24 lines
476 B
C
24 lines
476 B
C
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#pragma once
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/* This data structure holds one item, and returns you the old item when you replace it
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it's sort of a "stack of 1" */
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct lfitem_struct_t
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{
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void * volatile item;
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} lfitem_value_t, *lfitem_t;
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void lfitem_init(lfitem_t item);
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void *lfitem_get(lfitem_t item);
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void *lfitem_set(lfitem_t item, const void *value);
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void *lfitem_set_if_zero(lfitem_t item, void *value);
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#ifdef __cplusplus
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}
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#endif
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