xref: /freebsd/contrib/libevent/include/event2/rpc_compat.h (revision dc318a4ffabcbfa23bb56a33403aad36e6de30af)
1 /*
2  * Copyright (c) 2006-2007 Niels Provos <provos@citi.umich.edu>
3  * Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  *    derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26  */
27 #ifndef EVENT2_RPC_COMPAT_H_INCLUDED_
28 #define EVENT2_RPC_COMPAT_H_INCLUDED_
29 
30 /** @file event2/rpc_compat.h
31 
32   Deprecated versions of the functions in rpc.h: provided only for
33   backwards compatibility.
34 
35  */
36 
37 #ifdef __cplusplus
38 extern "C" {
39 #endif
40 
41 /** backwards compatible accessors that work only with gcc */
42 #if defined(__GNUC__) && !defined(__STRICT_ANSI__)
43 
44 #undef EVTAG_ASSIGN
45 #undef EVTAG_GET
46 #undef EVTAG_ADD
47 
48 #define EVTAG_ASSIGN(msg, member, args...) \
49 	(*(msg)->base->member##_assign)(msg, ## args)
50 #define EVTAG_GET(msg, member, args...) \
51 	(*(msg)->base->member##_get)(msg, ## args)
52 #define EVTAG_ADD(msg, member, args...) \
53 	(*(msg)->base->member##_add)(msg, ## args)
54 #endif
55 #define EVTAG_LEN(msg, member) ((msg)->member##_length)
56 
57 #ifdef __cplusplus
58 }
59 #endif
60 
61 #endif /* EVENT2_EVENT_COMPAT_H_INCLUDED_ */
62