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136 lines (114 loc) · 3.34 KB
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/*
* Copyright (c) 2016 PolySync
*
*
* 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.
*/
/**
* \example SocketWriter.cpp
*
* PolySync SocketWriter C++ API example application
* Connect to a UDP socket and send data
*/
#include <iostream>
#include <PolySyncCore.hpp>
#include <PolySyncNode.hpp>
#include <PolySyncSocket.hpp>
// set socket re-use enabled flag
#define ENABLED 1
using namespace std;
const int SOCKET_DOMAIN = AF_INET;
const int SOCKET_PROTOCOL = IPPROTO_UDP;
const int SOCKET_TYPE = SOCK_DGRAM;
const string NODE_NAME( "polysync-socket-writer-cpp" );
/**
* @brief SocketWriterNode class
*
* The SocketWriterNode class exists to demonstrate how to use the node class
* to perform UDP socket write functions.
*/
class SocketWriterNode : public polysync::Node
{
private:
polysync::Socket mySocket;
public:
SocketWriterNode()
: mySocket( SOCKET_DOMAIN, SOCKET_TYPE, SOCKET_PROTOCOL )
{
}
/**
* @brief initStateEvent
*
* Initialize the socket here
*
*/
void initStateEvent() override
{
// connect to (localhost)
const vector< char > addr { 127, 0, 0, 1 };
ulong port = 1197;
// set the address and port for our object and bind to the socket
mySocket.setAddress( addr, port );
// set socket reuse option for multiple connections
mySocket.setReuse( ENABLED );
mySocket.bind();
// connect to the socket
mySocket.connect();
}
/**
* @brief okStateEvent
*
* Perform a write to localhost here.
*
*/
void okStateEvent() override
{
vector< uchar > sendBuffer
{ 'S', 'o', 'c', 'k', 'e', 't', ' ', 'W', 'r', 'i', 't', 'e', 'r' };
// returns number of bytes sent
mySocket.send( sendBuffer );
}
/**
* @brief releaseStateEvent
*
* Perform the socket cleanup here.
*
*/
void releaseStateEvent() override
{
mySocket.release();
}
};
/**
* @brief main
*
* The "connectPolySync" function begins the node's PolySync execution loop.
*
* @return int - exit code
*/
int main()
{
// Create an instance of the SocketWriterNode and connect it to PolySync
SocketWriterNode socketWriterNode;
socketWriterNode.setNodeName(NODE_NAME);
socketWriterNode.connectPolySync();
return 0;
}