Siena C++ API documentation (v. 0.4.1)

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publisher.cc

This is an example of how to program a simple subscriber application. To compile this example on a GNU/Linux system or on other Unix-like systems, assuming Siena has been installed in $prefix, execute:

 c++ publisher.cc -o publisher -I$prefix/include -L$prefix/lib -lsiena
 

On some platforms (notably Solaris), you will have to link additional libraris (e.g., -lsocket -lnsl).

To compile this example on a win32 system, using Visual C++, assuming Siena has been installed in %prefix%, execute:

 cl -I%prefix% -GX -c publisher.cc
 link -out:publisher publisher.obj %prefix%\siena.lib wsock32.lib
 

// -*- C++ -*-
//
//  This file is part of Siena, a wide-area event notification system.
//  See http://www.cs.colorado.edu/serl/siena/
//
//  Author: Antonio Carzaniga <carzanig@cs.colorado.edu>
//  See the file AUTHORS for full details. 
//
//  Copyright (C) 1998-2001 University of Colorado
//
//  This program is free software; you can redistribute it and/or
//  modify it under the terms of the GNU General Public License
//  as published by the Free Software Foundation; either version 2
//  of the License, or (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307,
//  USA, or send email to serl@cs.colorado.edu.
//
//
// $Id: publisher.cc,v 1.4 2001/06/26 23:26:19 carzanig Exp $
//
#include <sienaconf.h>

#ifdef USING_WIN32
#include <stdlib.h>
#define sleep _sleep
#else
#include <unistd.h>
#endif

#include <iostream.h>
#include <exception>
                                                // include Siena headers
#include <siena/Siena.h>
#include <siena/ThinClient.h>

int main (int argc, char *argv[])
{
    try {                                       // handles cmd-line params
        if (argc != 2) {
            cerr << "usage: " << argv[0] << " <uri>" << endl;
            return 1;
        }

        ThinClient siena(argv[1]);              // creates interface to 
                                                // given master server
        Notification n;
        n["stock"] = "XYZ";
 
        for (int i = 10; i < 200; i += 10) {
            n["price"] = i;
            siena.publish(n);
            sleep(1);
        }
        siena.shutdown();                       // closes Siena interface
    } catch (exception &ex) {
        cout << "error: " << ex.what() << endl;
    }
    return 0;
}

Copyright © 2001 University of Colorado.
Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.1 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation License". This documentation is authored and maintained by Antonio Carzaniga