Interlocked.Increment sample does not raise memory barriers for static variables #4585
Description
Docs page:
https://docs.microsoft.com/en-us/dotnet/api/system.threading.interlocked.increment?view=netcore-3.1
Relevant code section:
static int totalCount = 0;
static int totalMidpoint = 0;
static int midpointCount = 0;These variables are accessed by different threads but only writes are protected (using Interlocked.Add / Interlocked.Increment).
However all reads should be protected too (otherwise different threads can read stale values). volatile would be the simplest way, but due to its complexity most prefer something like Interlocked.CompareExchange or even regular locks.