#include <type_traits>
#include <utility>
+#include <folly/detail/CacheLocality.h>
+
namespace folly {
/*
// (No real synchronization needed at destructor time: only one
// thread can be doing this.)
if (!std::is_trivially_destructible<T>::value) {
- size_t read = readIndex_;
- size_t end = writeIndex_;
- while (read != end) {
- records_[read].~T();
- if (++read == size_) {
- read = 0;
+ size_t readIndex = readIndex_;
+ size_t endIndex = writeIndex_;
+ while (readIndex != endIndex) {
+ records_[readIndex].~T();
+ if (++readIndex == size_) {
+ readIndex = 0;
}
}
}
}
private:
+ char pad0_[detail::CacheLocality::kFalseSharingRange];
const uint32_t size_;
T* const records_;
- std::atomic<unsigned int> readIndex_;
- std::atomic<unsigned int> writeIndex_;
+ FOLLY_ALIGN_TO_AVOID_FALSE_SHARING std::atomic<unsigned int> readIndex_;
+ FOLLY_ALIGN_TO_AVOID_FALSE_SHARING std::atomic<unsigned int> writeIndex_;
+
+ char pad1_[detail::CacheLocality::kFalseSharingRange - sizeof(writeIndex_)];
};
}