Struct ExtendedHttpFileDownloader

pub struct ExtendedHttpFileDownloader {
    pub inner: HttpFileDownloader,
    /* private fields */
}

Fields

inner: HttpFileDownloader

Implementations

impl ExtendedHttpFileDownloader

pub fn new( downloader: HttpFileDownloader, downloader_wrapper: Box<dyn DownloaderWrapper>, ) -> Self

pub fn prepare_download(&mut self) -> Result<DownloadFuture, DownloadStartError>

准备下载，返回了用于下载用的 ’static 的 Future

pub fn cancel(&self) -> impl Future<Output = ()> + 'static

取消下载

pub fn is_downloading(&self) -> bool

是否正在下载

pub fn change_connection_count( &self, connection_count: NonZeroU8, ) -> Result<(), ChangeConnectionCountError>

更改连接数

pub fn change_chunk_size( &self, chunk_size: NonZeroUsize, ) -> Result<(), ChangeChunkSizeError>

更改 chunk 大小

pub fn downloaded_len(&self) -> u64

已下载长度

pub fn total_size_future( &self, ) -> impl Future<Output = Option<NonZeroU64>> + 'static

总大小，会等待服务器响应，如果文件无大小则返回 None

pub fn current_total_size(&self) -> Option<NonZeroU64>

总大小，如果文件无大小或者还没有得到服务器响应时返回 None

pub fn atomic_total_size(&self) -> Arc<AtomicU64>

总大小的Arc引用

pub async fn get_chunks(&self) -> Vec<Arc<ChunkItem>>

获取 chunks

pub fn get_file_path(&self) -> PathBuf

获取文件路径

pub fn get_downloading_state(&self) -> Option<Weak<DownloadingState>>

获取 DownloadingState，如果下载没有开始则返回 None

pub fn config(&self) -> &HttpDownloadConfig

配置

pub fn downloaded_len_receiver(&self) -> &Receiver<u64>

已下载长度接收器

pub fn downloading_state_receiver(&mut self) -> Receiver<Arc<DownloadingState>>

DownloadingState 接收器