1 /*
2 * Copyright 2000-2005 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package sun.nio.ch;
27
28 import java.io;
29
30 /**
31 * Allows different platforms to call different native methods
32 * for read and write operations.
33 */
34
35 class SocketDispatcher extends NativeDispatcher
36 {
37
38 static {
39 Util.load();
40 }
41
42 int read(FileDescriptor fd, long address, int len) throws IOException {
43 return read0(fd, address, len);
44 }
45
46 long readv(FileDescriptor fd, long address, int len) throws IOException {
47 return readv0(fd, address, len);
48 }
49
50 int write(FileDescriptor fd, long address, int len) throws IOException {
51 return write0(fd, address, len);
52 }
53
54 long writev(FileDescriptor fd, long address, int len) throws IOException {
55 return writev0(fd, address, len);
56 }
57
58 void close(FileDescriptor fd) throws IOException {
59 }
60
61 void preClose(FileDescriptor fd) throws IOException {
62 close0(fd);
63 }
64
65 //-- Native methods
66 static native int read0(FileDescriptor fd, long address, int len)
67 throws IOException;
68
69 static native long readv0(FileDescriptor fd, long address, int len)
70 throws IOException;
71
72 static native int write0(FileDescriptor fd, long address, int len)
73 throws IOException;
74
75 static native long writev0(FileDescriptor fd, long address, int len)
76 throws IOException;
77
78 static native void close0(FileDescriptor fd) throws IOException;
79 }
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