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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.
84 lines
2.6 KiB
C++
84 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 CDC_RSYNC_SERVER_FILE_INFO_H_
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#define CDC_RSYNC_SERVER_FILE_INFO_H_
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#include <string>
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namespace cdc_ft {
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struct FileInfo {
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static constexpr uint32_t kInvalidIndex = UINT32_MAX;
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// Path relative to |base_dir|.
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std::string filepath;
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int64_t modified_time;
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uint64_t size;
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// For client files: Index into the client file list.
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uint32_t client_index;
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// For server files: Base directory. If nullptr, |filepath| is assumed to be
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// relative to the destination directory.
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const char* base_dir;
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FileInfo(std::string filepath, int64_t modified_time, uint64_t size,
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uint32_t client_index, const char* base_dir)
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: filepath(std::move(filepath)),
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modified_time(modified_time),
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size(size),
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client_index(client_index),
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base_dir(base_dir) {}
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};
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struct DirInfo {
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static constexpr uint32_t kInvalidIndex = UINT32_MAX;
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// Path relative to |base_dir|.
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std::string filepath;
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uint32_t client_index;
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// For server files: Base directory. If nullptr, |filepath| is assumed to be
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// relative to the destination directory.
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const char* base_dir;
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DirInfo(std::string filepath, uint32_t client_index, const char* base_dir)
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: filepath(std::move(filepath)),
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client_index(client_index),
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base_dir(base_dir) {}
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};
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// Similar to FileInfo, but size is needed from both client and server.
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struct ChangedFileInfo {
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std::string filepath;
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int64_t client_modified_time;
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uint64_t client_size;
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uint64_t server_size;
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uint32_t client_index;
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const char* base_dir;
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// Moves |client_file| data into this class.
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ChangedFileInfo(const FileInfo& server_file, FileInfo&& client_file)
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: filepath(std::move(client_file.filepath)),
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client_modified_time(client_file.modified_time),
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client_size(client_file.size),
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server_size(server_file.size),
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client_index(client_file.client_index),
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base_dir(server_file.base_dir) {}
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};
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} // namespace cdc_ft
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#endif // CDC_RSYNC_SERVER_FILE_INFO_H_
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