Enum BTreePageError 

pub enum BTreePageError {
    PageSizeMismatch {
        expected: usize,
        actual: usize,
    },
    PageTooSmall {
        usable_size: usize,
        needed: usize,
    },
    InvalidPageType {
        raw: u8,
    },
    InvalidFragmentedFreeBytes {
        raw: u8,
        max: u8,
    },
    InvalidCellContentAreaStart {
        raw: u16,
        decoded: u32,
        usable_size: usize,
    },
    CellContentAreaOverlapsCellPointers {
        cell_content_start: u32,
        cell_pointer_array_end: usize,
    },
    CellPointerArrayOutOfBounds {
        start: usize,
        len: usize,
        usable_size: usize,
    },
    InvalidCellPointer {
        index: usize,
        offset: u16,
        usable_size: usize,
    },
    InvalidFreeblock {
        offset: u16,
        size: u16,
        usable_size: usize,
    },
    FreeblockLoop {
        offset: u16,
    },
    InvalidRightMostChild {
        raw: u32,
    },
}

Errors that can occur while parsing B-tree page layout structures.

Variants

PageSizeMismatch

Page buffer did not match the expected page size.

Fields

expected: usize

actual: usize

PageTooSmall

Page did not have enough bytes to read the header.

Fields

usable_size: usize

needed: usize

InvalidPageType

Unknown B-tree page type byte.

Fields

raw: u8

InvalidFragmentedFreeBytes

Fragmented free bytes exceeds the maximum allowed.

Fields

raw: u8

max: u8

InvalidCellContentAreaStart

Cell content area start offset was invalid for this page.

Fields

raw: u16

decoded: u32

usable_size: usize

CellContentAreaOverlapsCellPointers

Cell content area begins before the end of the cell pointer array.

Fields

cell_content_start: u32

cell_pointer_array_end: usize

CellPointerArrayOutOfBounds

Cell pointer array extends past the usable page area.

Fields

start: usize

len: usize

usable_size: usize

InvalidCellPointer

A cell pointer was invalid.

Fields

index: usize

offset: u16

usable_size: usize

InvalidFreeblock

Freeblock offset/size was invalid.

Fields

offset: u16

size: u16

usable_size: usize

FreeblockLoop

Freeblock list contained a loop.

Fields

offset: u16

InvalidRightMostChild

Interior page right-most child pointer was invalid.

Fields

raw: u32

Trait Implementations

impl Clone for BTreePageError

fn clone(&self) -> BTreePageError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for BTreePageError

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

Formats the value using the given formatter.

impl Display for BTreePageError

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

Formats the value using the given formatter.

impl Error for BTreePageError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for BTreePageError

fn eq(&self, other: &BTreePageError) -> 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 Eq for BTreePageError

impl StructuralPartialEq for BTreePageError