HeaderManager

sqlitegraph::backend::native::graph_file::header

Struct HeaderManager 

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pub struct HeaderManager;
Expand description

Header management utilities for GraphFile

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impl HeaderManager

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pub fn initialize_v2_header( header: &mut PersistentHeaderV2, node_count: u64, default_node_data_start: u64, reserved_node_region_bytes: u64, ) -> NativeResult<()>

Initialize V2 header with proper cluster offset configuration

Sets up the header with magic bytes, version, and calculates proper offsets for nodes, edges, and clusters to prevent corruption.

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pub fn validate_header_invariants( header: &PersistentHeaderV2, ) -> NativeResult<()>

Validate header invariants and constraints

Ensures the header configuration maintains all critical invariants for safe file operations.

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pub fn get_header_statistics( header: &PersistentHeaderV2, reserved_node_region_bytes: u64, ) -> HeaderStatistics

Get header statistics for debugging

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pub fn get_node_statistics( header: &PersistentHeaderV2, ) -> NativeResult<ClusterUtilization>

Get node statistics from persistent header

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pub fn get_edge_statistics( header: &PersistentHeaderV2, ) -> NativeResult<ClusterUtilization>

Get edge statistics from persistent header

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