1 /* Reattore HTTP Server
2
3 Copyright (C) 2002 Michael Hope <michaelh@juju.net.nz>
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program; if not, write to the Free Software
17 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18
19 $Id: ByteSource.java,v 1.5 2003/02/18 04:11:47 michaelh Exp $
20 */
21
22 package juju.reattore.io;
23
24 import java.io.IOException;
25
26 /*** A source that serves bytes.
27 */
28 public interface ByteSource
29 extends Source {
30
31 /*** Gets the next byte from the stream.
32
33 @return The next byte, or EOF on end of stream.
34 @throws IOException on error.
35 */
36 int get()
37 throws IOException;
38
39 /*** Bulk get operation.
40
41 @param into The buffer to get into.
42 @param offset The offset in the buffer to begin writing at.
43 @param length The maximum number of elements to read.
44 @return The number of elements read.
45 @throws IOException on error.
46 */
47 int get(byte[] into, int offset, int length)
48 throws IOException;
49
50 /*** Returns the number of elements remaining in the stream.
51
52 @return Number remaining, or a negative number if it is
53 unknown.
54 @throws IOException on error.
55 */
56 int remaining()
57 throws IOException;
58 }
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