[3] | 1 | #!/usr/bin/perl |
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| 2 | # |
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| 3 | # Copyright (c) 2004-2007 - Consultas, PKG.fr |
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| 4 | # |
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| 5 | # This file is part of A2P. |
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| 6 | # |
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| 7 | # A2P is free software; you can redistribute it and/or modify |
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| 8 | # it under the terms of the GNU General Public License as published by |
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| 9 | # the Free Software Foundation; either version 2 of the License, or |
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| 10 | # (at your option) any later version. |
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| 11 | # |
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| 12 | # A2P is distributed in the hope that it will be useful, |
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| 13 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 14 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 15 | # GNU General Public License for more details. |
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| 16 | # |
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| 17 | # You should have received a copy of the GNU General Public License |
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| 18 | # along with A2P; if not, write to the Free Software |
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| 19 | # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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| 20 | # |
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| 21 | # $Id: a2p-status.pl 3 2007-10-18 16:20:19Z guillaume $ |
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| 22 | # |
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| 23 | # Simple service to synchronize Job STATUS with a DB |
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| 24 | # |
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| 25 | |
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| 26 | BEGIN { |
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| 27 | use strict ; |
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| 28 | use warnings ; |
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| 29 | use POSIX 'setsid' ; |
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| 30 | use A2P::Globals ; |
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| 31 | |
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| 32 | our $VERSION = sprintf "%s", q$Rev: 1185 $ =~ /(\d[0-9.]+)\s+/ ; |
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| 33 | |
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| 34 | if (defined($ENV{JAVA_HOME}) and $ENV{JAVA_HOME}) { |
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| 35 | # Don't fork if launch by Eclipse, script launcher unset JAVA_HOME |
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| 36 | $Progname = "a2p-eclipse" ; |
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| 37 | $MUSTQUIT = 1 ; |
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| 38 | |
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| 39 | } else { |
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| 40 | # Daemonize early |
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| 41 | my $forkpid = 0 ; |
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| 42 | our $argument = $ARGV[0] || "" ; |
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| 43 | chdir '/' or die "Can't chdir to /: $!"; |
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| 44 | open *STDIN , '<', '/dev/null' or die "Can't read from /dev/null: $!"; |
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| 45 | open *STDOUT, '>', $StdoutFile or die "Can't write to $StdoutFile: $!"; |
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| 46 | defined($forkpid = fork) or die "Can't fork: $!"; |
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| 47 | |
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| 48 | # Eventually save son PID in system file provided as argument and exit |
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| 49 | if ( $forkpid > 0 ) { |
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| 50 | if ( length($argument) > 0 ) { |
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| 51 | open *PID, '>', $argument |
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| 52 | or die "Can't open PID file '$argument': $!"; |
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| 53 | print PID $forkpid ; |
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| 54 | close(PID); |
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| 55 | } |
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| 56 | exit(0); |
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| 57 | } |
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| 58 | } |
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| 59 | } |
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| 60 | our $VERSION ; |
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| 61 | our $argument ; |
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| 62 | our $Progname ; |
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| 63 | our $MUSTQUIT ; |
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| 64 | |
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| 65 | #------------------------------------------------------------------------------- |
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| 66 | # Here we import any needed modules only after we are in background |
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| 67 | #------------------------------------------------------------------------------- |
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| 68 | |
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| 69 | use strict ; |
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| 70 | use warnings ; |
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| 71 | use integer ; |
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| 72 | use POSIX qw( :signal_h :sys_wait_h setsid ); |
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| 73 | use Time::HiRes qw( usleep gettimeofday tv_interval ); |
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| 74 | use A2P::Init ; |
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| 75 | use A2P::Globals; |
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| 76 | use A2P::Syslog ; |
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| 77 | use A2P::Signal ; |
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| 78 | use A2P::Thread ; |
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| 79 | use A2P::JobStatus qw( sync_dbm_to_db get_status ); |
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| 80 | use A2P::Signal 'LogSigMessage' ; |
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| 81 | use A2P::DB ; |
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| 82 | use A2P::DB qw( CheckJobsStatusTables CheckJobsQueueTable get_serviceid_info ); |
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| 83 | use A2P::Infos ; |
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| 84 | use A2P::AfpJob ; |
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| 85 | |
