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package XAS::Lib::Pidfile; |
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our $VERSION = '0.01'; |
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my $mixin; |
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BEGIN { |
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$mixin = 'XAS::Lib::Pidfile::Unix'; |
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$mixin = 'XAS::Lib::Pidfile::Win32' if ($^O eq 'MSWin32'); |
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} |
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use XAS::Factory; |
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use File::Basename; |
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1
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87
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use XAS::Class |
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debug => 0, |
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version => $VERSION, |
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base => 'XAS::Base', |
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mixin => $mixin, |
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utils => 'trim dotid', |
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accessors => 'lockmgr lock', |
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filesystem => 'Dir', |
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vars => { |
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PARAMS => { |
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pid => 1, |
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file => { optional => 1, default => undef, isa => 'Badger::Filesystem::File' }, |
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} |
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} |
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; |
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1
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#use Data::Dumper; |
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# ---------------------------------------------------------------------- |
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# Public Methods |
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# ---------------------------------------------------------------------- |
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sub write { |
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my $self = shift; |
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0
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my $stat = 0; |
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my $lock = $self->lock; |
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my $output = sub { |
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my $fh = $self->file->open('w'); |
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$fh->printf("%s\n", $self->pid); |
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$fh->close; |
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}; |
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0
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if ($self->lockmgr->lock($lock)) { |
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0
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0
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if ($self->file->exists) { |
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$output->(); |
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} else { |
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0
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$self->file->create(); |
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$output->(); |
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} |
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0
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$stat = 1; |
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$self->lockmgr->unlock($lock); |
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} |
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0
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return $stat; |
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} |
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72
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sub remove { |
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0
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1
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my $self = shift; |
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0
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my $lock = $self->lock; |
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0
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my $pid = $self->_get_pid; |
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0
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0
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if ($pid == $$) { |
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0
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0
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if ($self->lockmgr->lock($lock)) { |
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0
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0
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$self->file->delete() if ($self->file->exists); |
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$self->lockmgr->unlock($lock); |
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} |
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87
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} |
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89
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} |
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91
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# ---------------------------------------------------------------------- |
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# Private Methods |
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# ---------------------------------------------------------------------- |
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95
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sub _get_pid { |
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0
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0
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my $self = shift; |
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0
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my $pid = undef; |
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0
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my $lock = $self->lock; |
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101
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0
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if ($self->lockmgr->lock($lock)) { |
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103
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0
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0
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if ($self->file->exists) { |
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105
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0
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my $fh = $self->file->open(); |
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0
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$pid = $fh->getline(); |
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0
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$pid = trim($pid); |
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0
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$fh->close(); |
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110
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} |
111
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112
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0
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$self->lockmgr->unlock($lock); |
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114
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} |
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116
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0
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return $pid |
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118
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} |
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120
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sub init { |
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0
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0
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1
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my $class = shift; |
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123
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0
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my $self = $class->SUPER::init(@_); |
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125
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0
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0
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unless (defined($self->{'file'})) { |
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127
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0
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$self->{'file'} = $self->env->pid_file; |
128
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129
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} |
130
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131
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0
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my $basename = fileparse($self->env->script, qr/\.[^.]*/); |
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133
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0
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$self->{'lock'} = Dir($self->file->volume, $self->file->directory, $basename)->path; |
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0
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$self->{'lockmgr'} = XAS::Factory->module('lockmgr'); |
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136
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0
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$self->lockmgr->add( |
137
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-key => $self->lock, |
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-driver => 'Filesystem', |
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); |
140
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141
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0
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return $self; |
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143
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} |
144
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145
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1; |
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147
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__END__ |