int main(int argc,char *argv[])
{
PvaClientPtr pva = PvaClient::create();
try {
PvaClientChannelPtr channel = pva->channel("helloPutGet");
PvaClientPutGetPtr putGet = channel->createPutGet();
putGet->connect();
PvaClientPutDataPtr putData = putGet->getPutData();
PVStructurePtr arg = putData->getPVStructure();
PVStringPtr pvValue = arg->getSubField<PVString>("argument.value");
pvValue->put("World");
putGet->putGet();
PvaClientGetDataPtr getData = putGet->getGetData();
cout << getData->getPVStructure() << endl;
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
return 1;
}
return 0;
}
static void exampleCADoubleArray(PvaClientPtr const &pva)
{
cout << "__exampleCADoubleArray__\n";
shared_vector<const double> value;
try {
cout << "short way\n";
value = pva->channel("DBRdoubleArray","ca",5.0)->get()->getData()->getDoubleArray();
cout << "as doubleArray " << value << endl;
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
}
try {
cout << "long way\n";
PvaClientChannelPtr pvaChannel = pva->createChannel("DBRdoubleArray","ca");
pvaChannel->connect(2.0);
PvaClientGetPtr pvaGet = pvaChannel->createGet();
PvaClientGetDataPtr pvaData = pvaGet->getData();
value = pvaData->getDoubleArray();
cout << "as doubleArray " << value << endl;
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
}
}
static void exampleCADouble(PvaClientPtr const &pva)
{
cout << "__exampleCADouble__\n";
double value;
try {
cout << "short way\n";
value = pva->channel("DBRdouble00","ca",5.0)->get()->getData()->getDouble();
cout << "as double " << value << endl;
} catch (std::runtime_error e) {
cout << "exception " << e.what() << endl;
}
cout << "long way\n";
PvaClientChannelPtr pvaChannel = pva->createChannel("DBRdouble00","ca");
pvaChannel->issueConnect();
Status status = pvaChannel->waitConnect(2.0);
if(!status.isOK()) {cout << " connect failed\n"; return;}
PvaClientGetPtr pvaGet = pvaChannel->createGet();
pvaGet->issueConnect();
status = pvaGet->waitConnect();
if(!status.isOK()) {cout << " createGet failed\n"; return;}
PvaClientGetDataPtr pvaData = pvaGet->getData();
value = pvaData->getDouble();
cout << "as double " << value << 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());
}
}