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;
}
}
}
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;
}
static void examplePVFieldPut(PvaClientPtr const &pva,string const & channelName,string const & providerName)
{
cout << "__examplePVFieldPut__ channelName " << channelName << " providerName " << providerName << endl;
PvaClientChannelPtr channel = pva->channel(channelName,providerName,2.0);
PvaClientPutPtr put = channel->put();
PvaClientPutDataPtr putData = put->getData();
PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(putData->getValue());
convert->fromDouble(pvScalar,1.0); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
convert->fromDouble(pvScalar,2.0); put->put();
cout << channel->get("field(value)")->getData()->showChanged(cout) << endl;
}
static void examplePVFieldPut(PvaClientPtr const &pva)
{
cout << "example put\n";
PvaClientChannelPtr channel = pva->channel("exampleDouble");
PvaClientPutPtr put = channel->put();
PvaClientPutDataPtr putData = put->getData();
PVFieldPtr pvField = putData->getValue();
PVScalarPtr pvScalar = static_pointer_cast<PVScalar>(pvField);
try {
convert->fromDouble(pvScalar,1.0); put->put();
cout << channel->get("field()")->getData()->showChanged(cout) << endl;
convert->fromDouble(pvScalar,2.0); put->put();
cout << channel->get("field()")->getData()->showChanged(cout) << endl;
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
}
}
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;
}
}
static void exampleDouble(PvaClientPtr const &pvaClient)
{
testDiag("== exampleDouble ==");
PvaClientChannelPtr pvaChannel;
try {
pvaChannel = pvaClient->createChannel("PVRdouble");
pvaChannel->connect(2.0);
testDiag("channel connected");
} catch (std::runtime_error e) {
testAbort("channel connection exception '%s'", e.what());
}
PvaClientPutPtr put;
PvaClientPutDataPtr putData;
try {
put = pvaChannel->createPut();
putData = put->getData();
testDiag("put connected");
if (!putData)
testAbort("NULL data pointer from putGet");
} catch (std::runtime_error e) {
testAbort("put connection exception '%s'", e.what());
}
PvaClientGetPtr get;
PvaClientGetDataPtr getData;
try {
get = pvaChannel->createGet();
getData = get->getData();
testDiag("get connected");
if (!getData)
testAbort("NULL data pointer from putGet");
} catch (std::runtime_error e) {
testAbort("get connection exception '%s'", e.what());
}
PvaClientMonitorRequesterPtr requester(new MyMonitor());
PvaClientMonitorPtr monitor;
expected.set(0); // structure definition
try {
monitor = pvaChannel->monitor(requester);
testDiag("monitor connected");
} catch (std::runtime_error e) {
testAbort("monitor connection exception '%s'", e.what());
}
epicsThreadSleep(0.1); // Allow connection monitor event to fire
expected.clear(); // FIXME: Magic numbers here...
expected.set(1); // value
expected.set(6); // timestamp
try {
for (int i=0; i<5; ++i) {
testDiag("= put %d =", i);
double out = i;
putData->putDouble(out);
put->put();
get->get();
double in = getData->getDouble();
testOk(in == out, "get value matches put");
}
PvaClientProcessPtr process = pvaChannel->createProcess();
process->connect();
testDiag("= process =");
expected.clear(1); // no value change
process->process();
} catch (std::runtime_error e) {
testAbort("exception '%s'", e.what());
}
}
