commit 17a58b2560c38a8e31a38186f9ab6eb98a38e229
author Eric Laurent <elaurent@google.com> Wed Aug 17 13:53:12 2016 +0200
committer Eric Laurent <elaurent@google.com> Wed Aug 17 19:17:04 2016 +0200
tree 70f3a93d1c866bbafefdc5ed6647d007bbb01689
parent eb2c7c372615427b3b6350f1f563382b0b70917e

audioflinger: add watchdog on main mutex

Check every 10 seconds if main audioflinger mutex can be acquired and
trigger audioserver process restart if not.
This will allow to capture tombstones of locked up situations and avoid
the disruption of a system_server restart.

Bug: 30737845
Bug: 30388410
Change-Id: I8a78b8cf813982f70ea598a6d42affc0ecaa76c9

services/audioflinger/Android.mk

diff --git a/services/audioflinger/Android.mk b/services/audioflinger/Android.mk
index 8b831f0..05dacac 100644
--- a/services/audioflinger/Android.mk
+++ b/services/audioflinger/Android.mk
@@ -3,7 +3,8 @@
 include $(CLEAR_VARS)
 
 LOCAL_SRC_FILES := \
-    ServiceUtilities.cpp
+    ServiceUtilities.cpp \
+    LockWatch.cpp
 
 # FIXME Move this library to frameworks/native
 LOCAL_MODULE := libserviceutility