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StorageBackend

Trait StorageBackend 

Source
pub trait StorageBackend: Send + Sync {
    // Required methods
    fn get_narinfo<'life0, 'life1, 'async_trait>(
        &'life0 self,
        hash: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<Option<String>, CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn put_narinfo<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        hash: &'life1 str,
        content: &'life2 str,
    ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait;
    fn get_nar<'life0, 'life1, 'async_trait>(
        &'life0 self,
        path: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn put_nar<'life0, 'life1, 'life2, 'async_trait>(
        &'life0 self,
        path: &'life1 str,
        data: &'life2 [u8],
    ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait,
             'life2: 'async_trait;
    fn delete<'life0, 'life1, 'async_trait>(
        &'life0 self,
        hash: &'life1 str,
    ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn list_narinfos<'life0, 'async_trait>(
        &'life0 self,
    ) -> Pin<Box<dyn Future<Output = Result<Vec<String>, CacheError>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

Abstraction over binary cache storage.

Narinfo files are keyed by the 32-character store path hash. NAR blobs are keyed by their relative URL path (e.g. nar/<hash>.nar.xz).

Required Methods§

Source

fn get_narinfo<'life0, 'life1, 'async_trait>( &'life0 self, hash: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<String>, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieve narinfo text by store path hash.

Source

fn put_narinfo<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, hash: &'life1 str, content: &'life2 str, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Store narinfo text keyed by store path hash.

Source

fn get_nar<'life0, 'life1, 'async_trait>( &'life0 self, path: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<Option<Vec<u8>>, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Retrieve a NAR blob by its relative path.

Source

fn put_nar<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, path: &'life1 str, data: &'life2 [u8], ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Store a NAR blob at the given relative path.

Source

fn delete<'life0, 'life1, 'async_trait>( &'life0 self, hash: &'life1 str, ) -> Pin<Box<dyn Future<Output = Result<(), CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Delete a store path’s narinfo and associated NAR blob.

Source

fn list_narinfos<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = Result<Vec<String>, CacheError>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

List all stored narinfo hashes.

Dyn Compatibility§

This trait is dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety".

Implementors§