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dpavlin |
185 |
package daemons; |
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use warnings; |
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use strict; |
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use File::Slurp; |
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use Data::Dump qw/dump/; |
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use x11; |
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dpavlin |
208 |
use CouchDB; |
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dpavlin |
185 |
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our $pids; |
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dpavlin |
225 |
$pids = { |
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httpd => $$, |
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kvm => 'not started', |
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wireshark => 'not started', |
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} unless defined $pids; # keep pids on refresh |
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dpavlin |
185 |
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sub DESTROY { |
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warn "pids ",dump( $pids ); |
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foreach ( values %$pids ) { |
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warn "kill $_"; |
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kill 1,$_ || kill 9, $_; |
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} |
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} |
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$SIG{CHLD} = 'IGNORE'; |
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dpavlin |
208 |
sub audit { |
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my $msg = shift; |
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my $daemon = shift; |
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CouchDB::audit( $msg, $daemon, { daemon => $daemon, message => $msg, @_ } ); |
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} |
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dpavlin |
321 |
mkdir "$server::conf/pid" unless -d "$server::conf/pid"; |
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dpavlin |
185 |
sub start_stop { |
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my $daemon = shift; |
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my $pid = $pids->{$daemon}; |
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dpavlin |
321 |
my $pid_path = $daemon; |
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dpavlin |
225 |
$pid_path =~ s{/}{-}g; |
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dpavlin |
321 |
$pid_path = "$server::conf/pid/$pid_path"; |
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dpavlin |
185 |
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if ( ! $pid && -e $pid_path ) { |
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my $p = read_file $pid_path; |
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if ( kill 0, $p ) { |
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dpavlin |
208 |
audit 'adopted', $daemon, pid => $p; |
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dpavlin |
185 |
return $pids->{$daemon} = $p; |
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} else { |
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dpavlin |
208 |
audit 'not running', $daemon, pid => $p; |
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dpavlin |
185 |
unlink $pid_path; |
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} |
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} |
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$pid ||= 'not started'; |
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warn "start_stop $daemon $pid\n"; |
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dpavlin |
245 |
if ( $pid =~ m{^\d+$} && kill 0, $pid ) { |
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dpavlin |
185 |
my $pstree = `pstree -p $pid`; |
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my @pids = $pstree =~ m{\((\d+)\)}g; |
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warn "pstree $pstree pids ",dump( @pids ); |
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dpavlin |
227 |
foreach ( @pids ) { |
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warn "kill $_\n"; |
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kill 1, $_; |
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if ( kill 0, $_ ) { |
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warn "kill 9 $_"; |
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kill 9, $_; |
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} |
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} |
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dpavlin |
185 |
$pids->{$daemon} = 'stopped'; |
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dpavlin |
208 |
audit 'stopped', $daemon, pid => $pid; |
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dpavlin |
185 |
return qq|$daemon pid $pid stopped|; |
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} else { |
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if ( $pid = fork ) { |
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# parent |
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$pids->{$daemon} = $pid; |
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write_file $pid_path, $pid; |
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dpavlin |
208 |
audit 'forked', $daemon, pid => $pid; |
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dpavlin |
185 |
return qq|$daemon pid $pid started|; |
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} elsif ( defined $pid ) { |
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# child |
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my $invoke = 'start'; |
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$invoke = $1 if $daemon =~ s{/(.+)}{}; |
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dpavlin |
231 |
if ( $daemon =~ m{dhcpd|tftpd|dnsd|syslogd} ) { |
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dpavlin |
185 |
my $exec = "perl -I$server::base_dir/lib -I$server::base_dir/lib/PXElator -M$daemon -e ${daemon}::${invoke}"; |
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dpavlin |
208 |
audit 'exec', $daemon, 'exec' => $exec; |
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dpavlin |
185 |
x11::xterm( $daemon => $exec ); |
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} else { |
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my $eval = $daemon . '::' . $invoke . '(' . ( @_ ? dump(@_) : '' ) . ')'; |
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dpavlin |
208 |
audit 'eval', $daemon, 'eval' => $eval; |
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dpavlin |
185 |
eval $eval; |
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dpavlin |
208 |
audit 'error', $daemon, error => $@ if $@; |
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dpavlin |
185 |
} |
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exit; |
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} else { |
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dpavlin |
208 |
audit 'error', $daemon, error => $!; |
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dpavlin |
185 |
die "fork error $!"; |
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} |
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} |
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} |
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