/// <summary>
/// Stops the service immediately, terminating any user activity.
/// </summary>
public void Stop()
{
lock (syncLock)
{
if (state == ServiceState.Stopped)
{
return;
}
SysLog.LogInformation("NeonSwitch Stop");
SysLog.Flush();
base.Close();
state = ServiceState.Stopped;
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (router != null)
{
router.Stop();
router = null;
}
}
}
/// <summary>
/// Immediately terminates the processing of all client messages.
/// </summary>
public void Stop()
{
if (router == null)
{
return;
}
using (TimedLock.Lock(syncLock))
{
if (packageFolder != null)
{
packageFolder.Dispose();
packageFolder = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (cluster != null)
{
cluster.Stop();
cluster = null;
}
if (router != null)
{
router.Dispatcher.RemoveTarget(this);
router = null;
}
}
}
/// <summary>
/// Immediately terminates the processing of all client messages.
/// </summary>
public void Stop()
{
if (!isRunning)
{
return;
}
using (TimedLock.Lock(syncLock))
{
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (httpServer != null)
{
httpServer.Stop();
httpServer = null;
}
router = null;
isRunning = false;
}
}
private void FormServiceHost_Closing(object sender, System.ComponentModel.CancelEventArgs args)
{
switch (service.State)
{
case ServiceState.Starting:
case ServiceState.Running:
case ServiceState.Shutdown:
try
{
service.Stop();
}
catch (Exception e)
{
SysLog.LogException(e);
}
break;
}
SysLog.LogProvider = null;
if (timer != null)
{
timer.Dispose();
timer = null;
}
Environment.Exit(0);
}
/// <summary>
/// Releases all resources associated with the instance.
/// </summary>
public void Close()
{
using (TimedLock.Lock(syncLock))
{
if (syncLock == null)
{
return;
}
router.Dispatcher.RemoveTarget(this);
if (packageFolder != null)
{
packageFolder.Dispose();
packageFolder = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
router = null;
syncLock = null;
}
}
public void GatedTimer_Basic()
{
count = 0;
state = null;
wait = 1000;
dispose = false;
change = 0;
timer = new GatedTimer(new TimerCallback(OnTimer), 10, TimeSpan.Zero, TimeSpan.FromMilliseconds(100));
Thread.Sleep(1000);
timer.Dispose();
Assert.AreEqual(1, count);
Assert.AreEqual(10, (int)state);
count = 0;
state = null;
wait = 0;
dispose = false;
change = 0;
timer = new GatedTimer(new TimerCallback(OnTimer), 10, TimeSpan.Zero, TimeSpan.FromMilliseconds(100));
Thread.Sleep(1000);
timer.Dispose();
Assert.AreEqual(10, count);
Assert.AreEqual(10, (int)state);
}
/// <summary>
/// Stops the server if it's currently running.
/// </summary>
public void Stop()
{
using (TimedLock.Lock(this))
{
if (sock != null)
{
sock.Close();
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
devices = null;
deviceMap = null;
accounts = null;
LogEvent = null;
AuthenticateEvent = null;
GetNasInfoEvent = null;
isRunning = false;
}
Thread.Sleep(1000); // Give any pending authentication event calls a chance
// to unwind.
}
/// <summary>
/// Stops the agent if it is running.
/// </summary>
public void Stop()
{
if (queueTimer != null)
{
queueTimer.Dispose();
queueTimer = null;
}
}
/// <summary>
/// Removes a connection from the internal collection to
/// detect timeouts.
/// </summary>
/// <param name="con">The connections.</param>
internal static void RemoveConnection(HttpConnection con)
{
lock (syncLock)
{
if (sweeping)
{
return; // This is handled below by the sweep handler
}
clientCons.Remove(con);
// If that was the last connection then stop the sweep timer.
if (clientCons.Count == 0 && sweepTimer != null)
{
sweepTimer.Dispose();
sweepTimer = null;
}
}
}
/// <summary>
/// Stops the server, removing it from the cluster.
/// </summary>
/// <remarks>
/// <note>
/// It is not an error to call this method then the instance has already been closed.
/// </note>
/// </remarks>
public void Close()
{
lock (syncLock)
{
if (closePending || socket == null)
{
return;
}
var packet = GetMessageBytes(UdpBroadcastMessageType.ServerUnregister);
foreach (var server in settings.Servers)
{
if (!PauseNetwork)
{
socket.SendTo(packet, server);
}
}
closePending = true;
}
// Sleep for a couple seconds so that any broadcast messages in transit
// will still be retransmitted during the time it will take for the
// other servers in the cluster to decide on a new master.
Thread.Sleep(2000);
socket.Close();
socket = null;
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
servers.Clear();
clients.Clear();
GC.SuppressFinalize(this);
}
/// <summary>
/// Stops the cache if it is running.
/// </summary>
public void Stop()
{
lock (syncLock)
{
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
}
}
/// <summary>
/// Closes the instance, removing it from the broadcast group.
/// </summary>
/// <remarks>
/// <note>
/// It is not an error to call this method then the instance has already been closed.
