MPD  0.20.18
Action.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
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8  * (at your option) any later version.
9  *
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12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
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17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
20 #ifndef MPD_UPNP_ACTION_HXX
21 #define MPD_UPNP_ACTION_HXX
22 
23 #include "Compiler.h"
24 
25 #include <upnptools.h>
26 
27 static inline constexpr unsigned
29 {
30  return 0;
31 }
32 
33 template<typename... Args>
34 static inline constexpr unsigned
35 CountNameValuePairs(gcc_unused const char *name, gcc_unused const char *value,
36  Args... args)
37 {
38  return 1 + CountNameValuePairs(args...);
39 }
40 
45 template<typename... Args>
46 static inline IXML_Document *
47 MakeActionHelper(const char *action_name, const char *service_type,
48  Args... args)
49 {
50  const unsigned n = CountNameValuePairs(args...);
51  return UpnpMakeAction(action_name, service_type, n,
52  args...,
53  nullptr, nullptr);
54 }
55 
56 #endif
static constexpr unsigned CountNameValuePairs()
Definition: Action.hxx:28
#define gcc_unused
Definition: Compiler.h:118
static IXML_Document * MakeActionHelper(const char *action_name, const char *service_type, Args... args)
A wrapper for UpnpMakeAction() that counts the number of name/value pairs and adds the nullptr sentin...
Definition: Action.hxx:47
const Partition const char * name
Definition: Count.hxx:34