Diff: RingBuffer.h

Revision:

1:8f2a3144902b

Parent:

0:5373472190f5

Child:

2:db4675083c8c

diff -r 5373472190f5 -r 8f2a3144902b RingBuffer.h
--- a/RingBuffer.h	Fri Oct 30 05:20:40 2015 +0000
+++ b/RingBuffer.h	Fri Oct 30 06:34:07 2015 +0000
@@ -3,7 +3,7 @@
 #include "mbed.h"
 #include <string>
 
-//#define BufSize     256
+#define MaxBufSize     1024
 
 #ifdef RTOS_H
 extern Mutex mutex;
@@ -12,19 +12,25 @@
 class RingBuffer
 {
 public:
+    // Reccomend 2^n: pow(2,n)
     RingBuffer(unsigned int size= 256);
     ~RingBuffer();
 
+    bool empty();
+
     bool set(char chr);
     bool set(string &str);   // Return Full、参照渡し
 
     string get();
-
+    
 private:
-    volatile bool empty;
-    volatile unsigned short idxF, idxR;    // front, rear
+    volatile bool _empty;
+    unsigned short idxF, idxR;    // front, rear
     char *buf;
     unsigned int bufSize;
+    // %
+    bool isPowers2;
+    void modulo(unsigned short &idx);
 };
 
 // eof
\ No newline at end of file