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/*
* Copyright (C) 2003-2014 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_LIGHT_SONG_HXX
#define MPD_LIGHT_SONG_HXX
#include "Chrono.hxx"
#include "Compiler.h"
#include <string>
#include <time.h>
struct Tag;
/**
* A reference to a song file. Unlike the other "Song" classes in the
* MPD code base, this one consists only of pointers. It is supposed
* to be as light as possible while still providing all the
* information MPD has about a song file. This class does not manage
* any memory, and the pointers become invalid quickly. Only to be
* used to pass around during well-defined situations.
*/
struct LightSong {
/**
* If this is not nullptr, then it denotes a prefix for the
* #uri. To build the full URI, join directory and uri with a
* slash.
*/
const char *directory;
const char *uri;
/**
* The "real" URI, the one to be used for opening the
* resource. If this attribute is nullptr, then #uri (and
* #directory) shall be used.
*
* This attribute is used for songs from the database which
* have a relative URI.
*/
const char *real_uri;
/**
* Must not be nullptr.
*/
const Tag *tag;
time_t mtime;
/**
* Start of this sub-song within the file.
*/
SongTime start_time;
/**
* End of this sub-song within the file.
* Unused if zero.
*/
SongTime end_time;
gcc_pure
std::string GetURI() const {
if (directory == nullptr)
return std::string(uri);
std::string result(directory);
result.push_back('/');
result.append(uri);
return result;
}
gcc_pure
SignedSongTime GetDuration() const;
};
#endif
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