27 lines
416 B
C
Executable File
27 lines
416 B
C
Executable File
#include "types.h"
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#include "cpulock.h"
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#include "spinlock.h"
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void spinlock_init(spinlock_t *lock)
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{
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lock->val &= ~3UL;
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}
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umword_t spinlock_lock(spinlock_t *lock)
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{
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umword_t status = 0;
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#if SMP
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status = cpulock_lock();
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#else
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#error “不支持SMP”
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#endif
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return status;
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}
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void spinlock_set(spinlock_t *lock, int status)
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{
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#if SMP
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cpulock_set(status);
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#else
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#error “不支持SMP”
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#endif
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}
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