use channel to send yanked content

vimrc

function! s:send2ssh()
    if has("nvim")
        let ch = sockconnect('tcp', '127.0.0.1:22222')
        if ch == 0
            echomsg "failed to connect 127.0.0.1:22222"
        endif
        call chansend(ch, getreg('"'))
        call chanclose(ch)
    else
        let ch = ch_open('127.0.0.1:22222')
        if ch_status(ch) != "open"
            echomsg "ssh channel is not open, status = " .. ch_status(ch)
        endif
        call ch_sendraw(ch, getreg('"'))
        call ch_close(ch)
    endif
endfunction

augroup pbcopy
    au!
    au TextYankPost * if v:event.operator ==# 'y' | call s:send2net() | endif
augroup END