queue.h

自己编写的飞利浦LPC2200的串口驱动,可以支持在OS下和非OS下,主要通过在.h档下配置实现

#ifndef _QUEUE_H_
#define _QUEUE_H_

#include "config.h"

#ifndef NULL
#define NULL (void *)0
#endif

#define Queue_EnterCritical()		
#define Queue_ExitCritical()		

typedef unsigned char QUEUE_TYPE;

typedef struct
{
	unsigned int front;
	unsigned int rear;
	unsigned int length;
	unsigned int max;
	unsigned char initFlag;
	QUEUE_TYPE *buf;
}QUEUE;

typedef enum
{
	QRET_ERROR,
	QRET_OK,
	QRET_FULL,
	QRET_EMPTY
}QUEUE_RET;

QUEUE_RET QueueInit(QUEUE *queue, QUEUE_TYPE *buf, unsigned int length);
QUEUE_RET QueueIn(QUEUE *queue, QUEUE_TYPE data);
QUEUE_RET QueueOut(QUEUE *queue, QUEUE_TYPE *data);


#endif