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// vim: tw=80

//!  A library of [`Futures`]-aware locking primitives.  These locks can safely be
//!  used in asynchronous environments like [`Tokio`].  When they block, they'll
//!  only block a single task, not the entire reactor.
//!
//! [`Futures`]: https://github.com/rust-lang-nursery/futures-rs
//! [`Tokio`]: https:/tokio.rs

extern crate futures;

mod mutex;
mod rwlock;

pub use mutex::{Mutex, MutexFut, MutexGuard};
pub use rwlock::{RwLock, RwLockReadFut, RwLockWriteFut,
                 RwLockReadGuard, RwLockWriteGuard};

use futures::sync::oneshot;

/// Poll state of all Futures in this crate.
enum FutState {
    New,
    Pending(oneshot::Receiver<()>),
    Acquired
}