PvAlarm and PvTimeStamp do not work for put

[mrkraimer]

The following is putTime.py:

from pvapy import Channel, PvTimeStamp
channel = Channel('PVRdouble')
timestamp = PvTimeStamp(10, 100,1)
print('start value=',channel.get('timeStamp'))
channel.put(timestamp,'record[process=false]field(timeStamp)')
val = channel.get('value,alarm,timeStamp')
print('after put timeStamp value=',channel.get('timeStamp'))

It uses the database from exampleCPP

When the database is started and the following is issued

python putTime.py

The following is the result

start value= structure 
time_t timeStamp
    long secondsPastEpoch 0
    int nanoseconds 0
    int userTag 0

after put timeStamp value= structure 
time_t timeStamp
    long secondsPastEpoch 0
    int nanoseconds 0
    int userTag 0

Maybe the problem is that none of the PvAlarm and PyTimeStamp code has a get method?

[mrkraimer]

I have found that in

void Channel::put(const PvObject& pvObject, const std::string& requestDescriptor) 
{
    connect();
    try {
        epics::pvaClient::PvaClientPutPtr pvaPut = createPutPtr(requestDescriptor);
        epics::pvData::PVStructurePtr pvSend = pvaPut->getData()->getPVStructure();
        pvSend << pvObject;
        pvaPut->put();
    } 
        catch (std::runtime_error& ex) {
        throw PvaException(ex.what());
     }
}

The statement

pvSend << pvObject;

Does NOT do anything.
Also, for PvAlarm and PyTimeStamp, pvObject is a single field, but pvSend is a structure.

[mrkraimer]

I created a pull request #66 that fixes the problem for pvDatabase records.

[sveseli]

Thanks for the fixes. I have slightly modified PR #66 after merge in order to make put() work with objects that have matching structures as before (see commit d0f5444).