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BlockReader

rust_hdf5::format

Trait BlockReader 

Source 
pub trait BlockReader {
    // Required method
    fn read_block(&mut self, offset: u64, len: usize) -> FormatResult<Vec<u8>>;
}
Expand description

Fetches arbitrary file regions for the structure walkers that cannot hold a file handle themselves (fractal heap, v2 B-tree, dense attribute storage).

Required Methods§

Source

fn read_block(&mut self, offset: u64, len: usize) -> FormatResult<Vec<u8>>

Read up to len bytes starting at offset. Returning fewer bytes is only permitted at end of file; every caller re-checks the length it actually needs, so a short read surfaces as BufferTooShort rather than a misparse.

Dyn Compatibility§

This trait is dyn compatible.

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

Implementors§