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/*
* Copyright 2003-2017 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_UPNP_ACTION_HXX
#define MPD_UPNP_ACTION_HXX
#include "Compiler.h"
#include <upnptools.h>
static inline constexpr unsigned
CountNameValuePairs()
{
return 0;
}
template<typename... Args>
static inline constexpr unsigned
CountNameValuePairs(gcc_unused const char *name, gcc_unused const char *value,
Args... args)
{
return 1 + CountNameValuePairs(args...);
}
/**
* A wrapper for UpnpMakeAction() that counts the number of name/value
* pairs and adds the nullptr sentinel.
*/
template<typename... Args>
static inline IXML_Document *
MakeActionHelper(const char *action_name, const char *service_type,
Args... args)
{
const unsigned n = CountNameValuePairs(args...);
return UpnpMakeAction(action_name, service_type, n,
args...,
nullptr, nullptr);
}
#endif
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