java.net.Socket#setPerformancePreferences

Source File: AdbConnection.java From SoloPi with Apache License 2.0

6 votes

/**
 * Creates a AdbConnection object associated with the socket and
 * crypto object specified.
 * @param socket The socket that the connection will use for communcation.
 * @param crypto The crypto object that stores the key pair for authentication.
 * @return A new AdbConnection object.
 * @throws IOException If there is a socket error
 */
public static AdbConnection create(Socket socket, AdbCrypto crypto) throws IOException
{
	AdbConnection newConn = new AdbConnection();
	
	newConn.crypto = crypto;
	
	newConn.socket = socket;

	// 试试bufferedStream
	newConn.inputStream = socket.getInputStream();
	newConn.outputStream = socket.getOutputStream();

	/* Disable Nagle because we're sending tiny packets */
	socket.setTcpNoDelay(true);
	socket.setTrafficClass(0x10);
	socket.setPerformancePreferences(1, 3, 2);
	return newConn;
}

Source File: SocketProperties.java From Tomcat7.0.67 with Apache License 2.0

6 votes

public void setProperties(Socket socket) throws SocketException{
    if (rxBufSize != null)
        socket.setReceiveBufferSize(rxBufSize.intValue());
    if (txBufSize != null)
        socket.setSendBufferSize(txBufSize.intValue());
    if (ooBInline !=null)
        socket.setOOBInline(ooBInline.booleanValue());
    if (soKeepAlive != null)
        socket.setKeepAlive(soKeepAlive.booleanValue());
    if (performanceConnectionTime != null && performanceLatency != null &&
            performanceBandwidth != null)
        socket.setPerformancePreferences(
                performanceConnectionTime.intValue(),
                performanceLatency.intValue(),
                performanceBandwidth.intValue());
    if (soReuseAddress != null)
        socket.setReuseAddress(soReuseAddress.booleanValue());
    if (soLingerOn != null && soLingerTime != null)
        socket.setSoLinger(soLingerOn.booleanValue(),
                soLingerTime.intValue());
    if (soTimeout != null && soTimeout.intValue() >= 0)
        socket.setSoTimeout(soTimeout.intValue());
    if (tcpNoDelay != null)
        socket.setTcpNoDelay(tcpNoDelay.booleanValue());
}

Source File: SocketProperties.java From tomcatsrc with Apache License 2.0

6 votes

public void setProperties(Socket socket) throws SocketException{
    if (rxBufSize != null)
        socket.setReceiveBufferSize(rxBufSize.intValue());
    if (txBufSize != null)
        socket.setSendBufferSize(txBufSize.intValue());
    if (ooBInline !=null)
        socket.setOOBInline(ooBInline.booleanValue());
    if (soKeepAlive != null)
        socket.setKeepAlive(soKeepAlive.booleanValue());
    if (performanceConnectionTime != null && performanceLatency != null &&
            performanceBandwidth != null)
        socket.setPerformancePreferences(
                performanceConnectionTime.intValue(),
                performanceLatency.intValue(),
                performanceBandwidth.intValue());
    if (soReuseAddress != null)
        socket.setReuseAddress(soReuseAddress.booleanValue());
    if (soLingerOn != null && soLingerTime != null)
        socket.setSoLinger(soLingerOn.booleanValue(),
                soLingerTime.intValue());
    if (soTimeout != null && soTimeout.intValue() >= 0)
        socket.setSoTimeout(soTimeout.intValue());
    if (tcpNoDelay != null)
        socket.setTcpNoDelay(tcpNoDelay.booleanValue());
}

Source File: NioLaserClient.java From laser with GNU General Public License v3.0

6 votes

/**
 * 获取并配置SocketChannel
 *
 * @return 返回SocketChannel
 * @throws IOException
 */
private SocketChannel getAndConfigSocketChannel() throws IOException {
    final SocketChannel socketChannel = SocketChannel.open();
    socketChannel.configureBlocking(false);
    // config the socket
    final Socket socket = socketChannel.socket();
    socket.setTcpNoDelay(options.isClientTcpNoDelay());
    socket.setReceiveBufferSize(options.getClientSocketReceiverBufferSize());
    socket.setSendBufferSize(options.getClientSocketSendBufferSize());
    socket.setSoTimeout(options.getClientSocketTimeout());
    socket.setPerformancePreferences(
            options.getClientPerformancePreferences()[0],
            options.getClientPerformancePreferences()[1],
            options.getClientPerformancePreferences()[2]);
    socket.setTrafficClass(options.getClientTrafficClass());
    return socketChannel;
}