/// </note>
/// </remarks>
public void Close()
{
lock (syncLock)
{
if (socket != null)
{
var packet = GetMessageBytes(UdpBroadcastMessageType.ClientUnregister, settings.BroadcastGroup);
foreach (var server in servers)
{
if (!PauseNetwork)
{
try
{
socket.SendTo(packet, server);
}
catch (Exception e)
{
SysLog.LogException(e);
}
}
}
socket.Close();
socket = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
}
GC.SuppressFinalize(this);
}
/// <summary>
/// Immediately terminates the processing of all client messages.
/// </summary>
public void Stop()
{
if (!isRunning)
{
return;
}
lock (syncLock)
{
router.Dispatcher.RemoveTarget(this);
if (clusterClient != null)
{
clusterClient.Close();
}
if (clusterServer != null)
{
clusterServer.Close();
}
if (fixCache != null)
{
fixCache.Stop();
}
if (ipGeocoder != null)
{
ipGeocoder.Stop();
}
if (archiver != null)
{
archiver.Stop();
archiver = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
isRunning = false;
}
}
private void OnTimer(object state)
{
this.count++;
this.state = state;
Thread.Sleep(wait);
if (dispose)
{
timer.Dispose();
}
if (change > 0)
{
timer.Change(TimeSpan.Zero, TimeSpan.FromMilliseconds(change));
}
}
/// <summary>
/// Releases any important resources associated with the instance.
/// </summary>
/// <param name="disposing">Pass <c>true</c> if the instance is being disposed as opposed to being finalized.</param>
protected void Dispose(bool disposing)
{
if (disposing)
{
lock (cache)
{
if (cacheTimer != null)
{
cacheTimer.Dispose();
cacheTimer = null;
}
}
GC.SuppressFinalize(this);
}
cacheTimer = null;
}
/// <summary>
/// Handles timeout processing.
/// </summary>
/// <param name="state">Not used.</param>
private static void OnBkTimer(object state)
{
var delKeys = new List <int>();
var now = SysTime.Now;
lock (syncLock)
{
// Walk the list of requests, looking for those that have timed out
// and adding them to the deleted list.
foreach (int key in requests.Keys)
{
var arDns = requests[key];
if (now >= arDns.TTD)
{
delKeys.Add(key);
}
}
// Signal a timeout exception for each deleted request and
// remove them from the requests table.
for (int i = 0; i < delKeys.Count; i++)
{
var key = delKeys[i];
var arDns = requests[key];
requests.Remove(key);
arDns.Notify(new TimeoutException());
}
// Kill the timer if there are no outstanding requests and the
// class has been idle for a while.
if (requests.Count == 0 && now - lastQueryTime >= maxIdleTime)
{
bkTimer.Dispose();
bkTimer = null;
}
}
}
/// <summary>
/// Closes the client, releasing all resources.
/// </summary>
public void Close()
{
using (TimedLock.Lock(this))
{
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (ports != null)
{
foreach (RadiusClientPort port in ports)
{
port.Close();
}
ports = null;
}
}
}
/// <summary>
/// Closes the authenticator instance if it's open.
/// </summary>
public void Close()
{
using (TimedLock.Lock(this))
{
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (router != null)
{
router.Dispatcher.RemoveTarget(this);
router = null;
}
cache = null;
publicKey = null;
isOpen = false;
}
}
private void MainForm_FormClosed(object sender, FormClosedEventArgs args)
{
timer.Dispose();
stopButton_Click(null, null);
}
/// <summary>
/// Associates the service handler with a message router by registering
/// the necessary application message handlers.
/// </summary>
/// <param name="router">The message router.</param>
/// <param name="keyPrefix">The configuration key prefix or (null to use <b>LillTek.Datacenter.AppStore</b>).</param>
/// <param name="perfCounters">The application's performance counter set (or <c>null</c>).</param>
/// <param name="perfPrefix">The string to prefix any performance counter names (or <c>null</c>).</param>
/// <remarks>
/// <para>
/// Applications that expose performance counters will pass a non-<c>null</c> <b>perfCounters</b>
/// instance. The service handler should add any counters it implements to this set.
/// If <paramref name="perfPrefix" /> is not <c>null</c> then any counters added should prefix their
/// names with this parameter.
/// </para>
/// </remarks>
public void Start(MsgRouter router, string keyPrefix, PerfCounterSet perfCounters, string perfPrefix)
{
var config = new Config(keyPrefix != null ? keyPrefix : ConfigPrefix);
// Make sure the syncLock is set early.
this.syncLock = router.SyncRoot;
// Make sure that the LillTek.Datacenter message types have been
// registered with the LillTek.Messaging subsystem.
