Changed Field Fix #82
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anjohnson
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May 1, 2024
| @@ -289,6 +289,7 @@ static void testMasterField(PVRecordPtr const& pvRecord) | |||
| cout << "Master PV structure from copy" << endl << *pvMasterField << endl; | |||
| cout << "Master PV structure from copy offset " << pvMasterField->getFieldOffset() << endl; | |||
| } | |||
| testOk1(pvCopy->isMasterFieldRequested()); | |||
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This only appears to test that PVCopy detects when the master field is requested, showing the changes to PVCopy and pvRecord. How about adding tests for the behavior fix described in the intro to this PR, which appears to have been implemented in MonitorLocal::dataPut()?
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New set of tests have been added that verify correct behavior of the changed set.
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This PR resolves issue with changed field set in the case where the top level (master) field ("_") is not requested by the client, but the master field callback causes all fields to be marked as updated, rather than only those fields that have actually been modified. The example below shows how the code works with this PR: the PV structure contains 4 fields, with the field 'z' the only one not being updated on the server side, and this is indicated correctly using pvmonitor and printing only fields that changed (after the initial update):
$ pvmonitor -m -r '' -v a a structure int x 89 int y 178 float z 0 int i 2 a structure int x 69 int y 138 int i 3 a structure int x 39 int y 78 int i 4Without this fix, all fields would be marked as updated.