1. Rename registerPullAtomCallback to setPullAtomCallback
2. Rename unregisterPullAtomCallback to clearPullAtomCallback
3. Change Ns to Millis for consistency with java
4. Swap metadata and callback params in setPullAtomCallback to match
java
5. Added getters for PullAtomMetadata
6. Added libstatspull_test to test PullAtomMetadata
7. Changed the types on setAdditiveFields from int to int32_t
Test: make
Test: atest LibStatsPullTests
Test: bit libstatspull_test:*
Bug: 1507885621
Bug: 151875223
Change-Id: I5cb07bfe71b1002180403828d5e8e6a5b88ce6fe
Libstatspull will ship as a part of the statsd apex in R.
Also update libstatssocket to have version 30 to align with api level,
as per native api council feedback.
Change both libraries to use NDK style naming conventions (AStatsEvent,
AStatsManager), and remove unneeded APIs in libstatssocket.
Remove KeyValuePairs from libstatssocket. KeyValuePairs will not be
supported in native code.
Bug: 147499386
Test: make libstatspull
Test: make libstatssocket
Test: atest libstatssocket_test
Change-Id: Ie79771461215a057529aaac91db95e4334c3960e