123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136 | // Copyright (C) 2020 The Qt Company Ltd.// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only#ifndef QFILEDEVICE_H#define QFILEDEVICE_H#include <QtCore/qiodevice.h>#include <QtCore/qstring.h> QT_BEGIN_NAMESPACE class QDateTime;class QFileDevicePrivate;#if !defined(QT_USE_NODISCARD_FILE_OPEN) && !defined(QT_NO_USE_NODISCARD_FILE_OPEN)# if QT_VERSION < QT_VERSION_CHECK(6, 10, 0)# define QT_NO_USE_NODISCARD_FILE_OPEN# else# define QT_USE_NODISCARD_FILE_OPEN# endif#endif#if defined(QT_USE_NODISCARD_FILE_OPEN) && defined(QT_NO_USE_NODISCARD_FILE_OPEN)#error"Inconsistent macro definition for nodiscard QFile::open"#elif defined(QT_USE_NODISCARD_FILE_OPEN)#define QFILE_MAYBE_NODISCARD [[nodiscard]]#else/* QT_NO_USE_NODISCARD_FILE_OPEN */#define QFILE_MAYBE_NODISCARD#endifclass Q_CORE_EXPORT QFileDevice :public QIODevice {#ifndef QT_NO_QOBJECT Q_OBJECT #endifQ_DECLARE_PRIVATE(QFileDevice)public:enum FileError { NoError =0, ReadError =1, WriteError =2, FatalError =3, ResourceError =4, OpenError =5, AbortError =6, TimeOutError =7, UnspecifiedError =8, RemoveError =9, RenameError =10, PositionError =11, ResizeError =12, PermissionsError =13, CopyError =14};enum FileTime { FileAccessTime, FileBirthTime, FileMetadataChangeTime, FileModificationTime };enum Permission { ReadOwner =0x4000, WriteOwner =0x2000, ExeOwner =0x1000, ReadUser =0x0400, WriteUser =0x0200, ExeUser =0x0100, ReadGroup =0x0040, WriteGroup =0x0020, ExeGroup =0x0010, ReadOther =0x0004, WriteOther =0x0002, ExeOther =0x0001};Q_DECLARE_FLAGS(Permissions, Permission)enum FileHandleFlag { AutoCloseHandle =0x0001, DontCloseHandle =0};Q_DECLARE_FLAGS(FileHandleFlags, FileHandleFlag)~QFileDevice(); FileError error()const;voidunsetError();voidclose() override;boolisSequential()const override;inthandle()const;virtual QString fileName()const; qint64 pos()const override;boolseek(qint64 offset) override;boolatEnd()const override;boolflush(); qint64 size()const override;virtualboolresize(qint64 sz);virtual Permissions permissions()const;virtualboolsetPermissions(Permissions permissionSpec);enum MemoryMapFlag { NoOptions =0, MapPrivateOption =0x0001};Q_DECLARE_FLAGS(MemoryMapFlags, MemoryMapFlag) uchar *map(qint64 offset, qint64 size, MemoryMapFlags flags = NoOptions);boolunmap(uchar *address); QDateTime fileTime(QFileDevice::FileTime time)const;boolsetFileTime(const QDateTime &newDate,QFileDevice::FileTime fileTime);protected:QFileDevice();#ifdef QT_NO_QOBJECTQFileDevice(QFileDevicePrivate &dd);#elseexplicitQFileDevice(QObject *parent);QFileDevice(QFileDevicePrivate &dd, QObject *parent =nullptr);#endif qint64 readData(char*data, qint64 maxlen) override; qint64 writeData(const char*data, qint64 len) override; qint64 readLineData(char*data, qint64 maxlen) override;private:Q_DISABLE_COPY(QFileDevice)};Q_DECLARE_OPERATORS_FOR_FLAGS(QFileDevice::Permissions)Q_DECLARE_OPERATORS_FOR_FLAGS(QFileDevice::FileHandleFlags)Q_DECLARE_OPERATORS_FOR_FLAGS(QFileDevice::MemoryMapFlags) QT_END_NAMESPACE #endif// QFILEDEVICE_H
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