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| 86 | &Debug(" Module load error: $! $? $@") if ( $! or $? or $@ ); |
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| 87 | &Debug(" =============================START=============================="); |
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| 88 | |
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| 89 | &setsid or die "Can't set a new session: $!"; |
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| 90 | open *STDERR, '>&', *STDOUT or die "Can't redirect STDERR to STDOUT: $!"; |
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| 91 | |
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| 92 | #------------------------------------- |
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| 93 | # Here we are in a daemonized process |
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| 94 | #------------------------------------- |
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| 95 | |
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| 96 | &Debug("Current progname = $0, version $VERSION, started"); |
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| 97 | &Debug("Setting service name to $Progname"); |
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| 98 | # Update system name of this daemon to be pretty with ps command |
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| 99 | $0 = $Progname ; |
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| 100 | |
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| 101 | # Reset error code |
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| 102 | $! = 0 ; |
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| 103 | |
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| 104 | ################################################################################ |
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| 105 | sub InitCheck { |
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| 106 | |
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| 107 | # Read conf |
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| 108 | &Init ; |
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| 109 | |
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| 110 | # Check needed folders |
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| 111 | my %Folders = ( |
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| 112 | SERVICE_TMP => $SERVICE_TMP, |
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| 113 | SHMDIR => $SHMDIR |
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| 114 | ); |
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| 115 | |
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| 116 | while ( my ($var, $Path) = each(%Folders) ) { |
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| 117 | unless ( -d $Path ) { |
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| 118 | &Info("Creating $Path folder as $var"); |
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| 119 | my $Folder = "" ; |
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| 120 | foreach my $tmp_path ( split(m{[/]+}, $Path) ) { |
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| 121 | $Folder .= "/$tmp_path" ; |
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| 122 | mkdir $Folder , oct(775) unless ( -d $Folder ); |
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| 123 | &Error("Can't create '$Path' folder as $var: $!"), last |
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| 124 | unless ( -d $Folder ); |
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| 125 | } |
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| 126 | } |
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| 127 | } |
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| 128 | |
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| 129 | # Initialize SERVICE_TMP folder |
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| 130 | if ( -d $SERVICE_TMP ) { |
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| 131 | unless ( system("touch $SERVICE_TMP/init_$Progname") == 0 ) { |
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| 132 | &Error("Can't initialize $SERVICE_TMP folder: $!"); |
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| 133 | $MUSTQUIT = 1 ; |
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| 134 | } |
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| 135 | |
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| 136 | } else { |
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| 137 | &Error("Can't initialize unavailable $SERVICE_TMP folder: $!"); |
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| 138 | $MUSTQUIT = 1 ; |
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| 139 | } |
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| 140 | |
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| 141 | # Test opening logfile in case of file logging |
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| 142 | if ( $LOGFILENAME and ( $LOGFILE_VS_SYSLOG or $DEBUG_IN_FILE )) { |
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| 143 | $! = 0 ; |
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| 144 | unless (open(*LOG, '>', $LOGFILENAME)) { |
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| 145 | $LOGFILE_VS_SYSLOG = 0 ; |
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| 146 | $DEBUG_IN_FILE = 0 ; |
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| 147 | return &Error("Can't open '$LOGFILENAME': $!"); |
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| 148 | } |
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| 149 | |
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| 150 | if ( $LOGFILE_PURGE ) { |
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| 151 | &UPSTAT('PURGE-LOG'); |
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| 152 | truncate LOG , 0 ; |
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| 153 | $LOGFILE_PURGE = 0 ; |
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| 154 | } |
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| 155 | |
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| 156 | close(LOG); |
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| 157 | } |
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| 158 | |
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| 159 | # Reset Debug comportement |
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| 160 | &ResetDebug() ; |
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| 161 | |
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| 162 | &Info("Configuration reloaded") if ($do_init); |
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| 163 | $do_init = 0 ; |
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| 164 | } |
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| 165 | |
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| 166 | ################################################################################ |
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| 167 | |
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| 168 | &InitCheck( $do_init = 0 ); |
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| 169 | |
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| 170 | ################################################################################ |
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| 171 | ### Local variables |
