dafc37b585
1) PVRecord now has two new methods: setAsLevel and setAsGroup.
2) The following special records are DEPRECATED: addRecord,processRecord,removeRecord, and traceRecord.
They are replaced by pvdbcrAddRecord,pvdbcrProcessRecord,pvdbcrRemoveRecord, and pvdbcrTraceRecord.
3) A new convention is that all special records start with pvdbcr, which means pvDatabase Create Record.
4) pvdbcrAddRecord,pvdbcrProcessRecord,pvdbcrRemoveRecord, and pvdbcrTraceRecord are like what they replace.
But they also allow the asLevel to be set when they are created.
5) pvdbcrScalar and pvdbcrScalarArray are new special records.
They created records that have fields value, alarm, and timeStamp.
value can have any of the allowed scalar types, i.e. boolean,byte,...,string.
pvDatabaseCPP
The EPICS pvDatabase module provides a set of network accessible, smart, memory resident records with a C++ API. Each record has data composed of a top level PVStructure. Each record has a name which is the channelName for pvAccess. A local Channel Provider implements the complete ChannelProvider and Channel interfaces as defined by pvAccess. The local provider gives access to the records in the pvDatabase. This local provider is accessed by the remote pvAccess server. A record is smart because code can be attached to a record, which is accessed via a method named process.
The pvDatabase module implements a synchronous C++ server interface to pvAccessCPP that was designed to be easier to use than the basic pvAccess server API.
Links
- General information about EPICS can be found at the EPICS Controls website.
- API documentation for this module can be found in its documentation directory, in particular the file pvDatabaseCPP.html
Building
This module is included as a submodule of a full EPICS 7 release and will be compiled during builds of that software.
Examples
Some examples are available in the separate exampleCPP module.