Module header 

File and Block Header Definitions

This module defines the header structures used in the VBINSEQ file format.

The VBINSEQ format consists of two primary header types:

1. VBinseqHeader - The file header that appears at the beginning of a VBINSEQ file, containing information about the overall file format and configuration.

2. BlockHeader - Headers that appear before each block of records, containing information specific to that block like its size and number of records.

Both headers are fixed-size and include magic numbers to validate file integrity.

Structs

BlockHeader

Block header for VBINSEQ block data

VBinseqHeader

File header for VBINSEQ files

Constants

BLOCK_SIZE

Default block size in bytes: 128KB

RESERVED_BYTES

Reserved bytes for future use in the file header (16 bytes)

RESERVED_BYTES_BLOCK

Reserved bytes for future use in block headers (12 bytes)

SIZE_BLOCK_HEADER

Size of the block header in bytes (32 bytes)

SIZE_HEADER

Size of the file header in bytes (32 bytes)