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Clarify difference between unix/windows behaviour

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Updated to specify the underlying syscalls
This commit is contained in:
James Wright 2020-12-23 00:07:48 +00:00
parent 1700ca07c6
commit 8a85a85cea
1 changed files with 8 additions and 0 deletions
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8
library/std/src/thread/mod.rs
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@ -775,6 +775,14 @@ pub fn sleep_ms(ms: u32) {
/// Platforms which do not support nanosecond precision for sleeping will
/// have `dur` rounded up to the nearest granularity of time they can sleep for.
///
/// Currently, specifying a zero duration on Unix platforms returns immediately
/// without invoking the underlying [`nanosleep`] syscall, whereas on Windows
/// platforms the underlying [`Sleep`] syscall is always invoked.
/// If the intention is to yield the current time-slice you may want to use
/// [`yield_now`] instead.
/// [`nanosleep`]: https://linux.die.net/man/2/nanosleep
/// [`Sleep`]: https://docs.microsoft.com/en-us/windows/win32/api/synchapi/nf-synchapi-sleep
///
/// # Examples
///
/// ```no_run