Source File: SocketProperties.java From Tomcat8-Source-Read with MIT License

5 votes

public void setProperties(Socket socket) throws SocketException{
    if (rxBufSize != null)
        socket.setReceiveBufferSize(rxBufSize.intValue());
    if (txBufSize != null)
        socket.setSendBufferSize(txBufSize.intValue());
    if (ooBInline !=null)
        socket.setOOBInline(ooBInline.booleanValue());
    if (soKeepAlive != null)
        socket.setKeepAlive(soKeepAlive.booleanValue());
    if (performanceConnectionTime != null && performanceLatency != null &&
            performanceBandwidth != null)
        socket.setPerformancePreferences(
                performanceConnectionTime.intValue(),
                performanceLatency.intValue(),
                performanceBandwidth.intValue());
    if (soReuseAddress != null)
        socket.setReuseAddress(soReuseAddress.booleanValue());
    if (soLingerOn != null && soLingerTime != null)
        socket.setSoLinger(soLingerOn.booleanValue(),
                soLingerTime.intValue());
    if (soTimeout != null && soTimeout.intValue() >= 0)
        socket.setSoTimeout(soTimeout.intValue());
    if (tcpNoDelay != null) {
        try {
            socket.setTcpNoDelay(tcpNoDelay.booleanValue());
        } catch (SocketException e) {
            // Some socket types may not support this option which is set by default
        }
    }
}

Source File: NioLaserServer.java From laser with GNU General Public License v3.0

5 votes

/**
 * 配置SocketChannel
 *
 * @throws IOException
 */
private void configSocketChannel(SocketChannel socketChannel) throws IOException {
    socketChannel.configureBlocking(false);
    // config the socket
    final Socket socket = socketChannel.socket();
    socket.setTcpNoDelay(options.isServerChildTcpNoDelay());
    socket.setReceiveBufferSize(options.getServerChildSocketReceiverBufferSize());
    socket.setSendBufferSize(options.getServerChildSocketSendBufferSize());
    socket.setSoTimeout(options.getServerChildSocketTimeout());
    socket.setPerformancePreferences(
            options.getServerChildPerformancePreferences()[0],
            options.getServerChildPerformancePreferences()[1],
            options.getServerChildPerformancePreferences()[2]);
    socket.setTrafficClass(options.getServerChildTrafficClass());
}

Source File: SocketThread.java From Cangol-appcore with Apache License 2.0

5 votes

private void makeRequest() throws IOException {
    Log.d(TAG, "socket connect executionCount=" + executionCount);
    if (!Thread.currentThread().isInterrupted()) {
        socket = new Socket();
        socket.setTrafficClass(0x04);//低成本0x02;高可靠性0x04;最高吞吐量;0x08;小延迟0x10
        socket.setTcpNoDelay(true);
        socket.setSoTimeout(isLong ? CONNECT_TIME_OUT * 3 : timeout);
        socket.setKeepAlive(isLong);
        socket.setPerformancePreferences(3, 2, 1);//相对重要性 (connectionTime:表示用最少时间建立连接;latency:表示最小延迟;bandwidth:表示最高带宽)
        socket.setReuseAddress(false);
        socket.setSoLinger(true, LINGER_TIME);//linger=0:当close时立即关闭,丢弃剩余数据
        Log.d(TAG, "socket " + host + ":" + port + " connect...");
        socket.connect(new InetSocketAddress(host, port), CONNECT_TIME_OUT);
        isConnecting = true;
        Log.d(TAG, "socket is connected. " + socket.getLocalPort());
        socketHandler.sendConnectedMessage();

        inputStream = new DataInputStream(socket.getInputStream());
        outputStream = new DataOutputStream(socket.getOutputStream());
        Log.d(TAG, "socket is " + (isLong ? "isLong" : "") + " connect.");
        if (!isLong) {
            handleSocketWrite();
            handleSocketRead();
            disconnect();
        } else {
            executorService.submit(new SocketWriteThread(socketHandler, outputStream));
            executorService.submit(new SocketReadThread(socketHandler, inputStream));
        }
    } else {
        isConnecting = false;
        Log.d(TAG, "Thread.isInterrupted");
    }
}

