private FileStream GetStream(FileEntry file, bool write)
{
const int tryCount = 5;
int tryTime = 0;
while (true)
{
lock (openStreams)
{
string finalPath = Path.Combine(MainDirectory, file.Name);
if(!write && !FileExists(finalPath)) return null;
FileStream stream;
if(openStreams.TryGetValue(finalPath, out stream))
{
if(!write) return stream;
if(stream.CanWrite) return stream;
openStreams.TryRemove(finalPath, out stream);
}
try
{
var dir = Path.GetDirectoryName(finalPath);
if(dir != string.Empty && !Directory.Exists(dir))
Directory.CreateDirectory(dir);
stream = File.Open(finalPath, write ? FileMode.OpenOrCreate : FileMode.Open,
write ? FileAccess.ReadWrite : FileAccess.Read);
openStreams.TryAdd(finalPath, stream);
return stream;
}
catch(Exception)
{
tryTime++;
if(tryTime > tryCount)
throw;
}
}
}
}
private FileEntry CreateTorrentFile(BencodedDictionary file)
{
string[] filePathList = (file["path"] as BencodedList).Select(s => (string) (s as BencodedString)).ToArray();
var fileLength = file["length"] as BencodedInteger;
CheckFileProperties(filePathList, fileLength);
string filePath = Path.Combine(filePathList);
var torrentFile = new FileEntry(filePath, fileLength);
return torrentFile;
}
public void Remove(FileEntry fileEntry)
{
filesToAdd.Remove(fileEntry);
}