Trait Vfs

Source

pub trait Vfs: Send + Sync {
    type Handle: VfsHandle;

Show 16 methods    // Required methods
    fn register_logger(&self, logger: SqliteLogger);
    fn open(
        &self,
        path: Option<&str>,
        opts: OpenOpts,
    ) -> VfsResult<Self::Handle>;
    fn delete(&self, path: &str) -> VfsResult<()>;
    fn access(&self, path: &str, flags: AccessFlags) -> VfsResult<bool>;
    fn file_size(&self, handle: &mut Self::Handle) -> VfsResult<usize>;
    fn truncate(&self, handle: &mut Self::Handle, size: usize) -> VfsResult<()>;
    fn write(
        &self,
        handle: &mut Self::Handle,
        offset: usize,
        data: &[u8],
    ) -> VfsResult<usize>;
    fn read(
        &self,
        handle: &mut Self::Handle,
        offset: usize,
        data: &mut [u8],
    ) -> VfsResult<usize>;
    fn close(&self, handle: Self::Handle) -> VfsResult<()>;

    // Provided methods
    fn canonical_path<'a>(&self, path: Cow<'a, str>) -> VfsResult<Cow<'a, str>> { ... }
    fn lock(&self, handle: &mut Self::Handle, level: LockLevel) -> VfsResult<()> { ... }
    fn unlock(
        &self,
        handle: &mut Self::Handle,
        level: LockLevel,
    ) -> VfsResult<()> { ... }
    fn sync(&self, handle: &mut Self::Handle) -> VfsResult<()> { ... }
    fn pragma(
        &self,
        handle: &mut Self::Handle,
        pragma: Pragma<'_>,
    ) -> Result<Option<String>, PragmaErr> { ... }
    fn sector_size(&self) -> i32 { ... }
    fn device_characteristics(&self) -> i32 { ... }
}