static void exampleDoubleArray(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
cout << "__exampleDoubleArray__ channelName " << channelName << " providerName " << providerName << endl;
PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
PvaClientPutPtr put = channel->put();
PvaClientPutDataPtr putData = put->getData();
PvaClientMonitorPtr monitor = pva->channel(channelName,providerName,2.0)->monitor("value");
PvaClientMonitorDataPtr monitorData = monitor->getData();
size_t num = 5;
shared_vector<double> data(num,0);
for(size_t i=0; i<num; ++i) data[i] = .1*i;
putData->putDoubleArray(freeze(data)); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
data = shared_vector<double>(num,0);
for(size_t i=0; i<num; ++i) data[i] = .1*(i + 1);
putData->putDoubleArray(freeze(data)); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
if(!monitor->waitEvent()) {
cout << "waitEvent returned false. Why???";
} else while(true) {
cout << "monitor changed\n" << monitorData->showChanged(cout);
monitor->releaseEvent();
if(!monitor->poll()) break;
}
}
static void exampleMonitor(PvaClientPtr const &pva,string provider)
{
PvaClientMonitorPtr monitor = pva->channel("DBRdouble00",provider,2.0)->monitor("");
PvaClientMonitorDataPtr monitorData = monitor->getData();
PvaClientPutPtr put = pva->channel("DBRdouble00",provider,2.0)->put("");
PvaClientPutDataPtr putData = put->getData();
for(size_t ntimes=0; ntimes<5; ++ntimes)
{
double value = ntimes;
cout << "put " << value << endl;
putData->putDouble(value); put->put();
if(!monitor->waitEvent(.1)) {
cout << "waitEvent returned false. Why???";
continue;
} else while(true) {
cout << "monitor " << monitorData->getDouble() << endl;
cout << "changed\n";
monitorData->showChanged(cout);
cout << "overrun\n";
monitorData->showOverrun(cout);
monitor->releaseEvent();
if(!monitor->poll()) break;
}
}
}
virtual void event(PvaClientMonitorPtr const & monitor)
{
testDiag("monitor event");
PvaClientMonitorDataPtr pvaData = monitor->getData();
while (monitor->poll()) {
if (!testOk(*pvaData->getChangedBitSet() == expected,
"expected fields changed")) {
cout << "# changed = " << *pvaData->getChangedBitSet() << endl;
cout << "# expected = " << expected << endl;
}
testOk(pvaData->getOverrunBitSet()->isEmpty(), "No overrun");
monitor->releaseEvent();
}
}
int main(int argc,char *argv[])
{
string provider("pva");
if(argc==2 && string(argv[1])==string("-help")) {
cout << "provider" << endl;
cout << "default" << endl;
cout << provider << endl;
return 0;
}
if(argc>1) provider = argv[1];
cout << "_____exampleLinkClient starting_______\n";
PvaClientPtr pva = PvaClient::create();
try {
PvaClientPutPtr put = pva->channel("doubleArray",provider,5.0)->put();
PvaClientPutDataPtr putData = put->getData();
PvaClientMonitorPtr monitor = pva->channel("exampleLink")->monitor("");
PvaClientMonitorDataPtr pvaData = monitor->getData();
if(!monitor->waitEvent(0.0)) {
cout << "waitEvent returned false. Why???\n";
} else {
cout << "exampleLink\n" << pvaData->getPVStructure() << endl;
monitor->releaseEvent();
}
{
size_t nElements = 5;
shared_vector<double> value(nElements);
for(size_t i=0; i< nElements; ++i) value[i] = 0.0;
shared_vector<const double> data(freeze(value));
putData->putDoubleArray(data); put->put();
}
if(!monitor->waitEvent(0.0)) {
cout<< "waitEvent returned false. Why???\n";
} else {
cout << "exampleLink\n" << pvaData->getPVStructure() << endl;
monitor->releaseEvent();
}
{
size_t nElements = 5;
shared_vector<double> value(nElements);
for(size_t i=0; i< nElements; ++i) value[i] = .1*(i+1);
shared_vector<const double> data(freeze(value));
putData->putDoubleArray(data); put->put();
}
if(!monitor->waitEvent(0.0)) {
cout<< "waitEvent returned false. Why???\n";
} else {
cout << "exampleLink\n" << pvaData->getPVStructure() << endl;
monitor->releaseEvent();
}
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
return 1;
}
cout << "_____exampleLinkClient done_______\n";
return 0;
}
void ExampleMonitorLinkRecord::event(PvaClientMonitorPtr const & monitor)
{
while(monitor->poll()) {
