Revision control
++ // Copyright (C) 2016 The Qt Company Ltd.
++ // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
++
++ #ifndef QMAKEVFS_H
++ #define QMAKEVFS_H
++
++ #include "qmake_global.h"
++
++ #include <qiodevice.h>
++ #include <qhash.h>
++ #include <qstring.h>
++ #ifdef PROEVALUATOR_THREAD_SAFE
++ # include <qmutex.h>
++ #endif
++
++ #ifdef PROEVALUATOR_DUAL_VFS
++ # ifndef PROEVALUATOR_CUMULATIVE
++ # error PROEVALUATOR_DUAL_VFS requires PROEVALUATOR_CUMULATIVE
++ # endif
++ #endif
++
++ QT_BEGIN_NAMESPACE
++
++ class QMAKE_EXPORT QMakeVfs
++ {
++ public:
++ enum ReadResult {
++ ReadOk,
++ ReadNotFound,
++ ReadOtherError
++ };
++
++ enum VfsFlag {
++ VfsExecutable = 1,
++ VfsExact = 0,
++ #ifdef PROEVALUATOR_DUAL_VFS
++ VfsCumulative = 2,
++ VfsCreate = 4,
++ VfsCreatedOnly = 8,
++ #else
++ VfsCumulative = 0,
++ VfsCreate = 0,
++ VfsCreatedOnly = 0,
++ #endif
++ VfsAccessedOnly = 16
++ };
++ Q_DECLARE_FLAGS(VfsFlags, VfsFlag)
++
++ QMakeVfs();
++ ~QMakeVfs();
++
++ static void ref();
++ static void deref();
++
++ int idForFileName(const QString &fn, VfsFlags flags);
++ QString fileNameForId(int id);
++ bool writeFile(int id, QIODevice::OpenMode mode, VfsFlags flags, const QString &contents, QString *errStr);
++ ReadResult readFile(int id, QString *contents, QString *errStr, bool utf8 = false);
++ bool exists(const QString &fn, QMakeVfs::VfsFlags flags);
++
++ #ifndef PROEVALUATOR_FULL
++ void invalidateCache();
++ void invalidateContents();
++ #endif
++
++ private:
++ #ifdef PROEVALUATOR_THREAD_SAFE
++ static QMutex s_mutex;
++ #endif
++ static int s_refCount;
++ static QAtomicInt s_fileIdCounter;
++ // Qt Creator's ProFile cache is a singleton to maximize its cross-project
++ // effectiveness (shared prf files from QtVersions).
++ // For this to actually work, real files need a global mapping.
++ // This is fine, because the namespace of real files is indeed global.
++ static QHash<QString, int> s_fileIdMap;
++ static QHash<int, QString> s_idFileMap;
++ #ifdef PROEVALUATOR_DUAL_VFS
++ # ifdef PROEVALUATOR_THREAD_SAFE
++ // The simple way to avoid recursing m_mutex.
++ QMutex m_vmutex;
++ # endif
++ // Virtual files are bound to the project context they were created in,
++ // so their ids need to be local as well.
++ // We violate that rule in lupdate (which has a non-dual VFS), but that
++ // does not matter, because it has only one project context anyway.
++ QHash<QString, int> m_virtualFileIdMap[2]; // Exact and cumulative
++ QHash<int, QString> m_virtualIdFileMap; // Only one map, as ids are unique across realms.
++ #endif
++
++ #ifndef PROEVALUATOR_FULL
++ # ifdef PROEVALUATOR_THREAD_SAFE
++ QMutex m_mutex;
++ # endif
++ QHash<int, QString> m_files;
++ QString m_magicMissing;
++ QString m_magicExisting;
++ #endif
++ };
++
++ Q_DECLARE_OPERATORS_FOR_FLAGS(QMakeVfs::VfsFlags)
++
++ QT_END_NAMESPACE
++
++ #endif // QMAKEVFS_H