| //! Implementation of an atomic `u64` cell. On 64 bit platforms, this is a |
| //! re-export of `AtomicU64`. On 32 bit platforms, this is implemented using a |
| //! `Mutex`. |
| |
| // `AtomicU64` can only be used on targets with `target_has_atomic` is 64 or greater. |
| // Once `cfg_target_has_atomic` feature is stable, we can replace it with |
| // `#[cfg(target_has_atomic = "64")]`. |
| // Refs: https://github.com/rust-lang/rust/tree/master/src/librustc_target |
| cfg_has_atomic_u64! { |
| #[path = "atomic_u64_native.rs"] |
| mod imp; |
| } |
| |
| cfg_not_has_atomic_u64! { |
| #[path = "atomic_u64_as_mutex.rs"] |
| mod imp; |
| } |
| |
| pub(crate) use imp::{AtomicU64, StaticAtomicU64}; |