PVStructurePtr pvStructure = monitor->getData()->getPVStructure();
PVDoubleArrayPtr pvDoubleArray = pvStructure->getSubField<PVDoubleArray>("value");
if(!pvDoubleArray) throw std::runtime_error("value is not a double array");
lock();
try {
beginGroupPut();
pvValue->replace(pvDoubleArray->view());
process();
endGroupPut();
} catch(...) {
unlock();
throw;
}
unlock();
monitor->releaseEvent();
}
}
static void exampleDouble(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
cout << "__exampleDouble__ channelName " << channelName << " providerName " << providerName << endl;
PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
PvaClientPutPtr put = channel->put();
PvaClientPutDataPtr putData = put->getData();
PvaClientMonitorPtr monitor = pva->channel(channelName,providerName,2.0)->monitor("value");
PvaClientMonitorDataPtr monitorData = monitor->getData();
putData->putDouble(3.0); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
putData->putDouble(4.0); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
if(!monitor->waitEvent()) {
cout << "waitEvent returned false. Why???";
} else while(true) {
cout << "monitor changed\n" << monitorData->showChanged(cout);
monitor->releaseEvent();
if(!monitor->poll()) break;
}
}
static void examplePut(PvaClientPtr const &pva)
{
cout << "example put\n";
PvaClientChannelPtr channel = pva->channel("exampleDouble");
PvaClientPutPtr put = channel->put();
PvaClientPutDataPtr putData = put->getData();
PvaClientMonitorPtr monitor = pva->channel("exampleDouble")->monitor("");
PvaClientMonitorDataPtr monitorData = monitor->getData();
try {
putData->putDouble(3.0); put->put();
cout << channel->get("field()")->getData()->showChanged(cout) << endl;
putData->putDouble(4.0); put->put();
cout << channel->get("field()")->getData()->showChanged(cout) << endl;
if(!monitor->waitEvent()) {
cout << "waitEvent returned false. Why???";
} else while(true) {
cout << "monitor changed\n" << monitorData->showChanged(cout);
monitor->releaseEvent();
if(!monitor->poll()) break;
}
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
}
}
void LongArrayMonitor::run()
{
PvaClientPtr pva(PvaClient::get("pva"));
string request("record[queueSize=");
char buff[20];
sprintf(buff,"%d",queueSize);
request += buff;
request += "]field(value,timeStamp,alarm)";
PvaClientMonitorPtr monitor = pva->channel(channelName,providerName,2.0)->monitor(request);
TimeStamp timeStamp;
TimeStamp timeStampLast;
timeStampLast.getCurrent();
long nElements = 0;
long nSinceLastReport = 0;
int64 first = 0;
int64 last = 0;
while(true) {
if(runStop.tryWait()) {
runReturn.signal();
return;
}
if(!monitor->waitEvent(0.0)) {
cout << "waitEvent returned false. Why???" << endl;
continue;
}
PvaClientMonitorDataPtr pvaData = monitor->getData();
PVStructurePtr pvStructure = pvaData->getPVStructure();
PVLongArrayPtr pvValue = pvStructure->getSubField<PVLongArray>("value");
size_t len = pvValue->getLength();
if(len>0) {
shared_vector<const int64> data = pvValue->view();
first = data[0];
last = data[len-1];
if(first!=last) cout << "error first=" << first << " last=" << last << endl;
} else {
cout << "len is 0" << endl;
}
nElements += len;
timeStamp.getCurrent();
double diff = TimeStamp::diff(timeStamp,timeStampLast);
if(diff>=1.0) {
ostringstream out;
out << " monitors/sec " << nSinceLastReport << " ";
if(len>0) out << "first " << first << " last " << last ;
out << " changed " << *pvaData->getChangedBitSet();
out << " overrun " << *pvaData->getOverrunBitSet();
double elementsPerSec = nElements;
elementsPerSec /= diff;
if(elementsPerSec>10.0e9) {
elementsPerSec /= 1e9;
out << " gigaElements/sec " << elementsPerSec;
} else if(elementsPerSec>10.0e6) {
elementsPerSec /= 1e6;
out << " megaElements/sec " << elementsPerSec;
} else if(elementsPerSec>10.0e3) {
elementsPerSec /= 1e3;
out << " kiloElements/sec " << elementsPerSec;
} else {
out << " Elements/sec " << elementsPerSec;
}
cout << out.str() << endl;
timeStampLast = timeStamp;
nSinceLastReport = 0;
nElements = 0;
}
++nSinceLastReport;
monitor->releaseEvent();
}
}
