49 lines
869 B
C
49 lines
869 B
C
#include "kernel/ke/atomic.h"
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#include "kernel/ke/spin_lock.h"
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void KABI ke_spin_lock_init(k_spin_lock_t *lock)
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{
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if (lock != NULL)
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{
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lock->val = 0;
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}
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}
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void KABI ke_spin_lock(k_spin_lock_t *lock)
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{
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if (lock != NULL)
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{
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while (ke_interlocked_compare_exchange_32(&lock->val, 0, 1) != 0);
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}
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return;
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}
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void KABI ke_spin_unlock(k_spin_lock_t *lock)
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{
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if (lock != NULL)
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{
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lock->val = 0;
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}
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return;
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}
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irql_t KABI ke_spin_lock_raise_irql(k_spin_lock_t *lock, irql_t irql)
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{
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irql_t prev_irql = ke_get_irql();
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if (lock != NULL)
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{
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ke_raise_irql(irql);
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ke_spin_lock(lock);
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}
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return prev_irql;
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}
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void KABI ke_spin_unlock_lower_irql(k_spin_lock_t *lock, irql_t irql)
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{
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if (lock != NULL)
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{
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ke_spin_unlock(lock);
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ke_lower_irql(irql);
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}
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return;
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} |