Trait VfsFile

Source

pub trait VfsFile: Debug {
    // Required methods
    fn readonly(&self) -> bool;
    fn in_memory(&self) -> bool;
    fn lock(&mut self, level: LockLevel) -> Result<(), ErrCtx>;
    fn unlock(&mut self, level: LockLevel) -> Result<(), ErrCtx>;
    fn file_size(&mut self) -> Result<usize, ErrCtx>;
    fn truncate(&mut self, size: usize) -> Result<(), ErrCtx>;
    fn write(&mut self, offset: usize, data: &[u8]) -> Result<usize, ErrCtx>;
    fn read(&mut self, offset: usize, data: &mut [u8]) -> Result<usize, ErrCtx>;
}