mpd/src/stats.c

129 lines
2.8 KiB
C

/*
* Copyright (C) 2003-2011 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 "stats.h"
#include "database.h"
#include "db_visitor.h"
#include "tag.h"
#include "song.h"
#include "client.h"
#include "player_control.h"
#include "strset.h"
#include "client_internal.h"
struct stats stats;
void stats_global_init(void)
{
stats.timer = g_timer_new();
}
void stats_global_finish(void)
{
g_timer_destroy(stats.timer);
}
struct visit_data {
struct strset *artists;
struct strset *albums;
};
static void
visit_tag(struct visit_data *data, const struct tag *tag)
{
if (tag->time > 0)
stats.song_duration += tag->time;
for (unsigned i = 0; i < tag->num_items; ++i) {
const struct tag_item *item = tag->items[i];
switch (item->type) {
case TAG_ARTIST:
strset_add(data->artists, item->value);
break;
case TAG_ALBUM:
strset_add(data->albums, item->value);
break;
default:
break;
}
}
}
static bool
collect_stats_song(struct song *song, void *_data,
G_GNUC_UNUSED GError **error_r)
{
struct visit_data *data = _data;
++stats.song_count;
if (song->tag != NULL)
visit_tag(data, song->tag);
return true;
}
static const struct db_visitor collect_stats_visitor = {
.song = collect_stats_song,
};
void stats_update(void)
{
struct visit_data data;
stats.song_count = 0;
stats.song_duration = 0;
stats.artist_count = 0;
data.artists = strset_new();
data.albums = strset_new();
db_walk("", &collect_stats_visitor, &data, NULL);
stats.artist_count = strset_size(data.artists);
stats.album_count = strset_size(data.albums);
strset_free(data.artists);
strset_free(data.albums);
}
int stats_print(struct client *client)
{
client_printf(client,
"artists: %u\n"
"albums: %u\n"
"songs: %i\n"
"uptime: %li\n"
"playtime: %li\n"
"db_playtime: %li\n"
"db_update: %li\n",
stats.artist_count,
stats.album_count,
stats.song_count,
(long)g_timer_elapsed(stats.timer, NULL),
(long)(pc_get_total_play_time(client->player_control) + 0.5),
stats.song_duration,
db_get_mtime());
return 0;
}