If we make any changes to SHM, we should switch to a setup where the memory is
read only. The idea is to allow multiple readers.
The trick to implementing that is to have 2 counters.
X and Y are initialized to the same value.
The writer bumps X, updates the data, then bumps Y.
The reader grabs Y, grabs the data, then grabs X.
If X and Y are the same the data is valid. If not, try again.
--
These are my opinions. I hate spam.
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