Glauber Costa d41fcd45d1 memtables: make memtable inherit from region ...

The LSA memory pressure mechanism will let us know which region is the best
candidate for eviction when under pressure. We need to somehow then translate
region -> memtable -> column family.

The easiest way to convert from region to memtable, is having memtable inherit
from region. Despite the fact that this requires multiple inheritance, which
always raise a flag a bit, the other class we inherit from is
enable_shared_from_this, which has a very simple and well defined interface. So
I think it is worthy for us to do it.

Once we have the memtable, grabing the column family is easy provided we have a
database object. We can grab it from the schema.

Signed-off-by: Glauber Costa <glauber@scylladb.com>

2016-07-05 15:05:29 -04:00

12 KiB

Raw Blame History

View Raw