shared_vector<const double> PvaClientPutData::getDoubleArray()
{
checkValue();
PVDoubleArrayPtr pv = pvStructure->getSubField<PVDoubleArray>("value");
if(!pv) {
throw std::runtime_error(messagePrefix + notDoubleArray);
}
return pv->view();
}
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();
}
}
void ExampleLink::monitorEvent(epics::pvData::MonitorPtr const & monitor)
{
while(true) {
MonitorElementPtr monitorElement = monitor->poll();
if(!monitorElement) break;
PVStructurePtr pvStructurePtr = monitorElement->pvStructurePtr;
PVDoubleArrayPtr pvDoubleArray = pvStructurePtr->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->release(monitorElement);
}
}
void test_ntcontinuum()
{
testDiag("test_ntcontinuum");
NTContinuumBuilderPtr builder = NTContinuum::createBuilder();
testOk(builder.get() != 0, "Got builder");
NTContinuumPtr ntContinuum = builder->
addDescriptor()->
addAlarm()->
addTimeStamp()->
add("extra1",fieldCreate->createScalar(pvString)) ->
add("extra2",fieldCreate->createScalarArray(pvString)) ->
create();
testOk1(ntContinuum.get() != 0);
testOk1(ntContinuum->getPVStructure().get() != 0);
testOk1(ntContinuum->getDescriptor().get() != 0);
testOk1(ntContinuum->getAlarm().get() != 0);
testOk1(ntContinuum->getTimeStamp().get() != 0);
testOk1(ntContinuum->getBase().get() != 0);
testOk1(ntContinuum->getValue().get() != 0);
//
// example how to set base
//
PVDoubleArray::svector newBase;
newBase.push_back(1.0);
newBase.push_back(2.0);
PVDoubleArrayPtr pvBaseField = ntContinuum->getBase();
pvBaseField->replace(freeze(newBase));
//
// example how to get bases
//
PVDoubleArray::const_svector base(pvBaseField->view());
testOk1(base.size() == 2);
testOk1(base[0] == 1.0);
testOk1(base[1] == 2.0);
//
// example how to set values
//
PVDoubleArray::svector newValue;
newValue.push_back(1.0);
newValue.push_back(2.0);
newValue.push_back(10.0);
newValue.push_back(20.0);
newValue.push_back(100.0);
newValue.push_back(200.0);
PVDoubleArrayPtr pvValueField = ntContinuum->getValue();
pvValueField->replace(freeze(newValue));
//
// example how to get values
//
PVDoubleArray::const_svector value(pvValueField->view());
testOk1(value.size() == 6);
testOk1(value[0] == 1.0);
testOk1(value[1] == 2.0);
testOk1(value[2] == 10.0);
testOk1(value[3] == 20.0);
testOk1(value[4] == 100.0);
testOk1(value[5] == 200.0);
//
// example how to set units
//
PVStringArray::svector newUnits;
newUnits.push_back("s");
newUnits.push_back("ms");
newUnits.push_back("us");
newUnits.push_back("s");
PVStringArrayPtr pvUnitsField = ntContinuum->getUnits();
pvUnitsField->replace(freeze(newUnits));
//
// example how to get units
//
PVStringArray::const_svector units(pvUnitsField->view());
testOk1(units.size() == 4);
testOk1(units[0] == "s");
testOk1(units[1] == "ms");
testOk1(units[2] == "us");
testOk1(units[3] == "s");
//
// test isValid
//
testOk1(ntContinuum->isValid());
//
// timeStamp ops
//
PVTimeStamp pvTimeStamp;
if (ntContinuum->attachTimeStamp(pvTimeStamp))
{
testPass("timeStamp attach");
// example how to set current time
TimeStamp ts;
ts.getCurrent();
pvTimeStamp.set(ts);
// example how to get EPICS time
TimeStamp ts2;
pvTimeStamp.get(ts2);
testOk1(ts2.getEpicsSecondsPastEpoch() != 0);
}
else
testFail("timeStamp attach fail");
//
// alarm ops
//
PVAlarm pvAlarm;
if (ntContinuum->attachAlarm(pvAlarm))
{
testPass("alarm attach");
// example how to set an alarm
Alarm alarm;
alarm.setStatus(deviceStatus);
alarm.setSeverity(minorAlarm);
alarm.setMessage("simulation alarm");
pvAlarm.set(alarm);
}
else
testFail("alarm attach fail");
//
// set descriptor
//
ntContinuum->getDescriptor()->put("This is a test NTContinuum");
// dump NTContinuum
