[tarantool-patches] Re: [PATCH v2 2/3] console: do not use netbox for console text connections
Konstantin Osipov
kostja at tarantool.org
Thu Mar 29 16:03:56 MSK 2018
* Vladislav Shpilevoy <v.shpilevoy at tarantool.org> [18/03/28 16:50]:
You mentioned you were going to get rid of the read() to detect
sigpipe, and investigate sigpipe problem more thoroughly.
Please do.
> + write = function(self, text)
> + -- It is the hack to protect from SIGPIPE, which is
> + -- not ignored under debugger (gdb, lldb) on send in
> + -- a socket, that is actually closed. If a socket is
> + -- readable and read() returns nothing then the socket
> + -- is closed, and writing into it will raise SIGPIPE.
> + if self._socket:readable(0) then
> + local rc = self._socket:read({chunk = 1})
> + if not rc or rc == '' then
> + return nil
> + else
> + assert(#rc == 1)
> + -- Make the char be unread.
> + self._socket.rbuf.wpos = self._socket.rbuf.wpos - 1
> + end
> + end
> + return self._socket:write(text)
--
Konstantin Osipov, Moscow, Russia, +7 903 626 22 32
http://tarantool.io - www.twitter.com/kostja_osipov
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