Add usePooledBuffer flag to the Builder which determines whether to reuse
the Buffer's byte array in StatsEvent or use a copy.
The build() function also calls release() on the Buffer
if a copy of the Buffer's byte array is passed to StatsEvent.
Also, for pushed events, release the StatsEvent object and consequently,
the Buffer in StatsLog.write(StatsEvent)
Fixes: 145026572
Fixes: 144126444
Test: bit FrameworksCoreTests:android.util.StatsEventTest
Change-Id: I1cdaf0027b69281cb7cb6f3c8ca923d03829b4dd
The change is guarded by STATS_SCHEMA_LEGACY flag in the autogenerator
Android.bp.
The flag can only be removed once rest of statsd switches over to the
new socket schema.
The new autogeneration uses StatsEvent for both Mainline module
clients and the default platform client. For Mainline modules, the
autogenerated code uses a runtime dessert version check to use new
socket schema on R+ platforms and the legacy schema on the older
platforms.
The legacy schema is encapsulated in a separate autogenerated inner
class called QLogger.
generated DocumentsStatsLog.java: https://paste.googleplex.com/4665805503463424
generated StatsLogInternal.java: https://paste.googleplex.com/5955095055302656
generated android_util_StatsLogInternal.cpp:
https://paste.googleplex.com/6737331711115264
Bug: 142811546
Test: m -j && m -j DocumentsUIGoogle
Test: Flashes successfully and events are logged to statsd
Change-Id: I4c804eaf4d5ae78001146c89ebe46dfb0a453853
