57 lines
2.2 KiB
Java
57 lines
2.2 KiB
Java
/*
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* Copyright (c) 2000, 2002, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.nio.ch;
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import java.io.*;
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import java.nio.ByteBuffer;
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/**
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* Allows different platforms to call different native methods
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* for read and write operations.
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*/
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abstract class NativeDispatcher
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{
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abstract int read(FileDescriptor fd, byte[] buf, int offset, int length) throws IOException;
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abstract int write(FileDescriptor fd, byte[] buf, int offset, int length) throws IOException;
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abstract long read(FileDescriptor fd, ByteBuffer[] bufs, int offset, int length) throws IOException;
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abstract long write(FileDescriptor fd, ByteBuffer[] bufs, int offset, int length) throws IOException;
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abstract void close(FileDescriptor fd) throws IOException;
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// Prepare the given fd for closing by duping it to a known internal fd
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// that's already closed. This is necessary on some operating systems
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// (Solaris and Linux) to prevent fd recycling.
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//
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void preClose(FileDescriptor fd) throws IOException {
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// Do nothing by default; this is only needed on Unix
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}
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}
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