std::cout << *ntContinuum->getPVStructure() << std::endl;
}
void test_nthistogram()
{
testDiag("test_nthistogram");
NTHistogramBuilderPtr builder = NTHistogram::createBuilder();
testOk(builder.get() != 0, "Got builder");
NTHistogramPtr ntHistogram = builder->
value(pvInt)->
addDescriptor()->
addAlarm()->
addTimeStamp()->
add("extra1",fieldCreate->createScalar(pvString)) ->
add("extra2",fieldCreate->createScalarArray(pvString)) ->
create();
testOk1(ntHistogram.get() != 0);
testOk1(ntHistogram->getPVStructure().get() != 0);
testOk1(ntHistogram->getDescriptor().get() != 0);
testOk1(ntHistogram->getAlarm().get() != 0);
testOk1(ntHistogram->getTimeStamp().get() != 0);
testOk1(ntHistogram->getRanges().get() != 0);
testOk1(ntHistogram->getValue().get() != 0);
testOk1(ntHistogram->getValue<PVIntArray>().get() != 0);
//
// example how to set ranges
//
PVDoubleArray::svector newRanges;
newRanges.push_back(-100.0);
newRanges.push_back(0.0);
newRanges.push_back(100.0);
PVDoubleArrayPtr pvRangesField = ntHistogram->getRanges();
pvRangesField->replace(freeze(newRanges));
//
// example how to get ranges
//
PVDoubleArray::const_svector ranges(pvRangesField->view());
testOk1(ranges.size() == 3);
testOk1(ranges[0] == -100.0);
testOk1(ranges[1] == 0.0);
testOk1(ranges[2] == 100.0);
//
// example how to set value
//
PVIntArray::svector newValue;
newValue.push_back(1);
newValue.push_back(2);
PVIntArrayPtr pvValueField = ntHistogram->getValue<PVIntArray>();
pvValueField->replace(freeze(newValue));
//
// example how to get values for each bin
//
PVIntArray::const_svector value(pvValueField->view());
testOk1(value.size() == 2);
testOk1(value[0] == 1);
testOk1(value[1] == 2);
//
// test isValid
//
testOk1(ntHistogram->isValid());
//
// timeStamp ops
//
PVTimeStamp pvTimeStamp;
if (ntHistogram->attachTimeStamp(pvTimeStamp))
{
testPass("timeStamp attach");
// example how to set current time
TimeStamp ts;
ts.getCurrent();
pvTimeStamp.set(ts);
// example how to get EPICS time
TimeStamp ts2;
pvTimeStamp.get(ts2);
testOk1(ts2.getEpicsSecondsPastEpoch() != 0);
}
else
testFail("timeStamp attach fail");
//
// alarm ops
//
PVAlarm pvAlarm;
if (ntHistogram->attachAlarm(pvAlarm))
{
testPass("alarm attach");
// example how to set an alarm
Alarm alarm;
alarm.setStatus(deviceStatus);
alarm.setSeverity(minorAlarm);
alarm.setMessage("simulation alarm");
pvAlarm.set(alarm);
}
else
testFail("alarm attach fail");
//
// set descriptor
//
ntHistogram->getDescriptor()->put("This is a test NTHistogram");
// dump NTHistogram
std::cout << *ntHistogram->getPVStructure() << std::endl;
}
static PyObject *getScalarArrayValue(PVScalarArrayPtr pvScalarArray)
{
ScalarType scalarType = pvScalarArray->getScalarArray()->getElementType();
switch(scalarType) {
case pvBoolean: {
PVBooleanArrayPtr pvArray = static_pointer_cast<PVBooleanArray>(pvScalarArray);
shared_vector<const boolean> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
int value = (data[i] ? 1 : 0);
PyObject *elem = Py_BuildValue("i",value);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvByte: {
PVByteArrayPtr pvArray = static_pointer_cast<PVByteArray>(pvScalarArray);
shared_vector<const int8> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
int value = data[i];
PyObject *elem = Py_BuildValue("i",value);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvUByte: {
PVUByteArrayPtr pvArray = static_pointer_cast<PVUByteArray>(pvScalarArray);
shared_vector<const uint8> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
int value = data[i];
PyObject *elem = Py_BuildValue("i",value);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvShort: {
PVShortArrayPtr pvArray = static_pointer_cast<PVShortArray>(pvScalarArray);
