| // 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_; } |
| |
| // In server-side transfer contexts, a session ID always exists. |
| constexpr uint32_t id() const { return session_id(); } |
| |
| 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 |