public SingleInstanceProxy GetProxy(SingleInstanceDelegate @delegate)
{
return SingleInstanceProxy.GetInstance(@delegate);
}
public static SingleInstanceProxy GetInstance(SingleInstanceDelegate app)
{
return new SingleInstanceProxyImpl(app());
}
/// <summary> /// Attempt to instantiate a single instance of the given ISingleInstanceApplication. /// If one already exists, pass the command line arguments to the existing one. /// </summary> /// <param name="app"> /// The method which would be used to retrieve an ISingleInstanceApplication object when instantiating /// the new object. /// </param> /// <remarks> /// Note: When using this method and the SingleInstanceDelegate is null, the method can only be used to determine /// whether the application is already running. /// </remarks> /// <returns><see langword="true" /> if this is the first instance, otherwise <see langword="false" /></returns> public abstract bool InstantiateSingleInstance(SingleInstanceDelegate app);
public override bool InstantiateSingleInstance(SingleInstanceDelegate app)
{
// Get name info
var uniqueName = Assembly.GetEntryAssembly().GetName().Name;
ThrowHelper.IfNullOrEmptyThenThrow(() => uniqueName);
var name = uniqueName + Environment.UserName;
_proxyUri = "ipc://" + name + "/" + ProxyObjectName;
bool isFirstInstance;
try
{
_singleInstanceMutex = new Mutex(true, name, out isFirstInstance);
if (isFirstInstance)
CreateInstanceOfApplication(name, app);
else
{
// Get Commandline args
CommandLineArgs = GetCommandLineArgs(uniqueName);
SendMessageToFirstInstance(CommandLineArgs);
}
}
catch (Exception ex)
{
throw new SingleInstancingException(
"Failed to instantiate a new SingleInstanceService object. See InnerException for more details.",
ex);
}
return isFirstInstance;
}
//private string GetUniqueName()
//{
// var uniqueName = Assembly.GetEntryAssembly().GetName().Name;
// ThrowHelper.IfNullOrEmptyThenThrow(() => uniqueName);
// return uniqueName + Environment.UserName;
// //return name;
//}
private void CreateInstanceOfApplication(string channelName,
SingleInstanceDelegate @delegate)
{
// Create an IPC server channel to listen for SingleInstanceProxy object requests
_ipcChannel = _serviceProxy.CreateServerChannel(channelName);
// Register the channel and get it ready for use
_serviceProxy.RegisterChannel(_ipcChannel);
// Register the service which gets the SingleInstanceProxy object,
// so it can be accessible by IPC client channels
_serviceProxy.RegisterType<SingleInstanceProxy>(ProxyObjectName);
// Attempt to retrieve the enforcer from the delegated method
_proxy = _factory.GetProxy(@delegate);
// Publish the first proxy object so IPC clients
// requesting a proxy would receive a reference to it
_serviceProxy.Marshal(_proxy, ProxyObjectName);
}
