public PackedArchive(FileInfo file)
{
map = file.OpenMemoryMappedFileForSharedRead();
long listingSize;
using (var headerAccessor = map.CreateViewAccessor(0, HeaderSize, MemoryMappedFileAccess.Read)) {
listingSize = headerAccessor.ReadInt64(0);
payloadOffset = headerAccessor.ReadInt64(sizeof(long));
}
PackedArchiveDirectoryRecord rootRecord;
using (var listingStream = map.CreateViewStream(HeaderSize, listingSize, MemoryMappedFileAccess.Read)) {
rootRecord = Persistance.Read <PackedArchiveDirectoryRecord>(listingStream);
}
root = new PackedArchiveDirectory(this, rootRecord);
}
