#include <cstdlib>
#include <stdio.h>
#include <string.h>
#include <unistd.h>

using namespace std;

struct Test
{
private:
    char * Array;
    int ArraySize;
public:
    Test()
    {
        ArraySize = 0;
    }
    ~Test()
    {
        FreeArray();
    }
    Test(const Test & _t){
        ArraySize = 0;
        _t.Clone(this);
    }
    void Clone(Test * t) const
    {
        t->SetArray(Array, ArraySize);
    }
    void SetArray(const char buffer_in[], int bufferSize)
    {
        FreeArray();
        if(bufferSize > 0)
        {
            ArraySize = bufferSize;
            Array = new char[ArraySize];
            memcpy(Array, buffer_in, ArraySize);
        }
    }
    void GetArray(char * buffer_out, int bufferSize)
    {
        if(bufferSize > 0)
        {
            memset(buffer_out, 0, bufferSize);
            if(ArraySize>0)
            {
                int copyLen = ArraySize > bufferSize ? bufferSize : ArraySize;
                memcpy(buffer_out, Array, copyLen);
            }
        }
    }
    void FreeArray()
    {
        if(ArraySize>0)
        {
            delete [] Array;
        }
        ArraySize = 0;
    }
};

void TestFunction(Test test)
{
    char buffer[1024];
    test.GetArray(buffer, 1024);
    printf("%s \n", buffer);
}

int main(int argc, char** argv) {

    Test test_s;

    test_s.SetArray("12345678901234567890", 10);
    for(int i1=0;i1<1000000;i1++)
    {
        printf(" %d call \n", i1);
        TestFunction(test_s);
        usleep(50 * 1000);
    }
    printf(" end \n");
    return 0;
}