inline trivial sleep and sleep_until into task.rs

Author: pchickey

src/task.rs

@@ -0,0 +1,13 @@
+//! Types and Traits for working with asynchronous tasks.
+
+use crate::time::{Duration, Instant, Timer, Wait};
+
+/// Sleeps for the specified amount of time.
+pub fn sleep(dur: Duration) -> Wait {
+    Timer::after(dur).wait()
+}
+
+/// Sleeps until the specified instant.
+pub fn sleep_until(deadline: Instant) -> Wait {
+    Timer::at(deadline).wait()
+}