Module resume_data 

Resume Data (.aria2) Serialization System

Provides complete download state persistence using JSON format for cross-restart resumption. This module handles serialization/deserialization of download state including progress, URIs, status, timing, and protocol-specific information.

Architecture

resume_data.rs (this file)
  ├── ResumeData struct - Complete download state
  ├── UriState struct - Per-URI status tracking
  ├── ChecksumInfo struct - Hash verification info
  ├── ResumeDataExt trait - Conversion from/to RequestGroup
  ├── RestoreContext - State container for session restoration
  └── impl ResumeData { serialize, deserialize, save, load }

Integration:
  - Works alongside existing BtProgressManager (BT-specific text format)
  - Uses JSON for human-readable, debuggable output
  - Supports both HTTP/FTP and BitTorrent downloads

Structs

ChecksumInfo

Checksum information for integrity verification

MirrorRestoreInfo

Per-mirror restoration information for Metalink downloads

ResumeData

Complete download state for persistence across process restarts

UriState

Per-URI state tracking for mirror management

Enums

RestoreState

Protocol-specific restore state extracted from ResumeData

Traits

ResumeDataExt

Extension trait for converting between ResumeData and RequestGroup