51becbde
 Peter M. Groen
Committed the ent...
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/* Copyright (C) 2019
*
* This file is part of the osdev components suite
*
* 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, 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
*/
// std
#include <iostream>
#include <unistd.h>
#include <chrono>
#include "publisher.h"
enum TIME_RES
{
T_MICRO,
T_MILLI,
T_SECONDS
};
std::uint64_t getEpochUSecs()
{
auto tsUSec =std::chrono::time_point_cast<std::chrono::microseconds>(std::chrono::system_clock::now());
return static_cast<std::uint64_t>(tsUSec.time_since_epoch().count());
}
void sleepcp( int number, TIME_RES resolution = T_MILLI ) // Cross-platform sleep function
{
int factor = 0; // Should not happen..
switch( resolution )
{
case T_MICRO:
factor = 1;
break;
case T_MILLI:
factor = 1000;
break;
case T_SECONDS:
factor = 1000000;
break;
}
usleep( number * factor );
}
int main( int argc, char* argv[] )
{
// We're not using the command parameters, so we just want to keep the compiler happy.
(void)argc;
(void)argv;
uint64_t messageNumber = 0;
// Create the publisher, run it and publish a message every 0.001 sec.
std::cout << "Create the publisher object : ";
Publisher *pPublisher = new Publisher();
if( pPublisher != nullptr )
{
std::cout << "{OK}" << std::endl;
std::cout << "Connecting to the broker : ";
pPublisher->connect( "localhost", 1883, "", "" );
// Assume we are connected now, start publishing.
while( 1 )
{
std::string payload = "<Timestamp value=\"" + std::to_string( getEpochUSecs() ) + "\" /><MessageNumber value=\"" + std::to_string( messageNumber ) + "\" />" ;
pPublisher->publish( std::string( "test/publisher/TestPublisher" ), payload );
sleepcp( 1, T_SECONDS );
if( messageNumber > 2000000000 )
messageNumber = -1;
messageNumber++;
}
}
else
return -1;
}
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