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);
}
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;
}
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;
}
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);
}
