MemoryData ZipReader::ReadAllData(StringRef fileName)const
{
MemoryData result;
if (mZipFile==nullptr||fileName.IsEmpty())
{
return result;
}
const ZipFileInfo* zipEntryInfo=mFileDict.TryGetByOtherKey(fileName,fileName.HashCode());
if (zipEntryInfo==nullptr)
{
return result;
}
int err = unzGoToFilePos(mZipFile, (unz_file_pos*)&zipEntryInfo->Pos);
if (err!=UNZ_OK)
{
return result;
}
err = unzOpenCurrentFile(mZipFile);
if (err!=UNZ_OK)
{
return result;
}
result=MemoryData::Alloc(zipEntryInfo->UncompressedSize);
int readSize = unzReadCurrentFile(mZipFile, result.MutableData(), (uint)zipEntryInfo->UncompressedSize);
Log::Assert(readSize==(int)zipEntryInfo->UncompressedSize,"Invalid zip file size."); //readSize could be 0 because we may have zero file such as "StringTable-enus.bin"
unzCloseCurrentFile(mZipFile);
return result;
}
bool ZipReader::Exists(StringRef fileName) const
{
return mFileDict.ContainsOtherKey(fileName,fileName.HashCode());
}
