YangWX/MQTTnet
1
0
Fork 0
mirror of https://github.com/dotnet/MQTTnet.git synced 2026-10-21 12:16:02 +08:00
Code Issues Packages Projects Releases Wiki Activity

Optimized exception handling and awaits.

Browse Source
This commit is contained in:
Christian Kratky
2017-09-15 15:58:48 +02:00
parent 76105de4c7
commit eda8bff10b
6 changed files with 70 additions and 71 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Frameworks/MQTTnet.NetStandard/Implementations/MqttWebSocketChannel.cs
+5 -16
View File
@@ -1,6 +1,5 @@
using MQTTnet.Core.Channel;
using MQTTnet.Core.Client;
using MQTTnet.Core.Exceptions;
using System;
using System.IO;
using System.Net.WebSockets;
@@ -11,7 +10,7 @@ namespace MQTTnet.Implementations
{
public sealed class MqttWebSocketChannel : IMqttCommunicationChannel, IDisposable
{
private ClientWebSocket _webSocket = new ClientWebSocket();
private ClientWebSocket _webSocket;
public Stream SendStream => RawStream;
public Stream ReceiveStream => RawStream;
@@ -19,25 +18,15 @@ namespace MQTTnet.Implementations
public async Task ConnectAsync(MqttClientOptions options)
{
_webSocket = null;
try
{
_webSocket = new ClientWebSocket();
await _webSocket.ConnectAsync(new Uri(options.Server), CancellationToken.None);
RawStream = new WebSocketStream(_webSocket);
}
catch (WebSocketException exception)
{
throw new MqttCommunicationException(exception);
}
_webSocket = new ClientWebSocket();
await _webSocket.ConnectAsync(new Uri(options.Server), CancellationToken.None);
RawStream = new WebSocketStream(_webSocket);
}
public Task DisconnectAsync()
{
RawStream = null;
return _webSocket.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
return _webSocket?.CloseAsync(WebSocketCloseStatus.NormalClosure, string.Empty, CancellationToken.None);
}
public void Dispose()
Frameworks/MQTTnet.NetStandard/Implementations/WebSocketStream.cs
+15 -16
View File
@@ -9,12 +9,26 @@ namespace MQTTnet.Implementations
public class WebSocketStream : Stream
{
private readonly ClientWebSocket _webSocket;
public WebSocketStream(ClientWebSocket webSocket)
{
_webSocket = webSocket;
}
public override bool CanRead => true;
public override bool CanSeek => false;
public override bool CanWrite => true;
public override long Length => throw new NotSupportedException();
public override long Position
{
get => throw new NotSupportedException();
set => throw new NotSupportedException();
}
public override void Flush()
{
}
@@ -52,21 +66,6 @@ namespace MQTTnet.Implementations
WriteAsync(buffer, offset, count).GetAwaiter().GetResult();
}
public override bool CanRead => true;
public override bool CanSeek => false;
public override bool CanWrite => true;
public override long Length
{
get { throw new NotSupportedException(); }
}
public override long Position
{
get { throw new NotSupportedException(); }
set { throw new NotSupportedException(); }
}
public override long Seek(long offset, SeekOrigin origin)
{
throw new NotSupportedException();