Trait external_storage::ExternalStorage

pub trait ExternalStorage: 'static + Send + Sync {
    fn name(&self) -> &'static str;
    fn url(&self) -> Result<Url>;
    fn write(
        &self, 
        name: &str, 
        reader: Box<dyn AsyncRead + Send + Unpin>, 
        content_length: u64
    ) -> Result<()>;
    fn read(&self, name: &str) -> Box<dyn AsyncRead + Unpin>;

    fn restore(
        &self, 
        storage_name: &str, 
        restore_name: PathBuf, 
        expected_length: u64, 
        speed_limiter: &Limiter
    ) -> Result<()> { ... }
}

An abstraction of an external storage.

Required methods

fn name(&self) -> &'static str

fn url(&self) -> Result<Url>

fn write(
    &self,
    name: &str,
    reader: Box<dyn AsyncRead + Send + Unpin>,
    content_length: u64
) -> Result<()>

Write all contents of the read to the given path.

fn read(&self, name: &str) -> Box<dyn AsyncRead + Unpin>

Read all contents of the given path.

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Provided methods

fn restore(
    &self,
    storage_name: &str,
    restore_name: PathBuf,
    expected_length: u64,
    speed_limiter: &Limiter
) -> Result<()>

Read from external storage and restore to the given path

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Implementations on Foreign Types

impl ExternalStorage for Arc<dyn ExternalStorage>

fn name(&self) -> &'static str

fn url(&self) -> Result<Url>

fn write(
    &self,
    name: &str,
    reader: Box<dyn AsyncRead + Send + Unpin>,
    content_length: u64
) -> Result<()>

fn read(&self, name: &str) -> Box<dyn AsyncRead + Unpin>

impl ExternalStorage for Box<dyn ExternalStorage>

fn name(&self) -> &'static str

fn url(&self) -> Result<Url>

fn write(
    &self,
    name: &str,
    reader: Box<dyn AsyncRead + Send + Unpin>,
    content_length: u64
) -> Result<()>

fn read(&self, name: &str) -> Box<dyn AsyncRead + Unpin>

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Implementors

impl ExternalStorage for LocalStorage

fn name(&self) -> &'static str

fn url(&self) -> Result<Url>

fn write(
    &self,
    name: &str,
    reader: Box<dyn AsyncRead + Send + Unpin>,
    _content_length: u64
) -> Result<()>

fn read(&self, name: &str) -> Box<dyn AsyncRead + Unpin>

impl ExternalStorage for NoopStorage

fn name(&self) -> &'static str

fn url(&self) -> Result<Url>

fn write(
    &self,
    _name: &str,
    reader: Box<dyn AsyncRead + Send + Unpin>,
    _content_length: u64
) -> Result<()>

fn read(&self, _name: &str) -> Box<dyn AsyncRead + Unpin>

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