linux zeromq

本人在centos下安装zeromq

1.下载最新版的zeromq

    http://download.zeromq.org/

2 解压

    tar -xvf zeromq-3.1.0-beta.tar.gz

3 运行configure

  ./configure --prefix=/data/zeromq  PKG_CONFIG_PATH="/data/sodium/lib/pkgconfig/"    (prefix  指定安装目录)

　出现问题：

configure: error: Package requirements (libsodium >= 0.0.0) were not met

参考：
http://www.cnblogs.com/jim-hwg/p/4952349.html

　这里最好使用

libsodium-1.0.3 小于等于版本。
cd /home/shengkaishan/software/libsodium-1.0.3
./configure --prefix=/data/sodium
make
make install

4. make

5. make install

c代码

server.c

#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#include <stdlib.h>
int main (void)
{
    void *context = zmq_init (1);
    void *responder = zmq_socket (context, ZMQ_REP);
    zmq_bind(responder, "tcp://127.0.0.1:5566");
    
    while (1) 
    {
        // Wait for next request from client
        zmq_msg_t request;
        zmq_msg_init(&request);
        zmq_recvmsg(responder, &request, 0);
        //printf("Received client msg = [%s]
", (char *)zmq_msg_data(&request));
#if 1        
        int size = zmq_msg_size(&request);
        char *msg = (char *)malloc(size + 1);
        memset(msg, 0, size+1);
        memcpy(msg, zmq_msg_data(&request), size);
        printf ("Received Client=[%s]
", msg);
        free(msg);
#endif
        zmq_msg_close(&request);
        
        // Do some 'work'
        sleep (1);
        
        // Send reply back to client
        zmq_msg_t reply;
        zmq_msg_init_data(&reply, "world", 6, NULL, NULL);
        zmq_sendmsg(responder, &reply, 0);
        zmq_msg_close(&reply);
#if 0
        zmq_msg_t reply;
        char res[128]={0};
        snprintf(res, 127, "reply:%d", random());
        zmq_msg_init_size(&reply, strlen(res));
        memcpy(zmq_msg_data(&reply), res, strlen(res));
        char buf2[32];
        zmq_send(responder, buf2, &reply, 0);
        zmq_msg_close(&reply);
#endif
    }
    // We never get here but if we did, this would be how we end
    zmq_close(responder);
    zmq_term(context);
    return 0;
}

client.c

#include <zmq.h> 
#include <string.h> 
#include <stdio.h> 
#include <unistd.h>  
#include <stdlib.h>
int main () 
{     
    void *context = zmq_init(1);
    void *requester = zmq_socket(context, ZMQ_REQ);     
    zmq_connect (requester, "tcp://127.0.0.1:5566");       
    int request_nbr;     
    
    for (request_nbr = 0; request_nbr != 10; request_nbr++) 
    {         
        zmq_msg_t request;
        
        zmq_msg_init_size(&request, 5);
        //memset(zmq_msg_data(&request), 'H', 5);
        //memcpy(zmq_msg_data(&request), "Hello", 5);         
          
        zmq_msg_init_data(&request, "Hello", 5, NULL, NULL);        
        zmq_sendmsg(requester, &request, 0);
        zmq_msg_close(&request);           
  
        zmq_msg_t reply;         
        zmq_msg_init(&reply);         
        //zmq_recv(requester, &reply, 0,0);         
        zmq_recvmsg(requester, &reply, 0);
        //printf ("Received reply %d: [%s]
", request_nbr, (char *)zmq_msg_data(&reply));         
#if 1
        int size = zmq_msg_size(&reply);
        char *msg = (char *)malloc(size + 1);
        memset(msg, 0, size+1);
        memcpy(msg, zmq_msg_data(&reply), size);
        printf ("Received Server=[%s]
", msg);
        free(msg);
#endif        
        zmq_msg_close(&reply);     
     }     
     zmq_close(requester);     
     zmq_term(context);     
 
    return 0; 
}

export LD_LIBRARY_PATH=/data/zeromq/lib/:$LD_LIBRARY_PATH

gcc server.c -o server -lzmq   -L/data/zeromq/lib -I/data/zeromq/include 

gcc client.c -o client -lzmq   -L/data/zeromq/lib -I/data/zeromq/include