BatteryStats: Introduce Async external stats requests
Instead of calling out to external processes with a blocking IPC,
pass along a Binder on which the external process can pass back
the response. The calling process can then wait for the reply with
a timeout.
This eliminates watchdog restarts of the system_server when an external
process like telephony or bluetooth hangs.
Bug:26842468
Change-Id: I1b242e4ed22a63f1a4a0be8c78de8ac4d7bf56c5
diff --git a/core/java/android/os/BatteryStats.java b/core/java/android/os/BatteryStats.java
index 773e7dd..7f94d0e 100644
--- a/core/java/android/os/BatteryStats.java
+++ b/core/java/android/os/BatteryStats.java
@@ -242,6 +242,8 @@
private static final String VIDEO_DATA = "vid";
private static final String AUDIO_DATA = "aud";
+ public static final String RESULT_RECEIVER_CONTROLLER_KEY = "controller_activity";
+
private final StringBuilder mFormatBuilder = new StringBuilder(32);
private final Formatter mFormatter = new Formatter(mFormatBuilder);