Struct BucketDescriptorTable 

pub struct BucketDescriptorTable {
    pub summary: Vec<u64>,
    pub non_summary: Vec<u64>,
}

Parsed bucket-descriptor table: two bucket_index -> file byte offset maps, one for summary buckets and one for non-summary buckets. Both are 0-based vectors; the on-disk 1-based bucket_index is converted by the accessor methods.

Fields

summary: Vec<u64>

Byte offsets of summary buckets, 0-based.

non_summary: Vec<u64>

Byte offsets of non-summary buckets, 0-based.

Implementations

impl BucketDescriptorTable

pub fn parse(body: &[u8], sb: &Superblock) -> Result<Self, NsfError>

Parse the descriptor arrays from a decompressed superblock body.

body must be the superblock body after CX decompression (the bytes that follow the 100-byte header, as libnsfdb addresses them). The counts come from the already-parsed Superblock header.

pub fn summary_bucket_offset(&self, bucket_index: u32) -> Result<u64, NsfError>

Byte offset of a summary bucket given its on-disk 1-based bucket_index. Summary buckets hold note summary-item data, which is where note enumeration via the RRV lands.

pub fn non_summary_bucket_offset( &self, bucket_index: u32, ) -> Result<u64, NsfError>

Byte offset of a non-summary bucket given its on-disk 1-based bucket_index.

Trait Implementations

impl Clone for BucketDescriptorTable

fn clone(&self) -> BucketDescriptorTable

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BucketDescriptorTable

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

Formats the value using the given formatter.

impl Eq for BucketDescriptorTable

impl PartialEq for BucketDescriptorTable

fn eq(&self, other: &BucketDescriptorTable) -> 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 BucketDescriptorTable