Struct PartPlan 

pub struct PartPlan { /* private fields */ }

Validated part geometry for one multi-part upload.

Implementations

impl PartPlan

pub fn new( total: u64, part_size: u64, max_parts: u32, ) -> Result<Self, PartError>

Validate the geometry of a total-byte pack split into part_size parts.

Errors

PartError::PartSizeNotPowerOfTwo, PartError::PartSizeTooSmall, PartError::NotMultipart when total <= part_size, and PartError::TooManyParts when more than max_parts parts are needed.

pub fn count(&self) -> u32

Number of parts.

pub fn part_size(&self) -> u64

Size of every part but the last.

pub fn total(&self) -> u64

Pack byte count.

pub fn offset(&self, index: u32) -> Result<u64, PartError>

Byte offset of part index in the pack: index × part_size.

Errors

PartError::IndexOutOfRange for index >= count().

pub fn expected_len(&self, index: u32) -> Result<u64, PartError>

Byte count of part index: part_size, or the non-empty remainder for the last part.

Errors

PartError::IndexOutOfRange for index >= count().

pub fn check(&self, commitment: &PartCommitment) -> Result<(), PartError>

Check a part: commitment against this plan (SPEC-TRANSPORT-CONNECT §7.6): the index is in range, and the length is part_size for every part but the last, and the remainder for the last.

Errors

PartError::IndexOutOfRange or PartError::LengthMismatch.

Trait Implementations

impl Clone for PartPlan

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for PartPlan

impl Debug for PartPlan

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

Formats the value using the given formatter.

impl Eq for PartPlan

impl PartialEq for PartPlan

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for PartPlan