This is intended for use in tests where the worker
just executes some actions and then exits by itself.
Use of 'join' instead of 'stop' ensures that the
worker goes through all actions.
Bug: 205884982
Test: atest libaudioaidlcommon_test
Change-Id: I8a9f4f0bb786ee606e3b63a9847f414119716a7d
Fix the mistake of making StreamWorker to inherit
from the part which provides actual thread logic (Impl).
The lifetime of the logic object must be longer
than the lifetime of the StreamWorker's thread.
Otherwise, the thread could still have running while
the logic has already been destroyed (consider
the order of destructors in C++ class inheritance).
With this fix, the StreamWorker class does not have
to be a template anymore, thus reorganize the code
to move big methods into a .cpp file.
Bug: 205884982
Test: atest libaudioaidlcommon_test --iterations
Merged-In: I5bc2c8fd9d78a0fbc9fddab67456cc5214584045
Change-Id: I5bc2c8fd9d78a0fbc9fddab67456cc5214584045
(cherry picked from commmit 84024eccee)
Change-Id: I70958f437657b574cda6480c3216a0b1ea252433
