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Versions: 381
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Contents
require 'fileutils'
require 'puppet/util/lockfile'
class Puppet::Util::Pidlock
def initialize(lockfile)
@lockfile = Puppet::Util::Lockfile.new(lockfile)
end
def locked?
clear_if_stale
@lockfile.locked?
end
def mine?
Process.pid == lock_pid
end
def lock
return mine? if locked?
@lockfile.lock(Process.pid)
end
def unlock
if mine?
return @lockfile.unlock
else
false
end
end
def lock_pid
pid = @lockfile.lock_data
begin
Integer(pid)
rescue ArgumentError, TypeError
nil
end
end
def file_path
@lockfile.file_path
end
def clear_if_stale
return @lockfile.unlock if lock_pid.nil?
errors = [Errno::ESRCH]
# Win32::Process now throws SystemCallError. Since this could be
# defined anywhere, only add when on Windows.
errors << SystemCallError if Puppet::Util::Platform.windows?
begin
Process.kill(0, lock_pid)
rescue *errors
@lockfile.unlock
end
end
private :clear_if_stale
end
Version data entries
381 entries across 381 versions & 3 rubygems