Trait kip_db::kernel::Storage

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pub trait Storage: Send + Sync + 'static + Sized {
    // Required methods
    fn name() -> &'static str
       where Self: Sized;
    fn open<'async_trait>(
        path: impl 'async_trait + Into<PathBuf> + Send
    ) -> Pin<Box<dyn Future<Output = KernelResult<Self>> + Send + 'async_trait>>
       where Self: 'async_trait;
    fn flush<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn set<'life0, 'async_trait>(
        &'life0 self,
        key: Bytes,
        value: Bytes
    ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn get<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 [u8]
    ) -> Pin<Box<dyn Future<Output = KernelResult<Option<Bytes>>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn remove<'life0, 'life1, 'async_trait>(
        &'life0 self,
        key: &'life1 [u8]
    ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait,
             'life1: 'async_trait;
    fn size_of_disk<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = KernelResult<u64>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn len<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = KernelResult<usize>> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
    fn is_empty<'life0, 'async_trait>(
        &'life0 self
    ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
       where Self: 'async_trait,
             'life0: 'async_trait;
}
Expand description

KV持久化内核 操作定义

Required Methods§

source

fn name() -> &'static str
where Self: Sized,

获取内核名

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fn open<'async_trait>( path: impl 'async_trait + Into<PathBuf> + Send ) -> Pin<Box<dyn Future<Output = KernelResult<Self>> + Send + 'async_trait>>
where Self: 'async_trait,

通过数据目录路径开启数据库

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fn flush<'life0, 'async_trait>( &'life0 self ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

强制将数据刷入硬盘

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fn set<'life0, 'async_trait>( &'life0 self, key: Bytes, value: Bytes ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

设置键值对

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fn get<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8] ) -> Pin<Box<dyn Future<Output = KernelResult<Option<Bytes>>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

通过键获取对应的值

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fn remove<'life0, 'life1, 'async_trait>( &'life0 self, key: &'life1 [u8] ) -> Pin<Box<dyn Future<Output = KernelResult<()>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

通过键删除键值对

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fn size_of_disk<'life0, 'async_trait>( &'life0 self ) -> Pin<Box<dyn Future<Output = KernelResult<u64>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

source

fn len<'life0, 'async_trait>( &'life0 self ) -> Pin<Box<dyn Future<Output = KernelResult<usize>> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

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fn is_empty<'life0, 'async_trait>( &'life0 self ) -> Pin<Box<dyn Future<Output = bool> + Send + 'async_trait>>
where Self: 'async_trait, 'life0: 'async_trait,

Object Safety§

This trait is not object safe.

Implementors§