77 lines
1.9 KiB
C++
77 lines
1.9 KiB
C++
/*
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* Copyright (C) 2003-2014 The Music Player Daemon Project
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* http://www.musicpd.org
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "config.h"
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#include "Count.hxx"
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#include "Selection.hxx"
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#include "Interface.hxx"
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#include "client/Client.hxx"
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#include "LightSong.hxx"
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#include <functional>
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struct SearchStats {
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unsigned n_songs;
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unsigned long total_time_s;
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constexpr SearchStats()
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:n_songs(0), total_time_s(0) {}
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};
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static void
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PrintSearchStats(Client &client, const SearchStats &stats)
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{
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client_printf(client,
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"songs: %u\n"
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"playtime: %lu\n",
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stats.n_songs, stats.total_time_s);
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}
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static bool
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stats_visitor_song(SearchStats &stats, const LightSong &song)
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{
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stats.n_songs++;
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stats.total_time_s += song.GetDuration();
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return true;
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}
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bool
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PrintSongCount(Client &client, const char *name,
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const SongFilter *filter,
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Error &error)
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{
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const Database *db = client.GetDatabase(error);
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if (db == nullptr)
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return false;
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const DatabaseSelection selection(name, true, filter);
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SearchStats stats;
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using namespace std::placeholders;
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const auto f = std::bind(stats_visitor_song, std::ref(stats),
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_1);
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if (!db->Visit(selection, f, error))
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return false;
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PrintSearchStats(client, stats);
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return true;
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}
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