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Store

modelvault_core::storage

Trait Store 

Source 
pub trait Store {
    // Required methods
    fn len(&self) -> Result<u64, DbError>;
    fn read_exact_at(
        &mut self,
        offset: u64,
        buf: &mut [u8],
    ) -> Result<(), DbError>;
    fn write_all_at(&mut self, offset: u64, buf: &[u8]) -> Result<(), DbError>;
    fn sync(&mut self) -> Result<(), DbError>;
    fn truncate(&mut self, len: u64) -> Result<(), DbError>;

    // Provided method
    fn is_empty(&self) -> Result<bool, DbError> { ... }
}
Expand description

Random-access byte image of a ModelVault database (length, read, write, sync).

Implemented by FileStore (real files) and VecStore (in-memory snapshots). A future read-only store split is deferred until a second consumer needs a smaller surface.

Required Methods§

Source

fn len(&self) -> Result<u64, DbError>

Source

fn read_exact_at(&mut self, offset: u64, buf: &mut [u8]) -> Result<(), DbError>

Source

fn write_all_at(&mut self, offset: u64, buf: &[u8]) -> Result<(), DbError>

Source

fn sync(&mut self) -> Result<(), DbError>

Source

fn truncate(&mut self, len: u64) -> Result<(), DbError>

Shrink or grow the logical file to len bytes (used for crash recovery truncation).

Provided Methods§

Source

fn is_empty(&self) -> Result<bool, DbError>

Dyn Compatibility§

This trait is dyn compatible.

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

Implementors§