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//! Miscellaneous tools for concurrent programming.
//!
//! ## Atomics
//!
//! * [`AtomicCell`], a thread-safe mutable memory location.
//! * [`AtomicConsume`], for reading from primitive atomic types with "consume" ordering.
//!
//! ## Thread synchronization
//!
//! * [`Parker`], a thread parking primitive.
//! * [`ShardedLock`], a sharded reader-writer lock with fast concurrent reads.
//! * [`WaitGroup`], for synchronizing the beginning or end of some computation.
//!
//! ## Utilities
//!
//! * [`Backoff`], for exponential backoff in spin loops.
//! * [`CachePadded`], for padding and aligning a value to the length of a cache line.
//! * [`scope`], for spawning threads that borrow local variables from the stack.
//!
//! [`AtomicCell`]: atomic/struct.AtomicCell.html
//! [`AtomicConsume`]: atomic/trait.AtomicConsume.html
//! [`Parker`]: sync/struct.Parker.html
//! [`ShardedLock`]: sync/struct.ShardedLock.html
//! [`WaitGroup`]: sync/struct.WaitGroup.html
//! [`Backoff`]: struct.Backoff.html
//! [`CachePadded`]: struct.CachePadded.html
//! [`scope`]: thread/fn.scope.html
#![warn(missing_docs)]
#![warn(missing_debug_implementations)]
#![cfg_attr(not(feature = "std"), no_std)]
#![cfg_attr(feature = "nightly", feature(cfg_target_has_atomic))]
#[macro_use]
extern crate cfg_if;
#[cfg(feature = "std")]
extern crate core;
cfg_if! {
if #[cfg(feature = "alloc")] {
extern crate alloc;
} else if #[cfg(feature = "std")] {
extern crate std as alloc;
}
}
#[cfg_attr(feature = "nightly", cfg(target_has_atomic = "ptr"))]
pub mod atomic;
mod cache_padded;
pub use cache_padded::CachePadded;
mod backoff;
pub use backoff::Backoff;
cfg_if! {
if #[cfg(feature = "std")] {
#[macro_use]
extern crate lazy_static;
pub mod sync;
pub mod thread;
}
}
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