pynetdicom.dul.DULServiceProvider

class pynetdicom.dul.DULServiceProvider(socket=None, port=None, dul_timeout=None, assoc=None)

The DICOM Upper Layer Service Provider.

Three ways to call DULServiceProvider:

• If a port number is given, the DUL will wait for incoming connections on this port.

• If a socket is given, the DUL will use this socket as the client socket.

• If neither is given, the DUL will not be able to accept connections (but will be able to initiate them.)

artim_timer

The ARTIM timer

Type

timer.Timer

association

The DUL’s current Association

Type

association.Association

dul_from_user_queue

Queue of PDUs from the DUL service user to be processed by the DUL provider

Type

queue.Queue

dul_to_user_queue

Queue of primitives from the DUL service to be processed by the DUL user

Type

queue.Queue

event_queue

List of queued events to be processed by the state machine

Type

queue.Queue

scp_socket

If the local AE is acting as an SCP, this is the connection from the peer AE to the SCP

Type

socket.socket()

scu_socket

If the local AE is acting as an SCU, this is the connection from the local AE to the peer AE SCP

Type

socket.socket()

state_machine

The DICOM Upper Layer’s State Machine

Type

fsm.StateMachine

__init__(socket=None, port=None, dul_timeout=None, assoc=None)

Parameters

• socket (socket.socket, optional) – The local AE’s listen socket

• port (int, optional) – The port number on which to wait for incoming connections

• dul_timeout (float, optional) – The maximum amount of time to wait for connection responses (in seconds)

• assoc (association.Association) – The DUL’s current Association

Methods

__init__([socket, port, dul_timeout, assoc])	param socket The local AE's listen socket
getName()
idle_timer_expired()	Checks if the idle timer has expired
isAlive()	Return whether the thread is alive.
isDaemon()
is_alive()	Return whether the thread is alive.
join([timeout])	Wait until the thread terminates.
kill_dul()	Immediately interrupts the thread
peek_next_pdu()	Check the next PDU to be processed.
receive_pdu([wait, timeout])	Get the next item to be processed out of the queue of items sent from the DUL service provider to the service user
run()	The main threading.Thread run loop.
send_pdu(params)	param params - The parameters to put on FromServiceUser [FIXME]
setDaemon(daemonic)
setName(name)
start()	Start the thread's activity.
stop_dul()	Interrupts the thread if state is "Sta1"

Attributes

daemon	A boolean value indicating whether this thread is a daemon thread.
ident	Thread identifier of this thread or None if it has not been started.
name	A string used for identification purposes only.