1 /* Python interface to inferior threads.
3 Copyright (C) 2009-2015 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/>. */
21 #include "gdbthread.h"
23 #include "python-internal.h"
25 extern PyTypeObject thread_object_type
26 CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("thread_object");
28 /* Require that INFERIOR be a valid inferior ID. */
29 #define THPY_REQUIRE_VALID(Thread) \
31 if (!Thread->thread) \
33 PyErr_SetString (PyExc_RuntimeError, \
34 _("Thread no longer exists.")); \
40 create_thread_object (struct thread_info *tp)
42 thread_object *thread_obj;
44 thread_obj = PyObject_New (thread_object, &thread_object_type);
48 thread_obj->thread = tp;
49 thread_obj->inf_obj = find_inferior_object (ptid_get_pid (tp->ptid));
55 thpy_dealloc (PyObject *self)
57 Py_DECREF (((thread_object *) self)->inf_obj);
58 Py_TYPE (self)->tp_free (self);
62 thpy_get_name (PyObject *self, void *ignore)
64 thread_object *thread_obj = (thread_object *) self;
67 THPY_REQUIRE_VALID (thread_obj);
69 name = thread_obj->thread->name;
71 name = target_thread_name (thread_obj->thread);
76 return PyString_FromString (name);
80 thpy_set_name (PyObject *self, PyObject *newvalue, void *ignore)
82 thread_object *thread_obj = (thread_object *) self;
85 if (! thread_obj->thread)
87 PyErr_SetString (PyExc_RuntimeError, _("Thread no longer exists."));
93 PyErr_SetString (PyExc_TypeError,
94 _("Cannot delete `name' attribute."));
97 else if (newvalue == Py_None)
99 else if (! gdbpy_is_string (newvalue))
101 PyErr_SetString (PyExc_TypeError,
102 _("The value of `name' must be a string."));
107 name = python_string_to_host_string (newvalue);
112 xfree (thread_obj->thread->name);
113 thread_obj->thread->name = name;
119 thpy_get_num (PyObject *self, void *closure)
121 thread_object *thread_obj = (thread_object *) self;
123 THPY_REQUIRE_VALID (thread_obj);
125 return PyLong_FromLong (thread_obj->thread->num);
128 /* Getter for InferiorThread.ptid -> (pid, lwp, tid).
129 Returns a tuple with the thread's ptid components. */
132 thpy_get_ptid (PyObject *self, void *closure)
136 thread_object *thread_obj = (thread_object *) self;
138 THPY_REQUIRE_VALID (thread_obj);
140 return gdbpy_create_ptid_object (thread_obj->thread->ptid);
143 /* Implementation of InferiorThread.switch ().
144 Makes this the GDB selected thread. */
147 thpy_switch (PyObject *self, PyObject *args)
149 thread_object *thread_obj = (thread_object *) self;
151 THPY_REQUIRE_VALID (thread_obj);
155 switch_to_thread (thread_obj->thread->ptid);
157 CATCH (except, RETURN_MASK_ALL)
159 GDB_PY_HANDLE_EXCEPTION (except);
166 /* Implementation of InferiorThread.is_stopped () -> