source:
trunk/mgpp/text/FileBuf.cpp@
13653
Last change on this file since 13653 was 3365, checked in by , 22 years ago | |
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1 | /************************************************************************** |
2 | * |
3 | * FileBuf.cpp -- File buffer |
4 | * Copyright (C) 1999 Rodger McNab |
5 | * |
6 | * This program 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 2 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, write to the Free Software |
18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
19 | * |
20 | **************************************************************************/ |
21 | |
22 | #include "FileBuf.h" |
23 | #include "sysfuncs.h" |
24 | |
25 | #ifdef __WIN32__ |
26 | # include <io.h> |
27 | # define read _read |
28 | #endif |
29 | |
30 | bool FileBuf::NextBuf () { |
31 | if (fd < 0) return false; |
32 | int numbytes = read (fd, buf, FILEBUFSIZE); |
33 | if (numbytes < 0) numbytes = 0; |
34 | |
35 | here = buf; |
36 | end = here + numbytes; |
37 | |
38 | return (numbytes > 0); |
39 | } |
40 | |
41 | FileBuf::FileBuf () { |
42 | here = end = buf; |
43 | fd = -1; |
44 | } |
45 | |
46 | void FileBuf::SetFD (int _fd) { |
47 | here = end = buf; |
48 | fd = _fd; |
49 | } |
50 |
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