Implicit Memory Barriers
- by foo
let's say i have variables A, B and C that two threads (T1, T2) share.
i have the following code:
//T1
//~~
A = 1;
B = 1;
C = 1;
InterlockedExchange(ref Foo, 1);
//T2 (executes AFTER T1 calls InterlockedExchange)
//~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
InterlockedExchange(ref Bar, 1);
WriteLine(A);
WriteLine(B);
WriteLine(C);
Question:
does calling InterlockedExchange (implicit full fence) on T1 and T2, gurentess that T2 will "See" the write done by T1 before the fence? (A, B and C variables), even though those variables are not plance on the same cache-line as Foo and Bar?
