diff --git a/CMakeLists.txt b/CMakeLists.txt
index a9ae60c..81fb83b 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -29,3 +29,4 @@ endif(UNIX)
 
 add_subdirectory(src)
 add_subdirectory(sample)
+add_subdirectory(reader)
\ No newline at end of file
diff --git a/include/profiler/profiler.h b/include/profiler/profiler.h
index 2926132..f29ece5 100644
--- a/include/profiler/profiler.h
+++ b/include/profiler/profiler.h
@@ -102,6 +102,8 @@ namespace profiler
 		thread_id_t thread_id;
 
 		BaseBlockData(color_t _color, block_type_t _type);
+
+		timestamp_t duration() const { return (end - begin); }
 	};
 #pragma pack(pop)
 
@@ -109,6 +111,7 @@ namespace profiler
 	{
 			const char *name;
 			void tick(timestamp_t& stamp);
+			
 		public:
 
 			Block(const char* _name, color_t _color = 0, block_type_t _type = BLOCK_TYPE_MARK);
@@ -125,8 +128,26 @@ namespace profiler
 			inline void finish(){ tick(end); }
 
 			~Block();
-
 	};
+
+	class PROFILER_API SerilizedBlock
+	{
+		uint16_t m_size;
+		char* m_data;
+	public:
+		SerilizedBlock(profiler::Block* block);
+		SerilizedBlock(uint16_t _size, const char* _data);
+		SerilizedBlock(SerilizedBlock&& that);
+		~SerilizedBlock();
+
+		const char* const data() const { return m_data; }
+		uint16_t size() const { return m_size; }
+
+		const BaseBlockData * block();
+		const char* getBlockName();
+	};
+
+	
 }
 
 #endif
diff --git a/src/block.cpp b/src/block.cpp
index 41cd5eb..e1114c6 100644
--- a/src/block.cpp
+++ b/src/block.cpp
@@ -42,5 +42,8 @@ Block::~Block()
 
 		endBlock();
 	}
+	else{//for mark end equal begin
+		end = begin;
+	}
 	
 }
diff --git a/src/profile_manager.cpp b/src/profile_manager.cpp
index 7df46b2..22031ef 100644
--- a/src/profile_manager.cpp
+++ b/src/profile_manager.cpp
@@ -34,7 +34,14 @@ SerilizedBlock::SerilizedBlock(Block* block):
 	m_data = new char[m_size];
 	memcpy(&m_data[0], block, sizeof(BaseBlockData));
 	strncpy(&m_data[sizeof(BaseBlockData)], block->getName(), name_len);
+}
 
+SerilizedBlock::SerilizedBlock(uint16_t _size, const char* _data) :
+		m_size(_size),
+		m_data(nullptr)
+{
+	m_data = new char[m_size];
+	memcpy(&m_data[0], _data, m_size);
 }
 
 SerilizedBlock::~SerilizedBlock()
@@ -45,6 +52,23 @@ SerilizedBlock::~SerilizedBlock()
 	}
 }
 
+SerilizedBlock::SerilizedBlock(SerilizedBlock&& that)
+{
+	m_size = that.m_size;
+	m_data = that.m_data;
+	that.m_size = 0;
+	that.m_data = nullptr;
+}
+
+const BaseBlockData * SerilizedBlock::block()
+{
+	return (BaseBlockData*)m_data;
+}
+
+const char* SerilizedBlock::getBlockName()
+{
+	return (const char*)&m_data[sizeof(profiler::BaseBlockData)];
+}
 
 ProfileManager::ProfileManager()
 {
diff --git a/src/profile_manager.h b/src/profile_manager.h
index f109e50..4b726d2 100644
--- a/src/profile_manager.h
+++ b/src/profile_manager.h
@@ -27,19 +27,6 @@ along with this program.If not, see <http://www.gnu.org/licenses/>.
 #include <map>
 #include <list>
 
-class SerilizedBlock
-{
-	uint16_t m_size;
-	char* m_data;
-public:
-
-	SerilizedBlock(profiler::Block* block);
-	~SerilizedBlock();
-
-	const char* const data() { return m_data; }
-	uint16_t size() const { return m_size; }
-};
-
 class ProfileManager
 {
 	ProfileManager();
@@ -60,7 +47,7 @@ class ProfileManager
 
 	void _internalInsertBlock(profiler::Block* _block);
 
-	typedef std::list<SerilizedBlock*> serialized_list_t;
+	typedef std::list<profiler::SerilizedBlock*> serialized_list_t;
 	serialized_list_t m_blocks;
 public:
     static ProfileManager& instance();