c++ - 在两个不同的程序之间发送/接收数据

Question

我主要在这里寻找一些建议。

我正在开发一个应用程序，其中主要处理(存储在服务器上)是用 C++ 执行的，GUI(前端)是用 Python 执行的。这两个程序将相互通信。 Python 将发送 C++ 程序运行所需的文件，并为 C++ 程序提供一些数据以供处理。后端随后将与处理后的数据进行通信。

因此使用套接字会更好吗？我想过使用文本文件来完成这个，但是，已经放弃了这个想法，而是将数据保存为 .txt 文件，以便将来可以打开它。另外，如果我要使用套接字，使用 Python/C++ 会不会有任何冲突？

Answer 1

尝试 ZeroMQ

ØMQ (also known as ZeroMQ, 0MQ, or zmq) looks like an embeddable networking library but acts like a concurrency framework. It gives you sockets that carry atomic messages across various transports like in-process, inter-process, TCP, and multicast. You can connect sockets N-to-N with patterns like fan-out, pub-sub, task distribution, and request-reply. It's fast enough to be the fabric for clustered products. Its asynchronous I/O model gives you scalable multicore applications, built as asynchronous message-processing tasks. It has a score of language APIs and runs on most operating systems. ØMQ is from iMatix and is LGPLv3 open source.

C++ Hello World 服务器:

//
//  Hello World server in C++
//  Binds REP socket to tcp://*:5555
//  Expects "Hello" from client, replies with "World"
//
#include <zmq.hpp>
#include <string>
#include <iostream>
#ifndef _WIN32
#include <unistd.h>
#else
#include <windows.h>
#endif

int main () {
    //  Prepare our context and socket
    zmq::context_t context (1);
    zmq::socket_t socket (context, ZMQ_REP);
    socket.bind ("tcp://*:5555");

    while (true) {
        zmq::message_t request;

        //  Wait for next request from client
        socket.recv (&request);
        std::cout << "Received Hello" << std::endl;

        //  Do some 'work'
#ifndef _WIN32
        sleep(1);
#else
    Sleep (1);
#endif

        //  Send reply back to client
        zmq::message_t reply (5);
        memcpy ((void *) reply.data (), "World", 5);
        socket.send (reply);
    }
    return 0;
}

Python 客户端:

#
#   Hello World client in Python
#   Connects REQ socket to tcp://localhost:5555
#   Sends "Hello" to server, expects "World" back
#
import zmq

context = zmq.Context()

#  Socket to talk to server
print "Connecting to hello world server…"
socket = context.socket(zmq.REQ)
socket.connect("tcp://localhost:5555")

#  Do 10 requests, waiting each time for a response
for request in range(10):
    print "Sending request %s …" % request
    socket.send("Hello")

    #  Get the reply.
    message = socket.recv()
    print "Received reply %s [ %s ]" % (request, message)