19 lines
688 B
C
19 lines
688 B
C
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struct lock_free_queue {
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_Atomic(int) head;
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_Atomic(int) tail;
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_Atomic(int) temp;
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// The following aren't written to by
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// push and pop operations, therefore
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// don't need to be atomic.
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int size; // Capacity of the queue (item count)
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int cell; // Size of a single item (in bytes)
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char *base; // Pointer to the first item
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};
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void lock_free_queue_init(struct lock_free_queue *q, void *arrptr, int arrlen, int item_size);
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void lock_free_queue_push(struct lock_free_queue *q, void *src);
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void lock_free_queue_pop(struct lock_free_queue *q, void *dst);
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#define lock_free_queue_INIT(q, arr) lock_free_queue_init(q, arr, sizeof(arr), sizeof((arr)[0])) |