Change provider_options so that it does not depend on provider.
Call into config_service when provider is created, i.e. after
library is loaded, before it is initialized, so that we can
inject additional options at startup.
Change the signature of the call provider options callback to
take provider_options object as parameter.
- Change default WITH_BOOST path to reside inside source tree
to avoid permission problems or accidentally overwriting
directories outside source tree.
- If system Boost installation is not found, optionally use
header only unit test framework from location specified by
WITH_BOOST.
- Fix extra-semi warning in provider_options.hpp.
This commit introduces provider_options module which
acts as a proxy between application and wsrep provider
library.
When initialized, the provider options are read from the
provider through config service api extension. A lookup
table with current values and defaults is constructed.
Parameter names are mapped so that dots in provider parameter
names are transformed to underscores.
