internal TorrentFileStream GetStream(TorrentFile file, FileAccess access)
{
TorrentFileStream s = FindStream(file.FullPath);
if (s != null)
{
// If we are requesting write access and the current stream does not have it
if (((access & FileAccess.Write) == FileAccess.Write) && !s.CanWrite)
{
Logger.Log (null, "Didn't have write permission - reopening");
CloseAndRemove(s);
s = null;
}
else
{
// Place the filestream at the end so we know it's been recently used
list.Remove(s);
list.Add(s);
}
}
if (s == null)
{
if (!File.Exists(file.FullPath))
{
Directory.CreateDirectory (Path.GetDirectoryName(file.FullPath));
SparseFile.CreateSparse (file.FullPath, file.Length);
}
s = new TorrentFileStream (file, FileMode.OpenOrCreate, access, FileShare.Read);
Add(s);
}
return s;
}
internal TorrentFileStream GetStream(TorrentFile file, string filePath, FileAccess access)
{
var s = FindStream(filePath);
if (s != null)
{
// If we are requesting write access and the current stream does not have it
if (((access & FileAccess.Write) == FileAccess.Write) && !s.CanWrite)
{
Logger.Log(null, "Didn't have write permission - reopening");
CloseAndRemove(s);
s = null;
}
else
{
// Place the filestream at the end so we know it's been recently used
list.Remove(s);
list.Add(s);
}
}
if (s == null)
{
if (!File.Exists(filePath))
{
SparseFile.CreateSparse(filePath, file.Length);
}
s = new TorrentFileStream(filePath, file, FileMode.OpenOrCreate, access, FileShare.Read);
Add(s);
}
return(s);
}
internal bool CloseStream(string path)
{
TorrentFileStream s = FindStream(path);
if (s != null)
{
CloseAndRemove(s);
}
return(s != null);
}
private void Add(TorrentFileStream stream)
{
Logger.Log(null, "Opening filestream: {0}", stream.Path);
// If we have our maximum number of streams open, just dispose and dump the least recently used one
if (maxStreams != 0 && list.Count >= list.Capacity)
{
Logger.Log(null, "We've reached capacity: {0}", list.Count);
CloseAndRemove(list[0]);
}
list.Add(stream);
}
private void Add(TorrentFileStream stream)
{
Logger.Log(null, "Opening filestream: {0}", stream.Path);
// If we have our maximum number of streams open, just dispose and dump the least recently used one
if (maxStreams != 0 && Streams.Count >= Streams.Capacity)
{
Logger.Log(null, "We've reached capacity: {0}", Streams.Count);
CloseAndRemove(Streams[0]);
}
Streams.Add(stream);
}
internal TorrentFileStream GetStream(TorrentFile file, FileAccess access)
{
TorrentFileStream s = FindStream(file.FullPath);
if (s != null)
{
// If we are requesting write access and the current stream does not have it
if (((access & FileAccess.Write) == FileAccess.Write) && !s.CanWrite)
{
Logger.Log(null, "Didn't have write permission - reopening");
CloseAndRemove(s);
s = null;
}
else
{
// Place the filestream at the end so we know it's been recently used
list.Remove(s);
list.Add(s);
}
}
if (s == null)
{
if (!File.Exists(file.FullPath))
{
Directory.CreateDirectory(Path.GetDirectoryName(file.FullPath));
NtfsSparseFile.CreateSparse(file.FullPath, file.Length);
}
s = new TorrentFileStream(file, FileMode.OpenOrCreate, access, FileShare.ReadWrite);
// Ensure that we truncate existing files which are too large
if (s.Length > file.Length)
{
if (!s.CanWrite)
{
s.Close();
s = new TorrentFileStream(file, FileMode.OpenOrCreate, FileAccess.ReadWrite, FileShare.ReadWrite);
}
s.SetLength(file.Length);
}
Add(s);
}
return(s);
}
private void CloseAndRemove(TorrentFileStream s)
{
Logger.Log(null, "Closing and removing: {0}", s.Path);
list.Remove(s);
s.Dispose();
}
private void CloseAndRemove(TorrentFileStream s)
{
Logger.Log (null, "Closing and removing: {0}", s.Path);
list.Remove(s);
s.Dispose();
}
