internal void callProgressChanged(TransferQueue queue)
{
if (ProgressChanged != null)
{
ProgressChanged(this, queue);
}
}
public void StartTransfer(TransferQueue queue)
{
PacketWriter pw = new PacketWriter();
pw.Write((byte)Headers.Start);
pw.Write(queue.ID);
Send(pw.GetBytes());
}
public void PauseTransfer(TransferQueue queue)
{
if (queue.Type == QueueType.Upload)
{
queue.Pause();
return;
}
PacketWriter pw = new PacketWriter();
pw.Write((byte)Headers.Pause);
pw.Write(queue.ID);
Send(pw.GetBytes());
}
public void StopTransfer(TransferQueue queue)
{
if (queue.Type == QueueType.Upload)
{
queue.Stop();
}
PacketWriter pw = new PacketWriter();
pw.Write((byte)Headers.Stop);
pw.Write(queue.ID);
Send(pw.GetBytes());
queue.Close();
}
public static TransferQueue CreateDownloadQueue(TransferClient client, int id, string savename, long lenght)
{
try
{
var queu = new TransferQueue();
queu.FileName = Path.GetFileName(savename);
queu.Client = client;
queu.Type = QueueType.Download;
queu.FS = new FileStream(savename, FileMode.Create);
queu.FS.SetLength(lenght);
queu.Length = lenght;
queu.ID = id;
return(queu);
}
catch
{
return(null);
}
}
public static TransferQueue CreateUploadQueue(TransferClient client, string filename)
{
try
{
var queu = new TransferQueue();
queu.FileName = Path.GetFileName(filename);
queu.Client = client;
queu.Type = QueueType.Upload;
queu.FS = new FileStream(filename, FileMode.Open);
queu.Thread = new Thread(new ParameterizedThreadStart(transferProc));
queu.Thread.IsBackground = true;
queu.ID = App.Rand.Next();
queu.Length = queu.FS.Length;
return(queu);
}
catch
{
return(null);
}
}
public void QueueTransfer(string filename)
{
try
{
TransferQueue queue = TransferQueue.CreateUploadQueue(this, filename);
_transfers.Add(queue.ID, queue);
PacketWriter pw = new PacketWriter();
pw.Write((byte)Headers.Queue);
pw.Write(queue.ID);
pw.Write(queue.FileName);
pw.Write(queue.Length);
Send(pw.GetBytes());
if (Queued != null)
{
Queued(this, queue);
}
}
catch
{
}
}
private static void transferProc(object o)
{
TransferQueue queue = (TransferQueue)o;
while (queue.Running && queue.Index < queue.Length)
{
queue.pauseEnevt.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 pw = new PacketWriter();
pw.Write((byte)Headers.Chunk);
pw.Write(queue.ID);
pw.Write(queue.Index);
pw.Write(read);
pw.Write(file_buffer, 0, read);
queue.TransferRead += read;
queue.Index += read;
queue.Client.Send(pw.GetBytes());
queue.Progress = (int)((queue.TransferRead * 100) / queue.Length);
if (queue.LastProgress < queue.Progress)
{
queue.LastProgress = queue.Progress;
queue.Client.callProgressChanged(queue);
}
Thread.Sleep(1);
}
}
queue.Close();
}
private void process()
{
PacketReader pr = new PacketReader(_buffer);
Headers header = (Headers)pr.ReadByte();
switch (header)
{
case Headers.Queue:
{
int id = pr.ReadInt32();
string filename = pr.ReadString();
long lenght = pr.ReadInt64();
TransferQueue queue = TransferQueue.CreateDownloadQueue(this, id, Path.Combine(OutputFolder, Path.GetFileName(filename)), lenght);
_transfers.Add(id, queue);
if (Queued != null)
{
Queued(this, queue);
}
}
break;
case Headers.Start:
{
int id = pr.ReadInt32();
if (_transfers.ContainsKey(id))
{
_transfers[id].Start();
}
}
break;
case Headers.Stop:
{
int id = pr.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 = pr.ReadInt32();
if (_transfers.ContainsKey(id))
{
_transfers[id].Pause();
}
}
break;
case Headers.Chunk:
{
int id = pr.ReadInt32();
long index = pr.ReadInt64();
int size = pr.ReadInt32();
byte[] buffer = pr.ReadBytes(size);
TransferQueue queue = _transfers[id];
queue.Write(buffer, index);
queue.Progress = (int)((queue.TransferRead * 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;
}
pr.Dispose();
}
