initial [broken] update

src/common/boost_serialization_helper.h

@@ -14,15 +14,55 @@ namespace tools
   bool serialize_obj_to_file(t_object& obj, const std::string& file_path)
   {
     TRY_ENTRY();
-    std::ofstream data_file;
-    data_file.open( file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
-    if(data_file.fail())
+#if defined(_MSC_VER)
+    // Need to know HANDLE of file to call FlushFileBuffers
+    HANDLE data_file_handle = ::CreateFile(file_path.c_str(), GENERIC_WRITE, 0, NULL, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL);
+    if (INVALID_HANDLE_VALUE == data_file_handle)
       return false;
 
+    int data_file_descriptor = _open_osfhandle((intptr_t)data_file_handle, 0);
+    if (-1 == data_file_descriptor)
+    {
+      ::CloseHandle(data_file_handle);
+      return false;
+    }
+
+    FILE* data_file_file = _fdopen(data_file_descriptor, "wb");
+    if (0 == data_file_file)
+    {
+      // Call CloseHandle is not necessary
+      _close(data_file_descriptor);
+      return false;
+    }
+
+    // HACK: undocumented constructor, this code may not compile
+    std::ofstream data_file(data_file_file);
+    if (data_file.fail())
+    {
+      // Call CloseHandle and _close are not necessary
+      fclose(data_file_file);
+      return false;
+    }
+#else
+    std::ofstream data_file;
+    data_file.open(file_path , std::ios_base::binary | std::ios_base::out| std::ios::trunc);
+    if (data_file.fail())
+      return false;
+#endif
+
     boost::archive::binary_oarchive a(data_file);
     a << obj;
+    if (data_file.fail())
+      return false;
 
-    return !data_file.fail();
+    data_file.flush();
+#if defined(_MSC_VER)
+    // To make sure the file is fully stored on disk
+    ::FlushFileBuffers(data_file_handle);
+    fclose(data_file_file);
+#endif
+
+    return true;
     CATCH_ENTRY_L0("serialize_obj_to_file", false);
   }