How do you ensure that variables are safe when there are two threads involved

Question

Anonymous · Accepted Answer

Use c++ atomics types , use built-in assembly atomics, use mutex

Hugo Mendes · Answer

If these variables form a critical section then that section must be protected by a lock, use java synchronized, a Lock like ReentrantLock or use a nonblocking algorithm by making use of the Atomic variables.

If the variables don't form a critical section, then you don't need locks, if possible use an object from Atomic package or make the variable volatile.

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