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write_through_async

sz_orm_core

Function write_through_async 

Source 
pub async fn write_through_async<F, Fut>(
    cache: &dyn Cache,
    key: &str,
    value: Vec<u8>,
    ttl: Option<Duration>,
    writer: F,
) -> Result<(), CacheError>
where
    F: FnOnce(&str, Vec<u8>) -> Fut,
    Fut: Future<Output = Result<Vec<u8>, CacheError>>,
Expand description

Write-through（异步版）：同时写入缓存和异步后端存储

写入顺序：先写后端存储，再写缓存。若后端存储写入失败，不写缓存。