Examples with VirtualChannel hudson.remoting.VirtualChannel used on opensource projects

Example 6 with VirtualChannel

use of hudson.remoting.VirtualChannel in project hudson-2.x by hudson.

the class ConnectionActivityMonitor method execute.

protected void execute(TaskListener listener) throws IOException, InterruptedException {
    if (!enabled)
        return;
    long now = System.currentTimeMillis();
    for (Computer c : Hudson.getInstance().getComputers()) {
        VirtualChannel ch = c.getChannel();
        if (ch instanceof Channel) {
            Channel channel = (Channel) ch;
            if (now - channel.getLastHeard() > TIME_TILL_PING) {
                // haven't heard from this slave for a while.
                Long lastPing = (Long) channel.getProperty(ConnectionActivityMonitor.class);
                if (lastPing != null && now - lastPing > TIMEOUT) {
                    LOGGER.info("Repeated ping attempts failed on " + c.getName() + ". Disconnecting");
                    c.disconnect(OfflineCause.create(Messages._ConnectionActivityMonitor_OfflineCause()));
                } else {
                    // send a ping. if we receive a reply, it will be reflected in the next getLastHeard() call.
                    channel.callAsync(PING_COMMAND);
                    if (lastPing == null)
                        channel.setProperty(ConnectionActivityMonitor.class, now);
                }
            } else {
                // we are receiving data nicely
                channel.setProperty(ConnectionActivityMonitor.class, null);
            }
        }
    }
}

Example 7 with VirtualChannel

use of hudson.remoting.VirtualChannel in project hudson-2.x by hudson.

the class SU method execute.

/**
     * Starts a new priviledge-escalated environment, execute a closure, and shut it down.
     */
public static <V, T extends Throwable> V execute(TaskListener listener, String rootUsername, String rootPassword, final Callable<V, T> closure) throws T, IOException, InterruptedException {
    VirtualChannel ch = start(listener, rootUsername, rootPassword);
    try {
        return ch.call(closure);
    } finally {
        ch.close();
        // give some time for orderly shutdown, but don't block forever.
        ch.join(3000);
    }
}

Example 8 with VirtualChannel

use of hudson.remoting.VirtualChannel in project hudson-2.x by hudson.

the class Slave method getClockDifference.

public ClockDifference getClockDifference() throws IOException, InterruptedException {
    VirtualChannel channel = getChannel();
    if (channel == null)
        throw new IOException(getNodeName() + " is offline");
    long startTime = System.currentTimeMillis();
    long slaveTime = channel.call(new GetSystemTime());
    long endTime = System.currentTimeMillis();
    return new ClockDifference((startTime + endTime) / 2 - slaveTime);
}

Example 9 with VirtualChannel

use of hudson.remoting.VirtualChannel in project hudson-2.x by hudson.

the class Computer method doDumpExportTable.

/**
     * Dumps the contents of the export table.
     */
public void doDumpExportTable(StaplerRequest req, StaplerResponse rsp) throws IOException, ServletException, InterruptedException {
    // this is a debug probe and may expose sensitive information
    checkPermission(Hudson.ADMINISTER);
    rsp.setContentType("text/plain");
    PrintWriter w = new PrintWriter(rsp.getCompressedWriter(req));
    VirtualChannel vc = getChannel();
    if (vc instanceof Channel) {
        w.println("Master to slave");
        ((Channel) vc).dumpExportTable(w);
        // flush here once so that even if the dump from the slave fails, the client gets some useful info
        w.flush();
        w.println("\n\n\nSlave to master");
        w.print(vc.call(new DumpExportTableTask()));
    } else {
        w.println(Messages.Computer_BadChannel());
    }
    w.close();
}

Example 10 with VirtualChannel

use of hudson.remoting.VirtualChannel in project hudson-2.x by hudson.

the class FilePath method untarFrom.

/**
     * Reads the given InputStream as a tar file and extracts it into this directory.
     *
     * @param _in
     *      The stream will be closed by this method after it's fully read.
     * @param compression
     *      The compression method in use.
     * @since 1.292
     */
public void untarFrom(InputStream _in, final TarCompression compression) throws IOException, InterruptedException {
    try {
        final InputStream in = new RemoteInputStream(_in);
        act(new FileCallable<Void>() {

            public Void invoke(File dir, VirtualChannel channel) throws IOException {
                readFromTar("input stream", dir, compression.extract(in));
                return null;
            }

            private static final long serialVersionUID = 1L;
        });
    } finally {
        IOUtils.closeQuietly(_in);
    }
}