BitShares-Core  4.0.0
BitShares blockchain implementation and command-line interface software
block_database.hpp
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24 #pragma once
25 #include <fstream>
27 
28 #include <fc/filesystem.hpp>
29 
30 namespace graphene { namespace chain {
31  struct index_entry;
32  using namespace graphene::protocol;
33 
35  {
36  public:
37  void open( const fc::path& dbdir );
38  bool is_open()const;
39  void flush();
40  void close();
41 
42  void store( const block_id_type& id, const signed_block& b );
43  void remove( const block_id_type& id );
44 
45  bool contains( const block_id_type& id )const;
46  block_id_type fetch_block_id( uint32_t block_num )const;
47  optional<signed_block> fetch_optional( const block_id_type& id )const;
48  optional<signed_block> fetch_by_number( uint32_t block_num )const;
50  optional<block_id_type> last_id()const;
51  size_t blocks_current_position()const;
52  size_t total_block_size()const;
53  private:
54  optional<index_entry> last_index_entry()const;
55  fc::path _index_filename;
56  mutable std::fstream _blocks;
57  mutable std::fstream _block_num_to_pos;
58  };
59 } }
Definition: api.cpp:56
provides stack-based nullable value similar to boost::optional
Definition: optional.hpp:20
at< List, length< List >()-1 > last
Get the type at the end of the list.
Definition: typelist.hpp:193
wraps boost::filesystem::path to provide platform independent path manipulation.
Definition: filesystem.hpp:28