shared_vector<const int16> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
int value = data[i];
PyObject *elem = Py_BuildValue("i",value);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvUShort: {
PVUShortArrayPtr pvArray = static_pointer_cast<PVUShortArray>(pvScalarArray);
shared_vector<const uint16> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
int value = data[i];
PyObject *elem = Py_BuildValue("i",value);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvInt: {
PVIntArrayPtr pvArray = static_pointer_cast<PVIntArray>(pvScalarArray);
shared_vector<const int32> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("i",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvUInt: {
PVUIntArrayPtr pvArray = static_pointer_cast<PVUIntArray>(pvScalarArray);
shared_vector<const uint32> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("i",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvLong: {
PVLongArrayPtr pvArray = static_pointer_cast<PVLongArray>(pvScalarArray);
shared_vector<const int64> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("k",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvULong: {
PVULongArrayPtr pvArray = static_pointer_cast<PVULongArray>(pvScalarArray);
shared_vector<const uint64> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("k",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvFloat: {
PVFloatArrayPtr pvArray = static_pointer_cast<PVFloatArray>(pvScalarArray);
shared_vector<const float> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("f",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvDouble: {
PVDoubleArrayPtr pvArray = static_pointer_cast<PVDoubleArray>(pvScalarArray);
shared_vector<const double> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("d",data[i]);
PyTuple_SetItem(result, i, elem);
}
return result;
}
case pvString: {
PVStringArrayPtr pvArray = static_pointer_cast<PVStringArray>(pvScalarArray);
shared_vector<const string> data(pvArray->view());
int num = data.size();
PyObject *result = PyTuple_New(num);
for(int i=0; i<num; i++) {
PyObject *elem = Py_BuildValue("s",data[i].c_str());
PyTuple_SetItem(result, i, elem);
}
return result;
}
}
Py_INCREF(Py_None);
return Py_None;
}
void RequestResponseHandler::makeStrings(epics::pvData::PVStructurePtr const & response)
{
using namespace epics::pvData;
using namespace std;
PVStructurePtr responseValues = response->getStructureField("value");
if (!responseValues)
{
cerr << "Data invalid: No value field in table." << endl;
m_ok = false;
return;
}
// Handle each of the fields in the archiver query response in turn.
// Values.
PVDoubleArrayPtr values = getDoubleArrayField(responseValues, "value");
if (!values)
{
cerr << "Data invalid: No value field in table values." << endl;
m_ok = false;
return;
}
int valuesLength = values->getLength();
if (isPresent(VALUE, m_parameters.outputtedFields))
{
arrayValuesToStrings(outputFieldValues[VALUE], values->view(),
m_parameters.format, m_parameters.precision);
}
// Seconds.
PVLongArrayPtr secPastEpochs = getLongArrayField(responseValues, "secondsPastEpoch");
if (!secPastEpochs)
{
cerr << "Data invalid: No secondsPastEpoch field in table values." << endl;
m_ok = false;
return;
}
int secPastEpochsLength = secPastEpochs->getLength();
if (secPastEpochsLength != valuesLength)
{
cerr << "Data invalid: secondsPastEpoch and value lengths don't match." << endl;
m_ok = false;
return;
}
PVLongArray::const_svector secPastEpochsData = secPastEpochs->view();
if (isPresent(SECONDS_PAST_EPOCH, m_parameters.outputtedFields)
|| isPresent(REAL_TIME, m_parameters.outputtedFields))
{
arrayValuesToStrings(outputFieldValues[SECONDS_PAST_EPOCH], secPastEpochsData);
}
// Nanoseconds.
