Add configurable media-aware managed session reaping

dotnet/src/VoiceCat.Server/Transport/TlsControlConnection.cs

@@ -27,12 +27,12 @@ internal sealed class TlsControlConnection : IAsyncDisposable
     public Task Completion { get; }
     public CancellationToken CancellationToken => lifetime.Token;
 
-    internal TlsControlConnection(Socket socket, TlsSession tls, CancellationToken cancellationToken)
+    internal TlsControlConnection(Socket socket, TlsSession tls, CancellationToken cancellationToken, TimeSpan? handshakeTimeout = null)
     {
         this.socket = socket;
         this.tls = tls;
         lifetime = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
-        lifetime.CancelAfter(TimeSpan.FromSeconds(15));
+        lifetime.CancelAfter(handshakeTimeout ?? TimeSpan.FromSeconds(15));
         Completion = RunAsync();
     }
 
@@ -94,8 +94,8 @@ internal sealed class TlsControlConnection : IAsyncDisposable
                         try { mediaCrypto = new(encryptor, tls.CreateMediaDecryptor()); }
                         catch { encryptor.Dispose(); throw; }
                         mediaReady.SetResult();
+                        lifetime.CancelAfter(Timeout.InfiniteTimeSpan);
                     }
-                    if (tls.IsReady) lifetime.CancelAfter(TimeSpan.FromSeconds(60));
                     while ((count = tls.ReadPlaintext(plaintext)) > 0) Parse(plaintext.AsSpan(0, count));
                     await FlushAsync(sendBuffer, cancellationToken).ConfigureAwait(false);
                     receive = socket.ReceiveAsync(ciphertext, SocketFlags.None, cancellationToken).AsTask();