// This method gets called by the runtime. Use this method to add services to the container.
public void ConfigureServices(IServiceCollection services)
{
services.AddControllersWithViews();
services.AddSingleton(provider => new Lazy <ThreadPoolLogger>(() =>
{
var threadPoolLogger = new ThreadPoolLogger();
threadPoolLogger.Start();
return(threadPoolLogger);
}));
var rootUri = Configuration.GetValue <string>("RootUri") ?? throw new ArgumentNullException("RootUri");
services.AddHttpClient("someapi", client => { client.BaseAddress = new Uri(rootUri); });
}
//Asynchronous request handler.
public async Task WebSocketRequestHandler(ThreadPoolLogger threadPoolLogger, WebSocket webSocket)
{
JsonSerializer js = new JsonSerializer();
/*We define a certain constant which will represent
* size of received data. It is established by us and
* we can set any value. We know that in this case the size of the sent
* data is very small.
*/
const int maxMessageSize = 1024;
//Buffer for received bits.
var receivedDataBuffer = new ArraySegment <Byte>(new Byte[maxMessageSize]);
var cancellationToken = new CancellationToken();
//Checks WebSocket state.
while (webSocket.State == WebSocketState.Open)
{
using (MemoryStream ms = new MemoryStream())
using (StreamWriter sm = new StreamWriter(ms))
using (JsonWriter jw = new JsonTextWriter(sm))
{
var stats = await threadPoolLogger.SourceBlock.ReceiveAsync(cancellationToken);
stats.Error = threadPoolLogger.Error;
js.Serialize(jw, stats);
jw.Flush();
//Sends data back.
await webSocket.SendAsync(new ArraySegment <byte>(ms.ToArray()),
WebSocketMessageType.Text, true, cancellationToken).ConfigureAwait(false);
await Task.Delay(100).ConfigureAwait(false);
}
}
}
