EPICS v4 Modules Overview
Learn about EPICS v4 modules, including PVD value container classes, PVA network protocol, and features like masarService. Explore the robust PVA gateway project and more in progress developments in the EPICS ecosystem.
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Presentation Transcript
An Overview of EPICS v4 Modules Michael Davidsaver Osprey DCS <mdavidsaver@ospreydcs.com>
Terminology EPICS v4 PVD (pvData) Value container classes Analogous to DBR types or GDD PVA (pvAccess) Network protocol Clients+Servers for this protocol sed -e 's/CA/PVA/'
Feature complete masarService Save/Compare/Restore Server saves, Client restores Curated pvaPy PVA client interface in Python pvaClientCPP/Java PVA wrapper API w/o callbacks pvaSrv PVA Server exposing records (PDB) pvDatabaseCPP/Java* Helper for shared state access ~= casPV/caServer normativeTypesCPP/Ja va PVD wrappers for standard structs *Prepend with https://github.com/epics- base/
In progress pva2pva PVA gateway Robust, but not feature complete Currently an open proxy, no access control/filtering QSRV Drop-in replacement for pvaSrv (reimplementation) Group operations and PVA links (with Base 3.16.1) https://github.com/mdavidsaver/pva2pva
