// Send a message through a specific dataWriter
public async void SendMessageToPeer(String message, ConnectedPeer connectedPeer)
{
try
{
if (!connectedPeer._socketClosed)
{
DataWriter dataWriter = connectedPeer._dataWriter;
uint msgLength = dataWriter.MeasureString(message);
dataWriter.WriteInt32((int)msgLength);
dataWriter.WriteString(message);
uint numBytesWritten = await dataWriter.StoreAsync();
if (numBytesWritten > 0)
{
OnRaiseMessageEvent(new MessageEventArgs("Sent message: " + message + ", number of bytes written: " + numBytesWritten));
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
}
}
catch (Exception err)
{
if (!connectedPeer._socketClosed)
{
OnRaiseSocketErrorEvent(new SocketEventArgs("Failed to send message with error: " + err.Message));
}
}
}
// Start the send receive operations
void PeerFinder_StartSendReceive(StreamSocket socket, PeerInformation peerInformation)
{
ConnectedPeer connectedPeer = new ConnectedPeer(socket, false, new Windows.Storage.Streams.DataWriter(socket.OutputStream));
_socketHelper.Add(connectedPeer);
if (!_peerFinderStarted)
{
_socketHelper.CloseSocket();
return;
}
PeerFinder_ConnectionGrid.Visibility = Visibility.Visible;
PeerFinder_SendButton.Visibility = Visibility.Visible;
PeerFinder_MessageBox.Visibility = Visibility.Visible;
PeerFinder_SendToPeerList.Visibility = Visibility.Visible;
if (peerInformation != null)
{
// Add a new peer to the list of peers.
ComboBoxItem item = new ComboBoxItem();
item.Content = peerInformation.DisplayName;
PeerFinder_SendToPeerList.Items.Add(item);
PeerFinder_SendToPeerList.SelectedIndex = 0;
}
// Hide the controls related to setting up a connection
PeerFinder_AcceptButton.Visibility = Visibility.Collapsed;
PeerFinder_BrowseGrid.Visibility = Visibility.Collapsed;
PeerFinder_AdvertiseGrid.Visibility = Visibility.Collapsed;
_socketHelper.StartReader(connectedPeer);
}
public async void StartReader(ConnectedPeer connectedPeer)
{
try
{
using (var socketReader = new Windows.Storage.Streams.DataReader(connectedPeer._socket.InputStream))
{
// Read the message sent by the remote peer
uint bytesRead = await socketReader.LoadAsync(sizeof(uint));
if (bytesRead > 0)
{
uint strLength = (uint)socketReader.ReadUInt32();
bytesRead = await socketReader.LoadAsync(strLength);
if (bytesRead > 0)
{
String message = socketReader.ReadString(strLength);
OnRaiseMessageEvent(new MessageEventArgs("Got message: " + message));
StartReader(connectedPeer); // Start another reader
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
socketReader.DetachStream();
}
}
catch (Exception e)
{
if (!connectedPeer._socketClosed)
{
OnRaiseSocketErrorEvent(new SocketEventArgs("Reading from socket failed: " + e.Message));
}
}
}
public void Add(ConnectedPeer p)
{
_connectedPeers.Add(p);
}
public async void StartReader(ConnectedPeer connectedPeer)
{
try
{
using (var socketReader = new Windows.Storage.Streams.DataReader(connectedPeer._socket.InputStream))
{
// Read the message sent by the remote peer
uint bytesRead = await socketReader.LoadAsync(sizeof(uint));
if (bytesRead > 0)
{
uint strLength = (uint)socketReader.ReadUInt32();
bytesRead = await socketReader.LoadAsync(strLength);
if (bytesRead > 0)
{
String message = socketReader.ReadString(strLength);
OnRaiseMessageEvent(new MessageEventArgs("Got message: " + message));
StartReader(connectedPeer); // Start another reader
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
socketReader.DetachStream();
}
}
catch (Exception e)
{
if (!connectedPeer._socketClosed)
{
OnRaiseSocketErrorEvent(new SocketEventArgs("Reading from socket failed: " + e.Message));
}
}
}
// Send a message through a specific dataWriter
public async void SendMessageToPeer(String message, ConnectedPeer connectedPeer)
{
try
{
if (!connectedPeer._socketClosed)
{
DataWriter dataWriter = connectedPeer._dataWriter;
uint msgLength = dataWriter.MeasureString(message);
dataWriter.WriteInt32((int)msgLength);
dataWriter.WriteString(message);
uint numBytesWritten = await dataWriter.StoreAsync();
if (numBytesWritten > 0)
{
OnRaiseMessageEvent(new MessageEventArgs("Sent message: " + message + ", number of bytes written: " + numBytesWritten));
}
else
{
OnRaiseSocketErrorEvent(new SocketEventArgs("The remote side closed the socket"));
}
}
}
catch (Exception err)
{
if (!connectedPeer._socketClosed)
{
OnRaiseSocketErrorEvent(new SocketEventArgs("Failed to send message with error: " + err.Message));
}
}
}
public void Add(ConnectedPeer p)
{
_connectedPeers.Add(p);
}
