diff -r 4a9900aef04e -r 9a008ab4811b eric6/DebugClients/Python/MultiProcessDebugExtension.py
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/eric6/DebugClients/Python/MultiProcessDebugExtension.py Sun Feb 16 19:36:46 2020 +0100
@@ -0,0 +1,90 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2002 - 2020 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a function to patch the process creation functions to
+support multiprocess debugging.
+"""
+
+import sys
+
+from DebugUtilities import isWindowsPlatform, patchArguments, isPythonProgram
+
+_debugClient = None
+
+
+def patchModule(module, functionName, createFunction):
+ """
+ Function to replace a function of a module with a modified one.
+
+ @param module reference to the module
+ @type types.ModuleType
+ @param functionName name of the function to be replaced
+ @type str
+ @param createFunction function creating the replacement
+ @type types.FunctionType
+ """
+ if hasattr(module, functionName):
+ originalName = 'original_' + functionName
+ if not hasattr(module, originalName):
+ setattr(module, originalName, getattr(module, functionName))
+ setattr(module, functionName, createFunction(originalName))
+
+
+def createExecl(originalName):
+ """
+ Function to patch the 'execl' process creation functions.
+
+ <ul>
+ <li>os.execl(path, arg0, arg1, ...)</li>
+ <li>os.execle(path, arg0, arg1, ..., env)</li>
+ <li>os.execlp(file, arg0, arg1, ...)</li>
+ <li>os.execlpe(file, arg0, arg1, ..., env)</li>
+ </ul>
+ """
+ def newExecl(path, *args):
+ """
+ Function replacing the 'execl' functions of the os module.
+ """
+ print(args)
+ import os
+ if (
+ _debugClient.debugging and
+ _debugClient.multiprocessSupport
+ ):
+ args = patchArguments(_debugClient, args)
+ if isPythonProgram(args[0]):
+ path = args[0]
+ print(args)
+ return getattr(os, originalName)(path, *args)
+ return newExecl
+
+def patchNewProcessFunctions(multiprocessEnabled, debugClient):
+ """
+ Function to patch the process creation functions to support multiprocess
+ debugging.
+
+ @param multiprocessEnabled flag indicating multiprocess support
+ @type bool
+ @param debugClient reference to the debug client object
+ @type DebugClient
+ """
+ global _debugClient
+
+ if not multiprocessEnabled:
+ # return without patching
+ return
+
+ import os
+
+ # patch 'os.exec...()' functions
+ patchModule(os, "execl", createExecl)
+ patchModule(os, "execle", createExecl)
+ patchModule(os, "execlp", createExecl)
+ patchModule(os, "execlpe", createExecl)
+
+ # TODO: implement patching of the various functions of the os module
+
+ _debugClient = debugClient
