pvAccessCPP  7.1.5
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Simple Client Put Example

The shortest possible PVA put() example.

/*
* Copyright information and license terms for this software can be
* found in the file LICENSE that is included with the distribution
*/
// The simplest possible PVA put
#include <iostream>
#include "pva/client.h"
int main(int argc, char *argv[])
{
try {
if(argc<=2) {
std::cerr<<"Usage: "<<argv[0]<<" <pvname> <value>\n";
return 1;
}
pvac::ClientProvider provider("pva");
pvac::ClientChannel channel(provider.connect(argv[1]));
std::cout<<"Before "<<channel.name()<<" : "<<channel.get()<<"\n";
channel.put()
.set("value", argv[2])
.exec();
std::cout<<"After "<<channel.name()<<" : "<<channel.get()<<"\n";
}catch(std::exception& e){
std::cerr<<"Error: "<<e.what()<<"\n";
return 1;
}
}