Public Member Functions
	index_writer (const fc::path &block_index_name, uint32_t blocks_expected)

void	write (uint64_t pos)

Detailed Description

Definition at line 177 of file block_log.cpp.

Constructor & Destructor Documentation

◆ index_writer()

sysio::chain::detail::index_writer::index_writer	(	const fc::path &	block_index_name,
		uint32_t	blocks_expected )

Definition at line 1139 of file block_log.cpp.

   : _blocks_remaining(blocks_expected) {
      const size_t file_sz = blocks_expected*sizeof(uint64_t);
 
      fc::cfile file;
      file.set_file_path(block_index_name);
      file.open(LOG_WRITE_C);
      file.close();
 
      fc::resize_file(block_index_name, file_sz);
      _file.emplace(block_index_name.string().c_str(), boost::interprocess::read_write);
      _mapped_file_region.emplace(*_file, boost::interprocess::read_write);
   }

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Member Function Documentation

◆ write()

void sysio::chain::detail::index_writer::write ( uint64_t pos )

Definition at line 1153 of file block_log.cpp.

                                              {
      SYS_ASSERT( _blocks_remaining, block_log_exception, "No more blocks were expected for the block log index" );
 
      char* base = (char*)_mapped_file_region->get_address();
      base += --_blocks_remaining*sizeof(uint64_t);
      memcpy(base, &pos, sizeof(pos));
 
      if ((_blocks_remaining & 0xfffff) == 0)
         ilog("blocks remaining to index: ${blocks_left}      position in log file: ${pos}", ("blocks_left", _blocks_remaining)("pos",pos));
   }