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| 172 | ################################################################################ |
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| 173 | my @MarkTimer = &gettimeofday() ; |
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| 174 | |
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| 175 | # Status objects hash ref |
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| 176 | my $STATUS = {} ; |
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| 177 | my $factor = 0 ; |
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| 178 | my $mode = 0 ; |
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| 179 | my $afpjob = undef ; |
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| 180 | my $try_connect = 1 ; |
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| 181 | my $connected = 0 ; |
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| 182 | my $not_connected_timer = undef ; |
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| 183 | my $delay = 60 ; |
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| 184 | my %lockid_list = () ; |
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| 185 | my $event_timer = undef ; |
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| 186 | |
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| 187 | # Initialization from DB |
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| 188 | my $services_infos ; |
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| 189 | $services_infos = &get_serviceid_info() |
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| 190 | if (&a2p_db_connect() and &CheckJobsStatusTables()); |
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| 191 | |
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| 192 | &Info("$Progname service v" . A2P_RPM_VERSION . " started"); |
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| 193 | $STATS{'A2P-STATUS-VERSION'} = A2P_RPM_VERSION ; |
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| 194 | |
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| 195 | # Main loop |
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| 196 | while ( ! $MUSTQUIT ) { |
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| 197 | &TIMESTAT('MainLoop'); |
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| 198 | |
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| 199 | &LogSigMessage(); |
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| 200 | |
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| 201 | A2P::Thread::self_TEST() if $do_test ; |
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| 202 | |
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| 203 | @MarkTimer = &gettimeofday() , &Info("---MARK---") |
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| 204 | unless ( &tv_interval(\@MarkTimer) < 1800 ); |
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| 205 | |
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| 206 | ################################################################## |
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| 207 | # 1. Get a DB Access and check db tables |
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| 208 | ################################################################## |
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| 209 | $connected = 1 |
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| 210 | if (( ! $connected or $try_connect-- > 0 ) and &a2p_db_connect()); |
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| 211 | |
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| 212 | if ( $connected > 0 and &CheckJobsStatusTables and &CheckJobsQueueTable ) { |
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| 213 | ############################# |
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| 214 | # 2. Read all status objects |
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| 215 | ############################# |
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| 216 | &sync_dbm_to_db ; |
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| 217 | |
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| 218 | ########################################################### |
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| 219 | # 3. Check for events in jobs_queue table for current mode |
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| 220 | ########################################################### |
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| 221 | my @list = keys(%lockid_list) ; |
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| 222 | if ( defined($services_infos) and @list ) { |
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| 223 | my $count = 5 ; |
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| 224 | my $lockid = shift @list ; |
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| 225 | while ( $count-- ) { |
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| 226 | my ( $serviceid, $name ) = @{$lockid_list{$lockid}} ; |
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| 227 | #&Debug("Getting events for $name service") |
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| 228 | # if ($ADVANCED_DEBUGGING) ; |
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| 229 | |
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| 230 | if (defined($afpjob) and $afpjob) { |
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| 231 | $afpjob = $afpjob->get_next_from_db($serviceid) ; |
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| 232 | if (ref($afpjob) =~ /^A2P::AfpJob/) { |
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| 233 | my $job = $afpjob->jobname ; |
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| 234 | # Got an event |
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| 235 | &UPSTAT('A2P-STATUS-GOT-EVENT-'.$lockid); |
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| 236 | &Debug("Got event for $name service on $job") |
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| 237 | if ($ADVANCED_DEBUGGING) ; |
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| 238 | |
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| 239 | # Update the Status from our memory |
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| 240 | my $status = &get_status($job); |
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| 241 | $afpjob->set_status_object($status) if ($status); |
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| 242 | |
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| 243 | # Update afpspool/service name |
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| 244 | my @service = ( $lockid, $name ) ; |
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| 245 | my $spool = $services_infos->get_afpspool_of(@service); |
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| 246 | my @spools = $services_infos->get_spools_of(@service) ; |
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| 247 | &Debug("Setting afpspool to $spool on $job") |
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| 248 | if ($ADVANCED_DEBUGGING) ; |
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| 249 | $afpjob->afpspool($spool); |
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| 250 | $afpjob->otherspools(@spools); |
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| 251 | $afpjob->service($name); |
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| 252 | |
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| 253 | # Handle event getting if deleting (chained events case) |
