// // Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2018 // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #include "td/telegram/files/FileStatsWorker.h" #include "td/telegram/DialogId.h" #include "td/telegram/files/FileDb.h" #include "td/telegram/files/FileLoaderUtils.h" #include "td/telegram/Global.h" #include "td/utils/format.h" #include "td/utils/logging.h" #include "td/utils/PathView.h" #include "td/utils/port/path.h" #include "td/utils/port/Stat.h" #include "td/utils/Slice.h" #include "td/utils/Status.h" #include "td/utils/Time.h" #include "td/utils/tl_helpers.h" #include <functional> #include <unordered_map> namespace td { namespace { // Performance ideas: // - use slice instead of string // - use arena memory allocator // - store FileType or dir, no both // - store dir relative to G()->files_dir() struct DbFileInfo { FileType file_type; string path; DialogId owner_dialog_id; int64 size; }; // long and blocking template <class CallbackT> Status scan_db(CallbackT &&callback) { G()->td_db()->get_file_db_shared()->pmc().get_by_range("file0", "file:", [&](Slice key, Slice value) { // skip reference to other data if (value.substr(0, 2) == "@@") { return; } FileData data; auto status = unserialize(data, value); if (status.is_error()) { LOG(ERROR) << "Invalid FileData in the database " << tag("value", format::escaped(value)); return; } DbFileInfo info; if (data.local_.type() == LocalFileLocation::Type::Full) { info.file_type = data.local_.full().file_type_; info.path = data.local_.full().path_; } else if (data.local_.type() == LocalFileLocation::Type::Partial) { info.file_type = data.local_.partial().file_type_; info.path = data.local_.partial().path_; } else { return; } PathView path_view(info.path); if (path_view.is_relative()) { info.path = get_files_base_dir(info.file_type) + info.path; } // LOG(INFO) << "Found file in the database: " << data << " " << info.path; info.owner_dialog_id = data.owner_dialog_id_; info.size = data.size_; if (info.size == 0 && data.local_.type() == LocalFileLocation::Type::Full) { LOG(ERROR) << "Unknown size in the database"; return; } callback(info); }); return Status::OK(); } struct FsFileInfo { FileType file_type; string path; int64 size; uint64 atime_nsec; uint64 mtime_nsec; }; // long and blocking template <class CallbackT> Status scan_fs(CallbackT &&callback) { for (int i = 0; i < file_type_size; i++) { auto file_type = static_cast<FileType>(i); auto files_dir = get_files_dir(file_type); td::walk_path(files_dir, [&](CSlice path, bool is_dir) { if (is_dir) { // TODO: skip subdirs return; } auto r_stat = stat(path); if (r_stat.is_error()) { LOG(WARNING) << "Stat in files gc failed: " << r_stat.error(); return; } auto stat = r_stat.move_as_ok(); FsFileInfo info; info.path = path.str(); info.size = stat.size_; info.file_type = file_type; info.atime_nsec = stat.atime_nsec_; info.mtime_nsec = stat.mtime_nsec_; callback(info); }); } return Status::OK(); } } // namespace void FileStatsWorker::get_stats(bool need_all_files, bool split_by_owner_dialog_id, Promise<FileStats> promise) { if (!G()->parameters().use_chat_info_db) { split_by_owner_dialog_id = false; } if (!split_by_owner_dialog_id) { FileStats file_stats; file_stats.need_all_files = need_all_files; auto start = Time::now(); scan_fs([&](FsFileInfo &fs_info) { FullFileInfo info; info.file_type = fs_info.file_type; info.path = std::move(fs_info.path); info.size = fs_info.size; info.atime_nsec = fs_info.atime_nsec; info.mtime_nsec = fs_info.mtime_nsec; file_stats.add(std::move(info)); }); auto passed = Time::now() - start; LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed); promise.set_value(std::move(file_stats)); } else { auto start = Time::now(); std::vector<FullFileInfo> full_infos; scan_fs([&](FsFileInfo &fs_info) { FullFileInfo info; info.file_type = fs_info.file_type; info.path = std::move(fs_info.path); info.size = fs_info.size; info.atime_nsec = fs_info.atime_nsec; info.mtime_nsec = fs_info.mtime_nsec; // LOG(INFO) << "Found file of size " << info.size << " at " << info.path; full_infos.push_back(std::move(info)); }); std::unordered_map<size_t, size_t> hash_to_pos; size_t pos = 0; for (auto &full_info : full_infos) { hash_to_pos[std::hash<std::string>()(full_info.path)] = pos; pos++; } scan_db([&](DbFileInfo &db_info) { auto it = hash_to_pos.find(std::hash<std::string>()(db_info.path)); if (it == hash_to_pos.end()) { return; } // LOG(INFO) << "Match! " << db_info.path << " from " << db_info.owner_dialog_id; full_infos[it->second].owner_dialog_id = db_info.owner_dialog_id; }); FileStats file_stats; file_stats.need_all_files = need_all_files; file_stats.split_by_owner_dialog_id = split_by_owner_dialog_id; for (auto &full_info : full_infos) { file_stats.add(std::move(full_info)); } auto passed = Time::now() - start; LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed); promise.set_value(std::move(file_stats)); } } } // namespace td