25 lines
320 B
Plaintext
25 lines
320 B
Plaintext
C MP+porevlocks
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{}
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P0(int *x, int *y, spinlock_t *mylock)
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{
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int r0;
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int r1;
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r0 = READ_ONCE(*y);
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spin_lock(mylock);
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r1 = READ_ONCE(*x);
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spin_unlock(mylock);
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}
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P1(int *x, int *y, spinlock_t *mylock)
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{
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spin_lock(mylock);
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WRITE_ONCE(*x, 1);
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spin_unlock(mylock);
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WRITE_ONCE(*y, 1);
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}
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exists (0:r0=1 /\ 0:r1=0)
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