internal void callCompleted(TransferQueue queue)
{
if (Complete != null)
{
Complete(this, queue);
}
}
internal void callProgressChanged(TransferQueue queue)
{
if (ProgressChanged != null)
{
ProgressChanged(this, queue);
}
}
public void StartTransfer(TransferQueue queue)
{
PacketWriter packetWriter = new PacketWriter();
packetWriter.Write((byte)Headers.Start);
packetWriter.Write(queue.Id);
Send(packetWriter.GetBytes());
}
public void PauseTransfer(TransferQueue queue)
{
if (queue.Type == QueueType.Upload)
{
queue.Pause();
}
if (Paused != null)
{
Paused(this, queue);
}
PacketWriter packetWriter = new PacketWriter();
packetWriter.Write((byte)Headers.Pause);
packetWriter.Write(queue.Id);
Send(packetWriter.GetBytes());
}
private static void transferProc(object obj)
{
TransferQueue queue = (TransferQueue)obj;
while (queue.Running && queue.Index < queue.Length)
{
queue.pauseEvent.WaitOne();
if (!queue.Running)
{
break;
}
lock (file_buffer)
{
queue.FS.Position = queue.Index;
int read = queue.FS.Read(file_buffer, 0, file_buffer.Length);
PacketWriter packetWriter = new PacketWriter();
packetWriter.Write((byte)Headers.Chunk);
packetWriter.Write(queue.Id);
packetWriter.Write(queue.Index);
packetWriter.Write(read);
packetWriter.Write(file_buffer, 0, read);
queue.Transferred += read;
queue.Index += read;
queue.Client.Send(packetWriter.GetBytes());
queue.Progress = (int)((queue.Transferred * 100) / queue.Length);
if (queue.LastProgress < queue.Progress)
{
queue.LastProgress = queue.Progress;
queue.Client.callProgressChanged(queue);
}
Thread.Sleep(1);
}
}
queue.Client?.callCompleted(queue);
queue.Close();
}
public static TransferQueue CreateDownloadQueue(TransferClient client, int id, string saveName, long length)
{
try
{
var queue = new TransferQueue();
queue.Filename = Path.GetFileName(saveName);
queue.Client = client;
queue.Type = QueueType.Download;
queue.FS = new FileStream(saveName, FileMode.Create);
queue.FS.SetLength(length);
queue.Length = length;
queue.Id = id;
return(queue);
}
catch (Exception)
{
return(null);
}
}
public void StopTransfer(TransferQueue queue)
{
if (queue.Type == QueueType.Upload)
{
queue.Stop();
}
if (Stopped != null)
{
Stopped(this, queue);
}
PacketWriter packetWriter = new PacketWriter();
packetWriter.Write((byte)Headers.Stop);
packetWriter.Write(queue.Id);
Send(packetWriter.GetBytes());
queue.Close();
}
public static TransferQueue CreateUploadQueue(TransferClient client, string fileName)
{
try
{
var queue = new TransferQueue();
queue.Filename = fileName;
queue.Client = client;
queue.Type = QueueType.Upload;
queue.FS = new FileStream(fileName, FileMode.Open);
queue.Thread = new Thread(new ParameterizedThreadStart(transferProc));
queue.Thread.IsBackground = true;
queue.Id = App.Random.Next();
queue.Length = queue.FS.Length;
return(queue);
}
catch (Exception)
{
return(null);
}
}
public void QueueTransfer(string fileName)
{
try
{
TransferQueue queue = TransferQueue.CreateUploadQueue(this, fileName);
_transfers.Add(queue.Id, queue);
PacketWriter packetWriter = new PacketWriter();
packetWriter.Write((byte)Headers.Queue);
packetWriter.Write(queue.Id);
packetWriter.Write(queue.Filename);
packetWriter.Write(queue.Length);
Send(packetWriter.GetBytes());
if (Queued != null)
{
Queued(this, queue);
}
}
catch (Exception)
{
}
}
private void process()
{
PacketReader packetReader = new PacketReader(_buffer);
Headers header = (Headers)packetReader.ReadByte();
switch (header)
{
case Headers.Queue:
{
int id = packetReader.ReadInt32();
string fileName = packetReader.ReadString();
long length = packetReader.ReadInt64();
TransferQueue queue = TransferQueue.CreateDownloadQueue(this, id, Path.Combine(OutputFolder, Path.GetFileName(fileName)), length);
_transfers.Add(id, queue);
if (Queued != null)
{
Queued(this, queue);
}
}
break;
case Headers.Start:
{
int id = packetReader.ReadInt32();
if (_transfers.ContainsKey(id))
{
_transfers[id].Start();
}
}
break;
case Headers.Stop:
{
int id = packetReader.ReadInt32();
if (_transfers.ContainsKey(id))
{
TransferQueue queue = _transfers[id];
queue.Stop();
queue.Close();
if (Stopped != null)
{
Stopped(this, queue);
}
_transfers.Remove(id);
}
}
break;
case Headers.Pause:
{
int id = packetReader.ReadInt32();
if (_transfers.ContainsKey(id))
{
TransferQueue queue = _transfers[id];
if (queue.Type == QueueType.Upload)
{
queue.Pause();
}
if (Paused != null)
{
Paused(this, queue);
}
}
}
break;
case Headers.Chunk:
{
int id = packetReader.ReadInt32();
long index = packetReader.ReadInt64();
int size = packetReader.ReadInt32();
byte[] buffer = packetReader.ReadBytes(size);
TransferQueue queue = _transfers[id];
queue.Write(buffer, index);
queue.Progress = (int)((queue.Transferred * 100) / queue.Length);
if (queue.LastProgress < queue.Progress)
{
queue.LastProgress = queue.Progress;
if (ProgressChanged != null)
{
ProgressChanged(this, queue);
}
if (queue.Progress == 100)
{
queue.Close();
if (Complete != null)
{
Complete(this, queue);
}
}
}
}
break;
default:
break;
}
packetReader.Dispose();
}
