public virtual async Task StartHostingAsync()
{
// check if we can act as an injection host
if (!Loader.RuntimeLoadAvailable && !_forceCanInject)
{
throw new InvalidOperationException(
"The current platform does not support loading assemblies at runtime.");
}
// start publishing host availability if we have a service definition
if (_servicePublisher != null)
{
await _servicePublisher.Publish();
}
// wire up our client connected/disconnected methods
_messageHub.ClientConnected.Subscribe(ClientConnected);
_messageHub.ClientDisconnected.Subscribe(ClientDisconnected);
// funnel any messages containing assemblies through the pipeline
_messageHub
.AllMessages
.OfType <IMessageWithAssemblyBytes>()
.Where(ShouldLoadAssembly)
.Select(msg =>
{
var proxy = _messageHub.ProxyForGuid(msg.FromGuid);
try
{
return(new { Assembly = BytesToAssembly(msg.AssemblyBytes), Sender = proxy });
}
catch (Exception e)
{
this.Log()
.Error(String.Format("Couldn't load assembly named {0} from {1}: '{2}'", msg.AssemblyName,
proxy, e.Message));
}
return(null);
})
.Where(a => a != null)
.Subscribe(x => ProcessNewAssembly(x.Assembly, x.Sender))
.DisposeWith(_disposables);
// start listening
await _messageHub.StartListeningAsync(ServicePort);
IsListening = true;
}