From 2326e9b21c4a332e00f9709606089a1e6d0e11eb Mon Sep 17 00:00:00 2001
From: Samuel Tan <samueltan@google.com>
Date: Fri, 15 Apr 2016 13:06:12 -0700
Subject: StateMachine: reset LogRecords.mOldestIndex in LogRecords.setSize

Reset LogRecords.mOldestIndex when we resize LogRecords with
LogRecords.setSize(), so that LogRecords.get() will use the
correct index to fetch log records.

BUG: 28214608
Change-Id: I58d94d9fe61af6a0e9cba224ff98aad36eb3cd1d
---
 core/java/com/android/internal/util/StateMachine.java | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/core/java/com/android/internal/util/StateMachine.java b/core/java/com/android/internal/util/StateMachine.java
index dc668189c771..39fd36b9058c 100644
--- a/core/java/com/android/internal/util/StateMachine.java
+++ b/core/java/com/android/internal/util/StateMachine.java
@@ -593,7 +593,11 @@ public class StateMachine {
          * @param maxSize number of records to maintain at anyone time.
         */
         synchronized void setSize(int maxSize) {
+            // TODO: once b/28217358 is fixed, add unit tests  to verify that these variables are
+            // cleared after calling this method, and that subsequent calls to get() function as
+            // expected.
             mMaxSize = maxSize;
+            mOldestIndex = 0;
             mCount = 0;
             mLogRecVector.clear();
         }
-- 
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