[−][src]Crate file_seq
Fail-safe file sequence
Works by versioning values of sequences and throwing away all versions, but the current and the previous one.
Inspired by this Java implementation
Usage
use file_seq::FileSeq; use std::path::Path; let dir = Path::new("/tmp/example"); let initial_value = 1; let seq = FileSeq::new(&dir, initial_value).unwrap(); // Get current value assert_eq!(initial_value, seq.value().unwrap()); // Increment and get assert_eq!(initial_value + 1, seq.increment_and_get(1).unwrap()); // Get and then increment assert_eq!(initial_value + 1, seq.get_and_increment(1).unwrap()); assert_eq!(initial_value + 2, seq.value().unwrap());
Structs
FileSeq |