zmq.Poller methods

Possible events are:

• ZMQ.POLLERR – any kind of error condition occurred in a socket
• ZMQ.POLLIN – at least, one byte of data has come to the socket and can be read without blocking
• ZMQ.POLLOUT – at least, one byte of data was sent to the socket and can be written without blocking

register()

Registers a socket for polling for events:

CALL poller_name.Register(socket_name, "event_01", "event_02", "event_03")

Depending on the number of the parameters specified, registers a socket for:

• for polling on all events:

  CALL poller_name.Register(socket_name)

• for polling on the specified event:

  CALL poller_name.Register(socket_name, "event_01"")

• for polling on two specified events:

  CALL poller_name.Register(socket_name, "event_01", "event_02")

• for polling on three specified events:

  CALL poller_name.Register(socket_name, "event_01", "event_02", "event_03")

Variables data types:

ZMQ.Poller

ZMQ.Socket for the parameter

STRING for the event

poll()

Issues a polling call:

CALL poller_name.Poll()

CALL poller_name.Poll(timeout)

When the timeout parameter is specified, the method will wait for the event to occur within the specified timeout (in milliseconds):

CALL poller_name.Poll(15)

Variables data types:

INTEGER

polerr()

Checks whether the ZMQ.POLLERR event have occurred for the specified element:

CALL poller_name.Pollerr(INT)

Variables data types:

BOOLEAN

INTEGER

pollin()

Checks whether the ZMQ.POLLIN event have occurred for the specified element:

CALL poller_name.Pollin(INT)

Variables data types:

BOOLEAN

INTEGER

pollout()

Checks whether the ZMQ.POLLOUT event have occurred for the specified element:

CALL poller_name.Pollout(INT)

Variables data types:

BOOLEAN

INTEGER