Struct PresignedRangeDownload 

pub struct PresignedRangeDownload { /* private fields */ }

Provider-neutral presigned range-download implementation.

Implementations

impl PresignedRangeDownload

pub fn new(plan: PresignedRangeDownloadPlan) -> Self

Creates a download protocol from a plan.

pub fn with_url_refresher( self, refresher: Arc<dyn PresignedDownloadUrlRefresher>, ) -> Self

Adds a synchronous URL refresher used when range URL is expired or close to expiry.

pub fn plan(&self) -> Result<PresignedRangeDownloadPlan, MeowError>

Returns a snapshot of the current download plan.

Trait Implementations

impl BreakpointDownload for PresignedRangeDownload

fn total_size_hint(&self, _task: &TransferTask) -> Option<u64>

Returns known remote total size and skips the HEAD prepare request when present.

fn head_url(&self, task: &TransferTask) -> String

Returns full URL for HEAD request.

fn range_url(&self, _task: &TransferTask) -> String

Returns full URL for range GET requests.

fn merge_head_headers(&self, ctx: DownloadHeadCtx<'_>) -> Result<(), MeowError>

Merges protocol-specific headers before sending HEAD request.

fn merge_range_get_headers( &self, ctx: DownloadRangeGetCtx<'_>, ) -> Result<(), MeowError>

Merges protocol-specific headers before range GET request.

fn resume_identity( &self, _task: &TransferTask, ) -> Result<Option<Vec<u8>>, MeowError>

Returns stable, protocol-specific bytes that bind a persisted download checkpoint to the effective range-request representation.

fn supports_parallel_parts(&self) -> bool

Whether this download protocol is safe to fetch out of order, so the executor may run up to max_parts_in_flight range GETs of one file concurrently and write them at absolute offsets.

fn total_size_from_head(&self, headers: &HeaderMap) -> Result<u64, MeowError>

Parses total resource size from successful HEAD response headers.

impl Clone for PresignedRangeDownload

fn clone(&self) -> PresignedRangeDownload

Returns a duplicate of the value.

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

Performs copy-assignment from source.