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author | bors[bot] <26634292+bors[bot]@users.noreply.github.com> | 2021-09-04 18:25:41 +0000 |
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committer | GitHub <noreply@github.com> | 2021-09-04 18:25:41 +0000 |
commit | 5465167a7b56d8caeb4a44002eb108fadbfd49cb (patch) | |
tree | 3693b52af91034b1762205926ba8b00f06d4b685 /src/sys/select.rs | |
parent | 39c63662ed910763b0ccc02473121f12517d1f42 (diff) | |
parent | a757be75fcdda80d9c441db35fdfedb402714223 (diff) | |
download | nix-5465167a7b56d8caeb4a44002eb108fadbfd49cb.zip |
Merge #1511
1511: Document more things r=asomers a=asomers
Also, test rustdoc in CI, and demote missing_docs from a deny to a
warning (but still deny it in CI).
Co-authored-by: Alan Somers <asomers@gmail.com>
Diffstat (limited to 'src/sys/select.rs')
-rw-r--r-- | src/sys/select.rs | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/src/sys/select.rs b/src/sys/select.rs index a8035f79..0a0e830d 100644 --- a/src/sys/select.rs +++ b/src/sys/select.rs @@ -1,3 +1,4 @@ +//! Portably monitor a group of file descriptors for readiness. use std::iter::FusedIterator; use std::mem; use std::ops::Range; @@ -11,11 +12,13 @@ use crate::sys::time::{TimeSpec, TimeVal}; pub use libc::FD_SETSIZE; +/// Contains a set of file descriptors used by [`select`] #[repr(transparent)] #[derive(Clone, Copy, Debug, Eq, Hash, PartialEq)] pub struct FdSet(libc::fd_set); impl FdSet { + /// Create an empty `FdSet` pub fn new() -> FdSet { let mut fdset = mem::MaybeUninit::uninit(); unsafe { @@ -24,18 +27,22 @@ impl FdSet { } } + /// Add a file descriptor to an `FdSet` pub fn insert(&mut self, fd: RawFd) { unsafe { libc::FD_SET(fd, &mut self.0) }; } + /// Remove a file descriptor from an `FdSet` pub fn remove(&mut self, fd: RawFd) { unsafe { libc::FD_CLR(fd, &mut self.0) }; } + /// Test an `FdSet` for the presence of a certain file descriptor. pub fn contains(&self, fd: RawFd) -> bool { unsafe { libc::FD_ISSET(fd, &self.0) } } + /// Remove all file descriptors from this `FdSet`. pub fn clear(&mut self) { unsafe { libc::FD_ZERO(&mut self.0) }; } |