tree 26aa4adba65e3828a4aa61e7d579fa868ec19f76
parent ee8526bd97e6abdb9b1021b337b04d2d12f8876b
author Abdullah Alamoudi <bamousaa@gmail.com> 1522447935 -0700
committer abdullah alamoudi <bamousaa@gmail.com> 1522455182 -0700

[NO ISSUE][STO] Misc fixes in storage

- user model changes: no
- storage format changes: no
- interface changes: no

Details:
- Blocking IO callback used to wait for any notification on the
  callback before returning. The behaviour was fixed to only return
  if the completion flag was set on afterFinalize.
- Reading and writing to and from memory component's didn't do any
  locking and so, this could read to concurrency issues.
- Reading metadata values used to rely on pointables which can be
  problematic because then the caller will need to latch/pin the
  page correctly. To avoid this, readers of metadata pages will
  always take a copy of the metadata.

Change-Id: I4bdc4c16a9c126d311378e56651632bbb4a50864
Reviewed-on: https://asterix-gerrit.ics.uci.edu/2548
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: abdullah alamoudi <bamousaa@gmail.com>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Contrib: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Murtadha Hubail <mhubail@apache.org>