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Diffstat (limited to 'trunk/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoSender.java')
-rw-r--r--trunk/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoSender.java309
1 files changed, 0 insertions, 309 deletions
diff --git a/trunk/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoSender.java b/trunk/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoSender.java
deleted file mode 100644
index 00652e2927..0000000000
--- a/trunk/qpid/java/common/src/main/java/org/apache/qpid/transport/network/io/IoSender.java
+++ /dev/null
@@ -1,309 +0,0 @@
-/*
- * 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.
- */
-package org.apache.qpid.transport.network.io;
-
-import static org.apache.qpid.transport.util.Functions.mod;
-
-import java.io.IOException;
-import java.io.OutputStream;
-import java.net.Socket;
-import java.nio.ByteBuffer;
-import java.util.concurrent.atomic.AtomicBoolean;
-
-import org.apache.qpid.thread.Threading;
-import org.apache.qpid.transport.Sender;
-import org.apache.qpid.transport.SenderException;
-import org.apache.qpid.transport.TransportException;
-import org.apache.qpid.transport.util.Logger;
-
-
-public final class IoSender implements Runnable, Sender<ByteBuffer>
-{
-
- private static final Logger log = Logger.get(IoSender.class);
-
- // by starting here, we ensure that we always test the wraparound
- // case, we should probably make this configurable somehow so that
- // we can test other cases as well
- private final static int START = Integer.MAX_VALUE - 10;
-
- private final IoTransport transport;
- private final long timeout;
- private final Socket socket;
- private final OutputStream out;
-
- private final byte[] buffer;
- private volatile int head = START;
- private volatile int tail = START;
- private volatile boolean idle = true;
- private final Object notFull = new Object();
- private final Object notEmpty = new Object();
- private final AtomicBoolean closed = new AtomicBoolean(false);
- private final Thread senderThread;
- private long idleTimeout;
-
- private volatile Throwable exception = null;
-
-
- public IoSender(IoTransport transport, int bufferSize, long timeout)
- {
- this.transport = transport;
- this.socket = transport.getSocket();
- this.buffer = new byte[pof2(bufferSize)]; // buffer size must be a power of 2
- this.timeout = timeout;
-
- try
- {
- out = socket.getOutputStream();
- }
- catch (IOException e)
- {
- throw new TransportException("Error getting output stream for socket", e);
- }
-
- try
- {
- senderThread = Threading.getThreadFactory().createThread(this);
- }
- catch(Exception e)
- {
- throw new Error("Error creating IOSender thread",e);
- }
-
- senderThread.setDaemon(true);
- senderThread.setName(String.format("IoSender - %s", socket.getRemoteSocketAddress()));
- senderThread.start();
- }
-
- private static final int pof2(int n)
- {
- int result = 1;
- while (result < n)
- {
- result *= 2;
- }
- return result;
- }
-
- public void send(ByteBuffer buf)
- {
- if (closed.get())
- {
- throw new SenderException("sender is closed", exception);
- }
-
- final int size = buffer.length;
- int remaining = buf.remaining();
-
- while (remaining > 0)
- {
- final int hd = head;
- final int tl = tail;
-
- if (hd - tl >= size)
- {
- flush();
- synchronized (notFull)
- {
- long start = System.currentTimeMillis();
- long elapsed = 0;
- while (!closed.get() && head - tail >= size && elapsed < timeout)
- {
- try
- {
- notFull.wait(timeout - elapsed);
- }
- catch (InterruptedException e)
- {
- // pass
- }
- elapsed += System.currentTimeMillis() - start;
- }
-
- if (closed.get())
- {
- throw new SenderException("sender is closed", exception);
- }
-
- if (head - tail >= size)
- {
- throw new SenderException(String.format("write timed out: %s, %s", head, tail));
- }
- }
- continue;
- }
-
- final int hd_idx = mod(hd, size);
- final int tl_idx = mod(tl, size);
- final int length;
-
- if (tl_idx > hd_idx)
- {
- length = Math.min(tl_idx - hd_idx, remaining);
- }
- else
- {
- length = Math.min(size - hd_idx, remaining);
- }
-
- buf.get(buffer, hd_idx, length);
- head += length;
- remaining -= length;
- }
- }
-
- public void flush()
- {
- if (idle)
- {
- synchronized (notEmpty)
- {
- notEmpty.notify();
- }
- }
- }
-
- public void close()
- {
- close(true);
- }
-
- void close(boolean reportException)
- {
- if (!closed.getAndSet(true))
- {
- synchronized (notFull)
- {
- notFull.notify();
- }
-
- synchronized (notEmpty)
- {
- notEmpty.notify();
- }
-
- try
- {
- if (Thread.currentThread() != senderThread)
- {
- senderThread.join(timeout);
- if (senderThread.isAlive())
- {
- throw new SenderException("join timed out");
- }
- }
- transport.getReceiver().close(false);
- }
- catch (InterruptedException e)
- {
- throw new SenderException(e);
- }
-
- if (reportException && exception != null)
- {
- throw new SenderException(exception);
- }
- }
- }
-
- public void run()
- {
- final int size = buffer.length;
- while (true)
- {
- final int hd = head;
- final int tl = tail;
-
- if (hd == tl)
- {
- if (closed.get())
- {
- break;
- }
-
- idle = true;
-
- synchronized (notEmpty)
- {
- while (head == tail && !closed.get())
- {
- try
- {
- notEmpty.wait();
- }
- catch (InterruptedException e)
- {
- // pass
- }
- }
- }
-
- idle = false;
-
- continue;
- }
-
- final int hd_idx = mod(hd, size);
- final int tl_idx = mod(tl, size);
-
- final int length;
- if (tl_idx < hd_idx)
- {
- length = hd_idx - tl_idx;
- }
- else
- {
- length = size - tl_idx;
- }
-
- try
- {
- out.write(buffer, tl_idx, length);
- }
- catch (IOException e)
- {
- log.error(e, "error in write thread");
- exception = e;
- close(false);
- break;
- }
- tail += length;
- if (head - tl >= size)
- {
- synchronized (notFull)
- {
- notFull.notify();
- }
- }
- }
- }
-
- public void setIdleTimeout(long l)
- {
- try
- {
- socket.setSoTimeout((int)l*2);
- idleTimeout = l;
- }
- catch (Exception e)
- {
- throw new SenderException(e);
- }
- }
-}