185 lines
6.2 KiB
Perl
185 lines
6.2 KiB
Perl
#!/usr/bin/perl -wT
|
|
#
|
|
# ==========================================================================
|
|
#
|
|
# 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
|
|
|
|
zmwatch.pl - ZoneMinder WatchDog Script
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
zmwatch.pl
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
This does some basic setup for ZoneMinder to run and then periodically
|
|
checks the fps output of the active daemons to check they haven't
|
|
locked up. If they have then they are killed and restarted
|
|
|
|
=cut
|
|
use strict;
|
|
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 POSIX;
|
|
use DBI;
|
|
use autouse 'Data::Dumper'=>qw(Dumper);
|
|
|
|
$| = 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();
|
|
|
|
Info( "Watchdog starting\n" );
|
|
Info( "Watchdog pausing for ".START_DELAY." seconds\n" );
|
|
sleep( START_DELAY );
|
|
|
|
my $dbh = zmDbConnect();
|
|
|
|
my $sql = $Config{ZM_SERVER_ID} ? 'SELECT * FROM Monitors WHERE ServerId=?' : 'SELECT * FROM Monitors';
|
|
my $sth = $dbh->prepare_cached( $sql )
|
|
or Fatal( "Can't prepare '$sql': ".$dbh->errstr() );
|
|
|
|
while( 1 ) {
|
|
my $now = time();
|
|
my $res = $sth->execute( $Config{ZM_SERVER_ID} ? $Config{ZM_SERVER_ID} : () )
|
|
or Fatal( "Can't execute: ".$sth->errstr() );
|
|
while( my $monitor = $sth->fetchrow_hashref() ) {
|
|
next if $monitor->{Function} eq 'None';
|
|
my $restart = 0;
|
|
if ( zmMemVerify( $monitor ) ) {
|
|
# Check we have got an image recently
|
|
my $image_time = zmGetLastWriteTime( $monitor );
|
|
if ( !defined($image_time) ) {
|
|
# Can't read from shared data
|
|
Debug( "LastWriteTime is not defined." );
|
|
zmMemInvalidate( $monitor );
|
|
next;
|
|
}
|
|
Debug( "LastWriteTime is = $image_time." );
|
|
if ( !$image_time ) {
|
|
my $startup_time = zmGetStartupTime( $monitor );
|
|
if ( $now - $startup_time > $Config{ZM_WATCH_MAX_DELAY} ) {
|
|
Info( "Restarting capture daemon for ".$monitor->{Name}.", no image since startup. Startup time was $startup_time - now $now > $Config{ZM_WATCH_MAX_DELAY}\n" );
|
|
$restart = 1;
|
|
} else {
|
|
# We can't get the last capture time so can't be sure it's died, it might just be starting up.
|
|
zmMemInvalidate( $monitor );
|
|
next;
|
|
}
|
|
}
|
|
if ( ! $restart ) {
|
|
my $max_image_delay = ( $monitor->{MaxFPS}
|
|
&&($monitor->{MaxFPS}>0)
|
|
&&($monitor->{MaxFPS}<1)
|
|
) ? (3/$monitor->{MaxFPS})
|
|
: $Config{ZM_WATCH_MAX_DELAY}
|
|
;
|
|
my $image_delay = $now-$image_time;
|
|
Debug( "Monitor $monitor->{Id} last captured $image_delay seconds ago, max is $max_image_delay\n" );
|
|
if ( $image_delay > $max_image_delay ) {
|
|
Info( "Restarting capture daemon for "
|
|
.$monitor->{Name}.", time since last capture $image_delay seconds ($now-$image_time)\n"
|
|
);
|
|
$restart = 1;
|
|
}
|
|
} # end if ! restart
|
|
} else {
|
|
Info( "Restarting capture daemon for ".$monitor->{Name}.", shared data not valid\n" );
|
|
$restart = 1;
|
|
}
|
|
|
|
if ( $restart ) {
|
|
my $command;
|
|
if ( $monitor->{Type} eq 'Local' ) {
|
|
$command = "zmdc.pl restart zmc -d $monitor->{Device}";
|
|
} else {
|
|
$command = "zmdc.pl restart zmc -m $monitor->{Id}";
|
|
}
|
|
runCommand( $command );
|
|
} elsif ( $monitor->{Function} ne 'Monitor' ) {
|
|
# Now check analysis daemon
|
|
$restart = 0;
|
|
# Check we have got an image recently
|
|
my $image_time = zmGetLastReadTime( $monitor );
|
|
if ( !defined($image_time) ) {
|
|
# Can't read from shared data
|
|
$restart = 1;
|
|
Error( "Error reading shared data for $$monitor{id} $$monitor{Name}\n");
|
|
} elsif ( !$image_time ) {
|
|
# We can't get the last capture time so can't be sure it's died.
|
|
$restart = 1;
|
|
Error( "Error getting last capture time for $$monitor{id} $$monitor{Name}\n");
|
|
} else {
|
|
|
|
my $max_image_delay = ( $monitor->{MaxFPS}
|
|
&&($monitor->{MaxFPS}>0)
|
|
&&($monitor->{MaxFPS}<1)
|
|
) ? (3/$monitor->{MaxFPS})
|
|
: $Config{ZM_WATCH_MAX_DELAY}
|
|
;
|
|
my $image_delay = $now-$image_time;
|
|
Debug( "Monitor $monitor->{Id} last analysed $image_delay seconds ago, max is $max_image_delay\n" );
|
|
if ( $image_delay > $max_image_delay ) {
|
|
Info( "Analysis daemon for $$monitor{id} $$monitor{Name} needs restarting,"
|
|
." time since last analysis $image_delay seconds ($now-$image_time)\n"
|
|
);
|
|
$restart = 1;
|
|
}
|
|
}
|
|
|
|
if ( $restart ) {
|
|
Info( "Restarting analysis daemon for $$monitor{id} $$monitor{Name}\n");
|
|
my $command = "zmdc.pl restart zma -m ".$monitor->{Id};
|
|
runCommand( $command );
|
|
} # end if restart
|
|
} # end if check analysis daemon
|
|
# Prevent open handles building up if we have connect to shared memory
|
|
zmMemInvalidate( $monitor ); # Close our file handle to the zmc process we are about to end
|
|
} # end foreach monitor
|
|
sleep( $Config{ZM_WATCH_CHECK_INTERVAL} );
|
|
} # end while (1)
|
|
|
|
Info( "Watchdog exiting\n" );
|
|
exit();
|
|
1;
|
|
__END__
|