6 | * Copyright (©) 1992,2007 Frank Tore Johansen |
6 | * Copyright (©) 1992 Frank Tore Johansen |
| 7 | * |
7 | * |
| 8 | * Deliantra is free software: you can redistribute it and/or modify it under |
8 | * Deliantra is free software: you can redistribute it and/or modify it under |
| 9 | * the terms of the Affero GNU General Public License as published by the |
9 | * the terms of the Affero GNU General Public License as published by the |
| 10 | * Free Software Foundation, either version 3 of the License, or (at your |
10 | * Free Software Foundation, either version 3 of the License, or (at your |
| 11 | * option) any later version. |
11 | * 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, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 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 Affero GNU General Public License |
18 | * You should have received a copy of the Affero GNU General Public License |
| 19 | * and the GNU General Public License along with this program. If not, see |
19 | * and the GNU General Public License along with this program. If not, see |
| 20 | * <http://www.gnu.org/licenses/>. |
20 | * <http://www.gnu.org/licenses/>. |
| 21 | * |
21 | * |
| 22 | * The authors can be reached via e-mail to <support@deliantra.net> |
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 | |
| 28 | #include <cstring> |
28 | #include <cstring> |
| 29 | #include <cassert> |
29 | #include <cassert> |
| 30 | |
30 | |
|
|
31 | #include "compiler.h" |
| 31 | #include "util.h" |
32 | #include "util.h" |
| 32 | #include "shstr.h" |
33 | #include "shstr.h" |
| 33 | |
34 | |
| 34 | // this is a "buffer" that can grow fast |
35 | // this is a "buffer" that can grow fast |
| 35 | // and is still somewhat space-efficient. |
36 | // and is still somewhat space-efficient. |
| … | |
… | |
| 92 | int room () const { return end - ptr; } |
93 | int room () const { return end - ptr; } |
| 93 | |
94 | |
| 94 | // make sure we have "size" extra room |
95 | // make sure we have "size" extra room |
| 95 | char *force (int size) |
96 | char *force (int size) |
| 96 | { |
97 | { |
| 97 | if (expect_false (ptr + size >= end)) |
98 | if (expect_false (ptr + size > end)) |
| 98 | reserve (size); |
99 | reserve (size); |
| 99 | |
100 | |
|
|
101 | assume (ptr + size <= end); |
|
|
102 | |
| 100 | return ptr; |
103 | return ptr; |
|
|
104 | } |
|
|
105 | |
|
|
106 | // used for force + alloc combo |
|
|
107 | void alloc (char *p) |
|
|
108 | { |
|
|
109 | ptr = p; |
| 101 | } |
110 | } |
| 102 | |
111 | |
| 103 | // allocate size bytes and return pointer to them (caller must force()) |
112 | // allocate size bytes and return pointer to them (caller must force()) |
| 104 | char *falloc (int size) |
113 | char *falloc (int size) |
| 105 | { |
114 | { |
