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    1   /*
    2    * Copyright 2009 Red Hat, Inc.
    3    *
    4    * Red Hat licenses this file to you under the Apache License, version 2.0
    5    * (the "License"); you may not use this file except in compliance with the
    6    * License.  You may obtain a copy of the License at:
    7    *
    8    *    http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    12   * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
    13   * License for the specific language governing permissions and limitations
    14   * under the License.
    15   */
    16  package org.jboss.netty.channel.socket.nio;
    17
    18  import static org.jboss.netty.channel.Channels.*;
    19
    20  import java.io.IOException;
    21  import java.nio.channels.SocketChannel;
    22
    23  import org.jboss.netty.channel.ChannelException;
    24  import org.jboss.netty.channel.ChannelFactory;
    25  import org.jboss.netty.channel.ChannelFuture;
    26  import org.jboss.netty.channel.ChannelPipeline;
    27  import org.jboss.netty.channel.ChannelSink;
    28  import org.jboss.netty.logging.InternalLogger;
    29  import org.jboss.netty.logging.InternalLoggerFactory;
    30
    31  /**
    32   *
    33   * @author <a href="http://www.jboss.org/netty/">The Netty Project</a>
    34   * @author <a href="http://gleamynode.net/">Trustin Lee</a>
    35   *
    36   * @version $Rev: 2080 $, $Date: 2010-01-26 18:04:19 +0900 (Tue, 26 Jan 2010) $
    37   *
    38   */
    39  final class NioClientSocketChannel extends NioSocketChannel {
    40
    41      private static final InternalLogger logger =
    42          InternalLoggerFactory.getInstance(NioClientSocketChannel.class);
    43
    44      private static SocketChannel newSocket() {
    45          SocketChannel socket;
    46          try {
    47              socket = SocketChannel.open();
    48          } catch (IOException e) {
    49              throw new ChannelException("Failed to open a socket.", e);
    50          }
    51
    52          boolean success = false;
    53          try {
    54              socket.configureBlocking(false);
    55              success = true;
    56          } catch (IOException e) {
    57              throw new ChannelException("Failed to enter non-blocking mode.", e);
    58          } finally {
    59              if (!success) {
    60                  try {
    61                      socket.close();
    62                  } catch (IOException e) {
    63                      logger.warn(
    64                              "Failed to close a partially initialized socket.",
    65                              e);
    66                  }
    67              }
    68          }
    69
    70          return socket;
    71      }
    72
    73      volatile ChannelFuture connectFuture;
    74      volatile boolean boundManually;
    75
    76      // Does not need to be volatile as it's accessed by only one thread.
    77      long connectDeadlineNanos;
    78
    79      NioClientSocketChannel(
    80              ChannelFactory factory, ChannelPipeline pipeline,
    81              ChannelSink sink, NioWorker worker) {
    82
    83          super(null, factory, pipeline, sink, newSocket(), worker);
    84          fireChannelOpen(this);
    85      }
    86  }