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struct squeue_t {
int shmid;
int mode;
char *pool;
/* pointers */
int head_idx;
int squeue_idx;
/* counters */
int squeue_locks;
int squeue_lost;
int squeue_oops;
int squeue_pops;
};
#define Q_OPEN 0
#define Q_CREAT 1
#define Q_WAIT 2
int squeue_release(const char *file);
struct squeue_t *squeue_open(const char *file, int init);
int squeue_close(struct squeue_t *q);
void squeue_free(struct squeue_t *q);
int squeue_push(struct squeue_t *q, const char *str, int lock);
int squeue_pop(struct squeue_t *q);
char *squeue_get(struct squeue_t *q, int lock);
void squeue_stats(struct squeue_t *q);
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