private void ExtractCallback(object ctx)
{
WorkUnit unit = (WorkUnit)ctx;
EmbeddedFileInfo efi = unit.efi;
byte[] buffer = new byte[efi.size];
IntPtr fileMemAddress = new IntPtr(unit.fileVolAddress);
Marshal.Copy(fileMemAddress, buffer, 0, buffer.Length);
if (unit.callback != null)
{
unit.callback(String.Format("Extracted {0} from VOL", efi.name));
}
// I tried async-ing this write in the decomp case, but it was magnitudes slower
unit.destFile.Write(buffer, 0, buffer.Length);
if (unit.callback != null)
{
unit.callback(String.Format("Finished writing {0} bytes of {1}", buffer.Length, efi.name));
}
if (unit.shouldDecompAfter)
{
// create a mem stream on the buffer so we can decomp without having to hit the filesystem
// on both the read and the write
MemoryStream memGz = new MemoryStream(buffer, false);
using (FileStream destFile = GetUnzippedFileFromOrig(unit.destFile.Name))
using (GZipInputStream srcStream = new GZipInputStream(memGz))
{
byte[] readBuf = new byte[0x8000];
StreamUtils.Copy(srcStream, destFile, readBuf);
if (unit.callback != null)
{
unit.callback(String.Format("Ungzipped {0} bytes to {1} for {2}", memGz.Length, destFile.Position, efi.name));
}
}
}
unit.finishedHandle.Set();
string fileName = unit.destFile.Name;
unit.destFile.Close();
DateTime fileTime = new DateTime(1970, 1, 1, 0, 0, 0).AddSeconds(unit.efi.dateTime);
File.SetCreationTime(fileName, fileTime);
File.SetLastWriteTime(fileName, fileTime);
File.SetLastAccessTime(fileName, fileTime);
}