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/*
* Copyright 2003-2016 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.hxx"
#include "player/Control.hxx"
#include "client/Response.hxx"
#include "Partition.hxx"
#include "Instance.hxx"
#include "db/Selection.hxx"
#include "db/Interface.hxx"
#include "db/Stats.hxx"
#include "util/Error.hxx"
#include "system/Clock.hxx"
#include "Log.hxx"
#ifndef WIN32
/**
* The monotonic time stamp when MPD was started. It is used to
* calculate the uptime.
*/
static unsigned start_time;
#endif
#ifdef ENABLE_DATABASE
static DatabaseStats stats;
enum class StatsValidity : uint8_t {
INVALID, VALID, FAILED,
};
static StatsValidity stats_validity = StatsValidity::INVALID;
#endif
void stats_global_init(void)
{
#ifndef WIN32
start_time = MonotonicClockS();
#endif
}
#ifdef ENABLE_DATABASE
void
stats_invalidate()
{
stats_validity = StatsValidity::INVALID;
}
static bool
stats_update(const Database &db)
{
switch (stats_validity) {
case StatsValidity::INVALID:
break;
case StatsValidity::VALID:
return true;
case StatsValidity::FAILED:
return false;
}
Error error;
const DatabaseSelection selection("", true);
try {
if (db.GetStats(selection, stats, error)) {
stats_validity = StatsValidity::VALID;
return true;
} else {
LogError(error);
stats_validity = StatsValidity::FAILED;
return false;
}
} catch (const std::runtime_error &e) {
LogError(e);
stats_validity = StatsValidity::FAILED;
return false;
}
}
static void
db_stats_print(Response &r, const Database &db)
{
if (!stats_update(db))
return;
unsigned total_duration_s =
std::chrono::duration_cast<std::chrono::seconds>(stats.total_duration).count();
r.Format("artists: %u\n"
"albums: %u\n"
"songs: %u\n"
"db_playtime: %u\n",
stats.artist_count,
stats.album_count,
stats.song_count,
total_duration_s);
const time_t update_stamp = db.GetUpdateStamp();
if (update_stamp > 0)
r.Format("db_update: %lu\n",
(unsigned long)update_stamp);
}
#endif
void
stats_print(Response &r, const Partition &partition)
{
r.Format("uptime: %u\n"
"playtime: %lu\n",
#ifdef WIN32
GetProcessUptimeS(),
#else
MonotonicClockS() - start_time,
#endif
(unsigned long)(partition.pc.GetTotalPlayTime() + 0.5));
#ifdef ENABLE_DATABASE
const Database *db = partition.instance.database;
if (db != nullptr)
db_stats_print(r, *db);
#endif
}