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DownloadState

dig_download::progress

Struct DownloadState 

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pub struct DownloadState {
    pub key: String,
    pub total_length: u64,
    pub chunk_lens: Vec<u64>,
    pub root: Option<String>,
    pub inclusion_proof: Option<String>,
    pub done_ranges: BTreeSet<usize>,
}
Expand description

Durable resume state for one download: the resource commitment metadata + the set of ranges already completed + verified. Serialized to a StateStore so a paused OR crashed download resumes without re-fetching a verified range.

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§key: String

The download key (a stable id for this content target — see crate::orchestrator::download_key).

§total_length: u64

Total resource ciphertext length (once the commitment is established; 0 before).

§chunk_lens: Vec<u64>

The per-chunk lengths (the commitment’s chunk_lens), so a resume re-plans identically.

§root: Option<String>

The chain-anchored generation root (64-hex), if known.

§inclusion_proof: Option<String>

The whole-resource inclusion proof (base64), if known.

§done_ranges: BTreeSet<usize>

Range indices already completed + verified (never re-fetched on resume).

Implementations§

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impl DownloadState

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pub fn new(key: impl Into<String>) -> Self

A fresh, empty state for key (nothing planned or done yet).

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pub fn has_commitment(&self) -> bool

Whether the resource commitment has been established (chunk layout known).

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pub fn mark_done(&mut self, index: usize)

Mark range index complete.

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pub fn is_done(&self, index: usize) -> bool

Whether range index is already complete (and must not be re-fetched).

Trait Implementations§

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impl Clone for DownloadState

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fn clone(&self) -> DownloadState

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

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

Performs copy-assignment from source. Read more
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impl Debug for DownloadState

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

Formats the value using the given formatter. Read more
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impl<'de> Deserialize<'de> for DownloadState

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for DownloadState

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impl PartialEq for DownloadState

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

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

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

Inequality operator !=. Read more
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impl Serialize for DownloadState

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fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>
where __S: Serializer,

Serialize this value into the given Serde serializer. Read more
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impl StructuralPartialEq for DownloadState

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