devela::_dep::rustix::io

Function ioctl_fionread

pub fn ioctl_fionread<Fd>(fd: Fd) -> Result<u64, Errno> ⓘ
where
    Fd: AsFd,
Available on crate feature dep_rustix only.
Expand description

ioctl(fd, FIONREAD)—Returns the number of bytes ready to be read.

The result of this function gets silently coerced into a C int by the OS, so it may contain a wrapped value.

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