Michael Davidsaver
58 lines
1.7 KiB
C++
58 lines
1.7 KiB
C++
/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* pvxs is distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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*/
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#include <iostream>
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#include <pvxs/sharedpv.h>
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#include <pvxs/server.h>
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#include <pvxs/nt.h>
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#include <pvxs/log.h>
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using namespace pvxs;
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int main(int argc, char* argv[])
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{
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if(argc<=1) {
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std::cerr<<"Usage: "<<argv[0]<<" <pvname>\n";
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return 1;
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}
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// Read $PVXS_LOG from process environment and update
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// logging configuration. eg. PVXS_LOG=*=DEBUG makes
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// a lot of noise.
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logger_config_env();
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// Must provide a data type for the mailbox
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Value initial = nt::NTScalar{TypeCode::Float64}.create();
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// (optional) Provide an initial value
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initial["value"] = 42.0;
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initial["alarm.severity"] = 0;
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initial["alarm.status"] = 0;
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initial["alarm.message"] = "";
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// Actually creating the mailbox PV.
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// buildMailbox() includes a default PUT handler which simply
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// stores whatever a client sends (subject to our data type).
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server::SharedPV pv(server::SharedPV::buildMailbox());
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// Associate a data type (and maybe initial value) with this PV
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pv.open(initial);
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// Build server which will server this PV
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auto serv = server::Config::from_env()
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.build()
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.addPV(argv[1], pv);
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// (optional) Print the configuration this server is using
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// with any auto-address list expanded.
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std::cout<<"Effective config\n"<<serv.config();
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// Start server and run forever, or until Ctrl+c is pressed.
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// Returns on SIGINT or SIGTERM
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serv.run();
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return 0;
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}
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