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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 854 | serge | 1 | |
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| 6 | { |
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| 7 | atomic_t val; |
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| 8 | } spinlock_t; |
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| 9 | |||
| 10 | |||
| 11 | * SPINLOCK_DECLARE is to be used for dynamically allocated spinlocks, |
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| 12 | * where the lock gets initialized in run time. |
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| 13 | */ |
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| 14 | |||
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| 17 | |||
| 18 | * SPINLOCK_INITIALIZE is to be used for statically allocated spinlocks. |
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| 19 | * It declares and initializes the lock. |
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| 20 | */ |
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| 21 | |||
| 22 | |||
| 23 | spinlock_t slname = { \ |
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| 24 | .val = { 0 } \ |
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| 25 | } |
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| 26 | |||
| 27 | |||
| 28 | extern int spinlock_trylock(spinlock_t *sl); |
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| 29 | |||
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| 32 | |||
| 33 | * |
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| 34 | * Unlock spinlock. |
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| 35 | * |
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| 36 | * @param sl Pointer to spinlock_t structure. |
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| 37 | */ |
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| 38 | static inline void spinlock_unlock(spinlock_t *sl) |
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| 39 | { |
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| 40 | ASSERT(atomic_get(&sl->val) != 0); |
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| 41 | |||
| 42 | |||
| 43 | * Prevent critical section code from bleeding out this way down. |
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| 44 | */ |
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| 45 | // CS_LEAVE_BARRIER(); |
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| 46 | |||
| 47 | |||
| 48 | // preemption_enable(); |
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| 49 | } |
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| 50 | |||
| 51 | |||
| 52 | |||
| 53 | |||
| 54 | #define SPINLOCK_DECLARE(name) |
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| 55 | #define SPINLOCK_EXTERN(name) |
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| 56 | #define SPINLOCK_INITIALIZE(name) |
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| 57 | |||
| 58 | |||
| 59 | #define spinlock_lock(x) |
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| 60 | #define spinlock_trylock(x) |
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| 61 | #define spinlock_unlock(x) |
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| 62 | |||
| 63 | |||
| 64 |