1 | /**************************************************************************
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2 | *
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3 | * FileBuf.cpp -- File buffer
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4 | * Copyright (C) 1999 Rodger McNab
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5 | *
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6 | * This program is free software; you can redistribute it and/or modify
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7 | * it under the terms of the GNU General Public License as published by
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8 | * the Free Software Foundation; either version 2 of the License, or
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9 | * (at your option) any later version.
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10 | *
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11 | * This program is distributed in the hope that it will be useful,
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12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 | * GNU General Public License for more details.
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15 | *
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16 | * You should have received a copy of the GNU General Public License
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17 | * along with this program; if not, write to the Free Software
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18 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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19 | *
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20 | **************************************************************************/
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21 |
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22 | #include "FileBuf.h"
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23 | #include "sysfuncs.h"
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24 |
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25 | #ifdef __WIN32__
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26 | # include <io.h>
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27 | # define read _read
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28 | #endif
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29 |
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30 | bool FileBuf::NextBuf () {
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31 | if (fd < 0) return false;
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32 | int numbytes = read (fd, buf, FILEBUFSIZE);
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33 | if (numbytes < 0) numbytes = 0;
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34 |
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35 | here = buf;
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36 | end = here + numbytes;
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37 |
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38 | return (numbytes > 0);
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39 | }
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40 |
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41 | FileBuf::FileBuf () {
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42 | here = end = buf;
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43 | fd = -1;
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44 | }
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45 |
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46 | void FileBuf::SetFD (int _fd) {
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47 | here = end = buf;
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48 | fd = _fd;
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49 | }
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50 |
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