Importing upstream Jetty jetty-9.2.1.v20140609

[gigi.git] / lib / jetty / org / eclipse / jetty / io / ChannelEndPoint.java

diff --git a/lib/jetty/org/eclipse/jetty/io/ChannelEndPoint.java b/lib/jetty/org/eclipse/jetty/io/ChannelEndPoint.java
new file mode 100644 (file)
index 0000000..c65ca0c
--- /dev/null
+++ b/lib/jetty/org/eclipse/jetty/io/ChannelEndPoint.java
@@ -0,0 +1,229 @@
+//
+//  ========================================================================
+//  Copyright (c) 1995-2014 Mort Bay Consulting Pty. Ltd.
+//  ------------------------------------------------------------------------
+//  All rights reserved. This program and the accompanying materials
+//  are made available under the terms of the Eclipse Public License v1.0
+//  and Apache License v2.0 which accompanies this distribution.
+//
+//      The Eclipse Public License is available at
+//      http://www.eclipse.org/legal/epl-v10.html
+//
+//      The Apache License v2.0 is available at
+//      http://www.opensource.org/licenses/apache2.0.php
+//
+//  You may elect to redistribute this code under either of these licenses.
+//  ========================================================================
+//
+
+package org.eclipse.jetty.io;
+
+import java.io.IOException;
+import java.net.InetSocketAddress;
+import java.net.Socket;
+import java.nio.ByteBuffer;
+import java.nio.channels.ByteChannel;
+import java.nio.channels.GatheringByteChannel;
+import java.nio.channels.SocketChannel;
+
+import org.eclipse.jetty.util.BufferUtil;
+import org.eclipse.jetty.util.log.Log;
+import org.eclipse.jetty.util.log.Logger;
+import org.eclipse.jetty.util.thread.Scheduler;
+
+/**
+ * Channel End Point.
+ * <p>Holds the channel and socket for an NIO endpoint.
+ */
+public class ChannelEndPoint extends AbstractEndPoint
+{
+    private static final Logger LOG = Log.getLogger(ChannelEndPoint.class);
+
+    private final ByteChannel _channel;
+    private final Socket _socket;
+    private volatile boolean _ishut;
+    private volatile boolean _oshut;
+
+    public ChannelEndPoint(Scheduler scheduler,SocketChannel channel)
+    {
+        super(scheduler,
+            (InetSocketAddress)channel.socket().getLocalSocketAddress(),
+            (InetSocketAddress)channel.socket().getRemoteSocketAddress());
+        _channel = channel;
+        _socket=channel.socket();
+    }
+
+    @Override
+    public boolean isOpen()
+    {
+        return _channel.isOpen();
+    }
+
+    protected void shutdownInput()
+    {
+        LOG.debug("ishut {}", this);
+        _ishut=true;
+        if (_oshut)
+            close();
+    }
+
+    @Override
+    public void shutdownOutput()
+    {
+        LOG.debug("oshut {}", this);
+        _oshut = true;
+        if (_channel.isOpen())
+        {
+            try
+            {
+                if (!_socket.isOutputShutdown())
+                    _socket.shutdownOutput();
+            }
+            catch (IOException e)
+            {
+                LOG.debug(e);
+            }
+            finally
+            {
+                if (_ishut)
+                {
+                    close();
+                }
+            }
+        }
+    }
+
+    @Override
+    public boolean isOutputShutdown()
+    {
+        return _oshut || !_channel.isOpen() || _socket.isOutputShutdown();
+    }
+
+    @Override
+    public boolean isInputShutdown()
+    {
+        return _ishut || !_channel.isOpen() || _socket.isInputShutdown();
+    }
+
+    @Override
+    public void close()
+    {
+        super.close();
+        LOG.debug("close {}", this);
+        try
+        {
+            _channel.close();
+        }
+        catch (IOException e)
+        {
+            LOG.debug(e);
+        }
+        finally
+        {
+            _ishut=true;
+            _oshut=true;
+        }
+    }
+
+    @Override
+    public int fill(ByteBuffer buffer) throws IOException
+    {
+        if (_ishut)
+            return -1;
+
+        int pos=BufferUtil.flipToFill(buffer);
+        try
+        {
+            int filled = _channel.read(buffer);
+            if (LOG.isDebugEnabled()) // Avoid boxing of variable 'filled'
+                LOG.debug("filled {} {}", filled, this);
+
+            if (filled>0)
+                notIdle();
+            else if (filled==-1)
+                shutdownInput();
+
+            return filled;
+        }
+        catch(IOException e)
+        {
+            LOG.debug(e);
+            shutdownInput();
+            return -1;
+        }
+        finally
+        {
+            BufferUtil.flipToFlush(buffer,pos);
+        }
+    }
+
+    @Override
+    public boolean flush(ByteBuffer... buffers) throws IOException
+    {
+        int flushed=0;
+        try
+        {
+            if (buffers.length==1)
+                flushed=_channel.write(buffers[0]);
+            else if (buffers.length>1 && _channel instanceof GatheringByteChannel)
+                flushed= (int)((GatheringByteChannel)_channel).write(buffers,0,buffers.length);
+            else
+            {
+                for (ByteBuffer b : buffers)
+                {
+                    if (b.hasRemaining())
+                    {
+                        int l=_channel.write(b);
+                        if (l>0)
+                            flushed+=l;
+                        if (b.hasRemaining())
+                            break;
+                    }
+                }
+            }
+            if (LOG.isDebugEnabled())
+                LOG.debug("flushed {} {}", flushed, this);
+        }
+        catch (IOException e)
+        {
+            throw new EofException(e);
+        }
+
+        if (flushed>0)
+            notIdle();
+
+        for (ByteBuffer b : buffers)
+            if (!BufferUtil.isEmpty(b))
+                return false;
+
+        return true;
+    }
+
+    public ByteChannel getChannel()
+    {
+        return _channel;
+    }
+
+    @Override
+    public Object getTransport()
+    {
+        return _channel;
+    }
+
+    public Socket getSocket()
+    {
+        return _socket;
+    }
+
+    @Override
+    protected void onIncompleteFlush()
+    {
+        throw new UnsupportedOperationException();
+    }
+
+    @Override
+    protected boolean needsFill() throws IOException
+    {
+        throw new UnsupportedOperationException();
+    }
+}