.. _program_listing_file_src_o3ds_pair.cpp:

Program Listing for File pair.cpp
=================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_o3ds_pair.cpp>` (``src/o3ds/pair.cpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #include "pair.h"
   
   namespace O3DS
   {
       bool ClientPair::start(const char* url)
       {
           int ret;
   
           ret = nng_pair1_open(&mSocket);
           if (ret != 0)
           { 
               setError("Could not create pair socket for dial", ret);
               return false; 
           }
   
           ret = nng_dial(mSocket, url, NULL, 0);
           if (ret != 0) 
           { 
               setError("Could not dial using pair", ret);
               return false; 
           }
   
           return true;
       }
   
       bool ServerPair::start(const char *url)
       {
           int ret;
   
           ret = nng_pair1_open(&mSocket);
           if (ret != 0)
           {
               setError("Could not create pair socket for listen", ret);
               return false;
           }
   
           ret = nng_listen(mSocket, url, NULL, 0);
           if(ret != 0)
           {
               setError("Could not listen on pair connection", ret);
               return false;
           }
   
           return true;
       }
   }