dev: zmq hwm rebind (#1480)

* move hwm into the zmq constructor and reconstruct the socket instead of rebind. seems to work better than rebind (most connections cant bind so fast?)

* fix after merge

* added tests to reconnect zmq sockets when setting rx zmqport and rx zmqhwm, changed the tests scripts a bit to make the receiver starting tcp port configurable

* tests: slsreceiver also starting up  with 2000 as default tcp port, using latest cli args for receiver and multi receiver

* releasr notes

---------

Co-authored-by: AliceMazzoleni99 <alice.mazzoleni@psi.ch>

python/tests/test_zmq.py

@@ -0,0 +1,51 @@
+import pytest 
+import sys 
+import time
+
+from conftest import session_simulator
+
+from slsdet import Detector
+from slsdet.utils import element_if_equal
+
+from slsdet._slsdet import slsDetectorDefs
+from utils_for_test import (
+    Log,
+    LogLevel,
+)
+
+detectorType = slsDetectorDefs.detectorType
+
+@pytest.mark.detectorintegration
+@pytest.mark.parametrize(
+    "session_simulator",
+    [
+        ("eiger", 1, 20)
+    ],
+    indirect=True,
+)
+def test_zmq_reconnect(session_simulator, request):
+    """ Test changing zmq ports and zmq hwm with zmq sockets connected (reconnect). """
+    det_type, num_interfaces, num_mods, d = session_simulator
+    assert d is not None
+    assert d.type == detectorType.EIGER
+
+
+    d.rx_zmqstream = True
+    assert d.rx_zmqstream == True
+
+    port = 14000
+    hwm = 2
+
+    for _ in range(10):
+        d.rx_zmqport = port
+        d.rx_zmqhwm = hwm
+        Log(LogLevel.INFOGREEN, f"Set zmqport={port}, zmqhwm={hwm}")
+
+        port += 1000
+        hwm += 5
+        time.sleep(1)
+
+
+    Log(LogLevel.INFOGREEN, f"✅ {request.node.name} passed")
+
+