一个使用zmq_recv 接收 5555端口的demo

#include <zmq.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
int main (void)
{
    void *context = zmq_ctx_new();
    void *responder = zmq_socket(context, ZMQ_REP);
    int rc = zmq_bind(responder, "tcp://*:5555");
    if (rc != 0) {
        printf("Error occurred during zmq_bind(): %s\n", zmq_strerror(errno));
        return -1;
    }
    while (1) {
        char buffer[10];
        zmq_recv(responder, buffer, 10, 0);
        printf("Received: %s\n", buffer);
        sleep(1); // Do some work
        zmq_send(responder, "World", 5, 0);
    }
    return 0;
}