From 89cd9a2eef62a954b9084ace45f79ebce549cf4b Mon Sep 17 00:00:00 2001
From: Craig Tiller <ctiller@google.com>
Date: Wed, 11 Dec 2024 20:38:06 -0800
Subject: [PATCH] api-sketch

---
 .../transport/chaotic_good/frame_transport.h  | 34 ++++++++++++++++
 .../chaotic_good/tcp_frame_transport.h        | 39 +++++++++++++++++++
 2 files changed, 73 insertions(+)
 create mode 100644 src/core/ext/transport/chaotic_good/frame_transport.h
 create mode 100644 src/core/ext/transport/chaotic_good/tcp_frame_transport.h

diff --git a/src/core/ext/transport/chaotic_good/frame_transport.h b/src/core/ext/transport/chaotic_good/frame_transport.h
new file mode 100644
index 0000000000000..df369ea9d3d8f
--- /dev/null
+++ b/src/core/ext/transport/chaotic_good/frame_transport.h
@@ -0,0 +1,34 @@
+// Copyright 2024 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_FRAME_TRANSPORT_H
+#define GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_FRAME_TRANSPORT_H
+
+#include "src/core/ext/transport/chaotic_good/frame.h"
+#include "src/core/lib/promise/mpsc.h"
+#include "src/core/lib/promise/party.h"
+
+namespace grpc_core {
+namespace chaotic_good {
+
+class FrameTransport {
+ public:
+  virtual void StartReading(Party* party, MpscSender<Frame> frames) = 0;
+  virtual void StartWriting(Party* party, MpscReceiver<Frame> frames) = 0;
+};
+
+}  // namespace chaotic_good
+}  // namespace grpc_core
+
+#endif
diff --git a/src/core/ext/transport/chaotic_good/tcp_frame_transport.h b/src/core/ext/transport/chaotic_good/tcp_frame_transport.h
new file mode 100644
index 0000000000000..e5b8a1d94f541
--- /dev/null
+++ b/src/core/ext/transport/chaotic_good/tcp_frame_transport.h
@@ -0,0 +1,39 @@
+// Copyright 2024 gRPC authors.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_TCP_FRAME_TRANSPORT_H
+#define GRPC_SRC_CORE_EXT_TRANSPORT_CHAOTIC_GOOD_TCP_FRAME_TRANSPORT_H
+
+#include <vector>
+
+#include "pending_connection.h"
+#include "src/core/ext/transport/chaotic_good/frame_transport.h"
+
+namespace grpc_core {
+namespace chaotic_good {
+
+class TcpFrameTransport final : public FrameTransport {
+ public:
+  TcpFrameTransport(PromiseEndpoint control_endpoint,
+                    std::vector<PendingConnection> pending_data_endpoints);
+
+ private:
+  Poll<StatusFlag> PollWrite(Frame& frame) override;
+  Poll<ValueOrFailure<Frame>> PollRead() override;
+};
+
+}  // namespace chaotic_good
+}  // namespace grpc_core
+
+#endif