/// <summary>
/// Sends a message to the server.
/// </summary>
/// <param name="message">The message to send.</param>
/// <returns>The task of sending the message to the websocket</returns>
protected override async Task SendMessageInternalAsync(string message)
{
await this.webSocketTask.ConfigureAwait(false);
this.webSocketTask.Wait();
using (HttpResponseMessage response = this.webSocketTask.Result)
{
if (!response.IsSuccessStatusCode)
{
throw await DevicePortalException.CreateAsync(response);
}
}
}
#pragma warning restore 1998
/// <summary>
/// Starts listening for messages from the websocket.
/// Once they are received they are parsed and the WebSocketMessageReceived event is raised.
/// </summary>
/// <returns>The task of listening for messages from the websocket.</returns>
protected override async Task StartListeningForMessagesInternalAsync()
{
this.IsListeningForMessages = true;
this.keepListeningForMessages = true;
try
{
while (this.keepListeningForMessages)
{
await this.webSocketTask.ConfigureAwait(false);
using (HttpResponseMessage response = this.webSocketTask.Result)
{
if (!response.IsSuccessStatusCode)
{
throw await DevicePortalException.CreateAsync(response);
}
using (HttpContent content = response.Content)
{
MemoryStream dataStream = new MemoryStream();
await content.CopyToAsync(dataStream).ConfigureAwait(false);
// Ensure we return with the stream pointed at the origin.
dataStream.Position = 0;
this.ConvertStreamToMessage(dataStream);
}
}
}
}
catch
{
}
finally
{
this.stoppedReceivingMessages.Set();
this.IsListeningForMessages = false;
}
}