fcntl-rs

Wrapper around fcntl (2) and convenience methods to make interacting with it easier. Currently only supports commands related to Advisory record locking.

• Documentation
• Crates.io
• Source Code

Usage

Cargo.toml

toml [dependencies] fcntl = "0.1"

```rust use std::fs::OpenOptions; use fcntl::{isfilelocked, lockfile, unlockfile};

// Open file let file = OpenOptions::new().read(true).open("my.lock").unwrap();

// Check whether any process is currently holding a lock match isfilelocked(&file, None) { Ok(true) => println!("File is currently locked"), Ok(false) => println!("File is not locked"), Err(err) => println!("Error: {:?}", err), }

// Attempt to acquire a lock match lock_file(&file, None, Some(FcntlLockType::Write)) { Ok(true) => println!("Lock acquired!"), Ok(false) => println!("Could not acquire lock!"), Err(err) => println!("Error: {:?}", err), }

// Release lock again match unlock_file(&file, None) { Ok(true) => println!("Lock successfully release"), Ok(false) => println!("Failed to release lock"), Err(err) => println!("Error: {:?}", err), } ```

License

MIT OR Apache-2.0