This cl modifies getStatsService to use the blocking getService, but
also makes the binder call in a separate thread to not block the client
thread. This is needed because it is possible for pullers to be
registered before statsd starts, and calling checkService before statsd
is up will fail. We also would never receive the binderDied to register
it, because we would never have a binder object to linkToDeath on.
Bug: 147682855
Test: atest LibStatsPullTests
Change-Id: I68c04bc24c7fe066eca88cab4f6a76885581c1ee
Changes the API to return an int instead of a bool.
Creates API to unregister pullers.
Test: atest LibStatsPullTests
Bug: 144373250
Change-Id: I6d395237082337a22f37190343a1fc59703d39bf
Create a new library for the native puller callback API. The library has
2 main interfaces: register_stats_pull_atom_callback, which is used to
register a callback, and stats_pull_atom_callback_t, which is the
callback for the puller. It also exposes pulled_stats_event_list, which
is a struct wrapper around a vector of stats_event.
Test: make libstatspull
Bug: 142969725
Change-Id: I14fe4dc523d6f81fdeaa3fe6fad3e95aeecfe92e
