Task SendAndReceive(RelayConnection connection)
{
// implements a simple protocol that uploads and downloads 1MB of data
// since the connection is duplex, this happens in parallel.
Console.WriteLine("Processing connection");
// download
var download = Task.Run(async () =>
{
Console.WriteLine("Downloading 1MByte");
var buf = new byte[1024*1024];
int bytesRead;
do
{
bytesRead = await connection.ReadAsync(buf, 0, buf.Length);
} while (bytesRead > 0);
Console.WriteLine("Download done");
});
// upload
var upload = Task.Run(async () =>
{
Console.WriteLine("Uploading 1MByte");
var buf = new byte[16*1024];
for (var i = 0; i < 1024/16; i++)
{
rnd.NextBytes(buf);
await connection.WriteAsync(buf, 0, buf.Length);
}
await connection.ShutdownAsync();
Console.WriteLine("Upload done");
});
return Task.WhenAll(upload, download);
}
async Task ProcessConnection(RelayConnection connection)
{
// implements a simple protocol that uploads and downloads 1MB of data
// since the connection is duplex, this happens in parallel.
Console.WriteLine("Processing connection");
// download
var download = Task.Run(async () =>
{
Console.WriteLine("downloading data");
var buf = new byte[1024*1024];
int totalBytes = 0, bytesRead;
do
{
totalBytes += bytesRead = await connection.ReadAsync(buf, 0, buf.Length);
}
while (bytesRead > 0);
Console.WriteLine("downloaded complete, {0} bytes", totalBytes);
});
// upload
var upload = Task.Run(async () =>
{
var buf = new byte[1024];
for (var i = 0; i < 1024; i++)
{
Rnd.NextBytes(buf);
await connection.WriteAsync(buf, 0, buf.Length);
}
await connection.ShutdownAsync();
});
Task.WaitAll(upload, download);
connection.Close();
Console.WriteLine("Connection done");
}