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haproxy/include/proto/proto_udp.h

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MEDIUM: protocol: add minimalist UDP protocol client Basic introduction of a UDP layer in HAProxy. It can be used as a client only and manages UDP exchanges with servers. It can't be used to load-balance UDP protocols, but only used by internal features such as DNS resolution.
2015-04-13 21:08:16 +00:00
/*
* include/proto/proto_udp.h
* This file provides functions related to UDP protocol.
*
* Copyright (C) 2014 Baptiste Assmann <bedis9@gmail.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation, version 2.1
* exclusively.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _PROTO_PROTO_UDP_H
#define _PROTO_PROTO_UDP_H
CLEANUP: fix inconsistency between fd->iocb, proto->accept and accept() There's quite some inconsistency in the internal API. listener_accept() which is the main accept() function returns void but is declared as int in the include file. It's assigned to proto->accept() for all stream protocols where an int is expected but the result is never checked (nor is it documented by the way). This proto->accept() is in turn assigned to fd->iocb() which is supposed to return an int composed of FD_WAIT_* flags, but which is never checked either. So let's fix all this mess : - nobody checks accept()'s return - nobody checks iocb()'s return - nobody sets a return value => let's mark all these functions void and keep the current ones intact. Additionally we now include listener.h from listener.c to ensure we won't silently hide this incoherency in the future. Note that this patch could/should be backported to 1.6 and even 1.5 to simplify debugging sessions.
2016-04-14 09:13:20 +00:00
void dgram_fd_handler(int);
MEDIUM: protocol: add minimalist UDP protocol client Basic introduction of a UDP layer in HAProxy. It can be used as a client only and manages UDP exchanges with servers. It can't be used to load-balance UDP protocols, but only used by internal features such as DNS resolution.
2015-04-13 21:08:16 +00:00
#endif // _PROTO_PROTO_UDP_H