221 lines
6.8 KiB
C++
221 lines
6.8 KiB
C++
//
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// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2020
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#include "td/telegram/files/FileStatsWorker.h"
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#include "td/telegram/DialogId.h"
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#include "td/telegram/files/FileData.h"
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#include "td/telegram/files/FileDb.h"
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#include "td/telegram/files/FileLoaderUtils.h"
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#include "td/telegram/files/FileLocation.h"
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#include "td/telegram/files/FileType.h"
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#include "td/telegram/Global.h"
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#include "td/telegram/logevent/LogEvent.h"
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#include "td/telegram/TdDb.h"
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#include "td/db/SqliteKeyValue.h"
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#include "td/utils/format.h"
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#include "td/utils/logging.h"
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#include "td/utils/misc.h"
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#include "td/utils/PathView.h"
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#include "td/utils/port/path.h"
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#include "td/utils/port/Stat.h"
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#include "td/utils/Slice.h"
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#include "td/utils/Status.h"
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#include "td/utils/Time.h"
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#include "td/utils/tl_parsers.h"
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#include <functional>
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#include <unordered_map>
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namespace td {
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namespace {
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// Performance ideas:
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// - use slice instead of string
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// - use arena memory allocator
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// - store FileType or dir, no both
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// - store dir relative to G()->files_dir()
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struct DbFileInfo {
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FileType file_type;
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string path;
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DialogId owner_dialog_id;
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int64 size;
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};
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template <class CallbackT>
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void scan_db(CancellationToken &token, CallbackT &&callback) {
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G()->td_db()->get_file_db_shared()->pmc().get_by_range("file0", "file:", [&](Slice key, Slice value) {
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if (token) {
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return false;
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}
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// skip reference to other data
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if (value.substr(0, 2) == "@@") {
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return true;
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}
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logevent::WithVersion<TlParser> parser(value);
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FileData data;
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data.parse(parser, false);
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if (parser.get_status().is_error()) {
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LOG(ERROR) << "Invalid FileData in the database " << tag("value", format::escaped(value));
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return true;
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}
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DbFileInfo info;
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if (data.local_.type() == LocalFileLocation::Type::Full) {
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info.file_type = data.local_.full().file_type_;
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info.path = data.local_.full().path_;
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} else if (data.local_.type() == LocalFileLocation::Type::Partial) {
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info.file_type = data.local_.partial().file_type_;
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info.path = data.local_.partial().path_;
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} else {
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return true;
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}
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PathView path_view(info.path);
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if (path_view.is_relative()) {
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info.path = PSTRING() << get_files_base_dir(info.file_type) << info.path;
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}
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// LOG(INFO) << "Found file in the database: " << data << " " << info.path;
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info.owner_dialog_id = data.owner_dialog_id_;
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info.size = data.size_;
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if (info.size == 0 && data.local_.type() == LocalFileLocation::Type::Full) {
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LOG(ERROR) << "Unknown size in the database";
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return true;
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}
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callback(info);
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return true;
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});
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}
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struct FsFileInfo {
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FileType file_type;
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string path;
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int64 size;
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uint64 atime_nsec;
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uint64 mtime_nsec;
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};
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template <class CallbackT>
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void scan_fs(CancellationToken &token, CallbackT &&callback) {
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for (int32 i = 0; i < file_type_size; i++) {
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auto file_type = static_cast<FileType>(i);
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if (file_type == FileType::SecureRaw || file_type == FileType::Wallpaper) {
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continue;
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}
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auto files_dir = get_files_dir(file_type);
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walk_path(files_dir, [&](CSlice path, WalkPath::Type type) {
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if (token) {
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return WalkPath::Action::Abort;
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}
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if (type != WalkPath::Type::NotDir) {
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return WalkPath::Action::Continue;
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}
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auto r_stat = stat(path);
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if (r_stat.is_error()) {
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LOG(WARNING) << "Stat in files gc failed: " << r_stat.error();
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return WalkPath::Action::Continue;
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}
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auto stat = r_stat.move_as_ok();
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if (ends_with(path, "/.nomedia") && stat.size_ == 0) {
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// skip .nomedia file
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return WalkPath::Action::Continue;
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}
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FsFileInfo info;
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info.path = path.str();
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info.size = stat.size_;
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info.file_type = file_type;
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info.atime_nsec = stat.atime_nsec_;
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info.mtime_nsec = stat.mtime_nsec_;
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callback(info);
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return WalkPath::Action::Continue;
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}).ignore();
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}
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}
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} // namespace
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void FileStatsWorker::get_stats(bool need_all_files, bool split_by_owner_dialog_id, Promise<FileStats> promise) {
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if (!G()->parameters().use_chat_info_db) {
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split_by_owner_dialog_id = false;
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}
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if (!split_by_owner_dialog_id) {
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FileStats file_stats;
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file_stats.need_all_files = need_all_files;
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auto start = Time::now();
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scan_fs(token_, [&](FsFileInfo &fs_info) {
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FullFileInfo info;
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info.file_type = fs_info.file_type;
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info.path = std::move(fs_info.path);
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info.size = fs_info.size;
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info.atime_nsec = fs_info.atime_nsec;
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info.mtime_nsec = fs_info.mtime_nsec;
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file_stats.add(std::move(info));
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});
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auto passed = Time::now() - start;
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LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed);
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if (token_) {
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return promise.set_error(Status::Error(500, "Request aborted"));
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}
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promise.set_value(std::move(file_stats));
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} else {
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auto start = Time::now();
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std::vector<FullFileInfo> full_infos;
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scan_fs(token_, [&](FsFileInfo &fs_info) {
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FullFileInfo info;
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info.file_type = fs_info.file_type;
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info.path = std::move(fs_info.path);
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info.size = fs_info.size;
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info.atime_nsec = fs_info.atime_nsec;
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info.mtime_nsec = fs_info.mtime_nsec;
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// LOG(INFO) << "Found file of size " << info.size << " at " << info.path;
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full_infos.push_back(std::move(info));
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});
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if (token_) {
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return promise.set_error(Status::Error(500, "Request aborted"));
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}
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std::unordered_map<size_t, size_t> hash_to_pos;
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size_t pos = 0;
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for (auto &full_info : full_infos) {
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hash_to_pos[std::hash<std::string>()(full_info.path)] = pos;
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pos++;
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if (token_) {
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return promise.set_error(Status::Error(500, "Request aborted"));
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}
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}
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scan_db(token_, [&](DbFileInfo &db_info) {
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auto it = hash_to_pos.find(std::hash<std::string>()(db_info.path));
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if (it == hash_to_pos.end()) {
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return;
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}
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// LOG(INFO) << "Match! " << db_info.path << " from " << db_info.owner_dialog_id;
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full_infos[it->second].owner_dialog_id = db_info.owner_dialog_id;
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});
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if (token_) {
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return promise.set_error(Status::Error(500, "Request aborted"));
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}
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FileStats file_stats;
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file_stats.need_all_files = need_all_files;
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file_stats.split_by_owner_dialog_id = split_by_owner_dialog_id;
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for (auto &full_info : full_infos) {
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file_stats.add(std::move(full_info));
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if (token_) {
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return promise.set_error(Status::Error(500, "Request aborted"));
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}
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}
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auto passed = Time::now() - start;
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LOG_IF(INFO, passed > 0.5) << "Get file stats took: " << format::as_time(passed);
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promise.set_value(std::move(file_stats));
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}
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}
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} // namespace td
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