단순 ..

객체 생성 로직에 핸들러를 넣으면 안되는데요.

이거 .. 매우 당당하게 넣어두었어요.

[1] SocketsHttpHandler.ConnectCallback 속성 (System.Net.Http) | Microsoft Learn

예시는 이케 하면 비슷할 것이어요.

var request = new Request(Done);
void Done(state, response) {
	..
}

언어를 가리지 않고 콜백이나 핸들러나 생성기에 넣으면 안대빈다.

public interface ICustomHttpClientService {
	HttpClient CreateClient();
	HttpClient CreateClient(string name);
}

public class CustomHttpClientService : HttpClient, ICustomHttpClientService {
	const int TimeoutSecond = 5;
	private static SocketsHttpHandler SocketHandler = new SocketsHttpHandler() {
		ConnectCallback = ConnectionHandler,
		ConnectTimeout= TimeSpan.FromSeconds(TimeoutSecond),
		ResponseDrainTimeout = TimeSpan.FromSeconds(TimeoutSecond),
		UseCookies = false
	};

	static HttpClientHandler HttpHandler = new HttpClientHandler() {
		ClientCertificateOptions = ClientCertificateOption.Manual,
		ServerCertificateCustomValidationCallback = ServerCertificateCustomValidationHandler,
		UseCookies = false
	};

	static async ValueTask<Stream> ConnectionHandler(SocketsHttpConnectionContext context, CancellationToken cancellationToken) {
		var socket = new Socket(SocketType.Stream, ProtocolType.Tcp) { NoDelay = true };

		try {
			socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
			socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveTime, TimeoutSecond);
			socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveInterval, TimeoutSecond);
			socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveRetryCount, TimeoutSecond);
			await socket.ConnectAsync(context.DnsEndPoint, cancellationToken);

			return new NetworkStream(socket, true);
		} catch {
			socket.Dispose();
			throw;
		}
	}

	static bool ServerCertificateCustomValidationHandler(HttpRequestMessage message, X509Certificate2? certificate, X509Chain? chain, SslPolicyErrors errors) {
		return true;
	}

	public CustomHttpClientService(HttpClient httpClient) : base(SocketsHandler, false) { // single handler problem SocketsHttpHandler or HttpClientHandler.
		httpClient.Timeout = TimeSpan.FromSeconds(TimeoutSecond);
	}

	HttpClient ICustomClientService.CreateClient() {
		return this;
	}

	HttpClient ICustomClientService.CreateClient(string name) {
		return this;
	}
}

SocketsHttpHandler, HttpClientHandler 모두 적용이 안되고 .. 확장된 quic모듈은 이 핸들러가 유효하지도 않음.

C#쪽에서 너무 대충 하는거 아니나요.