Source File: HTTPUtil.java From nettythrift with Apache License 2.0

4 votes

private static void configSocket(Socket socket) throws SocketException {
    /**
     * 设置Socket属性
     */
    // true表示关闭Socket的缓冲,立即发送数据..其默认值为false
    // 若Socket的底层实现不支持TCP_NODELAY选项,则会抛出SocketException
    socket.setTcpNoDelay(true);
    // 表示是否允许重用Socket所绑定的本地地址
    socket.setReuseAddress(true);
    // 表示接收数据时的等待超时时间,单位毫秒..其默认值为0,表示会无限等待,永远不会超时
    // 当通过Socket的输入流读数据时,如果还没有数据,就会等待
    // 超时后会抛出SocketTimeoutException,且抛出该异常后Socket仍然是连接的,可以尝试再次读数据
    socket.setSoTimeout(5000);
    // 表示当执行Socket.close()时,是否立即关闭底层的Socket
    // 这里设置为当Socket关闭后,底层Socket延迟5秒后再关闭,而5秒后所有未发送完的剩余数据也会被丢弃
    // 默认情况下,执行Socket.close()方法,该方法会立即返回,但底层的Socket实际上并不立即关闭
    // 它会延迟一段时间,直到发送完所有剩余的数据,才会真正关闭Socket,断开连接
    // Tips:当程序通过输出流写数据时,仅仅表示程序向网络提交了一批数据,由网络负责输送到接收方
    // Tips:当程序关闭Socket,有可能这批数据还在网络上传输,还未到达接收方
    // Tips:这里所说的"未发送完的剩余数据"就是指这种还在网络上传输,未被接收方接收的数据
    socket.setSoLinger(true, 5);
    // 表示发送数据的缓冲区的大小
    socket.setSendBufferSize(1024);
    // 表示接收数据的缓冲区的大小
    socket.setReceiveBufferSize(1024);
    // 表示对于长时间处于空闲状态(连接的两端没有互相传送数据)的Socket,是否要自动把它关闭,true为是
    // 其默认值为false,表示TCP不会监视连接是否有效,不活动的客户端可能会永久存在下去,而不会注意到服务器已经崩溃
    socket.setKeepAlive(true);
    // 表示是否支持发送一个字节的TCP紧急数据,socket.sendUrgentData(data)用于发送一个字节的TCP紧急数据
    // 其默认为false,即接收方收到紧急数据时不作任何处理,直接将其丢弃..若用户希望发送紧急数据,则应设其为true
    // 设为true后,接收方会把收到的紧急数据与普通数据放在同样的队列中
    socket.setOOBInline(true);
    // 该方法用于设置服务类型,以下代码请求高可靠性和最小延迟传输服务(把0x04与0x10进行位或运算)
    // Socket类用4个整数表示服务类型
    // 0x02:低成本(二进制的倒数第二位为1)
    // 0x04:高可靠性(二进制的倒数第三位为1)
    // 0x08:最高吞吐量(二进制的倒数第四位为1)
    // 0x10:最小延迟(二进制的倒数第五位为1)
    socket.setTrafficClass(0x04 | 0x10);
    // 该方法用于设定连接时间,延迟,带宽的相对重要性(该方法的三个参数表示网络传输数据的3项指标)
    // connectionTime--该参数表示用最少时间建立连接
    // latency---------该参数表示最小延迟
    // bandwidth-------该参数表示最高带宽
    // 可以为这些参数赋予任意整数值,这些整数之间的相对大小就决定了相应参数的相对重要性
    // 如这里设置的就是---最高带宽最重要,其次是最小连接时间,最后是最小延迟
    socket.setPerformancePreferences(2, 1, 3);
}