File indexing completed on 2023-10-03 03:15:39

 /*
     This file is part of the KDE libraries
 
     SPDX-FileCopyrightText: 2009 David Faure <faure@kde.org>
 
     SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #include <kdirwatch.h>
 
 #include <QDebug>
 #include <QDir>
 #include <QFileInfo>
 #include <QTest>
 #include <QThread>
 
 #include "kcoreaddons_debug.h"
 
 class StaticObject
 {
 public:
     KDirWatch m_dirWatch;
 };
 Q_GLOBAL_STATIC(StaticObject, s_staticObject)
 
 class StaticObjectUsingSelf // like KSambaShare does, bug 353080
 {
 public:
     StaticObjectUsingSelf()
     {
         KDirWatch::self();
     }
     ~StaticObjectUsingSelf()
     {
         if (KDirWatch::exists() && KDirWatch::self()->contains(QDir::homePath())) {
             KDirWatch::self()->removeDir(QDir::homePath());
         }
     }
 };
 Q_GLOBAL_STATIC(StaticObjectUsingSelf, s_staticObjectUsingSelf)
 
 namespace KDirWatchTestUtils
 {
 // Just to make the inotify packets bigger
 static const char s_filePrefix[] = "This_is_a_test_file_";
 
 static const char *methodToString(KDirWatch::Method method)
 {
     switch (method) {
     case KDirWatch::FAM:
         return "Fam";
     case KDirWatch::INotify:
         return "INotify";
     case KDirWatch::Stat:
         return "Stat";
     case KDirWatch::QFSWatch:
         return "QFSWatch";
     }
     return "ERROR!";
 }
 
 // helper method: create a file
 inline void createFile(const QString &path, bool slow = false)
 {
     QFile file(path);
     QVERIFY(file.open(QIODevice::WriteOnly));
 #ifdef Q_OS_FREEBSD
     // FreeBSD has inotify implemented as user-space library over native kevent API.
     // When using it, one has to open() a file to start watching it, so workaround
     // test breakage by giving inotify time to react to file creation.
     // Full context: https://github.com/libinotify-kqueue/libinotify-kqueue/issues/10
     if (!slow) {
         QThread::msleep(1);
     }
 #else
     Q_UNUSED(slow)
 #endif
     file.write(QByteArray("foo"));
     file.close();
 }
 
 inline int createDirectoryTree(const QString &basePath, int depth = 4)
 {
     int filesCreated = 0;
 
     const int numFiles = 10;
     for (int i = 0; i < numFiles; ++i) {
         createFile(basePath + QLatin1Char('/') + QLatin1String(s_filePrefix) + QString::number(i));
         ++filesCreated;
     }
 
     if (depth <= 0) {
         return filesCreated;
     }
 
     const int numFolders = 5;
     for (int i = 0; i < numFolders; ++i) {
         const QString childPath = basePath + QLatin1String("/subdir") + QString::number(i);
         QDir().mkdir(childPath);
         filesCreated += createDirectoryTree(childPath, depth - 1);
     }
 
     return filesCreated;
 }
 
 inline void waitUntilAfter(const QDateTime &ctime)
 {
     int totalWait = 0;
     QDateTime now;
     Q_FOREVER {
         now = QDateTime::currentDateTime();
         if (now.toMSecsSinceEpoch() / 1000 == ctime.toMSecsSinceEpoch() / 1000) // truncate milliseconds
         {
             totalWait += 50;
             QTest::qWait(50);
         } else {
             QVERIFY(now > ctime); // can't go back in time ;)
             QTest::qWait(50); // be safe
             break;
         }
     }
     // if (totalWait > 0)
     qCDebug(KCOREADDONS_DEBUG) << "Waited" << totalWait << "ms so that now" << now.toString(Qt::ISODate) << "is >" << ctime.toString(Qt::ISODate);
 }
 inline void waitUntilMTimeChange(const QString &path)
 {
     // Wait until the current second is more than the file's mtime
     // otherwise this change will go unnoticed
 
     QFileInfo fi(path);
     QVERIFY(fi.exists());
     const QDateTime ctime = fi.lastModified();
     waitUntilAfter(ctime);
 }
 
 inline void waitUntilNewSecond()
 {
     QDateTime now = QDateTime::currentDateTime();
     waitUntilAfter(now);
 }
 
 }