From 4036d58dc904a7a552280e6151f73679c9d7bc15 Mon Sep 17 00:00:00 2001
From: kailiu <hfevers@gmail.com>
Date: Tue, 21 Jan 2014 17:51:36 -0800
Subject: [PATCH] Fix a Statistics-related unit test faulure

Summary:
In my MacOS, the member variables are populated with random numbers after initialization.
This diff fixes it by fill these arrays with 0.

Test Plan: make && ./table_test

Reviewers: igor

CC: leveldb

Differential Revision: https://reviews.facebook.net/D15315
---
 util/statistics.cc | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/util/statistics.cc b/util/statistics.cc
index f19a777c1f..a850445edb 100644
--- a/util/statistics.cc
+++ b/util/statistics.cc
@@ -5,6 +5,7 @@
 //
 #include "util/statistics.h"
 #include "rocksdb/statistics.h"
+#include <algorithm>
 #include <cstdio>
 
 namespace rocksdb {
@@ -13,7 +14,11 @@ std::shared_ptr<Statistics> CreateDBStatistics() {
   return std::make_shared<StatisticsImpl>();
 }
 
-StatisticsImpl::StatisticsImpl() {}
+StatisticsImpl::StatisticsImpl() {
+  // Fill tickers_ with "zero". To ensure plasform indepedent, we used
+  // uint_fast64_t() instead literal `0` to represent zero.
+  std::fill(tickers_, tickers_ + TICKER_ENUM_MAX, uint_fast64_t());
+}
 
 StatisticsImpl::~StatisticsImpl() {}