queue.h

#ifndef _QUEUE_H
#define _QUEUE_H

struct queue {
    int32_t size;                   
    int32_t elem;                   
    int32_t head;                   
    int32_t tail;                   
    void **data;                    
};

struct queue *hf_queue_create(int32_t size);
int32_t hf_queue_destroy(struct queue *q);
int32_t hf_queue_count(struct queue *q);
int32_t hf_queue_addtail(struct queue *q, void *ptr);
void *hf_queue_remhead(struct queue *q);
void *hf_queue_remtail(struct queue *q);
void *hf_queue_get(struct queue *q, int32_t elem);
int32_t hf_queue_set(struct queue *q, int32_t elem, void *ptr);
int32_t hf_queue_swap(struct queue *q, int32_t elem1, int32_t elem2);

#endif