class Monitor:
"""
Internal monitor class for handling the process state.
"""
def __init__(self, home, id=None, init=None):
self.home = home;
# if id is specified, this is a client monitor.
self.session = Session( home, id );
self.init = init;
self.sp = None;
self.started = time.time();
self.setproctitle();
#self.log_fd = sys.stdout;
self.log_fd = self.open_log();
#sys.stdout = LogWrapper("STDOUT", self);
#sys.stderr = LogWrapper("STDERR", self);
def open_log(self):
bestname = self.session.id;
return self.home.open_log( "%s.log"%( bestname ) )
def log(self, *items):
d_now = str( datetime.datetime.now() );
self.log_fd.write( "%s %s: %s\n"%( self.session.id, d_now, " ".join([str(i) for i in items]) ) );
self.log_fd.flush();
def run(self):
"""
Wait for all child processes to die.
"""
self.running = True;
self.session.create();
self.log("Monitor Running");
while self.running:
try:
c = MonitorCommand.from_json( self.session.recv() );
if not c:
self.log( "Got bad command:", repr(s) );
else:
self._handle_reception(c);
except Exception, e:
import traceback
self.log( "Exc:", traceback.format_exc() );
if not self._check_process():
self.log("Child exited with returncode:", self.sp.returncode);
self.log("Initiating shutdown");
self.stop();
self.session.destroy();
self.log("Monitor Shutting Down");
def __init__(self, home, id=None, init=None):
self.home = home;
# if id is specified, this is a client monitor.
self.session = Session( home, id );
self.init = init;
self.sp = None;
self.started = time.time();
self.setproctitle();
#self.log_fd = sys.stdout;
self.log_fd = self.open_log();