简体繁体 English

如何进行简单，可靠的网络消息传递？

[英]How to do simple, reliable network messaging?

原文 2012-01-21 12:08:52 1 4 python/ c/ networking/ network-programming

I'm using sockets for communication between various processes right now. 我现在正在使用套接字在各个进程之间进行通信。 Everything is running on the same machine, so there is no packet loss, and I also don't get read timeouts etc. The messages are typically small blobs of data (JSON, sometimes binary.) Now I want to do cross-machine communication. 一切都在同一台机器上运行，因此没有数据包丢失，而且我也没有收到读取超时等信息。消息通常是小的数据块（JSON，有时是二进制）。现在，我想进行跨机器通信。 The client/server connection usually looks like this: The client tells the server to start some processing (passing in the task description), the server does the work and communicates progress back, and the client can optionally send a terminate message inbetween. 客户端/服务器连接通常如下所示：客户端告诉服务器开始一些处理（传递任务描述），服务器完成工作并回传进度，客户端可以选择在两者之间发送终止消息。 Once finished, the server remains listening while the client is completely disconnected (ie the session is finished, starting a new task starts a new session.) 完成后，在客户端完全断开连接的同时，服务器仍在侦听（即，会话完成，开始新任务将启动新会话）。

How should I implement the communication? 我应该如何实现沟通？ I can easily continue using sockets over the network, but my understanding is that I'll now need to add lots of error handling to identify when a message didn't get through and communicate that somehow back to the server. 我可以轻松地继续通过网络使用套接字，但是我的理解是，我现在需要添加许多错误处理，以识别消息何时没有通过并将其以某种方式传达给服务器。 All I want is just send(message, target) and rest assured that the complete message gets transmitted; 我想要的只是send(message, target)并放心完整的消息会被传输； plus some notification when the other side is dead. 当另一侧死亡时，再加上一些通知。 I've seen that there are a few libraries like zero-mq which claim to do exactly that but also much more, and I'm not sure if such a messaging library is actually necessary. 我已经看到有一些像zero-mq这样的库声称可以做到这一点，但还有更多，我不确定是否真的需要这样的消息传递库。 Is there some easy to use library out there to do some basic communication? 是否有一些易于使用的库可以进行一些基本的交流？

I'm using C++ & Python, and BSD style-licenses are definitely strongly preferred for libraries. 我使用的是C ++和Python，BSD样式许可绝对是库的首选。 The library should also be rather stable, as the communication part is nothing really crucial and I'd like to be able to stick with one solution. 库也应该相当稳定，因为通信部分并没有真正重要的意义，我希望能够坚持使用一种解决方案。

4 个解决方案

TCP guarantees all pagackes are passed to destination [It does the re-send for you if it didn't]. TCP保证所有小包都传递到目标[如果没有，它将为您重新发送]。 So, if you use it - it will probably take more time [compared to single machine], but correctness of msg transmissions remains. 因此，如果您使用它-与单机相比，可能会花费更多时间，但是msg传输的正确性仍然存在。

You should check out ZeroMQ . 您应该签出ZeroMQ 。 It has a simpler interface than pure BSD sockets, it more portable and has excellent documentation. 与纯BSD插槽相比，它具有更简单的界面，更轻便的功能以及出色的文档资料。