Buffered Random Access (BRA) provides easy random memory access to a sequential source of data. This is achieved by greedily retaining all memory read from a given source, or by keeping a way to reset the source to the beginning for multiple passes.
GreedyBufReader can be either used as a buffered reader or as
a random memory access descriptor. The amount of data read does
not influence the relative index of the data unless the method
clear is called.
let reader = get_reader(); let mut reader = GreedyBufReader::new(reader); // random access to bytes! let k: u8 = reader.get(12)?; // random slicing! let s: &[u8] = reader.slice(20..48)?; assert_eq!(s.len(), 28); // also functions as a buffered reader let mut chunk = [0; 20]; reader.read_exact(&mut chunk)?;
A buffered reader that greedily retains all memory read into a buffer.