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| 254 | my $neg_is_deleted = $afpjob->handle_event |
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| 255 | or &Warn("Bad event handling on " . $job . |
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| 256 | " A2P::AfpJob object"); |
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| 257 | |
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| 258 | # Synchronize us in jobs_queue table unless deleted |
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| 259 | &Warn("Bad event synchro on $job A2P::AfpJob") |
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| 260 | unless ( $neg_is_deleted < 0 |
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| 261 | or $afpjob->sync_with_jobs_queue ); |
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| 262 | |
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| 263 | } else { |
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| 264 | # Select next mode and/or next lockid to check |
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| 265 | if ($mode) { |
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| 266 | &UPSTAT('A2P-STATUS-ADV-EVENT-CHECKED-'.$lockid); |
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| 267 | $mode = 0 ; |
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| 268 | delete $lockid_list{$lockid} ; |
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| 269 | last unless @list ; # All possible event checked |
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| 270 | $lockid = shift @list ; |
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| 271 | |
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| 272 | } else { |
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| 273 | &UPSTAT('A2P-STATUS-USER-EVENT-CHECKED-'.$lockid); |
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| 274 | $mode = 1 ; |
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| 275 | } |
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| 276 | |
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| 277 | $afpjob = new A2P::AfpJob($mode) ; |
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| 278 | &Debug("Getting events for $name service with mode " . |
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| 279 | $mode ) if ($ADVANCED_DEBUGGING) ; |
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| 280 | |
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| 281 | $count ++ ; |
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| 282 | next ; |
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| 283 | } |
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| 284 | |
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| 285 | } else { |
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| 286 | # Initialize with a fake afpjob |
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| 287 | $afpjob = new A2P::AfpJob($mode) ; |
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| 288 | $count ++ ; |
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| 289 | next ; |
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| 290 | } |
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| 291 | } |
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| 292 | |
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| 293 | } elsif ( ref($services_infos) !~ /^A2P::Infos/i |
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| 294 | and ( ! defined($event_timer) or &tv_interval($event_timer) > 2 )) { |
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| 295 | # Reset event check timer |
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| 296 | $event_timer = [ &gettimeofday() ]; |
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| 297 | |
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| 298 | $services_infos = &get_serviceid_info ; |
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| 299 | |
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| 300 | } elsif ( ! defined($event_timer) or &tv_interval($event_timer) > 2 ) { |
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| 301 | # Reset lockid list to check for events |
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| 302 | foreach my $lockid ($services_infos->get_lockid_list()) { |
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| 303 | my $sname = $services_infos->get_servicename_of($lockid) || '' ; |
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| 304 | next unless $sname ; |
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| 305 | $lockid_list{$lockid} = [ |
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| 306 | $services_infos->get_serviceid_of($lockid), $sname ]; |
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| 307 | } |
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| 308 | |
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| 309 | # Control list |
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| 310 | @list = keys(%lockid_list) ; |
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| 311 | &Debug("Checking events for services: " . |
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| 312 | join( ', ', map { "$_ (@{$lockid_list{$_}})" } @list )) |
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| 313 | if ($ADVANCED_DEBUGGING); |
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| 314 | |
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| 315 | # Reset event check timer |
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| 316 | $event_timer = [ &gettimeofday() ]; |
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| 317 | } |
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| 318 | |
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| 319 | # TODO Check SHMDIR for not finished work |
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| 320 | |
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| 321 | # Check if still connected to DB, this reconnect also to DB if a DB |
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| 322 | # error is detected or if a reconnection DB timer is set |
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| 323 | unless (&a2p_db_connected) { |
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| 324 | &Info("Just disconnected from DB", "Retrying DB connection"); |
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| 325 | $connected = 0 ; |
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| 326 | } |
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| 327 | |
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| 328 | } elsif ( $connected > 0 ) { |
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| 329 | # Log any pending warning from DBI API |
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| 330 | &LogSigMessage(); |
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| 331 | # Not a connection error but a checktable error just warn and retry |
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| 332 | # connection in 10 minutes |
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| 333 | &Warn("Disconnecting from DB for 10 minutes"); |
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| 334 | &a2p_db_disconnect ; |
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| 335 | $not_connected_timer = [ &gettimeofday() ]; |
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| 336 | $connected = $try_connect = -10 ; |
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| 337 | |
