Use MessageLoopThread in A2DP source, JNI, BTA, HCI and module bring-up
* Replace OSI thread with MessageLoopThread in
- btif_a2dp_source (A2DP encoding thread)
- btif_core (JNI thread)
- btu_init (BTA thread)
- hci_layer (HCI thread)
- module (module bring up thread)
- various unit test threads
* Code that uses reactor from OSI thread is not replaced in this change
because they need to move from using reactor to message loop first
* Main difference:
- HCI layer no longer has access to mutex protecting message loop
set up and tear down. Messages posted to thread after ShutDown()
is called become no-op
- In all cases QuitClosure() is used instead of QuitWhenIdleClosure().
This means that we will never force kill a thread. An infinite loop
will delay the shutdown of Bluetooth stack.
* do_in_hci_thread is actually do_in_bta_thread
* Move the definition of do_in_bta_thread from bta to btu since btu is
where the thread actually lives
* Remove bta_closure_api.h and replace it with stack/include/btu.h
* Remove header inclusion in bta_sys.h and include stack/include/btu.h
in individual compilation units
* Fixed a bug in btif_cleanup_bluetooth where btif_jni_disassociate()
was not called on the JNI thread
* Make setting real time priority a requirement
* Crash during the following scenario:
- When btif_profile_queue cleanup failed to be scheduled on JNI thread
- When A2DP encoder thread failed to gain real time priority
- When BTA thread failed to start up
- When BTA thread failed to gain real time priority
- When BTA thread failed to schedule its first callback
* Turn off Bluetooth in the following scenario:
- When HCI thread failed to gain real time priority
- When bt_workqueue thread failed to gain real time priority
Bug:
110303473
Test: make, native and Java unit tests,
Connect to headset and listen to music through A2DP,
testplans/details/184455/3975
Change-Id: Ib448992fc0ba5af82c2d117dd65f1abd45d2acb6
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