QDynamicFileResourceRoot Class Reference

Inheritance diagram for QDynamicFileResourceRoot:

Public Functions
QString	mappingFile () const
	QDynamicFileResourceRoot (const QString &_root)
bool	registerSelf (const QString &f)
virtual ResourceRootType	type () const
	~QDynamicFileResourceRoot ()
Public Functions inherited from QDynamicBufferResourceRoot
const uchar *	mappingBuffer () const
virtual QString	mappingRoot () const
	QDynamicBufferResourceRoot (const QString &_root)
bool	registerSelf (const uchar *b)
	~QDynamicBufferResourceRoot ()
Public Functions inherited from QResourceRoot
QStringList	children (int node) const
const uchar *	data (int node, qint64 *size) const
int	findNode (const QString &path, const QLocale &locale=QLocale()) const
bool	isCompressed (int node) const
bool	isContainer (int node) const
bool	mappingRootSubdir (const QString &path, QString *match=0) const
bool	operator!= (const QResourceRoot &other) const
bool	operator== (const QResourceRoot &other) const
	QResourceRoot ()
	QResourceRoot (const uchar *t, const uchar *n, const uchar *d)
virtual	~QResourceRoot ()

Properties
QString	fileName
unsigned int	unmapLength
uchar *	unmapPointer

Additional Inherited Members
Public Types inherited from QResourceRoot
enum	ResourceRootType { Resource_Builtin, Resource_File, Resource_Buffer }
Public Variables inherited from QResourceRoot
QAtomicInt	ref
Protected Functions inherited from QResourceRoot
void	setSource (const uchar *t, const uchar *n, const uchar *d)

Detailed Description

Definition at line 959 of file qresource.cpp.

Constructors and Destructors

QDynamicFileResourceRoot()

QDynamicFileResourceRoot::QDynamicFileResourceRoot ( const QString &  _root )

inline

Definition at line 967 of file qresource.cpp.

: QDynamicBufferResourceRoot(_root), unmapPointer(0), unmapLength(0) { }

~QDynamicFileResourceRoot()

QDynamicFileResourceRoot::~QDynamicFileResourceRoot ( )

inline

Definition at line 968 of file qresource.cpp.

                                {
#if defined(QT_USE_MMAP)
        if (unmapPointer) {
            munmap((char*)unmapPointer, unmapLength);
            unmapPointer = 0;
            unmapLength = 0;
        } else
#endif
        {
            delete [] (uchar *)mappingBuffer();
        }
    }

Functions

mappingFile()

QString QDynamicFileResourceRoot::mappingFile ( ) const

inline

Definition at line 980 of file qresource.cpp.

Referenced by QResource::unregisterResource().

{ return fileName; }

registerSelf()

bool QDynamicFileResourceRoot::registerSelf ( const QString &  f )

inline

Definition at line 983 of file qresource.cpp.

Referenced by QResource::registerResource().

                                        {
        bool fromMM = false;
        uchar *data = 0;
        unsigned int data_len = 0;

#ifdef QT_USE_MMAP

#ifndef MAP_FILE
#define MAP_FILE 0
#endif
#ifndef MAP_FAILED
#define MAP_FAILED -1
#endif

        int fd = QT_OPEN(QFile::encodeName(f), O_RDONLY,
#if defined(Q_OS_WIN)
                         _S_IREAD | _S_IWRITE
#else
                         0666
#endif
            );
        if (fd >= 0) {
            QT_STATBUF st;
            if (!QT_FSTAT(fd, &st)) {
                uchar *ptr;
                ptr = reinterpret_cast<uchar *>(
                    mmap(0, st.st_size,             // any address, whole file
                         PROT_READ,                 // read-only memory
                         MAP_FILE | MAP_PRIVATE,    // swap-backed map from file
                         fd, 0));                   // from offset 0 of fd
                if (ptr && ptr != reinterpret_cast<uchar *>(MAP_FAILED)) {
                    data = ptr;
                    data_len = st.st_size;
                    fromMM = true;
                }
            }
            ::close(fd);
        }
#endif // QT_USE_MMAP
        if(!data) {
            QFile file(f);
            if (!file.exists())
                return false;
            data_len = file.size();
            data = new uchar[data_len];

            bool ok = false;
            if (file.open(QIODevice::ReadOnly))
                ok = (data_len == (uint)file.read((char*)data, data_len));
            if (!ok) {
                delete [] data;
                data = 0;
                data_len = 0;
                return false;
            }
            fromMM = false;
        }
        if(data && QDynamicBufferResourceRoot::registerSelf(data)) {
            if(fromMM) {
                unmapPointer = data;
                unmapLength = data_len;
            }
            fileName = f;
            return true;
        }
        return false;
    }

type()

virtual ResourceRootType QDynamicFileResourceRoot::type ( ) const

inlinevirtual

Reimplemented from QDynamicBufferResourceRoot.

Definition at line 981 of file qresource.cpp.

{ return Resource_File; }

Properties

fileName

QString QDynamicFileResourceRoot::fileName

private

Definition at line 961 of file qresource.cpp.

unmapLength

unsigned int QDynamicFileResourceRoot::unmapLength

private

Definition at line 964 of file qresource.cpp.

unmapPointer

uchar* QDynamicFileResourceRoot::unmapPointer

private

Definition at line 963 of file qresource.cpp.

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The documentation for this class was generated from the following file:

• /src/corelib/io/qresource.cpp