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## Problem duplicated deps ## Summary of changes little bit of fiddling with deps to reduce duplicates needs consideration: https://github.com/notify-rs/notify/blob/main/CHANGELOG.md#notify-600-2023-05-17
18 lines
564 B
Rust
18 lines
564 B
Rust
use nix::fcntl::{fcntl, OFlag, F_GETFL, F_SETFL};
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use std::os::unix::io::RawFd;
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/// Put a file descriptor into non-blocking mode
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pub fn set_nonblock(fd: RawFd) -> Result<(), std::io::Error> {
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let bits = fcntl(fd, F_GETFL)?;
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// If F_GETFL returns some unknown bits, they should be valid
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// for passing back to F_SETFL, too. If we left them out, the F_SETFL
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// would effectively clear them, which is not what we want.
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let mut flags = OFlag::from_bits_retain(bits);
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flags |= OFlag::O_NONBLOCK;
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fcntl(fd, F_SETFL(flags))?;
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Ok(())
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}
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