mpd/src/DetachedSong.cxx
Max Kellermann 71f0ed8b74 *: add "noexcept" to many, many function prototypes
This eliminates some overhead, because the compiler doesn't need to
consider these functions throwing.
2017-05-08 14:44:49 +02:00

74 lines
1.9 KiB
C++

/*
* 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.
*/
#include "config.h"
#include "DetachedSong.hxx"
#include "db/LightSong.hxx"
#include "util/UriUtil.hxx"
#include "fs/Traits.hxx"
DetachedSong::DetachedSong(const LightSong &other)
:uri(other.GetURI().c_str()),
real_uri(other.real_uri != nullptr ? other.real_uri : ""),
tag(*other.tag),
mtime(other.mtime),
start_time(other.start_time),
end_time(other.end_time) {}
DetachedSong::~DetachedSong()
{
/* this destructor exists here just so it won't inlined */
}
bool
DetachedSong::IsRemote() const noexcept
{
return uri_has_scheme(GetRealURI());
}
bool
DetachedSong::IsAbsoluteFile() const noexcept
{
return PathTraitsUTF8::IsAbsolute(GetRealURI());
}
bool
DetachedSong::IsInDatabase() const noexcept
{
/* here, we use GetURI() and not GetRealURI() because
GetRealURI() is never relative */
const char *_uri = GetURI();
return !uri_has_scheme(_uri) && !PathTraitsUTF8::IsAbsolute(_uri);
}
SignedSongTime
DetachedSong::GetDuration() const noexcept
{
SongTime a = start_time, b = end_time;
if (!b.IsPositive()) {
if (tag.duration.IsNegative())
return tag.duration;
b = SongTime(tag.duration);
}
return SignedSongTime(b - a);
}