The DelegateManager class manages the creation of true managed delegate instances that dispatch calls to Python methods.
        /// <summary>
        /// Initialize Method
        /// </summary>
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method
        /// more than once, though initialization will only happen on the
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// initSigs can be set to 1 to do default python signal configuration. This will override the way signals are handled by the application.
        /// </remarks>
        public static void Initialize(IEnumerable <string> args, bool setSysArgv = true, bool initSigs = false)
        {
            if (!initialized)
            {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize(initSigs);
                initialized = true;
                Exceptions.Clear();

                // Make sure we clean up properly on app domain unload.
                AppDomain.CurrentDomain.DomainUnload += OnDomainUnload;

                // Remember to shut down the runtime.
                AddShutdownHandler(Runtime.Shutdown);

                // The global scope gets used implicitly quite early on, remember
                // to clear it out when we shut down.
                AddShutdownHandler(PyScopeManager.Global.Clear);

                if (setSysArgv)
                {
                    Py.SetArgv(args);
                }
            }
        }
Exemple #2
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        /// <summary>
        /// Initialize Method
        /// </summary>
        ///
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method
        /// more than once, though initialization will only happen on the
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// </remarks>

        public static void Initialize()
        {
            if (!initialized)
            {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize();
                initialized = true;
                Exceptions.Clear();
            }
        }
Exemple #3
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        //====================================================================
        // Register a new Python object event handler with the event.
        //====================================================================

        internal bool AddEventHandler(IntPtr target, IntPtr handler)
        {
            Object obj = null;

            if (target != IntPtr.Zero)
            {
                CLRObject co = (CLRObject)ManagedType.GetManagedObject(target);
                obj = co.inst;
            }

            // Create a true delegate instance of the appropriate type to
            // wrap the Python handler. Note that wrapper delegate creation
            // always succeeds, though calling the wrapper may fail.

            Type     type = this.info.EventHandlerType;
            Delegate d    = DelegateManager.GetDelegate(type, handler);

            // Now register the handler in a mapping from instance to pairs
            // of (handler hash, delegate) so we can lookup to remove later.
            // All this is done lazily to avoid overhead until an event is
            // actually subscribed to by a Python event handler.

            if (reg == null)
            {
                reg = new Hashtable();
            }
            object    key  = (obj != null) ? obj : this.info.ReflectedType;
            ArrayList list = reg[key] as ArrayList;

            if (list == null)
            {
                list     = new ArrayList();
                reg[key] = list;
            }
            list.Add(new Handler(Runtime.PyObject_Hash(handler), d));

            // Note that AddEventHandler helper only works for public events,
            // so we have to get the underlying add method explicitly.

            object[]   args = { d };
            MethodInfo mi   = this.info.GetAddMethod(true);

            mi.Invoke(obj, BindingFlags.Default, null, args, null);

            return(true);
        }
Exemple #4
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        public static IntPtr tp_new(IntPtr tp, IntPtr args, IntPtr kw)
        {
            DelegateObject self = (DelegateObject)GetManagedObject(tp);

            if (Runtime.PyTuple_Size(args) != 1)
            {
                string message = "class takes exactly one argument";
                return(Exceptions.RaiseTypeError(message));
            }

            IntPtr method = Runtime.PyTuple_GetItem(args, 0);

            if (Runtime.PyCallable_Check(method) != 1)
            {
                return(Exceptions.RaiseTypeError("argument must be callable"));
            }

            Delegate d = DelegateManager.GetDelegate(self.type, method);

            return(CLRObject.GetInstHandle(d, self.pyHandle));
        }
        /// <summary>
        /// Initialize Method
        /// </summary>
        ///
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method 
        /// more than once, though initialization will only happen on the 
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// </remarks>

        public static void Initialize() {
            if (!initialized) {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize();
                initialized = true;
                Exceptions.Clear();

