mirror of
https://github.com/nestriness/cdc-file-transfer.git
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a138fb55c4
Makes ServerSocket multi-platform, mainly by working around some small API differences. The code is largely the same, there should be no differences on Linux. Also moves WSAStartup() and WSACleanup() up to the Socket level as static methods because it's used by both ClientSocket and ServerSocket, and because it doesn't make sense to do that in the socket class as that would prevent one from using several sockets.
125 lines
3.6 KiB
C++
125 lines
3.6 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 CDC_RSYNC_SERVER_CDC_RSYNC_SERVER_H_
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#define CDC_RSYNC_SERVER_CDC_RSYNC_SERVER_H_
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#include <memory>
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#include <string>
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#include <vector>
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#include "absl/status/status.h"
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#include "cdc_rsync/base/message_pump.h"
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#include "cdc_rsync_server/file_diff_generator.h"
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#include "cdc_rsync_server/file_info.h"
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#include "common/gamelet_component.h"
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#include "common/path_filter.h"
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namespace cdc_ft {
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class MessagePump;
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class ServerSocket;
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class SocketFinalizer;
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class CdcRsyncServer {
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public:
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CdcRsyncServer();
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~CdcRsyncServer();
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// Checks that the gamelet components (cdc_rsync_server binary etc.) are
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// up-to-date by checking their sizes and timestamps.
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bool CheckComponents(const std::vector<GameletComponent>& components);
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// Listens to |port|, accepts a connection from the client and runs the rsync
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// procedure.
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absl::Status Run(int port);
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// Returns the verbosity sent from the client. 0 by default.
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int GetVerbosity() const { return verbosity_; }
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private:
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// Runs the rsync procedure.
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absl::Status Sync();
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// Receives options from the client.
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absl::Status HandleSetOptions();
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// Finds all server-side files in the |destination_| folder.
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absl::Status FindFiles();
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// Receives all client-side files.
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absl::Status HandleSendAllFiles();
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// Diffs client- and server-side files.
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absl::Status DiffFiles();
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// Deletes files and directories present on the server, but not on the client.
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absl::Status RemoveExtraneousFilesAndDirs();
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// Creates missing directories.
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absl::Status CreateMissingDirs();
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// Sends file indices to the client. Used for missing and changed files.
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template <typename T>
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absl::Status SendFileIndices(const char* file_type,
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const std::vector<T>& files);
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// Receives missing files from the client.
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absl::Status HandleSendMissingFileData();
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// Core rsync algorithm. Sends signatures of changed files to the client,
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// receives diffs and applies them.
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absl::Status SyncChangedFiles();
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// Waits for the shutdown message and send an ack.
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absl::Status HandleShutdown();
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// Called on |message_pump_|'s receiver thread whenever a package is received.
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// Used to toggle decompression.
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void Thread_OnPackageReceived(PacketType type);
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// The order determines the correct destruction order, so keep it!
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std::unique_ptr<SocketFinalizer> socket_finalizer_;
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std::unique_ptr<ServerSocket> socket_;
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std::unique_ptr<MessagePump> message_pump_;
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std::string destination_;
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// Options.
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bool delete_ = false;
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bool recursive_ = false;
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int verbosity_ = 0;
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bool whole_file_ = false;
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bool compress_ = false;
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bool checksum_ = false;
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bool relative_ = false;
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bool dry_run_ = false;
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bool existing_ = false;
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std::string copy_dest_;
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PathFilter path_filter_;
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std::vector<FileInfo> client_files_;
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std::vector<DirInfo> client_dirs_;
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std::vector<FileInfo> server_files_;
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std::vector<DirInfo> server_dirs_;
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file_diff::Result diff_;
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};
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} // namespace cdc_ft
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#endif // CDC_RSYNC_SERVER_CDC_RSYNC_SERVER_H_
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