Struct PhysicalFileHeader 

pub struct PhysicalFileHeader {

    pub format_version: u32,
    pub sequence: u64,
    pub manifest_oldest_root: u64,
    pub manifest_root: u64,
    pub free_set_root: u64,
    pub manifest_page: u32,
    pub manifest_checksum: u64,
    pub collection_roots_page: u32,
    pub collection_roots_checksum: u64,
    pub collection_root_count: u32,
    pub snapshot_count: u32,
    pub index_count: u32,
    pub catalog_collection_count: u32,
    pub catalog_total_entities: u64,
    pub export_count: u32,
    pub graph_projection_count: u32,
    pub analytics_job_count: u32,
    pub manifest_event_count: u32,
    pub registry_page: u32,
    pub registry_checksum: u64,
    pub recovery_page: u32,
    pub recovery_checksum: u64,
    pub catalog_page: u32,
    pub catalog_checksum: u64,
    pub metadata_state_page: u32,
    pub metadata_state_checksum: u64,
    pub vector_artifact_page: u32,
    pub vector_artifact_checksum: u64,
}

Minimal physical state mirrored into page 0 for paged databases.

The pager owns when this is read and written, but the field layout is a durable file compatibility contract.

Fields

format_version: u32

sequence: u64

manifest_oldest_root: u64

manifest_root: u64

free_set_root: u64

manifest_page: u32

manifest_checksum: u64

collection_roots_page: u32

collection_roots_checksum: u64

collection_root_count: u32

snapshot_count: u32

index_count: u32

catalog_collection_count: u32

catalog_total_entities: u64

export_count: u32

graph_projection_count: u32

analytics_job_count: u32

manifest_event_count: u32

registry_page: u32

registry_checksum: u64

recovery_page: u32

recovery_checksum: u64

catalog_page: u32

catalog_checksum: u64

metadata_state_page: u32

metadata_state_checksum: u64

vector_artifact_page: u32

vector_artifact_checksum: u64

Trait Implementations

impl Clone for PhysicalFileHeader

fn clone(&self) -> PhysicalFileHeader

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for PhysicalFileHeader

impl Debug for PhysicalFileHeader

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PhysicalFileHeader

fn default() -> PhysicalFileHeader

Returns the “default value” for a type.

impl Eq for PhysicalFileHeader

impl PartialEq for PhysicalFileHeader

fn eq(&self, other: &PhysicalFileHeader) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for PhysicalFileHeader