25 lines
473 B
C
25 lines
473 B
C
#include "nu/lfitem.h"
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#include "foundation/atomics.h"
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void lfitem_init(lfitem_t item)
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{
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item->item=0;
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}
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void *lfitem_get(lfitem_t item)
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{
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return nx_atomic_swap_pointer(0, &(item->item));
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}
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void *lfitem_set(lfitem_t item, const void *value)
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{
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return nx_atomic_swap_pointer((void *)value, &(item->item));
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}
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void *lfitem_set_if_zero(lfitem_t item, void *value)
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{
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if (nx_atomic_cmpxchg_pointer(0, value, &(item->item)) == 0)
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return 0;
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else
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return (void *)value;
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} |