Struct DownloadWorker 

pub struct DownloadWorker {
    client: Client,
    max_retries: u32,
}

Download worker that handles individual download tasks

Fields

client: Client

HTTP client for downloads

max_retries: u32

Maximum retry attempts

Implementations

impl DownloadWorker

pub fn new() -> Self

pub async fn download<F>( &self, task: &DownloadTask, stop: &AtomicBool, on_progress: F, ) -> Result<DownloadResult, DownloadError>

where F: Fn(u64, Option<u64>) + Send + Sync,

Download a file with retry logic and progress tracking.

stop is the pause/cancel flag (see crate::download::stop). It is checked between chunks and again between retries, so a paused download stops promptly rather than after its next backoff — up to 45 seconds away, which reads as the pause having done nothing.

TRACES: UR-055 | DR-168

async fn try_download<F>( &self, task: &DownloadTask, stop: &AtomicBool, on_progress: &F, ) -> Result<DownloadResult, DownloadError>

where F: Fn(u64, Option<u64>) + Send + Sync,

Attempt a single download

fn exponential_backoff(retry_count: u32) -> Duration

Calculate exponential backoff delay