                // register the atexit callback (this doesn't use Py_AtExit as the C atexit
                // callbacks are called after python is fully finalized but the python ones
                // are called while the python engine is still running).
                string code =
                "import atexit, clr\n" +
                "atexit.register(clr._AtExit)\n";
                PyObject r = PythonEngine.RunString(code);
                if (r != null)
                    r.Dispose();
            }
        }
Exemple #6
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        /// <summary>
        /// Initialize Method
        /// </summary>
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method
        /// more than once, though initialization will only happen on the
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// initSigs can be set to 1 to do default python signal configuration. This will override the way signals are handled by the application.
        /// </remarks>
        public static void Initialize(IEnumerable <string> args, bool setSysArgv = true, bool initSigs = false)
        {
            if (!initialized)
            {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize(initSigs);
                initialized = true;
                Exceptions.Clear();

                // Make sure we clean up properly on app domain unload.
                AppDomain.CurrentDomain.DomainUnload += OnDomainUnload;

                // Remember to shut down the runtime.
                AddShutdownHandler(Runtime.Shutdown);

                // The global scope gets used implicitly quite early on, remember
                // to clear it out when we shut down.
                AddShutdownHandler(PyScopeManager.Global.Clear);

                if (setSysArgv)
                {
                    Py.SetArgv(args);
                }

                // register the atexit callback (this doesn't use Py_AtExit as the C atexit
                // callbacks are called after python is fully finalized but the python ones
                // are called while the python engine is still running).
                string code =
                    "import atexit, clr\n" +
                    "atexit.register(clr._AtExit)\n";
                PythonEngine.Exec(code);

                // Load the clr.py resource into the clr module
                IntPtr clr      = Python.Runtime.ImportHook.GetCLRModule();
                IntPtr clr_dict = Runtime.PyModule_GetDict(clr);

                var locals = new PyDict();
                try
                {
                    IntPtr module         = Runtime.PyImport_AddModule("clr._extras");
                    IntPtr module_globals = Runtime.PyModule_GetDict(module);
                    IntPtr builtins       = Runtime.PyEval_GetBuiltins();
                    Runtime.PyDict_SetItemString(module_globals, "__builtins__", builtins);

                    Assembly assembly = Assembly.GetExecutingAssembly();
                    using (Stream stream = assembly.GetManifestResourceStream("clr.py"))
                        using (var reader = new StreamReader(stream))
                        {
                            // add the contents of clr.py to the module
                            string clr_py = reader.ReadToEnd();
                            Exec(clr_py, module_globals, locals.Handle);
                        }

                    // add the imported module to the clr module, and copy the API functions
                    // and decorators into the main clr module.
                    Runtime.PyDict_SetItemString(clr_dict, "_extras", module);
                    foreach (PyObject key in locals.Keys())
                    {
                        if (!key.ToString().StartsWith("_") || key.ToString().Equals("__version__"))
                        {
                            PyObject value = locals[key];
                            Runtime.PyDict_SetItem(clr_dict, key.Handle, value.Handle);
                            value.Dispose();
                        }
                        key.Dispose();
                    }
                }
                finally
                {
                    locals.Dispose();
                }
            }
        }
Exemple #7
0
        /// <summary>
        /// Initialize Method
        /// </summary>
        ///
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method 
        /// more than once, though initialization will only happen on the 
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// </remarks>

        public static void Initialize() {
            if (!initialized) {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize();
                initialized = true;
                Exceptions.Clear();
            }
        }
Exemple #8
0
        /// <summary>
        /// Initialize Method
        /// </summary>
        ///
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method
        /// more than once, though initialization will only happen on the
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// </remarks>
        public static void Initialize()
        {
            if (!initialized)
            {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize();
                initialized = true;
                Exceptions.Clear();

                // register the atexit callback (this doesn't use Py_AtExit as the C atexit
                // callbacks are called after python is fully finalized but the python ones
                // are called while the python engine is still running).
                string code =
                    "import atexit, clr\n" +
                    "atexit.register(clr._AtExit)\n";
                PyObject r = PythonEngine.RunString(code);
                if (r != null)
                {
                    r.Dispose();
                }

                // Load the clr.py resource into the clr module
                IntPtr clr      = Python.Runtime.ImportHook.GetCLRModule();
                IntPtr clr_dict = Runtime.PyModule_GetDict(clr);

