Local-file adapter. More...

#include <fcb/range_reader.hpp>

Inheritance diagram for fcb::FileRangeReader:

Public Member Functions
	FileRangeReader (const std::string &path)

std::uint64_t	total_size () override
	Total byte length of the resource.

std::vector< std::uint8_t >	read (std::uint64_t offset, std::uint64_t length) override
	Read `length` bytes at `offset`, subject to the contract above.

Public Member Functions inherited from fcb::RangeReader
virtual	~RangeReader ()=default

virtual void	read_batch (std::vector< RangeRequest > &requests)
	Fill every request, preserving order.

Detailed Description

Local-file adapter.

Definition at line 72 of file range_reader.hpp.

Constructor & Destructor Documentation

◆ FileRangeReader()

fcb::FileRangeReader::FileRangeReader ( const std::string & path )

explicit

Definition at line 17 of file range_reader.cpp.

References fcb::IoError.

Member Function Documentation

◆ read()

std::vector< std::uint8_t > fcb::FileRangeReader::read	(	std::uint64_t	offset,
		std::uint64_t	length
	)

overridevirtual

Read length bytes at offset, subject to the contract above.

Implements fcb::RangeReader.

Definition at line 27 of file range_reader.cpp.

References fcb::IoError, and offset.

◆ total_size()

std::uint64_t fcb::FileRangeReader::total_size ( )

overridevirtual

Total byte length of the resource.

This is a REQUIRED bounds/security contract, not a convenience: every computed section offset and range request is validated against it, so a corrupt header cannot make the core read or allocate out of bounds. (It is NOT needed to size the last feature – every feature carries its own 4-byte size prefix.)