zeromq - zmq.error.ZMQError: Socket operation on non-socket: How to find alive sockets before closing? -


in application, i'm creating 2 sockets , have try/except this:

try:     socketa.connect("tcp://localhost:5557")     socketb.bind("tcp://localhost:5558") except zmq.zmqerror e:      if e.errno == zmq.einval:         logger.error("endpoint supplied invalid")     else:         logger.error("the zeromq error error number {0}".format(e.errno))         raise zmqerror(e)     cleanup()

if reason, 1 of sockets cannot .connect()/.bind(), want close both sockets , terminate context in cleanup() function, how know sockets alive before closing them?

does zeromq provide information active sockets before closing them nicely?

given logic above, let use approach:

case a: both sockets did .connect() + .bind() respectively
case b: of sockets did fail in doing so.

 try:        socketa.connect(   "tcp://localhost:5557" )        socketa.setsockopt( zmq.linger, 0 )        try:             socketb.bind(      "tcp://localhost:5558" )             socketb.setsockopt( zmq.linger, 0 )         except zmq.zmqerror e:              if ( e.errno in ( zmq.einval,                                zmq.eprotonosupport,                               zmq.enocompatproto,                               zmq.eaddrinuse,                               zmq.eaddrnotavail,                               )                  ):                  logger.error( "zeromq transportclass / endpoint cannot setup [socketb]." )              if ( e.errno in ( zmq.enodev,                               zmq.enotsock,                               )                  ):                  logger.error( "zeromq request made against non-existent device or not using valid socket [socketb]." )              if ( e.errno in ( zmq.eterm,                               zmq.emthread,                               )                  ):                  logger.error( "zeromq context not in state handle request [socketb]." )               cleanup( acontextinstance, [ socketa, socketb, ] )    except zmq.zmqerror e:              if ( e.errno in ( zmq.einval,                               zmq.eprotonosupport,                               zmq.enocompatproto,                               )                  ):                  logger.error( "zeromq transportclass / endpoint cannot setup [socketa]." )              if ( e.errno in ( zmq.eterm,                               zmq.emthread,                               )                  ):                  logger.error( "zeromq context not ready handle request [socketa]." )              if ( e.errno in ( zmq.enotsock, ) ):                  logger.error( "zeromq operation requested, not on valid [socketa]." )         cleanup( acontextinstance, [ socketa, ] )  finally:       # ...       pass  def cleanup( acontexttoterminate, alistofsocketstoclose = [] ):          asocket in alistofsocketstoclose:         try:              asocket.close()             # external responsibility setup linger 0 right @ asocket instantiation point         except:              pass     try:          acontexttoterminate.term()     except:          pass     finally:          # ...          pass

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