mirror of
https://github.com/vale981/tdesktop
synced 2025-03-06 18:21:42 -05:00
9ba331693f
Sync call to QDir::entryList is a bad idea for the user data folder. Some users reported hanging on startup with 1.25M legacy cache files. Now we enumerate up to 10000 files at once asynchronously and clear.
62 lines
1.5 KiB
C++
62 lines
1.5 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#include "storage/storage_clear_legacy.h"
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#include <Windows.h>
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namespace Storage {
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namespace details {
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std::vector<QString> CollectFiles(
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const QString &base,
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size_type limit,
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const base::flat_set<QString> &skip) {
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Expects(base.endsWith('/'));
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Expects(limit > 0);
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const auto native = QDir::toNativeSeparators(base).toStdWString();
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const auto search = native + L'*';
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auto data = WIN32_FIND_DATA{ 0 };
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const auto handle = FindFirstFileEx(
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search.c_str(),
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FindExInfoBasic,
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&data,
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FindExSearchNameMatch,
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nullptr,
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0);
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if (handle == INVALID_HANDLE_VALUE) {
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return {};
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}
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const auto guard = gsl::finally([&] { FindClose(handle); });
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auto result = std::vector<QString>();
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do {
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const auto full = native + data.cFileName;
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if (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
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continue;
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}
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const auto file = QString::fromWCharArray(
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data.cFileName,
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full.size() - native.size());
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auto name = QDir::fromNativeSeparators(file);
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if (!skip.contains(name)) {
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result.push_back(std::move(name));
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}
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} while (result.size() != limit && FindNextFile(handle, &data));
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return result;
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}
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bool RemoveLegacyFile(const QString &path) {
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const auto native = QDir::toNativeSeparators(path).toStdWString();
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return (::DeleteFile(native.c_str()) != 0);
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}
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} // namespace details
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} // namespace Storage
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