36372 mbed / Mbed 2 deprecated SP14P1_skeleton

skeleton for lab1

Dependencies:   AvailableMemory mbed-rtos mbed

Fork of helloaabbc by 32314 mbed

RingBuffer.cpp@0:1c8f2727e9f5, 2014-04-03 (annotated)

Committer:
y7jin
Date:
Thu Apr 03 22:56:32 2014 +0000
Revision:
0:1c8f2727e9f5
hello

Who changed what in which revision?

UserRevisionLine numberNew contents of line
y7jin 0:1c8f2727e9f5 1 #include "RingBuffer.h"
y7jin 0:1c8f2727e9f5 2
y7jin 0:1c8f2727e9f5 3 void RingBuffer::insert(int sample){
y7jin 0:1c8f2727e9f5 4 if((end+1)%bufSize==start){
y7jin 0:1c8f2727e9f5 5 start=(start+1)%bufSize;
y7jin 0:1c8f2727e9f5 6 cur=start;
y7jin 0:1c8f2727e9f5 7 count--;
y7jin 0:1c8f2727e9f5 8 }
y7jin 0:1c8f2727e9f5 9 buf[end]=sample;
y7jin 0:1c8f2727e9f5 10 end=(end+1)%bufSize;
y7jin 0:1c8f2727e9f5 11 count++;
y7jin 0:1c8f2727e9f5 12 }
y7jin 0:1c8f2727e9f5 13
y7jin 0:1c8f2727e9f5 14 int RingBuffer::next(){
y7jin 0:1c8f2727e9f5 15 int ret=buf[cur];
y7jin 0:1c8f2727e9f5 16 cur=(cur+1)%bufSize;
y7jin 0:1c8f2727e9f5 17 if ((cur >= end) && (count < bufSize)) cur = start;
y7jin 0:1c8f2727e9f5 18 return ret;
y7jin 0:1c8f2727e9f5 19 }
y7jin 0:1c8f2727e9f5 20
y7jin 0:1c8f2727e9f5 21 void RingBuffer::dump(FILE *fp)const{
y7jin 0:1c8f2727e9f5 22 if(!fp){
y7jin 0:1c8f2727e9f5 23 int i=start;
y7jin 0:1c8f2727e9f5 24 while(i!=end){
y7jin 0:1c8f2727e9f5 25 printf("%d\r\n", buf[i]);
y7jin 0:1c8f2727e9f5 26 i=(i+1)%bufSize;
y7jin 0:1c8f2727e9f5 27 }
y7jin 0:1c8f2727e9f5 28 }else{
y7jin 0:1c8f2727e9f5 29 int i=start;
y7jin 0:1c8f2727e9f5 30 while(i!=end){
y7jin 0:1c8f2727e9f5 31 fprintf(fp, "%d\r\n", buf[i]);
y7jin 0:1c8f2727e9f5 32 i=(i+1)%bufSize;
y7jin 0:1c8f2727e9f5 33 }
y7jin 0:1c8f2727e9f5 34 }
y7jin 0:1c8f2727e9f5 35 }