ZEROMQ Learning notes 2--Simple client and server-side test programs

1. Preface

ZEROMQ provides guide,http://zguide.zeromq.org/to help beginners get started quickly, providing c\c++\php and many more languages.

2. Test procedure

Use the C language test program given by ZEROMQ to Hwserver and hwclient.

The Hwserver code is as follows:

1#include <stdio.h>2#include <unistd.h>3#include <string.h>4#include <assert.h>5#include <zmq.h>6                                                                                                        7 intMain (void)                                                                                        8 {                                                                                                      9     //Socket to talk to clientsTen     void*context =zmq_ctx_new ();  One     void*responder =zmq_socket (context, zmq_rep);  A     intrc = Zmq_bind (Responder,"tcp://*:5555");  -ASSERT (rc = =0);  -                                                                                                         the      while(1) {                                                                                         -         CharBuffer [Ten];  -ZMQ_RECV (responder, buffer,Ten,0);  -printf ("Received hello\n");  +Sleep (1);//Do some ' work ' -Zmq_send (Responder," World",5,0);  +     }                                                                                                   A     return 0;  at}

The Hwclient code is as follows:

1 //Hello World Client 2#include <zmq.h>3#include <string.h>4#include <stdio.h>5#include <unistd.h>6                                                                                                        7 intMain (void)                                                                                        8 {                                                                                                      9printf ("Connecting to Hello World server...\n"); Ten                                                                                                         One     /*to create a new context*/                                                                              A     void*context =zmq_ctx_new ();  -     void*requester =zmq_socket (context, zmq_req);  -     /*connect to the local server via TCP protocol, port 5555*/                                                           theZmq_connect (Requester,"tcp://localhost:5555");  -                                                                                                         -     intREQUEST_NBR;  -      for(REQUEST_NBR =0; Request_nbr! =Ten; request_nbr++) {                                           +         CharBuffer [Ten];  -printf ("Sending Hello%d...\n", REQUEST_NBR);  +Zmq_send (Requester,"Hello",5,0);  AZMQ_RECV (requester, buffer,Ten,0);  atprintf ("Received World%d\n", REQUEST_NBR);  -     }                                                                                                   -                                                                                                         - Zmq_close (requester);  - Zmq_ctx_destroy (context);  -                                                                                                         in     return 0;  -}

3. Compile and Execute

I installed the ZEROMQ in the/USR/LOCAL/ZEROMQ directory, makefile set up the include and Lib connection, the code passed normally, but at the time of execution prompt:

[Email protected] hwserver]#./hwserver
./hwserver:error while loading shared libraries:libzmq.so.5:cannot open Shared object file:no such file or directory

After checking the Internet, we found that Zeromq's Lib path was not added to ld.so.conf.

Reference: http://blog.csdn.net/guoyilongedu/article/details/17450815

Add the libzeromq.so path to the Tao Ld.so.conf, the following steps:

Go to etc under cd/etc

Edit ld.so.conf, sudo vim ld.so.conf

Join Libzmq.so's Path/usr/local/zeromq/lib

Save and then execute the command ldconfig

After execution completes, the compilation succeeds:

Starting Hwserver and Hwclient, the execution results are as follows:

ZEROMQ Learning notes 2--Simple client and server-side test programs