PVIntArrayPtr nsecs = getIntArrayField(responseValues, "nanoseconds");
if (!nsecs)
{
cerr << "Data invalid: No nanoseconds field in table values." << endl;
m_ok = false;
return;
}
int nsecsLength = nsecs->getLength();
if (nsecsLength != valuesLength)
{
cerr << "Data invalid: nanoseconds past epoch and value lengths don't match." << endl;
m_ok = false;
return;
}
PVIntArray::const_svector nsecsData = nsecs->view();
if (isPresent(NANO_SECONDS, m_parameters.outputtedFields)
|| isPresent(REAL_TIME, m_parameters.outputtedFields))
{
arrayValuesToStrings(outputFieldValues[NANO_SECONDS], nsecsData);
}
// Real time in seconds.
if (isPresent(REAL_TIME, m_parameters.outputtedFields))
{
int realTimeLength = min(secPastEpochsLength, nsecsLength);
vector<string> & realTimeStrings = outputFieldValues[REAL_TIME];
realTimeStrings.reserve(realTimeLength);
{
ostringstream oss;
for (int i = 0; i < realTimeLength; ++i)
{
oss << secPastEpochsData[i] << ".";
oss << setfill('0') << setw(9) << nsecsData[i];
realTimeStrings.push_back(oss.str());
oss.str("");
}
}
}
// Dates.
if (isPresent(DATE, m_parameters.outputtedFields))
{
vector<string> & dateStrings = outputFieldValues[DATE];
int dateLength = min(secPastEpochsLength, nsecsLength);
dateStrings.reserve(dateLength);
for (int i = 0; i < dateLength; ++i)
{
string dateString = getDate(secPastEpochsData[i], nsecsData[i]);
dateStrings.push_back(dateString);
}
}
// Alarm status.
PVIntArrayPtr statuses = getIntArrayField(responseValues, "status");
if (!statuses)
{
cerr << "Data invalid: No status field in table values." << endl;
m_ok = false;
return;
}
int statusesLength = statuses->getLength();
if (statusesLength != valuesLength)
{
cerr << "Data invalid: status and value lengths don't match." << endl;
m_ok = false;
return;
}
if (isPresent(STATUS, m_parameters.outputtedFields))
{
PVIntArray::const_svector statusData = statuses->view();
arrayValuesToStrings(outputFieldValues[STATUS], statusData, FormatParameters::HEX);
}
// Alarm severity.
PVIntArrayPtr severities = getIntArrayField(responseValues, "severity");
if (!severities)
{
cerr << "Data invalid: No severity field in table values." << endl;
m_ok = false;
return;
}
int severitiesLength = severities->getLength();
if (severitiesLength != valuesLength)
{
cerr << "Data invalid: severity and value lengths don't match." << endl;
m_ok = false;
return;
}
if (isPresent(SEVERITY, m_parameters.outputtedFields))
{
PVIntArray::const_svector severityData = severities->view();
arrayValuesToStrings(outputFieldValues[SEVERITY], severityData, FormatParameters::HEX);
}
// Alarm string.
int alarmStringsLength = min(secPastEpochsLength, nsecsLength);
if (isPresent(ALARM, m_parameters.outputtedFields))
{
vector<string> & alarmStrings = outputFieldValues[ALARM];
alarmStrings.reserve(alarmStringsLength);
PVIntArray::const_svector statusData = statuses->view();
PVIntArray::const_svector severityData = severities->view();
for (int i = 0; i < valuesLength; ++i)
{
string alarmString = makeAlarmString(statusData[i], severityData[i]);
alarmStrings.push_back(alarmString);
}
}
}