LillTek.Datacenter.Global.RegisterMsgTypes();
// Verify the router parameter
if (router == null)
{
throw new ArgumentNullException("router", "Router cannot be null.");
}
if (this.router != null)
{
throw new InvalidOperationException("This handler has already been started.");
}
// General initialization
mode = config.Get <AppStoreMode>("Mode", AppStoreMode.Primary);
primaryBroadcast = config.Get("PrimaryBroadcast", true);
packageScanInterval = config.Get("PackageScanInterval", TimeSpan.FromMinutes(5));
primaryPollInterval = config.Get("PrimaryPollInterval", TimeSpan.FromMinutes(15));
primaryPollTime = SysTime.Now;
onTransfer = new AsyncCallback(OnTransfer);
downloads = new Dictionary <AppRef, PendingDownload>();
forceSync = false;
cDownloads = 0;
netFail = false;
// Initialize the package folder
packageFolder = new AppPackageFolder(syncLock, config.Get("PackageFolder", "Packages"));
packageFolder.ChangeEvent += new MethodArg1Invoker(OnPackageFolderChange);
packageScanTime = SysTime.Now;
// Initialize the performance counters
startTime = DateTime.UtcNow;
perf = new Perf(perfCounters, perfPrefix);
// Crank up the background task timer.
bkTimer = new GatedTimer(new TimerCallback(OnBkTimer), null, config.Get("BkTaskInterval", TimeSpan.FromSeconds(1)));
try
{
// Initialize the router
this.router = router;
// Join the cluster, initializing this instance's state.
cluster = new ClusterMember(router, ClusterMemberSettings.LoadConfig(config.KeyPrefix + "Cluster"));
cluster["Mode"] = this.mode.ToString();
cluster.ClusterStatusUpdate += new ClusterMemberEventHandler(OnClusterStatusUpdate);
cluster.Start();
// Rather than calling cluster.JoinWait() which could take a really long
// time, I'm going to sleep for two seconds. There are three scenarios:
//
// 1. This is the first Application Store instance.
//
// 2. Other instances are running but they haven't
// organized into a cluster.
//
// 3. A cluster is already running.
//
// If #1 is the current situation, then it will take a very long time
// for JoinWait() to return because we have to go through the entire
// missed master broadcast and election periods. Since we're the only
// instance, we could have started serving content well before this.
//
// #2 won't be very common but if it is the case, the worst thing
// that will happen is that it will take a while to discover the
// primary store.
//
// If #3 is the case, then two seconds should be long enough for the
// master to send the instance a cluster update.
Thread.Sleep(2000);
// Register the message handlers via the cluster member
// so that the endpoint used will be the member's instanceEP.
cluster.AddTarget(this, AppStoreHandler.DynamicScope);
}
catch
{
if (packageFolder != null)
{
packageFolder.Dispose();
packageFolder = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
router.Dispatcher.RemoveTarget(this);
if (cluster != null)
{
cluster.Stop();
cluster = null;
}
throw;
}
}
/// <summary>
/// Releases all resources associated with the instance.
/// </summary>
public void Close()
{
using (TimedLock.Lock(syncLock))
{
if (!isOpen)
{
return;
}
// If we're running in UDP mode, then send a couple deregister messages
// for all host entries to each known name server. This will ensure that
// the DNS updated quickly when servers are shut down gracefully. Note
// that I'm going to send duplicate messages to each server just to be
// on the safe side.
if (settings.Mode == DynDnsMode.Udp)
{
for (int i = 0; i < 2; i++)
{
DynDnsMessage message;
byte[] packet;
foreach (var entry in hosts.Values)
{
message = new DynDnsMessage(DynDnsMessageFlag.OpUnregister, entry);
packet = message.ToArray(settings.SharedKey);
foreach (var nameServer in settings.NameServers)
{
socket.SendTo(packet, nameServer);
}
Thread.Sleep(500);
}
}
}
// Shut down the client.
if (cluster != null)
{
cluster.Stop();
cluster = null;
}
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (socket != null)
{
socket.Close();
socket = null;
}
router = null;
isOpen = false;
}
}
/// <summary>
/// Starts the service, associating it with an <see cref="IServiceHost" /> instance.
/// </summary>
/// <param name="serviceHost">The service user interface.</param>
/// <param name="args">Command line arguments.</param>
public void Start(IServiceHost serviceHost, string[] args)
{
lock (syncLock)
{
if (router != null)
{
return; // Already started
}
// Global initialization
startTime = DateTime.UtcNow;
NetTrace.Start();
CoreApp.InstallPerfCounters();
// Service initialization
this.serviceHost = serviceHost;
try
{
SysLog.LogInformation("NeonSwitch v{0} Start", Helper.GetVersionString());
router = new LeafRouter();
router.Start();
state = ServiceState.Running;
bkTimer = new GatedTimer(OnBkTimer, null, CoreApp.BkTaskInterval);
SpeechEngine.Start(SpeechEngineSettings.LoadConfig("NeonSwitch.Speech"));
#if DEBUG
// $todo(jeff.lill): Delete this.
SwitchTest.Test();
#endif
// Indicate that the switch core service is open for business. NeonSwitch
// application instance loaders will spin, waiting for this to be set before
// calling the application's main function.
Switch.SetGlobal(SwitchGlobal.NeonSwitchReady, "true");
}
catch (Exception e)
{
SpeechEngine.Stop();
if (bkTimer != null)
{
bkTimer.Dispose();
bkTimer = null;
}
if (router != null)
{
router.Stop();
router = null;
}
SysLog.LogException(e);
throw;
}
}
}
