120 lines
2.5 KiB
C++
120 lines
2.5 KiB
C++
/*PVAServerRegister.cpp */
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/**
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* Copyright - See the COPYRIGHT that is included with this distribution.
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* EPICS pvData 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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/**
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* @author mrk
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* @date 2013.07.24
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*/
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/* Author: Marty Kraimer */
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#include <cstddef>
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#include <cstdlib>
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#include <cstddef>
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#include <string>
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#include <cstdio>
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#include <memory>
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#include <iostream>
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#include <cantProceed.h>
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#include <epicsStdio.h>
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#include <epicsMutex.h>
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#include <epicsEvent.h>
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#include <epicsThread.h>
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#include <iocsh.h>
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#include <epicsExit.h>
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#include <epicsExport.h>
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#include <pv/pvAccess.h>
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#include <pv/serverContext.h>
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using std::cout;
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using std::endl;
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using namespace epics::pvData;
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using namespace epics::pvAccess;
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class PVAServerCTX;
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typedef std::tr1::shared_ptr<PVAServerCTX> PVAServerCTXPtr;
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class PVAServerCTX :
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public std::tr1::enable_shared_from_this<PVAServerCTX>
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{
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public:
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POINTER_DEFINITIONS(PVAServerCTX);
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static PVAServerCTXPtr getPVAServerCTX();
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void start();
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void stop();
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virtual ~PVAServerCTX() {}
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private:
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PVAServerCTX() {}
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shared_pointer getPtrSelf()
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{
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return shared_from_this();
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}
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ServerContext::shared_pointer ctx;
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};
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void PVAServerCTX::start()
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{
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if(ctx.get()) {
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cout<< "PVAServer already started" << endl;
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return;
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}
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ctx = startPVAServer(PVACCESS_ALL_PROVIDERS,0,true,true);
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}
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void PVAServerCTX::stop()
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{
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if(!ctx.get()) {
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cout<< "PVAServer already stopped" << endl;
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return;
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}
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ctx->destroy();
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ctx.reset();
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epicsThreadSleep(1.0);
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}
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PVAServerCTXPtr PVAServerCTX::getPVAServerCTX()
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{
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static PVAServerCTXPtr pvPVAServerCTX;
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static Mutex mutex;
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Lock xx(mutex);
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if(!pvPVAServerCTX.get()) {
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pvPVAServerCTX = PVAServerCTXPtr(new PVAServerCTX());
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}
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return pvPVAServerCTX;
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}
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static void pvaServerExitHandler(void* /*pPrivate*/) {
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cout << "pvaServerExitHandler\n";
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PVAServerCTX::getPVAServerCTX()->stop();
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}
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static const iocshFuncDef startPVAServerFuncDef = {
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"startPVAServer", 0, 0
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};
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extern "C" void startPVAServer(const iocshArgBuf *args)
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{
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PVAServerCTX::getPVAServerCTX()->start();
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epicsAtExit(pvaServerExitHandler, NULL);
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}
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static void registerStartPVAServer(void)
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{
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static int firstTime = 1;
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if (firstTime) {
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firstTime = 0;
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iocshRegister(&startPVAServerFuncDef, startPVAServer);
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}
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}
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extern "C" {
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epicsExportRegistrar(registerStartPVAServer);
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}
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