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Diffstat (limited to 'subversion/bindings/javahl/src/org/apache/subversion/javahl/util/RequestChannel.java')
-rw-r--r-- | subversion/bindings/javahl/src/org/apache/subversion/javahl/util/RequestChannel.java | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/subversion/bindings/javahl/src/org/apache/subversion/javahl/util/RequestChannel.java b/subversion/bindings/javahl/src/org/apache/subversion/javahl/util/RequestChannel.java new file mode 100644 index 0000000..3040536 --- /dev/null +++ b/subversion/bindings/javahl/src/org/apache/subversion/javahl/util/RequestChannel.java @@ -0,0 +1,58 @@ +/** + * @copyright + * ==================================================================== + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you under the Apache License, Version 2.0 (the + * "License"); you may not use this file except in compliance + * with the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, + * software distributed under the License is distributed on an + * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY + * KIND, either express or implied. See the License for the + * specific language governing permissions and limitations + * under the License. + * ==================================================================== + * @endcopyright + */ + +package org.apache.subversion.javahl.util; + +import java.io.IOException; +import java.nio.ByteBuffer; +import java.nio.channels.ReadableByteChannel; +import java.nio.channels.ClosedChannelException; + +/* The following channel subclasses are used by the native + implementation of the tunnel management code. */ + +class RequestChannel + extends TunnelChannel + implements ReadableByteChannel +{ + private RequestChannel(long nativeChannel) + { + super(nativeChannel); + } + + public int read(ByteBuffer dst) throws IOException + { + long channel = nativeChannel.get(); + if (channel != 0) + try { + return nativeRead(channel, dst); + } catch (IOException ex) { + nativeChannel.set(0); // Close the channel + throw ex; + } + throw new ClosedChannelException(); + } + + private static native int nativeRead(long nativeChannel, ByteBuffer dst) + throws IOException; +} |