1 /* Python interface to inferior events.
3 Copyright (C) 2009-2017 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
24 evpy_dealloc (PyObject *self)
26 Py_XDECREF (((event_object *) self)->dict);
27 Py_TYPE (self)->tp_free (self);
31 create_event_object (PyTypeObject *py_type)
33 event_object *event_obj;
35 event_obj = PyObject_New (event_object, py_type);
39 event_obj->dict = PyDict_New ();
43 return (PyObject*) event_obj;
46 Py_XDECREF (event_obj);
50 /* Add the attribute ATTR to the event object EVENT. In
51 python this attribute will be accessible by the name NAME.
52 returns 0 if the operation succeeds and -1 otherwise. This
53 function acquires a new reference to ATTR. */
56 evpy_add_attribute (PyObject *event, char *name, PyObject *attr)
58 return PyObject_SetAttrString (event, name, attr);
61 /* Initialize the Python event code. */
64 gdbpy_initialize_event (void)
66 return gdbpy_initialize_event_generic (&event_object_type,
70 /* Initialize the given event type. If BASE is not NULL it will
71 be set as the types base.
72 Returns 0 if initialization was successful -1 otherwise. */
75 gdbpy_initialize_event_generic (PyTypeObject *type,
78 if (PyType_Ready (type) < 0)
81 return gdb_pymodule_addobject (gdb_module, name, (PyObject *) type);
85 /* Notify the list of listens that the given EVENT has occurred.
86 returns 0 if emit is successful -1 otherwise. */
89 evpy_emit_event (PyObject *event,
90 eventregistry_object *registry)
94 /* Create a copy of call back list and use that for
95 notifying listeners to avoid skipping callbacks
96 in the case of a callback being disconnected during
98 gdbpy_ref callback_list_copy (PySequence_List (registry->callbacks));
99 if (callback_list_copy == NULL)
102 for (i = 0; i < PyList_Size (callback_list_copy.get ()); i++)
104 PyObject *func = PyList_GetItem (callback_list_copy.get (), i);
109 gdbpy_ref func_result (PyObject_CallFunctionObjArgs (func, event, NULL));
111 if (func_result == NULL)
113 /* Print the trace here, but keep going -- we want to try to
114 call all of the callbacks even if one is broken. */
115 gdbpy_print_stack ();
122 static PyGetSetDef event_object_getset[] =
124 { "__dict__", gdb_py_generic_dict, NULL,
125 "The __dict__ for this event.", &event_object_type },
129 PyTypeObject event_object_type =
131 PyVarObject_HEAD_INIT (NULL, 0)
132 "gdb.Event", /* tp_name */
133 sizeof (event_object), /* tp_basicsize */
135 evpy_dealloc, /* tp_dealloc */
141 0, /* tp_as_number */
142 0, /* tp_as_sequence */
143 0, /* tp_as_mapping */
149 0, /* tp_as_buffer */
150 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
151 "GDB event object", /* tp_doc */
154 0, /* tp_richcompare */
155 0, /* tp_weaklistoffset */
160 event_object_getset, /* tp_getset */
163 0, /* tp_descr_get */
164 0, /* tp_descr_set */
165 offsetof (event_object, dict), /* tp_dictoffset */