private void GetConfig()
{
config = ConfigurationManager.GetSection(_configSectionName) as SocketServerConfig;
if (config == null)
{
if (log.IsWarnEnabled)
log.Warn("No Socket Server Config Found. Using defaults.");
config = new SocketServerConfig();
}
useNetworkOrder = config.UseNetworkOrder;
initialMessageSize = config.InitialMessageSize;
maximumMessageSize = config.MaximumMessageSize;
discardTooBigMessages = config.DiscardTooBigMessages;
maximumSockets = (config.MaximumOpenSockets == 0 ? Int32.MaxValue : config.MaximumOpenSockets);
if (log.IsInfoEnabled)
{
log.InfoFormat("Maximum Message size is {0}. {1}.", maximumMessageSize.ToString("N0"),
(discardTooBigMessages) ? "Discarding too big messages" : "Immediately disposing too big message buffers");
}
if (config.SyncThreads > 0)
{
SyncThreads = config.SyncThreads;
}
else
{
SyncThreads = Environment.ProcessorCount * Dispatcher.ThreadsPerCpu;
}
if (config.OnewayThreads > 0)
{
OnewayThreads = config.OnewayThreads;
}
else
{
OnewayThreads = Environment.ProcessorCount * Dispatcher.ThreadsPerCpu;
}
XmlSerializerSectionHandler.RegisterReloadNotification(typeof(SocketServerConfig), new EventHandler(ReloadConfig));
}
public void ReloadConfig(object sender, EventArgs args)
{
if (log.IsInfoEnabled)
log.Info("Reloading config");
connectionWatcher.Change(Timeout.Infinite, Timeout.Infinite);
SocketServerConfig newConfig = ConfigurationManager.GetSection(_configSectionName) as SocketServerConfig;
if (newConfig == null)
{
if (log.IsWarnEnabled)
log.Warn("No Socket Server Config Found. Using defaults.");
newConfig = new SocketServerConfig();
}
maximumMessageSize = newConfig.MaximumMessageSize;
discardTooBigMessages = newConfig.DiscardTooBigMessages;
connectionCheckInterval = newConfig.ConnectionCheckIntervalSeconds;
useNetworkOrder = newConfig.UseNetworkOrder;
maximumSockets = (newConfig.MaximumOpenSockets == 0 ? Int32.MaxValue : newConfig.MaximumOpenSockets);
int bufferInitMsgSize = newConfig.InitialMessageSize;
int bufferPoolReuses = newConfig.BufferPoolReuses;
int connectionStateReuses = newConfig.ConnectionStateReuses;
int currentWorker, currentCompletion, oldWorker, oldCompletion;
ThreadPool.GetAvailableThreads(out currentWorker, out currentCompletion);
oldWorker = currentWorker;
oldCompletion = currentCompletion;
if (config.MaximumWorkerThreads > 0) currentWorker = config.MaximumWorkerThreads;
if (config.MaximumCompletionPortThreads > 0) currentCompletion = config.MaximumCompletionPortThreads;
bool maxSet = ThreadPool.SetMaxThreads(currentWorker, currentCompletion);
if (config.MaximumWorkerThreads > 0 || config.MaximumCompletionPortThreads > 0)
{
if (maxSet == false)
{
if (log.IsWarnEnabled)
{
log.WarnFormat("FAILED to change max ThreadPool threads from ({0}worker/{1}completion) to ({2}worker/{3}completion)", oldWorker, oldCompletion, currentWorker, currentCompletion);
}
}
else
{
if (log.IsInfoEnabled) log.InfoFormat("Successfully changed max ThreadPool threads from ({0}worker/{1}completion) to ({2}worker/{3}completion)", oldWorker, oldCompletion, currentWorker, currentCompletion);
}
}
Interlocked.Exchange(ref connectionCheckInterval, newConfig.ConnectionCheckIntervalSeconds * 1000);
if (log.IsInfoEnabled)
{
