author | michaelm |
Tue, 29 Oct 2019 19:55:34 +0000 | |
branch | unixdomainchannels |
changeset 58848 | c3df0f8b6d93 |
parent 58801 | 119ac9128c1b |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2000, 2019, 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.FileDescriptor; |
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import java.io.IOException; |
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import jdk.internal.access.JavaIOFileDescriptorAccess; |
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import jdk.internal.access.SharedSecrets; |
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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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class SocketDispatcher extends NativeDispatcher { |
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private static final JavaIOFileDescriptorAccess fdAccess = |
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SharedSecrets.getJavaIOFileDescriptorAccess(); |
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SocketDispatcher() { } |
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int read(FileDescriptor fd, long address, int len) throws IOException { |
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return read0(fd, address, len); |
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} |
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long readv(FileDescriptor fd, long address, int len) throws IOException { |
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return readv0(fd, address, len); |
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} |
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int write(FileDescriptor fd, long address, int len) throws IOException { |
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return write0(fd, address, len); |
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} |
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long writev(FileDescriptor fd, long address, int len) throws IOException { |
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return writev0(fd, address, len); |
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} |
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void preClose(FileDescriptor fd) throws IOException { |
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throw new UnsupportedOperationException(); |
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} |
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void close(FileDescriptor fd) throws IOException { |
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invalidateAndClose(fd); |
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} |
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static void invalidateAndClose(FileDescriptor fd) throws IOException { |
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assert fd.valid(); |
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int fdVal = fdAccess.get(fd); |
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fdAccess.set(fd, -1); |
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close0(fdVal); |
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} |
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// -- Native methods -- |
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private static native int read0(FileDescriptor fd, long address, int len) |
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throws IOException; |
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private static native long readv0(FileDescriptor fd, long address, int len) |
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throws IOException; |
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private static native int write0(FileDescriptor fd, long address, int len) |
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throws IOException; |
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private static native long writev0(FileDescriptor fd, long address, int len) |
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throws IOException; |
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private static native void close0(int fdVal) throws IOException; |
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static { |
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IOUtil.load(); |
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} |
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} |