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32 lines
748 B
C
32 lines
748 B
C
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#pragma once
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#include "foundation/types.h"
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#include "nu/queue_node.h"
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#include "foundation/align.h"
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/* lock free stack object
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multiple threads can push and pop without locking
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note that order is not guaranteed. that is, if Thread 1 calls Insert before Thread 2, Thread 2's item might still make it in before.
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef NALIGN(8) struct lifo_struct_t
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{
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volatile queue_node_t *head;
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uint32_t aba;
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} lifo_t;
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/* use this to allocate an object that will go into this */
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queue_node_t *lifo_malloc(size_t bytes);
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void lifo_free(queue_node_t *ptr);
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void lifo_init(lifo_t *lifo);
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void lifo_push(lifo_t *lifo, queue_node_t *cl);
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queue_node_t *lifo_pop(lifo_t *lifo);
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#ifdef __cplusplus
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}
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#endif
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