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Matheus
23 lines
424 B
C
23 lines
424 B
C
#ifndef _SPINLOCK_H
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#define _SPINLOCK_H
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#include <stdbool.h>
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typedef int spinlock_t;
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#define SPINLOCK_INIT(x) x = 0;
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static inline void spinlock_acquire(spinlock_t *lock){
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while(!__sync_bool_compare_and_swap(lock, 0, 1)) asm("pause");
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}
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static inline bool spinlock_try(spinlock_t *lock){
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return __sync_bool_compare_and_swap(lock, 0, 1);
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}
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static inline void spinlock_release(spinlock_t *lock){
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*lock = 0;
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}
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#endif
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