diff options
| -rw-r--r-- | src/libcore/time.rs | 16 | ||||
| -rw-r--r-- | src/libstd/lib.rs | 1 | ||||
| -rw-r--r-- | src/libstd/time.rs | 3 |
3 files changed, 20 insertions, 0 deletions
diff --git a/src/libcore/time.rs b/src/libcore/time.rs index b12ee0497d2..a751965dffa 100644 --- a/src/libcore/time.rs +++ b/src/libcore/time.rs @@ -23,6 +23,22 @@ const MILLIS_PER_SEC: u64 = 1_000; const MICROS_PER_SEC: u64 = 1_000_000; const MAX_NANOS_F64: f64 = ((u64::MAX as u128 + 1)*(NANOS_PER_SEC as u128)) as f64; +/// The duration of one second. +#[unstable(feature = "duration_constants", issue = "57391")] +pub const SECOND: Duration = Duration::from_secs(1); + +/// The duration of one millisecond. +#[unstable(feature = "duration_constants", issue = "57391")] +pub const MILLISECOND: Duration = Duration::from_millis(1); + +/// The duration of one microsecond. +#[unstable(feature = "duration_constants", issue = "57391")] +pub const MICROSECOND: Duration = Duration::from_micros(1); + +/// The duration of one nanosecond. +#[unstable(feature = "duration_constants", issue = "57391")] +pub const NANOSECOND: Duration = Duration::from_nanos(1); + /// A `Duration` type to represent a span of time, typically used for system /// timeouts. /// diff --git a/src/libstd/lib.rs b/src/libstd/lib.rs index d42e39f16e6..ccfce672e5f 100644 --- a/src/libstd/lib.rs +++ b/src/libstd/lib.rs @@ -248,6 +248,7 @@ #![feature(const_cstr_unchecked)] #![feature(core_intrinsics)] #![feature(dropck_eyepatch)] +#![feature(duration_constants)] #![feature(exact_size_is_empty)] #![feature(external_doc)] #![feature(fixed_size_array)] diff --git a/src/libstd/time.rs b/src/libstd/time.rs index eb67b718dbd..3daad7db2de 100644 --- a/src/libstd/time.rs +++ b/src/libstd/time.rs @@ -21,6 +21,9 @@ use sys_common::FromInner; #[stable(feature = "time", since = "1.3.0")] pub use core::time::Duration; +#[unstable(feature = "duration_constants", issue = "57391")] +pub use core::time::{SECOND, MILLISECOND, MICROSECOND, NANOSECOND}; + /// A measurement of a monotonically nondecreasing clock. /// Opaque and useful only with `Duration`. /// |