Yi Wu d6ae6dec69 Add Statistics::getAndResetTickerCount(). ... Summary: A convience method to atomically get and reset ticker count. I'm wanting to use it to have a thin wrapper to the statistics object to export ticker counts to ODS for LogDevice (since they don't even use fb303). Test Plan: test in LogDevice shadow cluster. https://fburl.com/461868822 Reviewers: andrewkr, yhchiang, IslamAbdelRahman Reviewed By: IslamAbdelRahman Subscribers: andrewkr, dhruba, leveldb Differential Revision: https://reviews.facebook.net/D64869		2016-10-11 10:54:11 -07:00
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rocksdb	Add Statistics::getAndResetTickerCount().	2016-10-11 10:54:11 -07:00