Maintain separate registries for clients and servers connections

[ralphlange]

@shroffk opened this issue on Sep 12, 2017:

@mdavidsaver

@mdavidsaver commented on Sep 12, 2017:

https://github.com/epics-base/pvAccessCPP/blob/master/src/client/pv/pvAccess.h#L1322

What is being referred are replacement of the one singleton ChannelProviderRegistry with two access through: ChannelProviderRegistry::clients() and ChannelProviderRegistry::servers().

As I think about it, there was a related change to ChannelProviderRegistry to allow providers to be created with a specific Configuration.

https://github.com/epics-base/pvAccessCPP/blob/master/src/server/pv/serverContext.h#L120

Also, servers can now be created directly with ChannelProvider instance(s) instead of going through the registry/factory process. I found this more natural as all existing server providers are really singletons where the factory concept only gets in the way.