#ifndef __FIFO_H__#define	__FIFO_H__typedef	void	*HFIFO;#define	FIFO_FLG_NOBLOCK	1#define	FIFO_FLG_BLOCK		0#define	E_COMMON		-1#define	E_BUSY			-2#define	E_FIFO_FULL		-3#define	E_FIFO_EMPTY		-4#define	E_FIFO_OVERSIZE		-5#ifdef __cplusplusextern "C" {#endif/* Create and destroy FIFO */HFIFO fifo_create(const char *fifoname, int nslot, size_t slotsz);void  fifo_destroy(HFIFO handle);/* Get an existing FIFO handle */HFIFO fifo_find_handle(const char *fifoname, size_t *pslotsz);/* Put and get data from FIFO */int fifo_put(HFIFO handle, void *data, size_t size, int flag);int fifo_get(HFIFO handle, void *buf,  size_t size, int flag);/* Tag trigger and reset */int fifo_tag_trigger(HFIFO handle, int tagid);int fifo_tag_check(HFIFO handle, int tagid);#ifdef __cplusplus};#endif#endif