log.InfoFormat("Setting default msg size to {0}. Setting connection check interval to {1} ms.", bufferInitMsgSize, connectionCheckInterval);
log.InfoFormat("Maximum Message size is {0}. {1}.", maximumMessageSize.ToString("N0"),
(discardTooBigMessages) ? "Discarding too big messages" : "Immediately disposing too big message buffers");
}
bufferPool.InitialBufferSize = bufferInitMsgSize;
bufferPool.BufferReuses = bufferPoolReuses;
connectionStatePool.MaxItemReuses = connectionStateReuses;
connectionWatcher.Change(connectionCheckInterval, connectionCheckInterval);
int newOnewayThreads =
(newConfig.OnewayThreads == 0 ? (Environment.ProcessorCount * Dispatcher.ThreadsPerCpu) : newConfig.OnewayThreads);
if (newOnewayThreads != OnewayThreads)
{
try
{
if (log.IsInfoEnabled)
log.InfoFormat("Changing number of oneway threads from {0} to {1}.", OnewayThreads, newOnewayThreads);
Dispatcher oldOnewayDispatcher = OnewayDispatcher;
DispatcherQueue oldOnewayQueue = OnewayMessageQueue;
Dispatcher newOnewayDispatcher = new Dispatcher(newOnewayThreads, ThreadPriority.Normal, true, "Socket Server OneWay:" + portNumber.ToString());
DispatcherQueue newOnewayQueue = new DispatcherQueue("Socket Server " + portNumber.ToString() + " one way", newOnewayDispatcher, TaskExecutionPolicy.ConstrainQueueDepthThrottleExecution, newConfig.OnewayQueueDepth);
Interlocked.Exchange<Port<ProcessState>>(ref OnewayMessagePort, new Port<ProcessState>());
Arbiter.Activate(newOnewayQueue,
Arbiter.Receive<ProcessState>(true,
OnewayMessagePort, delegate(ProcessState state) { ProcessCall(state); }));
OnewayMessageQueue = newOnewayQueue;
OnewayDispatcher = newOnewayDispatcher;
oldOnewayDispatcher.Dispose();
OnewayThreads = newOnewayThreads;
}
catch (Exception ex)
{
if (log.IsErrorEnabled)
log.ErrorFormat("Socket Server Exception changing number of sync threads: {0}", ex);
}
}
int newSyncThreads = (newConfig.SyncThreads == 0 ?
(Environment.ProcessorCount * Dispatcher.ThreadsPerCpu) : newConfig.SyncThreads);
if (newSyncThreads != SyncThreads)
{
try
{
if (log.IsInfoEnabled)
log.InfoFormat("Changing number of sync threads from {0} to {1}", SyncThreads, newSyncThreads);
Dispatcher oldSyncDispatcher = SyncDispatcher;
DispatcherQueue oldSyncQueue = SyncMessageQueue;
Dispatcher newSyncDispatcher = new Dispatcher(newSyncThreads, ThreadPriority.AboveNormal, true, "Socket Server OneWay:" + portNumber.ToString());
DispatcherQueue newSyncQueue = new DispatcherQueue("Socket Server " + portNumber.ToString() + " one way", newSyncDispatcher, TaskExecutionPolicy.ConstrainQueueDepthThrottleExecution, newConfig.SyncQueueDepth);
Interlocked.Exchange<Port<ProcessState>>(ref SyncMessagePort, new Port<ProcessState>());
Arbiter.Activate(newSyncQueue,
Arbiter.Receive<ProcessState>(true,
SyncMessagePort, delegate(ProcessState state) { ProcessCall(state); }));
SyncMessageQueue = newSyncQueue;
SyncDispatcher = newSyncDispatcher;
oldSyncDispatcher.Dispose();
SyncThreads = newSyncThreads;
}
catch (Exception ex)
{
if (log.IsErrorEnabled)
log.ErrorFormat("Socket Server Exception changing number of sync threads: {0}", ex);
}
}
if (OnewayMessageQueue != null)
{
OnewayMessageQueue.MaximumQueueDepth = newConfig.OnewayQueueDepth;
}
if (SyncMessageQueue != null)
{
SyncMessageQueue.MaximumQueueDepth = newConfig.SyncQueueDepth;
}
config = newConfig;
}