Timestamp, clock api and bugfix.
1) Add timestamp to values committed via watchable store.
2) Introduce a vanadium clock interface which provides
an estimated UTC timestamp.
3) Fix bug related to sequence number read by Wrap() method
while creating a watchable store. The bug would end up
reassigning the sequence number of the last commited tx
to a new tx to be committed by a newly created wstore
wrapper object.
This change adds a timestamp field to the LogEntry struct
which is stored for each operation that is committed as
part of a transaction using watchable store. Note that keys
that are not managed by store do not have a LogEntry
associated with them and hence will not have a timestamp.
The clock interface is introduced in this CL but for now
the implementation just uses the system time directly. This
will be addressed in the next CL to come.
Change-Id: I4e0e30ace5efc4388bbc9611d59964ac8ad59cc3
10 files changed
