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// Copyright 2022 The Pigweed 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
//
// https://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.
#pragma once
#include "pw_assert/assert.h"
#include "pw_containers/intrusive_list.h"
#include "pw_result/result.h"
#include "pw_rpc/raw/server_reader_writer.h"
#include "pw_transfer/handler.h"
#include "pw_transfer/internal/context.h"
namespace pw::transfer::internal {
// Transfer context for use within the transfer service (server-side). Stores a
// pointer to a transfer handler when active to stream the transfer data.
class ServerContext final : public Context {
public:
constexpr ServerContext() : handler_(nullptr) {}
// Sets the handler. The handler isn't set by Context::Initialize() since
// ClientContexts don't track it.
void set_handler(Handler& handler) { handler_ = &handler; }
// Returns the pointer to the current handler.
const Handler* handler() { return handler_; }
private:
// Ends the transfer with the given status, calling the handler's Finalize
// method. No chunks are sent.
//
// Returns DATA_LOSS if the finalize call fails.
//
// Precondition: Transfer context is active.
Status FinalCleanup(Status status) override;
Handler* handler_;
};
} // namespace pw::transfer::internal
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