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 
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 {
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 
preClose(FileDescriptor fd)58     void preClose(FileDescriptor fd) throws IOException {
59         preClose0(fd);
60     }
61 
close(FileDescriptor fd)62     void close(FileDescriptor fd) throws IOException {
63         close0(fd);
64     }
65 
66     //-- Native methods
read0(FileDescriptor fd, long address, int len)67     static native int read0(FileDescriptor fd, long address, int len)
68         throws IOException;
69 
readv0(FileDescriptor fd, long address, int len)70     static native long readv0(FileDescriptor fd, long address, int len)
71         throws IOException;
72 
write0(FileDescriptor fd, long address, int len)73     static native int write0(FileDescriptor fd, long address, int len)
74         throws IOException;
75 
writev0(FileDescriptor fd, long address, int len)76     static native long writev0(FileDescriptor fd, long address, int len)
77         throws IOException;
78 
preClose0(FileDescriptor fd)79     static native void preClose0(FileDescriptor fd) throws IOException;
80 
close0(FileDescriptor fd)81     static native void close0(FileDescriptor fd) throws IOException;
82 }
83