使用网络库提供状态信息的 TCP 服务器
我正在为在线回合制游戏编写 TCP 服务器。我已经使用 php 套接字编写了一个原型，但想转向 C++。我一直在研究流行的网络库（ASIO、ACE、POCO、LibEvent），但目前不清楚哪一个最适合我的需求：
1）连接是持久的（大约几分钟），并且服务器必须能够处理 100 多个并发连接。
2) 连接必须能够维护状态信息（用户登录信息）。 [我的 php 原型当前要求每个客户端请求包含登录信息]
3) 可选且最好是多线程，但单个进程。最好不要每个连接有 1 个线程，而是在所有打开的连接上使用固定数量的线程。
我倾向于 POCO 的 TCPServer 或 Reactor 框架，但不确定它们是否满足我的要求。我认为 Reactor 是单线程的，而 TCPServer 强制执行 1:1 线程/连接。我说得对吗？
无论哪种情况，我都不确定如何执行最重要的任务，将登录信息与随机进出的连接关联到特定连接。
I'm writing a tcp server for an online turn-based game. I've already written a prototype using php sockets, but would like to move to C++. I've been looking at the popular network libraries (ASIO, ACE, POCO, LibEvent), but currently unclear which one would best suit my needs:
1) Connections are persistent (on the order of minutes), and the server must be able to handle 100+ simultaneous connections.
2) Connections must be able to maintain state information (user login info). [my php prototype currently requires each client request to contain the login info]
3) Optionally and preferably multi-threaded, but a single process. Prefer not to have 1 thread per connection, but a fixed number of threads working on all open connections.
I'm leaning towards POCO's TCPServer or Reactor frameworks, but not exactly sure if they meet my requirements. I think the Reactor is single threaded, and the TCPServer enforces 1:1 threading/connection. Am I correct?
In either case case, I'm not exactly sure how to do the most important task of associating login info to a specific connection with connections coming and going at random.
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Boost.Asio 应该可以满足您的要求。反应器队列可以由多个线程提供服务。使用异步方法将使您能够设计 为所有连接提供服务的固定线程数。
教程和示例可能是最好的起点。
Boost.Asio should meet your requirements. The reactor queue can be serviced by multiple threads. Using asynchronous methods will enable your design of a fixed number of threads servicing all connections.
The tutorials and examples are probably the best place to start if you are unfamiliar with the library.
您还可以看看 MUSCLE，这是我用它编写的一个多用户网络库和服务器考虑到这种应用程序。它获得 BSD 许可，可处理数百个用户，并包含一个服务器端数据库机制，用于存储和共享您希望客户端相互了解的任何信息。默认情况下，服务器是单线程的，但我在实践中没有发现这是一个问题（如果有必要，可以将服务器扩展为多线程）。
You might also take a look at MUSCLE, a multi-user networking library and server I wrote with this sort of application in mind. It's BSD-licensed, handles hundreds of users, and includes a server-side database mechanism for storing and sharing any information you want the clients to know about each other. The server is single-threaded by default, but I haven't found that to be a problem in practice (and it's possible to extend the server to be multithreaded if that turns out to be necessary).