Crafter.Debug/interfaces/Crafter.Debug.Cli-Quic.cppm
Jorijn van der Graaf f8024b7a43
feat(cli): reach instances over QUIC
crafter-debug had a placeholder transport that reported every instance
unreachable. Cli::ConnectQuic dials 127.0.0.1 at the port in the
discovery record on the first call, keeps the connection for the next,
and dials again after one is lost. Each call opens a stream, sends the
request with a FIN, and reads lines: one with a result or an error is
the reply, anything before it a stream line for onLine, which runs on
the calling thread so a slow terminal never stalls msquic's worker.
Past the deadline the stream is aborted and the call times out.

The handshake gives up after 3 s, and keep-alives every 2 s hold a
quiet follow or a long wait open under the 10 s idle timeout. main
starts a pool with one worker, which Network reports some failures on,
and ends with _Exit once Run has closed its connections, since msquic's
teardown at exit waits on connections.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-11-01 03:07:09 +01:00

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// SPDX-License-Identifier: LGPL-3.0-only
// SPDX-FileCopyrightText: Copyright (C) 2026 Catcrafts®
// The client's transport: a Connection over QUIC to an instance's port on
// 127.0.0.1, one stream per request. The library's :Transport describes the
// wire.
export module Crafter.Debug.Cli:Quic;
import std;
import Crafter.Debug.Core;
import :Client;
export namespace Crafter::Debug::Cli {
// Connects on the first call and keeps the connection for later ones,
// reconnecting after one is lost. Needs Crafter.Thread's pool running.
std::unique_ptr<Connection> ConnectQuic(const InstanceRecord& instance);
}