#include #ifdef Q_OS_WIN # include #else # include # include # include # include #endif class Test : public QObject{ Q_OBJECT public slots: void initTestCase() { QDir testdir = QDir::tempPath(); const QString subfolder_name = QLatin1String("test_speed"); QVERIFY(testdir.mkdir(subfolder_name)); QVERIFY(testdir.cd(subfolder_name)); for (uint i=0; i<10000; ++i) { QFile file(testdir.absolutePath() + "/testfile_" + QString::number(i)); file.open(QIODevice::WriteOnly); } } void cleanupTestCase() { { QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); foreach (const QString &filename, testdir.entryList()) { testdir.remove(filename); } } const QDir temp = QDir(QDir::tempPath()); temp.rmdir(QLatin1String("test_speed")); } private slots: void sizeSpeed() { QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); QBENCHMARK { QFileInfoList fileInfoList = testdir.entryInfoList(QDir::Files, QDir::Unsorted); foreach (const QFileInfo &fileInfo, fileInfoList) { fileInfo.isDir(); fileInfo.size(); } } } void sizeSpeedWithoutFilter() { QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); QBENCHMARK { QFileInfoList fileInfoList = testdir.entryInfoList(QDir::NoFilter, QDir::Unsorted); foreach (const QFileInfo &fileInfo, fileInfoList) { fileInfo.size(); } } } void sizeSpeedWithoutFileInfoList() { QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); testdir.setSorting(QDir::Unsorted); QBENCHMARK { QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted); foreach (const QString &filename, fileList) { QFileInfo fileInfo(filename); fileInfo.size(); } } } void iDontWantAnyStat() { QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); testdir.setSorting(QDir::Unsorted); testdir.setFilter(QDir::AllEntries | QDir::System | QDir::Hidden); QBENCHMARK { QStringList fileList = testdir.entryList(QDir::NoFilter, QDir::Unsorted); foreach (const QString &filename, fileList) { } } } void testLowLevel() { #ifdef Q_OS_WIN const wchar_t *dirpath = (wchar_t*)testdir.absolutePath().utf16(); wchar_t appendedPath[MAX_PATH]; wcscpy(appendedPath, dirpath); wcscat(appendedPath, L"\\*"); WIN32_FIND_DATA fd; HANDLE hSearch = FindFirstFileW(appendedPath, &fd); QVERIFY(hSearch == INVALID_HANDLE_VALUE); QBENCHMARK { do { } while (FindNextFile(hSearch, &fd)); } FindClose(hSearch); #else QDir testdir(QDir::tempPath() + QLatin1String("/test_speed")); DIR *dir = opendir(qPrintable(testdir.absolutePath())); QVERIFY(dir); QVERIFY(!chdir(qPrintable(testdir.absolutePath()))); QBENCHMARK { struct dirent *item = readdir(dir); while (item) { char *fileName = item->d_name; struct stat fileStat; QVERIFY(!stat(fileName, &fileStat)); item = readdir(dir); } } closedir(dir); #endif } }; QTEST_MAIN(Test) #include "tst_qdir.moc"