main.cpp
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/* ****************************************************************************
* Copyright 2019 Open Systems Development BV *
* *
* Permission is hereby granted, free of charge, to any person obtaining a *
* copy of this software and associated documentation files (the "Software"), *
* to deal in the Software without restriction, including without limitation *
* the rights to use, copy, modify, merge, publish, distribute, sublicense, *
* and/or sell copies of the Software, and to permit persons to whom the *
* Software is furnished to do so, subject to the following conditions: *
* *
* The above copyright notice and this permission notice shall be included in *
* all copies or substantial portions of the Software. *
* *
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR *
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, *
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL *
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER *
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING *
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER *
* DEALINGS IN THE SOFTWARE. *
* ***************************************************************************/
// std
#include <iostream>
#include <unistd.h>
#include <chrono>
#include <vector>
#include "publisher.h"
#include "subscriber.h"
enum TIME_RES
{
T_MICRO,
T_MILLI,
T_SECONDS
};
std::vector<std::string> positionTable = {
"1", "99", "2", "98", "3", "97", "4", "96", "5", "95",
"6", "94", "7", "93", "8", "92", "9", "91",
"10", "90", "11", "89", "12", "88", "13", "87", "14", "86",
"15", "85", "16", "84", "17", "83", "18", "82", "19", "81",
"20", "80", "21", "79", "22", "78", "23", "77", "24", "76",
"25", "75", "26", "74", "27", "73", "28", "72", "29", "71",
"30", "70", "31", "69", "32", "68", "33", "67", "34", "66",
"35", "65", "36", "64", "37", "63", "38", "62", "39", "61",
"40", "60", "41", "59", "42", "58", "43", "57", "44", "56",
"45", "55", "46", "54", "47", "53", "48", "52", "49", "51",
"50", "50", "51", "49", "52", "48", "53", "47", "54", "46",
"55", "45", "56", "44", "57", "43", "58", "42", "59", "41",
"60", "40", "61", "39", "62", "38", "63", "37", "64", "36",
"65", "35", "66", "34", "67", "33", "68", "32", "69", "31",
"70", "30", "71", "29", "72", "28", "73", "27", "74", "26",
"75", "25", "76", "24", "77", "23", "78", "22", "79", "21",
"80", "20", "81", "19", "82", "18", "83", "17", "84", "16",
"85", "15", "86", "14", "87", "13", "88", "12", "89", "11",
"90", "10", "91", "9", "92", "8", "93", "7", "94", "6",
"95", "5", "96", "4", "97", "3", "98", "2", "99", "1",
"10", "90", "20", "80", "30", "70", "40", "60", "50", "50",
"60", "40", "70", "30", "80", "20", "90", "10"
};
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;
// Create the publisher, run it and publish a control message every 35 sec.
int publishInterval = 30;
std::string ld_topic = "priva/0/devices/actuators/geiger-lamel-1";
std::cout << "Create the subscriber object : ";
Subscriber *pSubscriber = new Subscriber( "TestSubscriber" );
if( pSubscriber != nullptr )
{
std::cout << "{OK}" << std::endl;
std::cout << "Connecting to the broker : ";
pSubscriber->connect( "192.168.1.110", 1883, "", "", "LWT-subscriber", "connection disrupted.." );
pSubscriber->subscribe( ld_topic );
}
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( "192.168.1.110", 1883, "", "", "LWT-publisher", "connection disrupted.." );
// Assume we are connected now, start publishing.
while( 1 )
{
// Follow different patterns with bigger jumps.
for( unsigned int nCount = 0; nCount < positionTable.size(); nCount++ )
{
std::cout << "==============================================================================" << std::endl;
std::string payload = "{\"version\": 1, \"id\": \"geiger-lamel-1\", \"requesterId\": \"me\", \"instruction\": \"SETPOINT\", \"desiredValue\": " + positionTable[nCount] + ", \"requestedAt\": " + std::to_string( getEpochUSecs() ) + "}";
pPublisher->publish( std::string( "priva/1100000916/devices/actuators/geiger-lamel-1/control"), payload );
sleepcp(publishInterval, T_SECONDS);
}
}
}
else
return -1;
}