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_free.py

@@ -21,7 +21,7 @@ from slsdet import Detector, Ctb, freeSharedMemory
 from utils_for_test import (
     Log,
     LogLevel,
-    SERVER_START_PORTNO
+    DET_START_TCP_PORTNO
 )
 
 from conftest import session_simulator
@@ -33,7 +33,7 @@ def test_exptime_after_free_should_raise(session_simulator):
 
 
     d = Ctb() # creates multi shm (assuming no shm exists)
-    d.hostname = f"localhost:{SERVER_START_PORTNO}" # hostname command creates mod shm, d maps to it
+    d.hostname = f"localhost:{DET_START_TCP_PORTNO}" # hostname command creates mod shm, d maps to it
 
     d.free() # frees the shm, d should not map to it anymore
 
@@ -47,7 +47,7 @@ def test_exptime_after_free_should_raise(session_simulator):
 
 def free_and_create_shm():
     k = Ctb() # opens existing shm if it exists
-    k.hostname = f"localhost:{SERVER_START_PORTNO}" # free and recreate shm, maps to local shm struct
+    k.hostname = f"localhost:{DET_START_TCP_PORTNO}" # free and recreate shm, maps to local shm struct
 
 @pytest.mark.detectorintegration
 @pytest.mark.parametrize("session_simulator",[("ctb", 1, 1)],indirect=True)
@@ -56,7 +56,7 @@ def test_exptime_after_not_passing_var_should_raise(session_simulator):
 
 
     d = Ctb() # creates multi shm (assuming no shm exists)
-    d.hostname = f"localhost:{SERVER_START_PORTNO}" # hostname command creates mod shm, d maps to it
+    d.hostname = f"localhost:{DET_START_TCP_PORTNO}" # hostname command creates mod shm, d maps to it
 
     free_and_create_shm() # ctb() opens multi shm, hostname command frees and recreates mod shm but shm struct is local. d still maps to old shm struct
 
@@ -72,7 +72,7 @@ def test_exptime_after_not_passing_var_should_raise(session_simulator):
 
 def free_and_create_shm_passing_ctb_var(k):
     k = Ctb() # opens existing shm if it exists (disregards k as its new Ctb only local to this function)
-    k.hostname = f"localhost:{SERVER_START_PORTNO}" # free and recreate shm, maps to local shm struct
+    k.hostname = f"localhost:{DET_START_TCP_PORTNO}" # free and recreate shm, maps to local shm struct
 
 @pytest.mark.detectorintegration
 @pytest.mark.parametrize("session_simulator",[("ctb", 1, 1)],indirect=True)
@@ -80,7 +80,7 @@ def test_exptime_after_passing_ctb_var_should_raise(session_simulator):
     Log(LogLevel.INFOBLUE, f'\nRunning test_exptime_after_passing_ctb_var_should_raise')
 
     d = Ctb() # creates multi shm (assuming no shm exists)
-    d.hostname = f"localhost:{SERVER_START_PORTNO}" # hostname command creates mod shm, d maps to it
+    d.hostname = f"localhost:{DET_START_TCP_PORTNO}" # hostname command creates mod shm, d maps to it
 
     free_and_create_shm_passing_ctb_var(d) # ctb() opens multi shm, hostname command frees and recreates mod shm but shm struct is local. d still maps to old shm struct
 
@@ -95,7 +95,7 @@ def test_exptime_after_passing_ctb_var_should_raise(session_simulator):
 
 def free_and_create_shm_returning_ctb():
     k = Ctb() # opens existing shm if it exists (disregards k as its new Ctb only local to this function)
-    k.hostname = f"localhost:{SERVER_START_PORTNO}" # free and recreate shm, maps to local shm struct
+    k.hostname = f"localhost:{DET_START_TCP_PORTNO}" # free and recreate shm, maps to local shm struct
     return k
 
 @pytest.mark.detectorintegration
@@ -128,8 +128,8 @@ def test_hostname_twice_acess_old_should_raise(session_simulator):
     Log(LogLevel.INFOBLUE, f'\nRunning test_hostname_twice_acess_old_should_raise')
 
     d = Ctb() # creates multi shm (assuming no shm exists)
-    d.hostname = f"localhost:{SERVER_START_PORTNO}" # hostname command creates mod shm, d maps to it
-    d.hostname = f"localhost:{SERVER_START_PORTNO}"  # Freeing and recreating shm while mapping d to it (old shm is out of scope)
+    d.hostname = f"localhost:{DET_START_TCP_PORTNO}" # hostname command creates mod shm, d maps to it
+    d.hostname = f"localhost:{DET_START_TCP_PORTNO}"  # Freeing and recreating shm while mapping d to it (old shm is out of scope)
     
     # this should not throw 
     exptime_val = d.exptime

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")
+
+