pub struct DownloadQueue { /* private fields */ }Expand description
A bounded FCFS scheduler in front of a Downloader: submit as many downloads
as you like; at most max_active run concurrently and the rest wait their turn in arrival order.
Implementations§
Source§impl DownloadQueue
impl DownloadQueue
Sourcepub fn new(downloader: Arc<Downloader>, max_active: usize) -> Arc<Self> ⓘ
pub fn new(downloader: Arc<Downloader>, max_active: usize) -> Arc<Self> ⓘ
Build a queue over downloader that runs at most max_active downloads at once (clamped to at
least 1). Spawns max_active worker tasks that drain submissions FCFS for the queue’s lifetime.
Sourcepub fn with_defaults(downloader: Arc<Downloader>) -> Arc<Self> ⓘ
pub fn with_defaults(downloader: Arc<Downloader>) -> Arc<Self> ⓘ
Build a queue with the default active cap (DEFAULT_MAX_ACTIVE_DOWNLOADS).
Sourcepub fn max_active(&self) -> usize
pub fn max_active(&self) -> usize
The configured maximum number of concurrently-active downloads.
Sourcepub fn submit(
&self,
content: ContentId,
sink: Arc<dyn Sink>,
opts: DownloadOptions,
) -> QueuedHandle
pub fn submit( &self, content: ContentId, sink: Arc<dyn Sink>, opts: DownloadOptions, ) -> QueuedHandle
Enqueue a download. Returns immediately with a QueuedHandle; the transfer starts as soon as
a worker slot is free (immediately if under the active cap), in submission order.
Auto Trait Implementations§
impl Freeze for DownloadQueue
impl RefUnwindSafe for DownloadQueue
impl Send for DownloadQueue
impl Sync for DownloadQueue
impl Unpin for DownloadQueue
impl UnsafeUnpin for DownloadQueue
impl UnwindSafe for DownloadQueue
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