                PyDict locals = new PyDict();
                try
                {
                    IntPtr module         = Runtime.PyImport_AddModule("clr._extras");
                    IntPtr module_globals = Runtime.PyModule_GetDict(module);
                    IntPtr builtins       = Runtime.PyEval_GetBuiltins();
                    Runtime.PyDict_SetItemString(module_globals, "__builtins__", builtins);

                    var assembly = Assembly.GetExecutingAssembly();
                    using (Stream stream = assembly.GetManifestResourceStream("clr.py"))
                        using (StreamReader reader = new StreamReader(stream))
                        {
                            // add the contents of clr.py to the module
                            string   clr_py = reader.ReadToEnd();
                            PyObject result = RunString(clr_py, module_globals, locals.Handle);
                            if (null == result)
                            {
                                throw new PythonException();
                            }
                            result.Dispose();
                        }

                    // add the imported module to the clr module, and copy the API functions
                    // and decorators into the main clr module.
                    Runtime.PyDict_SetItemString(clr_dict, "_extras", module);
                    foreach (PyObject key in locals.Keys())
                    {
                        if (!key.ToString().StartsWith("_"))
                        {
                            PyObject value = locals[key];
                            Runtime.PyDict_SetItem(clr_dict, key.Handle, value.Handle);
                            value.Dispose();
                        }
                        key.Dispose();
                    }
                }
                finally
                {
                    locals.Dispose();
                }
            }
        }
Exemple #9
0
        /// <summary>
        /// Initialize Method
        /// </summary>
        ///
        /// <remarks>
        /// Initialize the Python runtime. It is safe to call this method
        /// more than once, though initialization will only happen on the
        /// first call. It is *not* necessary to hold the Python global
        /// interpreter lock (GIL) to call this method.
        /// </remarks>
        public static void Initialize()
        {
            if (!initialized)
            {
                // Creating the delegateManager MUST happen before Runtime.Initialize
                // is called. If it happens afterwards, DelegateManager's CodeGenerator
                // throws an exception in its ctor.  This exception is eaten somehow
                // during an initial "import clr", and the world ends shortly thereafter.
                // This is probably masking some bad mojo happening somewhere in Runtime.Initialize().
                delegateManager = new DelegateManager();
                Runtime.Initialize();
                initialized = true;
                Exceptions.Clear();

                // register the atexit callback (this doesn't use Py_AtExit as the C atexit
                // callbacks are called after python is fully finalized but the python ones
                // are called while the python engine is still running).
                string code =
                    "import atexit, clr\n" +
                    "atexit.register(clr._AtExit)\n";
                PyObject r = PythonEngine.RunString(code);
                if (r != null)
                    r.Dispose();

                // Load the clr.py resource into the clr module
                IntPtr clr = Python.Runtime.ImportHook.GetCLRModule();
                IntPtr clr_dict = Runtime.PyModule_GetDict(clr);

                PyDict locals = new PyDict();
                try
                {
                    IntPtr module = Runtime.PyImport_AddModule("clr._extras");
                    IntPtr module_globals = Runtime.PyModule_GetDict(module);
                    IntPtr builtins = Runtime.PyEval_GetBuiltins();
                    Runtime.PyDict_SetItemString(module_globals, "__builtins__", builtins);

                    var assembly = Assembly.GetExecutingAssembly();
                    using (Stream stream = assembly.GetManifestResourceStream("clr.py"))
                    using (StreamReader reader = new StreamReader(stream))
                    {
                        // add the contents of clr.py to the module
                        string clr_py = reader.ReadToEnd();
                        PyObject result = RunString(clr_py, module_globals, locals.Handle);
                        if (null == result)
                            throw new PythonException();
                        result.Dispose();
                    }

                    // add the imported module to the clr module, and copy the API functions
                    // and decorators into the main clr module.
                    Runtime.PyDict_SetItemString(clr_dict, "_extras", module);
                    foreach (PyObject key in locals.Keys())
                    {
                        if (!key.ToString().StartsWith("_") || key.ToString().Equals("__version__"))
                        {
                            PyObject value = locals[key];
                            Runtime.PyDict_SetItem(clr_dict, key.Handle, value.Handle);
                            value.Dispose();
                        }
                        key.Dispose();
                    }
                }
                finally
                {
                    locals.Dispose();
                }
            }
        }