zbcache.nc

来自「IEEE802.15.4标准下的基于ZIGBEE协议栈的物理及链路层的代码」· NC 代码 · 共 62 行

/******
 * FIFO cache interface
 */

interface ZbCache<t> {

/*****
 * get a empty element from free queue, return NULL if free queue is empty.
 * after call fetchFree(), the first element in free queue will be delete. 
 * producer should fill the element and put it into full queue for consumer use. 
 */ 	
async command t* fetchFree();



/****
 * put the element into free queue, return SUCCESS if put success, FAIL otherwise.
 * after using the element, consumer should put it back into free queue for producer use. 
 */ 	
async command error_t putFree(t* pElement);


/**
 * get the first full element from full queue, return NULL if full queue is empty.
 * after call getFree(), the first element in full queue will not be delete.  
 */ 	
async command t* getFull();



/**
 * get the first full element from full queue, return NULL if full queue is empty.
 * after call fetchFree(), the first element in full queue will be delete.  
 */ 	
async command t* fetchFull();



/**
 * put the element into end of full queue, return SUCCESS if put success, FAIL otherwise.
 * producer should put the element into full queue after fill element.
 */ 	
async command error_t putFull(t* pElement);
	


/**
 * return the number of free element in queue.
 * 
 */ 	
async command uint8_t getFreeNum();



/**
 * return the number of full element in queue.
 * 
 */ 	
async command uint8_t getFullNum();

}