zoneminder/scripts/zmstats.pl.in

139 lines
4.7 KiB
Perl

#!@PERL_EXECUTABLE@ -wT
use strict;
use warnings;
use bytes;
# ==========================================================================
#
# These are the elements you can edit to suit your installation
#
# ==========================================================================
use constant START_DELAY => 30; # To give everything else time to start
# ==========================================================================
#
# Don't change anything below here
#
# ==========================================================================
@EXTRA_PERL_LIB@
use ZoneMinder;
use DBI;
$| = 1;
$ENV{PATH} = '/bin:/usr/bin:/usr/local/bin';
$ENV{SHELL} = '/bin/sh' if exists $ENV{SHELL};
delete @ENV{qw(IFS CDPATH ENV BASH_ENV)};
logInit();
logSetSignal();
my $zm_terminate = 0;
sub TermHandler {
Info('Received TERM, exiting');
$zm_terminate = 1;
}
$SIG{TERM} = \&TermHandler;
$SIG{INT} = \&TermHandler;
Info('Stats Daemon starting in '.START_DELAY.' seconds');
sleep(START_DELAY);
my $dbh = zmDbConnect();
while (!$zm_terminate) {
while ( ! ( $dbh and $dbh->ping() ) ) {
Info('Reconnecting to db');
if ( !($dbh = zmDbConnect()) ) {
#What we do here is not that important, so just skip this interval
sleep($Config{ZM_STATS_UPDATE_INTERVAL});
}
}
$dbh->do('DELETE FROM Events_Hour WHERE StartDateTime < DATE_SUB(NOW(), INTERVAL 1 hour)') or Error($dbh->errstr());
$dbh->do('DELETE FROM Events_Day WHERE StartDateTime < DATE_SUB(NOW(), INTERVAL 1 day)') or Error($dbh->errstr());
$dbh->do('DELETE FROM Events_Week WHERE StartDateTime < DATE_SUB(NOW(), INTERVAL 1 week)') or Error($dbh->errstr());
$dbh->do('DELETE FROM Events_Month WHERE StartDateTime < DATE_SUB(NOW(), INTERVAL 1 month)') or Error($dbh->errstr());
# Prune the Logs table if required
if ( $Config{ZM_LOG_DATABASE_LIMIT} ) {
if ( $Config{ZM_LOG_DATABASE_LIMIT} =~ /^\d+$/ ) {
# Number of rows
my $selectLogRowCountSql = 'SELECT count(*) AS `Rows` FROM `Logs`';
my $selectLogRowCountSth = $dbh->prepare_cached( $selectLogRowCountSql )
or Fatal("Can't prepare '$selectLogRowCountSql': ".$dbh->errstr());
my $res = $selectLogRowCountSth->execute()
or Fatal("Can't execute: ".$selectLogRowCountSth->errstr());
my $row = $selectLogRowCountSth->fetchrow_hashref();
my $logRows = $row->{Rows};
if ( $logRows > $Config{ZM_LOG_DATABASE_LIMIT} ) {
my $rows = zmDbDo('DELETE low_priority FROM `Logs` ORDER BY `TimeKey` ASC LIMIT ?', $logRows - $Config{ZM_LOG_DATABASE_LIMIT});
Debug('Deleted '.$rows.' log table entries by count') if defined $rows;
}
} else {
# Time of record
# 7 days is invalid. We need to remove the s
if ( $Config{ZM_LOG_DATABASE_LIMIT} =~ /^(.*)s$/ ) {
$Config{ZM_LOG_DATABASE_LIMIT} = $1;
}
my $rows;
do {
$rows = zmDbDo('DELETE FROM `Logs` WHERE `TimeKey` < unix_timestamp(now() - interval '.$Config{ZM_LOG_DATABASE_LIMIT}.') LIMIT 100');
Debug("Deleted $rows log table entries by time") if $rows;
} while ($rows and ($rows == 100) and !$zm_terminate);
}
} # end if ZM_LOG_DATABASE_LIMIT
my $rows;
do {
# Delete any sessions that are more than a week old. Limiting to 100 because mysql sucks
$rows = zmDbDo('DELETE FROM Sessions WHERE access < ? LIMIT 100', time - (60*60*24*7));
Debug("Deleted $rows sessions") if $rows;
} while ($rows and ($rows == 100) and !$zm_terminate);
sleep($Config{ZM_STATS_UPDATE_INTERVAL});
} # end while (!$zm_terminate)
Info('Stats Daemon exiting');
exit();
1;
__END__
#
# ==========================================================================
#
# ZoneMinder WatchDog Script, $Date$, $Revision$
# Copyright (C) 2001-2008 Philip Coombes
#
# 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.
#
# ==========================================================================
=head1 NAME
zmstats.pl - ZoneMinder Stats Updating Script
=head1 SYNOPSIS
zmstats.pl
=head1 DESCRIPTION
This does background updating various stats in the db like event counts, diskspace, etc.
=cut