使用ZeroMQ实现CS通信

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ZeroMQ比直接用Socket通信好用很多，下面附代码实现client-server的通信。

client.c

/* * filename:client.c * author: yann */#include<zmq.h>#include<stdio.h>#include<unistd.h>#define MAX_BUFFER_SIZE 4096int main(int argc, char * argv[]){    void * pCtx = NULL;    void * pSock = NULL;    const char * pAddr = "tcp://127.0.0.1:7767";    if((pCtx = zmq_ctx_new())==NULL){        return 0;    }    if((pSock = zmq_socket(pCtx, ZMQ_DEALER))==NULL){        zmq_ctx_destroy(pCtx);        return 0;    }    if(zmq_connect(pSock, pAddr)<0){        zmq_close(pSock);        zmq_ctx_destroy(pCtx);        return 0;    }    while(1){        static int i = 0;        char buff[MAX_BUFFER_SIZE];        gets(buff);        zmq_send(pSock, buff, MAX_BUFFER_SIZE, 0);        printf("send:%s\n", buff);        zmq_recv(pSock, buff, MAX_BUFFER_SIZE, 0);        printf("receive:%s\n", buff);    }    zmq_close(pSock);    zmq_ctx_destroy(pCtx);    return 0;}

server.c

/* * filename:server.c * author: yann */#include<zmq.h>#include<stdio.h>#include<stdlib.h>#include<string.h>int main(int argc, char * argv[]){void * pCtx = NULL;void * pSock = NULL;const char * pAddr = "tcp://*:7767";if((pCtx = zmq_ctx_new()) == NULL){return 0;}if((pSock = zmq_socket(pCtx, ZMQ_DEALER))==NULL){zmq_ctx_destroy(pCtx);return 0;}if(zmq_bind(pSock, pAddr)<0){zmq_close(pSock);zmq_ctx_destroy(pCtx);return 0;}while(1){        char buff[4096];memset(buff, 0, sizeof(buff));zmq_recv(pSock, buff, sizeof(buff), 0);printf("receive: %s\n", buff);        zmq_send(pSock, buff, sizeof(buff), 0);        printf("send: %s\n", buff);}    zmq_close(pSock);    zmq_ctx_destroy(pCtx);return 0;}

编译运行：

gcc -o client client.c -lzmq

gcc -o server server.c -lzmq

运行程序，即可实现client-server的通信。其中client和server开启的顺序是没有关系的。

-lzmq是链接zmq库文件，会在安装zmq的时候生成，具体的安装zmq的教程之后可能会写，需要的可以私信我。

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