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Diffstat (limited to 'src/sys/unix/selector/mod.rs')
| -rw-r--r-- | src/sys/unix/selector/mod.rs | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/src/sys/unix/selector/mod.rs b/src/sys/unix/selector/mod.rs index 7525898..b73d645 100644 --- a/src/sys/unix/selector/mod.rs +++ b/src/sys/unix/selector/mod.rs @@ -33,3 +33,13 @@ mod kqueue; target_os = "openbsd" ))] pub(crate) use self::kqueue::{event, Event, Events, Selector}; + +/// Lowest file descriptor used in `Selector::try_clone`. +/// +/// # Notes +/// +/// Usually fds 0, 1 and 2 are standard in, out and error. Some application +/// blindly assume this to be true, which means using any one of those a select +/// could result in some interesting and unexpected errors. Avoid that by using +/// an fd that doesn't have a pre-determined usage. +const LOWEST_FD: libc::c_int = 3; |