Function fcntl_setpipe_size

src/backend/linux_raw/pipe/syscalls.rs:114–135

(fd: BorrowedFd<'_>, size: usize)

#[inline]
pub(crate) fn fcntl_setpipe_size(fd: BorrowedFd<'_>, size: usize) -> io::Result<usize> {
    let size: c::c_int = size.try_into().map_err(|_| io::Errno::PERM)?;

    #[cfg(target_pointer_width = "32")]
    unsafe {
        ret_usize(syscall_readonly!(
            __NR_fcntl64,
            fd,
            c_uint(F_SETPIPE_SZ),
            c_int(size)
        ))
    }
    #[cfg(target_pointer_width = "64")]
    unsafe {
        ret_usize(syscall_readonly!(
            __NR_fcntl,
            fd,
            c_uint(F_SETPIPE_SZ),
            c_int(size)
        ))
    }
}