### Author: Dag Wieers <dag@wieers.com>

class dstat_plugin(dstat):
    def __init__(self):
        self.name = 'utmp'
        self.nick = ('ses', 'usr', 'adm' )
        self.vars = ('sessions', 'users', 'root')
        self.type = 'd'
        self.width = 3
        self.scale = 10

    def check(self): 
        try:
            global utmp
            import utmp
        except:
            raise Exception, 'Needs python-utmp module'

    def extract(self):
        for name in self.vars: self.val[name] = 0
        for u in utmp.UtmpRecord():
#           print '# type:%s pid:%s line:%s id:%s user:%s host:%s session:%s' % (i.ut_type, i.ut_pid, i.ut_line, i.ut_id, i.ut_user, i.ut_host, i.ut_session)
            if u.ut_type == utmp.USER_PROCESS:
                self.val['users'] = self.val['users'] + 1
                if u.ut_user == 'root':
                    self.val['root'] = self.val['root'] + 1
            self.val['sessions'] = self.val['sessions'] + 1

# vim:ts=4:sw=4:et