public IBigFileFolderInfo[] ReadFolderInfos(Stream stream, ref BigFileSegmentHeader segmentHeader, ref BigFileHeaderStruct header)
{
if (version == null)
{
throw new NullReferenceException("Version cannot be null!");
}
log.Info("Reading big file folders, count: {0}", header.Folders);
BigFileVersions.DebugLogVersion(version, log);
diag.StartStopwatch();
IBigFileFolderInfo[] infos = new IBigFileFolderInfo[header.Folders];
IBigFileFolderInfo tmpInfo = version.CreateFolderInfo();
int folderOffset = BigFileUtil.CalculateFolderOffset(version, ref segmentHeader, ref header);
byte[] buffer = buffers[tmpInfo.StructSize];
stream.Seek(folderOffset, SeekOrigin.Begin);
for (short i = 0; i < header.Folders; i++)
{
stream.Read(buffer, 0, tmpInfo.StructSize);
infos[i] = tmpInfo.FromBytes(buffer);
infos[i].DebugLog(log);
}
log.Info("Folder infos read! Time taken: {0}ms", diag.StopwatchTime);
return(infos);
}
public void WriteFolderInfos(ref BigFileSegmentHeader segmentHeader, ref BigFileHeaderStruct header, IBigFileFolderInfo[] infos)
{
if (fileInfo == null || !fileInfo.Exists)
{
throw new Exception("File info cannot be null!");
}
log.Debug("Writing folder infos to file {0}", fileInfo.FullName);
using (FileStream fs = File.OpenWrite(fileInfo.FullName))
{
int folderOffset = BigFileUtil.CalculateFolderOffset(version, ref segmentHeader, ref header);
fs.Seek(folderOffset, SeekOrigin.Begin);
WriteFolderInfos(fs, infos);
}
}