public static Int64 CopyFile(SteamDepotFile file, String destinationFileFullName, Int64 filesSize, Int64 copiedFilesSize, BackgroundWorker worker)
{
if (file == null)
throw new ArgumentNullException("file");
if (String.IsNullOrEmpty(destinationFileFullName))
throw new ArgumentNullException("destinationFileFullName");
if (worker != null && worker.CancellationPending)
return 0L;
FileInfo sourceFile = new FileInfo(file.FullName);
Byte[] buffer = new Byte[1024 * 1024 * 16]; // 16 MB buffer
FileInfo destFile = new FileInfo(destinationFileFullName);
FileStream source;
FileStream destination;
Int64 offset = 0;
Int32 blockSize;
Int32 progressPercent = 0;
// Create directory for destination file if not exist
if (!destFile.Directory.Exists)
{
destFile.Directory.Create();
destFile.Directory.Attributes = sourceFile.Directory.Attributes;
destFile.Directory.CreationTimeUtc = sourceFile.Directory.CreationTimeUtc;
}
// If destination file allready exists
if (destFile.Exists)
{
if (file.FileType == SteamDepotFileTypes.Fix)
{
FileInfo originalFile = new FileInfo(destinationFileFullName + ".original");
if (originalFile.Exists)
{
if (originalFile.IsReadOnly)
originalFile.IsReadOnly = false;
originalFile.Delete();
}
File.Move(destinationFileFullName, originalFile.FullName);
}
else if (destFile.IsReadOnly)
destFile.IsReadOnly = false;
}
source = sourceFile.OpenRead();
destination = destFile.Create();
if (filesSize > 0)
progressPercent = (Int32)((float)copiedFilesSize / filesSize * 100);
while (offset < sourceFile.Length)
{
if (worker != null && worker.CancellationPending)
break;
if (offset + buffer.Length <= sourceFile.Length)
blockSize = buffer.Length;
else
blockSize = (Int32)(sourceFile.Length - offset);
source.Read(buffer, 0, blockSize);
destination.Write(buffer, 0, blockSize);
offset += blockSize;
copiedFilesSize += blockSize;
// Avoid spaming parent thread with report messages
if (worker != null && filesSize > 0 && (Int32)((float)copiedFilesSize / filesSize * 100) > progressPercent)
{
progressPercent = (Int32)((float)copiedFilesSize / filesSize * 100);
worker.ReportProgress(progressPercent);
}
}
source.Close();
destination.Close();
destFile.Attributes = sourceFile.Attributes;
destFile.CreationTimeUtc = sourceFile.CreationTimeUtc;
destFile.LastAccessTimeUtc = sourceFile.LastAccessTimeUtc;
destFile.LastWriteTimeUtc = sourceFile.LastWriteTimeUtc;
return offset;
}
public void AddFile(SteamDepotFile depotFile)
{
if (depotFile == null)
throw new ArgumentNullException("depotFile");
String relativeName = depotFile.RelativeName;
if (files.ContainsKey(relativeName))
files[relativeName].Add(depotFile);
else
{
List<SteamDepotFile> filesList = new List<SteamDepotFile>();
filesList.Add(depotFile);
files.Add(relativeName, filesList);
}
}
