Exemplo n.º 1
0
bool QTranslatorPrivate::do_load(const QString &realname)
{
    QTranslatorPrivate *d = this;
    bool ok = false;

    const bool isResourceFile = realname.startsWith(QLatin1Char(':'));
    if (isResourceFile) {
        // If the translation is in a non-compressed resource file, the data is already in
        // memory, so no need to use QFile to copy it again.
        Q_ASSERT(!d->resource);
        d->resource = new QResource(realname);
        if (d->resource->isValid() && !d->resource->isCompressed()) {
            d->dataLength = d->resource->size();
            d->dataPointer = const_cast<uchar *>(d->resource->data());
            ok = true;
        } else {
            delete d->resource;
            d->resource = 0;
        }
    }

    if (!ok) {
        QFile file(realname);
        d->dataLength = file.size();
        if (!d->dataLength)
            return false;
        d->dataPointer = new uchar[d->dataLength];

        if (file.open(QIODevice::ReadOnly)) {
            if (d->dataLength != (uint)file.read(reinterpret_cast<char*>(d->dataPointer), d->dataLength)) {
                delete [] d->dataPointer;
                d->dataPointer = 0;
                d->dataLength = 0;
                return false;
            }
        }
    }

    return d->do_load(d->dataPointer, d->dataLength);
}
Exemplo n.º 2
0
bool QTranslatorPrivate::do_load(const QString &realname, const QString &directory)
{
    QTranslatorPrivate *d = this;
    bool ok = false;

    QFile file(realname);
    if (!file.open(QIODevice::ReadOnly | QIODevice::Unbuffered))
        return false;

    qint64 fileSize = file.size();
    if (fileSize <= MagicLength || quint32(-1) <= fileSize)
        return false;

    {
        char magicBuffer[MagicLength];
        if (MagicLength != file.read(magicBuffer, MagicLength)
                || memcmp(magicBuffer, magic, MagicLength))
            return false;
    }

    d->unmapLength = quint32(fileSize);

#ifdef QT_USE_MMAP

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

    int fd = file.handle();
    if (fd >= 0) {
        char *ptr;
        ptr = reinterpret_cast<char *>(
            mmap(0, d->unmapLength,         // 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<char *>(MAP_FAILED)) {
            file.close();
            d->used_mmap = true;
            d->unmapPointer = ptr;
            ok = true;
        }
    }
#endif // QT_USE_MMAP

    if (!ok) {
        d->unmapPointer = new char[d->unmapLength];
        if (d->unmapPointer) {
            file.seek(0);
            qint64 readResult = file.read(d->unmapPointer, d->unmapLength);
            if (readResult == qint64(unmapLength))
                ok = true;
        }
    }

    if (ok && d->do_load(reinterpret_cast<const uchar *>(d->unmapPointer), d->unmapLength, directory))
        return true;

#if defined(QT_USE_MMAP)
    if (used_mmap) {
        used_mmap = false;
        munmap(unmapPointer, unmapLength);
    } else
#endif
        delete [] unmapPointer;

    d->unmapPointer = 0;
    d->unmapLength = 0;

    return false;
}
Exemplo n.º 3
0
bool QTranslatorPrivate::do_load(const QString &realname, const QString &directory)
{
    QTranslatorPrivate *d = this;
    bool ok = false;

    if (realname.startsWith(':')) {
        // If the translation is in a non-compressed resource file, the data is already in
        // memory, so no need to use QFile to copy it again.
        Q_ASSERT(!d->resource);
        d->resource = new QResource(realname);
        if (resource->isValid() && !resource->isCompressed() && resource->size() > MagicLength
                && !memcmp(resource->data(), magic, MagicLength)) {
            d->unmapLength = resource->size();
            d->unmapPointer = reinterpret_cast<char *>(const_cast<uchar *>(resource->data()));
#if defined(QT_USE_MMAP)
            d->used_mmap = false;
#endif
            ok = true;
        } else {
            delete resource;
            resource = 0;
        }
    }

    if (!ok) {
        QFile file(realname);
        if (!file.open(QIODevice::ReadOnly | QIODevice::Unbuffered))
            return false;

        qint64 fileSize = file.size();
        if (fileSize <= MagicLength || quint32(-1) <= fileSize)
            return false;

        {
            char magicBuffer[MagicLength];
            if (MagicLength != file.read(magicBuffer, MagicLength)
                    || memcmp(magicBuffer, magic, MagicLength))
                return false;
        }

        d->unmapLength = quint32(fileSize);

#ifdef QT_USE_MMAP

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

        int fd = file.handle();
        if (fd >= 0) {
            char *ptr;
            ptr = reinterpret_cast<char *>(
                mmap(0, d->unmapLength,         // 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<char *>(MAP_FAILED)) {
                file.close();
                d->used_mmap = true;
                d->unmapPointer = ptr;
                ok = true;
            }
        }
#endif // QT_USE_MMAP

        if (!ok) {
            d->unmapPointer = new char[d->unmapLength];
            if (d->unmapPointer) {
                file.seek(0);
                qint64 readResult = file.read(d->unmapPointer, d->unmapLength);
                if (readResult == qint64(unmapLength))
                    ok = true;
            }
        }
    }

    if (ok && d->do_load(reinterpret_cast<const uchar *>(d->unmapPointer), d->unmapLength, directory))
        return true;

#if defined(QT_USE_MMAP)
    if (used_mmap) {
        used_mmap = false;
        munmap(unmapPointer, unmapLength);
    } else
#endif
    if (!d->resource)
        delete [] unmapPointer;

    delete d->resource;
    d->resource = 0;
    d->unmapPointer = 0;
    d->unmapLength = 0;

    return false;
}
Exemplo n.º 4
0
bool QTranslatorPrivate::do_load(const QString &realname)
{
    QTranslatorPrivate *d = this;
    bool ok = false;

    const bool isResourceFile = realname.startsWith(QLatin1Char(':'));
    if (isResourceFile) {
        // If the translation is in a non-compressed resource file, the data is already in
        // memory, so no need to use QFile to copy it again.
        Q_ASSERT(!d->resource);
        d->resource = new QResource(realname);
        if (d->resource->isValid() && !d->resource->isCompressed()) {
            d->unmapLength = d->resource->size();
            d->unmapPointer = reinterpret_cast<char *>(const_cast<uchar *>(d->resource->data()));
            d->used_mmap = false;
            ok = true;
        } else {
            delete d->resource;
            d->resource = 0;
        }
    }

#ifdef QT_USE_MMAP

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

    else {
        int fd = QT_OPEN(QFile::encodeName(realname), 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)) {
                char *ptr;
                ptr = reinterpret_cast<char *>(
                    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<char *>(MAP_FAILED)) {
                    d->used_mmap = true;
                    d->unmapPointer = ptr;
                    d->unmapLength = st.st_size;
                    ok = true;
                }
            }
            ::close(fd);
        }
    }
#endif // QT_USE_MMAP

    if (!ok) {
        QFile file(realname);
        d->unmapLength = file.size();
        if (!d->unmapLength)
            return false;
        d->unmapPointer = new char[d->unmapLength];

        if (file.open(QIODevice::ReadOnly))
            ok = (d->unmapLength == (uint)file.read(d->unmapPointer, d->unmapLength));

        if (!ok) {
            delete [] d->unmapPointer;
            d->unmapPointer = 0;
            d->unmapLength = 0;
            return false;
        }
    }

    return d->do_load(reinterpret_cast<const uchar *>(d->unmapPointer), d->unmapLength);
}