INNER CODE UNIT · Rust

exclusive_lock

c3rb3ru5d3d53c/binlex · crates/libvex/libvex-rs/src/lib.rs:274

    fn exclusive_lock(&self) -> Result<LiftGuard<'_>, LockError> {
        let guard = self.0.lock();
        if *guard.borrow() != 0 {
            return Err(LockError::AlreadyAllocated);
        }
        *guard.borrow_mut() = 1;
        Ok(LiftGuard(guard))
    }

    fn lock(&self) -> LiftGuard<'_> {
        let guard = self.0.lock();
        *guard.borrow_mut() += 1;
        LiftGuard(guard)
    }
}

struct LiftGuard<'a>(ReentrantMutexGuard<'a, RefCell<u8>>);

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