1 /*
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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
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7  * published by the Free Software Foundation.  Oracle designates this
8  * particular file as subject to the "Classpath" exception as provided
9  * by Oracle 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
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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24  */
25 
26 package sun.nio.ch;
27 
28 import java.io.*;
29 import java.net.*;
30 
31 /**
32  * Allows different platforms to call different native methods
33  * for read and write operations.
34  */
35 
36 class DatagramDispatcher extends NativeDispatcher
37 {
38     static {
IOUtil.load()39         IOUtil.load();
40     }
41 
read(FileDescriptor fd, long address, int len)42     int read(FileDescriptor fd, long address, int len) throws IOException {
43         return read0(fd, address, len);
44     }
45 
readv(FileDescriptor fd, long address, int len)46     long readv(FileDescriptor fd, long address, int len) throws IOException {
47         return readv0(fd, address, len);
48     }
49 
write(FileDescriptor fd, long address, int len)50     int write(FileDescriptor fd, long address, int len) throws IOException {
51         return write0(fd, address, len);
52     }
53 
writev(FileDescriptor fd, long address, int len)54     long writev(FileDescriptor fd, long address, int len) throws IOException {
55         return writev0(fd, address, len);
56     }
57 
close(FileDescriptor fd)58     void close(FileDescriptor fd) throws IOException {
59         SocketDispatcher.close0(fd);
60     }
61 
read0(FileDescriptor fd, long address, int len)62     static native int read0(FileDescriptor fd, long address, int len)
63         throws IOException;
64 
readv0(FileDescriptor fd, long address, int len)65     static native long readv0(FileDescriptor fd, long address, int len)
66         throws IOException;
67 
write0(FileDescriptor fd, long address, int len)68     static native int write0(FileDescriptor fd, long address, int len)
69         throws IOException;
70 
writev0(FileDescriptor fd, long address, int len)71     static native long writev0(FileDescriptor fd, long address, int len)
72         throws IOException;
73 }
74