no message

general/src/pattern/ringbuffer.hpp

@@ -2,10 +2,7 @@
 #define __RINGBUFFER__
 #include <memory>
 
-/**
- * author : caiyuzheng
- * function: a ringbuffer class
-*/
+
 #include<stdint.h>
 template <typename T> class RingBuffer{
 public:
@@ -40,7 +37,8 @@ RingBuffer<T>::RingBuffer(uint64_t size) :
     mData(nullptr),
     mSize(0),
     mCurrentTail(0),
-    mCurrentHead(0) {
+    mCurrentHead(0) 
+{
     mSize = size;
     mData = new T[size];
     mRemain = mSize;
@@ -125,18 +123,20 @@ int RingBuffer<T>::Add(T *data,uint64_t len){
         if(mCurrentHead == 0){
             memcpy(mData,data,bytes_write*sizeof(T));
             mCurrentTail = bytes_write;
+            mRemain -= bytes_write;
             return bytes_write;
         }else{
             /// |start |...| head also tail|...|end|
             if(mCurrentTail + bytes_write < mSize){
                 memcpy(&mData[mCurrentTail],data,(bytes_write)*sizeof(T));
                 mCurrentTail += bytes_write;
+                mRemain -= bytes_write;
             }else{
                 memcpy(&mData[mCurrentTail],data,(mSize - mCurrentTail)*sizeof(T));
                 std::cout<<"\r\n"<<(mCurrentTail + bytes_write)%mSize<<"\r\n";
                 memcpy(&mData[0],&data[mSize - mCurrentTail],(mCurrentTail + bytes_write)%mSize*sizeof(T));
                 mCurrentTail = (mCurrentTail + bytes_write)%mSize;
-                this->mRemain -= bytes_write;
+                mRemain -= bytes_write;
                 return bytes_write;
             }
         }
@@ -172,7 +172,6 @@ int RingBuffer<T>::Add(T *data,uint64_t len){
         mRemain -= bytes_write;
         return bytes_write;
     }
-
 }
 
 template<typename T>

test/src/cpp11/template.cpp

@@ -18,13 +18,12 @@ void TestRingBuffer(){
     }
     RingBuffer<int> x(1024);
     int ret = x.Add(in,512);
-    std::cout<<"add "<<ret<<"\r\n"<<std::endl;
+    std::cout<<"add "<<ret<<"  x.Length():" <<  x.Length() << " "<<std::endl;
     for(uint32_t i = 0;i < x.Length();i++){
         printf("%d ",x.At(i));
     }
     std::cout<<"\r\n----------------------------------"<<std::endl;
     x.SetEmpty();
-
     ret = x.Add(in,516);
     std::cout<<"add "<<ret<<"\r\n"<<std::endl;
     for(uint32_t i = 0;i < x.Length();i++){