acmepins.py 文件源码

def wait_edge(self,fd,callback,debouncingtime):
        # Convert in millisecondi
        debouncingtime=debouncingtime/1000.0 
        timestampprec=time.time()
        counter=0
        po = select.epoll()
        po.register(fd,select.EPOLLET)
        while True:
            events = po.poll()
            timestamp=time.time()
            if (timestamp-timestampprec>debouncingtime) and counter>0:
                callback()
            counter=counter+1
            timestampprec=timestamp