load super block

dev/mock_disk.cpp

@@ -1,31 +1,42 @@
 #include "mock_disk.h"
 #include <unistd.h>
+#include <iostream>
 
 using namespace Dev;
 
 _u32 MockDisk::read(MM::Buf& buf, _u32 size) {
-    f.read(buf.data, size);
+    std::cout << "\n开始读文件"<<ftell(f)<<std::endl;
+    fread(buf.data, size, 1, f);
+    // f.read(buf.data, size);
+    // for (int i = 0; i < size; i++)
+    //     std::cout << (int)buf.data[i];
     return size;
 }
 
 _u32 MockDisk::write(MM::Buf& buf, _u32 size) {
-    f.write(buf.data, size);
+    fwrite(buf.data, size, 1, f);
+    // f.write(buf.data, size);
     return size;
 }
 
 _u32 MockDisk::tell() {
-    return f.tellg();
+    return ftell(f);
 }
 
 void MockDisk::seek(_u32 pos) {
-    f.seekg(pos);
+    fseek(f, pos, SEEK_SET);
 }
 
 void MockDisk::open(const std::string& path) {
-    f.open(path, std::ios::in);
+    std::cout << "正在打开文件" << std::endl;
+    f = fopen(path.c_str(), "ab+");
+    // f.open(path, std::ios::binary);
+    if (f == nullptr) {
+        // std::cout << "文件打开错误"<< std::endl;
+        perror("文件打开错误");
+    }
 }
 
 void MockDisk::close() {
-    if (f.is_open())
-        f.close();
+    fclose(f);
 }