--- a/plugger.py Mon Aug 25 18:02:15 2008 +0200
+++ b/plugger.py Mon Aug 25 18:03:10 2008 +0200
@@ -600,7 +600,7 @@
ieclib_path = os.path.join(base_folder, "matiec", "lib")
# import for project creation timestamping
-from threading import Timer+from threading import Timer, Lock from time import localtime
from datetime import datetime
# import necessary stuff from PLCOpenEditor
@@ -663,6 +663,8 @@
# Setup debug information
self.IECdebug_callables = {}
+ self.IECdebug_callables_lock = Lock() # Timer to prevent rapid-fire when registering many variables
self.DebugTimer=Timer(0.5,self.RegisterDebugVarToConnector)
self.ResetIECProgramsAndVariables()
@@ -1058,6 +1060,7 @@
def RegisterDebugVarToConnector(self):
if self._connector is not None:
+ self.IECdebug_callables_lock.acquire() for IECPath,WeakCallableDict in self.IECdebug_callables:
if len(WeakCallableDict) == 0:
# Callable Dict is empty.
@@ -1070,6 +1073,7 @@
self.logger.write_warning("Debug : Unknown variable %s\n"%IECPath)
+ self.IECdebug_callables_lock.release() self._connector.TraceVariables(Idxs)
def SubscribeDebugIECVariable(self, IECPath, callable, *args, **kwargs):
@@ -1078,10 +1082,12 @@
to a WeakKeyDictionary linking
weakly referenced callables to optionnal args
+ self.IECdebug_callables_lock.acquire() # If no entry exist, create a new one with a fresh WeakKeyDictionary
self.IECdebug_callables.setdefault(
WeakKeyDictionary())[callable]=(args, kwargs)
+ self.IECdebug_callables_lock.release() # Rearm anti-rapid-fire timer
