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
Now, the number of elements in each simulated stats_event is correctly
sampled from a uniform distribution.
Rerunning the benchmarking tests indicates that truncating the buffer
increases the number of cycles require to log an event by only 1.6%.
Test: m libstatssocket_benchmark
Test: bit libstatssocket_benchmark:*
Change-Id: I8d5c1734861038beec8eeb7ce1f84a24bde25a75
We now truncate the buffer to the appropriate length when clients call
stats_event_build().
Benchmarking tests indicate that truncating the buffer to the
appropriate length increases the cost clients pay to write to the socket
by 2%. This is negligible enough that I decided to truncate the buffer
for both pushed and pulled atoms in order to simplify the API.
Test: m libstatssocket
Test: bit libstatssocket_benchmark:*
Bug: 144126231
Change-Id: I35dec748ff87c0821d0d06779a406997e6e64966
Merged-In: Ife976bb383ecff8de5064730692a95e2a3a82c9d
Tej Singh