avoid bug

test/buffer_pool_manager_extreme_test.cpp

@@ -0,0 +1,97 @@
+#include<iostream>
+#include"./MemoryRiver.hpp"
+#include"./MemoryRiverStd.hpp"
+#include<cstdlib>
+
+using namespace std;
+
+struct T{
+    int a[1000];
+    int sum,num;
+    int f(){
+        int res=0;
+        for (size_t i = 0; i < 1000; i++)
+        {
+            res+=a[i];
+        }
+        if (res!=sum) return -1;
+        return res;
+    }
+
+    T():sum(0),num(0){
+        for (size_t i = 0; i < 1000; i++)
+        {
+            a[i]=rand()*rand()>>10;
+            sum+=a[i];
+        }
+    }
+
+    void g(){
+        for (size_t i = 0; i < 1000; i++)
+        {
+            a[i]*=2;
+        }
+        sum*=2;
+    }
+
+    bool operator!=(const T & other){
+        if (sum!=other.sum) return true;
+        if (num!=other.num) return true;
+        for (size_t i = 0; i < 1000; i++)
+        {
+            if (a[i] != other.a[i]) return true;
+        }
+        return false;
+    }
+};
+
+const int n=30000;
+sol::MemoryRiver<T,4> STD("STD.file");
+MemoryRiver<T,4> mr("save.file");
+int off[n],offSTD[n];
+T tmp,tmpSTD;
+
+int main(){
+    srand(2333);
+    mr.initialise();
+    STD.initialise();
+    for (size_t i = 0; i < n; i++)
+    {
+        tmp.num=i;
+        off[i] = mr.write(tmp);
+        offSTD[i] = STD.write(tmp);
+    }
+    int r=0,rSTD=0;
+    while (r<n)
+    {
+        r=0;
+        rSTD = -1;
+        mr.get_info(r,3);
+        STD.get_info(rSTD,3);
+        if (r != rSTD) {
+            cout<<0;
+            return 0;
+        }
+        mr.read(tmp,off[r]);
+        STD.read(tmpSTD,offSTD[rSTD]);
+        if (tmp.f() != tmpSTD.f()) {
+            cout<<0;
+            return 0;
+        }
+        r+=2;
+        rSTD+=2;
+        mr.write_info(r,3);
+        STD.write_info(rSTD,3);
+    }
+    for (size_t i = 0; i < n; i++)
+    {
+        mr.read(tmp,off[i]);
+        STD.read(tmpSTD,offSTD[i]);
+        if (tmp!=tmpSTD) {
+            cout<<0;
+            return 0;
+        }
+    }
+    cout<<1;
+    return 0;
+}