Trait qiniu_upload_manager::DataSource

pub trait DataSource<A: Digest>: Debug + Sync + Send {
    fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>;
    fn async_slice(
        &self,
        size: PartSize
    ) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>;
    fn total_size(&self) -> IoResult<Option<u64>>;

    fn source_key(&self) -> IoResult<Option<SourceKey<A>>> { ... }
    fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>> { ... }
    fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>> { ... }
}

数据源接口

提供上传所用的数据源

Required Methods

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

数据源切片

该方法的异步版本为 Self::async_slice。

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

异步数据源切片

fn total_size(&self) -> IoResult<Option<u64>>

获取数据源大小

该方法的异步版本为 Self::async_total_size。

Provided Methods

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

获取数据源 KEY

用于区分不同的数据源

该方法的异步版本为 Self::async_source_key。

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

异步获取数据源 KEY

用于区分不同的数据源

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

异步获取数据源大小

Implementations on Foreign Types

impl<'a, A: Digest, T: 'a + DataSource<A> + ?Sized> DataSource<A> for &'a T where
    &'a T: Debug + Sync + Send, 

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

fn total_size(&self) -> IoResult<Option<u64>>

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

impl<'a, A: Digest, T: 'a + DataSource<A> + ?Sized> DataSource<A> for &'a mut T where
    &'a mut T: Debug + Sync + Send, 

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

fn total_size(&self) -> IoResult<Option<u64>>

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

impl<A: Digest, T: DataSource<A> + ?Sized> DataSource<A> for Box<T> where
    Box<T>: Debug + Sync + Send, 

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

fn total_size(&self) -> IoResult<Option<u64>>

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

impl<A: Digest, T: DataSource<A> + ?Sized> DataSource<A> for Rc<T> where
    Rc<T>: Debug + Sync + Send, 

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

fn total_size(&self) -> IoResult<Option<u64>>

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

impl<A: Digest, T: DataSource<A> + ?Sized> DataSource<A> for Arc<T> where
    Arc<T>: Debug + Sync + Send, 

fn slice(&self, size: PartSize) -> IoResult<Option<DataSourceReader>>

fn async_slice(
    &self,
    size: PartSize
) -> BoxFuture<'_, IoResult<Option<AsyncDataSourceReader>>>

Available on crate feature async only.

fn source_key(&self) -> IoResult<Option<SourceKey<A>>>

fn async_source_key(&self) -> BoxFuture<'_, IoResult<Option<SourceKey<A>>>>

Available on crate feature async only.

fn total_size(&self) -> IoResult<Option<u64>>

fn async_total_size(&self) -> BoxFuture<'_, IoResult<Option<u64>>>

Available on crate feature async only.

Implementors

impl<D: Digest + Send> DataSource<D> for FileDataSource<D>