大约有 800 项符合查询结果(耗时:0.0185秒) [XML]

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Sockets: Discover port availability using Java

...ng the DatagramSocket as well to check if the port is avaliable in UDP and TCP. Hope this helps. share | improve this answer | follow | ...
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Telnet is not recognized as internal or external command [closed]

I am trying to perform port forwarding to connect two emulators using TCP protocol on Windows. Although I have enabled TCP client program from control Panel, "telnet" command is not recognized in Command Prompt. Could anyone help me to fix this? ...
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In what situations would AJAX long/short polling be preferred over HTML5 WebSockets?

... support chart (full) | wikipedia WebSockets - client ↔ server. Create a TCP connection to the server, and keep it open as long as needed. The server or client can easily close the connection. The client goes through an HTTP compatible handshake process. If it succeeds, then the server and client ...
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Simulate delayed and dropped packets on Linux

I would like to simulate packet delay and loss for UDP and TCP on Linux to measure the performance of an application. Is there a simple way to do this? ...
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How to fix Error: listen EADDRINUSE while using nodejs?

... process ID (PID) of the process running on that port (say 8888): lsof -i tcp:8888 This will return something like: COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME node 57385 You 11u IPv6 0xac745b2749fd2be3 0t0 TCP *:ddi-tcp-1 (LISTEN) Then just do (ps - ...
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WebRTC vs Websockets: If WebRTC can do Video, Audio, and Data, why do I need Websockets? [closed]

...er only. Only supports reliable, in-order transport because it is built On TCP. This means packet drops can delay all subsequent packets. WebRTC: Just beginning to be supported by Chrome and Firefox. MS has proposed an incompatible variant. The DataChannel component is not yet compatible betwee...
https://www.fun123.cn/reference/iot/MQTT.html 

App Inventor 2 UrsPahoMqttClient 拓展 - 物联网轻量级MQTT协议 · App Inventor 2 中文网

... MQTT 发明于 1999 年,为物联网设计的轻量级协议,基于TCP协议实现。 MQTT 协议文档:https://mqtt.org/ 虽然 App Inventor 有现成的 MQTT 扩展,但它们需要额外的 JavaScript 或外部配置文件。此处介绍的 MQTT 客户端组件完全独...
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How does libuv compare to Boost/ASIO?

... async-only Asio SSL: no Asio TCP: async-only Asio UDP: async-only Asio Signal: Handling: yes Asio Sending: yes no IPC: UNIX Domain Sockets: yes ...
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How to write a scalable Tcp/Ip based server

...the design phase of writing a new Windows Service application that accepts TCP/IP connections for long running connections (i.e. this is not like HTTP where there are many short connections, but rather a client connects and stays connected for hours or days or even weeks). ...
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How to fix java.net.SocketException: Broken pipe?

...hile I was developing a simple Java application that listens on a specific TCP. Usually, I had no problem, but when I run some stress test I noticed that some connection broke with error socket write exception. After Investigation I found a solution that solves my problem. I know this question is q...