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| 338 | } elsif ( ! $connected ) { |
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| 339 | &Info("Disconnected from DB"); |
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| 340 | $not_connected_timer = [ &gettimeofday() ]; |
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| 341 | $connected-- ; |
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| 342 | # Anyway reset delay to one minute |
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| 343 | $delay = 60 ; |
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| 344 | |
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| 345 | } elsif ( $connected <= 10 ) { |
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| 346 | # Retry only after 10 min when more than 10 connections have failed |
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| 347 | $delay = 600 ; |
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| 348 | } |
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| 349 | |
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| 350 | # Check disconnection timing when not connected |
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| 351 | if ( $connected < 0 and &tv_interval($not_connected_timer) >= $delay ) { |
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| 352 | my $delta = abs($connected) ; |
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| 353 | $delta += 9 * ($connected - 10) if ( $delta >= 10 ); |
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| 354 | &Info("Retrying DB connection after $delta minutes disconnection"); |
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| 355 | $try_connect = 1 ; |
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| 356 | $not_connected_timer = [ &gettimeofday() ]; |
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| 357 | $connected-- ; |
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| 358 | } |
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| 359 | |
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| 360 | ####################### |
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| 361 | # Check flags |
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| 362 | ####################### |
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| 363 | |
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| 364 | # true after QUIT/TERM signal has been received |
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| 365 | &TIMESTAT('MainLoop'), last if ( $do_quit ); |
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| 366 | |
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| 367 | # true after HUP signal has been received |
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| 368 | &InitCheck() if ( $do_init ); |
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| 369 | |
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| 370 | # Check to do last commits |
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| 371 | &check_commit() if ( $connected > 0 ); |
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| 372 | |
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| 373 | # Adapt USLEEP factor to be 1 when JobStatus has been found |
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| 374 | # and grow up to 10 otherwise |
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| 375 | if (keys(%{$STATUS})) { |
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| 376 | $factor = 1 ; |
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| 377 | |
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| 378 | } elsif ( $factor < 10 ) { |
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| 379 | $factor ++ ; |
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| 380 | } |
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| 381 | |
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| 382 | # Avoid zombies sub-processes |
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| 383 | waitpid(-1,&WNOHANG); |
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| 384 | |
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| 385 | &TIMESTAT('MainLoop'); |
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| 386 | usleep $factor * $USLEEP ; |
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| 387 | &UPSTAT('SLEEP-IN-MAINLOOP'); |
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| 388 | } |
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| 389 | |
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| 390 | # We can safely activate debugging when quitting is requested |
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| 391 | $NO_SYSLOG_DEBUG = 0 if $SERVICE_DEBUG ; |
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| 392 | |
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| 393 | &a2p_db_disconnect(); |
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| 394 | &LogSigMessage ; |
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| 395 | |
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| 396 | &Info("$Progname service is stopping"); |
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| 397 | |
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| 398 | # Wait until every child has quit |
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| 399 | while ( my $pid = wait ) { |
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| 400 | last if ( $pid < 0 ); |
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| 401 | &Debug("T$pid has terminated"); |
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| 402 | } |
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| 403 | |
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| 404 | &Debug("PID file = '$argument'"); |
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| 405 | |
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| 406 | if (defined($argument)) { |
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| 407 | # Delete our PID in PID file |
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| 408 | open *RET , '>', $argument or die "Can't open PID file '$argument': $!"; |
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| 409 | print RET "0" ; |
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| 410 | close(RET); |
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| 411 | } |
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| 412 | |
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| 413 | &LogSigMessage ; |
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| 414 | &Info("$Progname service stopped"); |
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| 415 | |
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| 416 | exit(0); |
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| 417 | |
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| 418 | END { |
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| 419 | # Output statistics when quitting from a diagnostic service |
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| 420 | A2P::Thread::self_TEST() if ($Progname =~ /^diagnostics/); |
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| 421 | |
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| 422 | &Debug("=============================QUIT==============================="); |
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| 423 | &LogSigMessage ; |
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| 424 | } |
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