问题描述
在Asp.NET Core 3.1的主要WebSockets简介页面上,它讨论了在Startup.cs中将WebSockets的“ ReceiveBufferSize”设置为4,096:
var webSocketOptions = new WebSocketOptions()
{
KeepAliveInterval = TimeSpan.FromSeconds(120),ReceiveBufferSize = 4 * 1024 // <--- this line in particular
};
app.UseWebSockets(webSocketOptions);
此外,在“ Echo”示例代码中,还有另一个类似的“ buffer”大小也被设置为4,096,该大小在WebSocket.ReceiveAsync()方法中使用:
private async Task Echo(HttpContext context,WebSocket webSocket)
{
var buffer = new byte[1024 * 4]; // <--- this line in particular
WebSocketReceiveResult result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer),CancellationToken.None);
while (!result.CloseStatus.HasValue)
{
await webSocket.SendAsync(new ArraySegment<byte>(buffer,result.Count),result.MessageType,result.EndOfMessage,CancellationToken.None);
result = await webSocket.ReceiveAsync(new ArraySegment<byte>(buffer),CancellationToken.None);
}
await webSocket.CloseAsync(result.CloseStatus.Value,result.CloseStatusDescription,CancellationToken.None);
}
这两个值之间有什么区别?它们是否必须相同,还是一个优先于另一个?
解决方法
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