Add Data::StoreToFile

src/blobstore/implementations/ondisk/Data.cpp

@@ -1,12 +1,16 @@
 #include <blobstore/implementations/ondisk/Data.h>
 
 #include <stdexcept>
+#include <fstream>
+
+using std::ofstream;
+using std::ios;
 
 namespace blobstore {
 namespace ondisk {
 
 Data::Data(size_t size)
-: _data(std::malloc(size)) {
+: _size(size), _data(std::malloc(size)) {
   if (nullptr == _data) {
     throw std::bad_alloc();
   }
@@ -25,5 +29,14 @@ const void *Data::data() const {
   return _data;
 }
 
+size_t Data::size() const {
+  return _size;
+}
+
+void Data::StoreToFile(const boost::filesystem::path &filepath) const {
+  ofstream file(filepath.c_str(), ios::binary | ios::trunc);
+  file.write((const char*)_data, _size);
+}
+
 } /* namespace ondisk */
 } /* namespace blobstore */

src/blobstore/implementations/ondisk/Data.h

@@ -6,6 +6,8 @@
 //TODO Move this to a more generic utils
 #include "fspp/utils/macros.h"
 
+#include <boost/filesystem/path.hpp>
+
 namespace blobstore {
 namespace ondisk {
 
@@ -17,13 +19,17 @@ public:
   void *data();
   const void *data() const;
 
+  size_t size() const;
+
+  void StoreToFile(const boost::filesystem::path &filepath) const;
+
 private:
+  size_t _size;
   void *_data;
 
   DISALLOW_COPY_AND_ASSIGN(Data);
 };
 
-
 } /* namespace ondisk */
 } /* namespace blobstore */
 

src/blobstore/implementations/ondisk/OnDiskBlob.cpp

@@ -84,12 +84,7 @@ void OnDiskBlob::_fillDataWithZeroes() {
 }
 
 void OnDiskBlob::_storeToDisk() const {
-  ofstream file(_filepath.c_str(), ios::binary | ios::trunc);
-  _storeDataToStream(file);
-}
-
-void OnDiskBlob::_storeDataToStream(ostream &stream) const {
-  stream.write((const char*)_data.data(), _size);
+  _data.StoreToFile(_filepath);
 }
 
 } /* namespace ondisk */

src/test/blobstore/ondisk/OnDiskBlobLoadTest.cpp

@@ -25,8 +25,7 @@ public:
 
   void SetFileSize(size_t size) {
     Data data(size);
-    ofstream writer(file.path().c_str(), ios::trunc | ios::binary);
-    writer.write((char*)data.data(), size);
+    data.StoreToFile(file.path());
   }
 };