RCUPtr for photon thread environment #529
Merged
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A simple RCUPtr implementation in photon environment, takes photon thread as reader/writer, based on rcu-qsbr.
RCU is a simple synchronize unit for concurrent read and light write.
RCU means Read-Copy-Update, Concurrent readers takes nearly no extra costs. only writer have to copy & update object and atomic switch pointer. Expired objects can always be free after grace period.
RCUPtr has a few common limits. IT IS NOT FOR ALL USERS.