Github user pivotal-jbarrett commented on a diff in the pull request:
https://github.com/apache/geode-native/pull/37#discussion_r103354398
--- Diff: src/cppcache/include/geode/CacheStatistics.hpp ---
@@ -102,8 +102,8 @@ class CPPCACHE_EXPORT CacheStatistics : public
SharedBase {
virtual void setLastAccessedTime(uint32_t lat);
virtual void setLastModifiedTime(uint32_t lmt);
- volatile uint32_t m_lastAccessTime;
- volatile uint32_t m_lastModifiedTime;
+ std::atomic<uint32_t> m_lastAccessTime;
+ std::atomic<uint32_t> m_lastModifiedTime;
--- End diff --
The original code was using atomic operations already, just from multiple
platform specific sources. std::atomic gets compiled into whatever is most
performant for the platform. I would guess that this is actually faster than
whatever we were doing on each platform since many were function calls into
another library. This code will get compiled to atomic put opcodes on most
platforms (with appropriate memory synchronization between caches).
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