layout.hpp File Reference

#include <fcb/error.hpp>
#include <fcb/span.hpp>
#include <cstdint>

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Classes
struct	fcb::FileLayout
	Byte offsets of each section. More...

Namespaces
namespace	fcb

Functions
bool	fcb::check_magic_bytes (bytes_view b)
	Mirrors fcb_core::check_magic_bytes (src/rust/fcb_core/src/lib.rs:56-58).
std::uint64_t	fcb::rtree_index_size (std::uint64_t num_items, std::uint16_t node_size)
	Mirrors PackedRTree::index_size (packed_rtree/mod.rs:879-898).
FileLayout	fcb::compute_layout (std::uint32_t header_size, std::uint64_t features_count, std::uint16_t index_node_size, std::uint64_t attr_index_size)
	Throws fcb::Error{IllegalHeaderSize} when header_size is out of range or any size arithmetic overflows.
void	fcb::validate_layout_against_size (const FileLayout &l, std::uint64_t total_size)
	Throws unless the computed sections fit inside the resource.

Variables
constexpr std::size_t	fcb::kMagicBytesSize = 8
constexpr std::size_t	fcb::kHeaderSizeSize = 4
constexpr std::size_t	fcb::kHeaderMinBufferSize = 8
constexpr std::size_t	fcb::kHeaderMaxBufferSize = 1024ULL * 1024ULL * 512ULL
constexpr std::uint8_t	fcb::kVersion = 1
constexpr std::size_t	fcb::kNodeItemSize = 40
constexpr std::uint16_t	fcb::kDefaultNodeSize = 16
constexpr std::uint64_t	fcb::kMaxFeatureSize = 256ULL * 1024ULL * 1024ULL
	Hard ceiling on a single feature's byte length, enforced before allocating.