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https://github.com/nestriness/cdc-file-transfer.git
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4326e972ac
The tools allow efficient and fast synchronization of large directory trees from a Windows workstation to a Linux target machine. cdc_rsync* support efficient copy of files by using content-defined chunking (CDC) to identify chunks within files that can be reused. asset_stream_manager + cdc_fuse_fs support efficient streaming of a local directory to a remote virtual file system based on FUSE. It also employs CDC to identify and reuse unchanged data chunks.
69 lines
2.6 KiB
C++
69 lines
2.6 KiB
C++
/*
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* Copyright 2022 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ASSET_STREAM_MANAGER_BACKGROUND_SERVICE_IMPL_H_
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#define ASSET_STREAM_MANAGER_BACKGROUND_SERVICE_IMPL_H_
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#include "absl/status/status.h"
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#include "asset_stream_manager/background_service_impl.h"
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#include "asset_stream_manager/session_management_server.h"
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#include "grpcpp/grpcpp.h"
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#include "proto/background_service.grpc.pb.h"
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namespace cdc_ft {
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// Implements a service to manage a background process as a server.
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// The corresponding client is implemented by ProcessManager. The background
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// process in this case is asset_stream_manager. ProcessManager starts the
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// process on demand (e.g. when `ggp instance mount --local-dir` is invoked) and
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// manages its lifetime: It calls GetPid() initially, HealthCheck() periodically
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// to monitor the process, and Exit() on shutdown.
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// This service is owned by SessionManagementServer.
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class BackgroundServiceImpl final
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: public backgroundservice::BackgroundService::Service {
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public:
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using ExitRequest = backgroundservice::ExitRequest;
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using ExitResponse = backgroundservice::ExitResponse;
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using GetPidRequest = backgroundservice::GetPidRequest;
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using GetPidResponse = backgroundservice::GetPidResponse;
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using EmptyProto = google::protobuf::Empty;
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BackgroundServiceImpl();
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~BackgroundServiceImpl();
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// Exit callback gets called from the Exit() RPC.
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using ExitCallback = std::function<absl::Status()>;
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void SetExitCallback(ExitCallback exit_callback);
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grpc::Status Exit(grpc::ServerContext* context, const ExitRequest* request,
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ExitResponse* response) override;
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grpc::Status GetPid(grpc::ServerContext* context,
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const GetPidRequest* request,
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GetPidResponse* response) override;
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grpc::Status HealthCheck(grpc::ServerContext* context,
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const EmptyProto* request,
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EmptyProto* response) override;
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private:
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ExitCallback exit_callback_;
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};
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} // namespace cdc_ft
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#endif // ASSET_STREAM_MANAGER_BACKGROUND_SERVICE_IMPL_H_
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