private void handleTransferHeader(object sender, ProgressChangedEventArgs e, int index)
{
if ((int)e.UserState == TransferStatus.COMPLETE)
{
TransferHeader header1 = (TransferHeader)(Util.deserialize(responseStream));
// fie primeste un header pt permisiune fie primeste inapoi headerul cu tot cu permisiune
if (header1.transferPermission == TransferPermission.REJECTED)
{
return;
}
if (header1.transferPermission == TransferPermission.UNKNOWN)
{
// to do: request permission for receiving this
header1.transferPermission = TransferPermission.ACCEPTED;
handshakeClient.sendData(header1.sourceIp, 2700, Util.serialize(header1));
return;
}
if (header1.transferPermission == TransferPermission.ACCEPTED)
{
sendChunks(header1);
}
}
}
/// <summary>
/// Creates a new Gatherer
/// </summary>
/// <param name="header">header structure transfered between handhshaking clients</param>
public Gatherer(TransferHeader header)
{
this.header = header;
inputStream = new FileStream(header.filePath, FileMode.Open);
chunkSize = 1 + header.fileSize / header.nOfStreams;
_streamsRead = 0;
}
/// <summary>
/// Creates a new Gatherer
/// </summary>
/// <param name="header">header structure transfered between handhshaking clients</param>
public Gatherer(TransferHeader header)
{
this.header = header;
inputStream = new FileStream(header.filePath, FileMode.Open);
chunkSize = 1 + header.fileSize / header.nOfStreams;
_streamsRead = 0;
}
private void selectFileButton_Click(object sender, EventArgs e)
{
FileDialog fileDialog = new OpenFileDialog();
DialogResult result = fileDialog.ShowDialog();
if (result == DialogResult.OK)
{
TransferHeader transferHeader = new TransferHeader(fileDialog.FileName, nOfStreams);
handshakeClient.sendData(ipTextBox.Text, 2700, Util.serialize(transferHeader));
}
}
private void sendChunks(TransferHeader header)
{
fileClients = new List <DataClient>();
gatherer = new Gatherer(header);
for (int i = 0; i < header.nOfStreams; i++)
{
fileClients.Add(new DataClient(i + 1, 2700 + i + 1, new FileStream("chunk" + i.ToString() + ".txt", FileMode.Create), handleTransferChunk, false));
fileClients[i].sendData(header.sourceIp, 2700 + i + 1, gatherer.getNextChunk());
}
}
private void sendChunks(TransferHeader header)
{
fileClients = new List<DataClient>();
gatherer = new Gatherer(header);
for (int i = 0; i < header.nOfStreams; i++)
{
fileClients.Add(new DataClient(i+1, 2700 + i + 1, new FileStream("chunk" + i.ToString() + ".txt", FileMode.Create), handleTransferChunk, false));
fileClients[i].sendData(header.sourceIp, 2700 + i + 1, gatherer.getNextChunk());
}
}
private void selectFileButton_Click(object sender, EventArgs e)
{
FileDialog fileDialog = new OpenFileDialog();
DialogResult result = fileDialog.ShowDialog();
if (result == DialogResult.OK)
{
TransferHeader transferHeader = new TransferHeader(fileDialog.FileName, nOfStreams);
handshakeClient.sendData(ipTextBox.Text, 2700, Util.serialize(transferHeader));
}
}
