Oipo commented on pull request #214: URL: https://github.com/apache/celix/pull/214#issuecomment-623172986
So there are two ways to use atomics in C11: 1) use the _Atomic specifier. No atomic functions are possible, but assign/increment/decrement are all usable as normal and atomic. I believe these are all SEQ_CST operations, so everything includes a memory fence now. 2) Do not use the _Atomic specifier, but use atomic_init and assorted functions. This allows for relaxing the memory model where needed, pollutes the code but eliminates the memory fences and doesn't reduce performance. However, most operations are not in a hot loop so I believe performance is not worth the polluting of code. Which of the two should we go for? ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: [email protected]
