public async Task <RocketResult> ReceiveStreamAsync(MemoryStream stream, CancellationToken token)
{
var result = new RocketResult();
try {
await mReceiveLock.WaitAsync(token);
stream.Seek(0, SeekOrigin.Begin);
var buffer = new ArraySegment <byte>(new byte[8192]);
IWebSocketReceiveResult socketResult = null;
do
{
socketResult = await mSocket.ReceiveAsync(buffer, token);
if (socketResult.MessageType == WebSocketMessageType.Close)
{
await mSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, "normal closure", token);
return(result.SetClosed());
}
stream.Write(buffer.Array, buffer.Offset, socketResult.Count);
} while (!socketResult.EndOfMessage);
stream.Seek(0, SeekOrigin.Begin);
return(result);
} catch (WebSocketException ex) {
return(result.SetException(ex)
.SetClosed());
} finally {
try {
mReceiveLock.Release();
} catch (SemaphoreFullException) { }
}
}
public async Task <RocketResult> SendStreamAsync(MemoryStream stream, CancellationToken token)
{
var result = new RocketResult();
try {
await mSendLock.WaitAsync(token);
await mSocket.SendAsync(GetBuffer(stream),
WebSocketMessageType.Binary,
true,
token);
return(result);
} catch (WebSocketException ex) {
return(result.SetException(ex)
.SetClosed());
} finally {
try {
mSendLock.Release();
} catch (SemaphoreFullException) { }
}
}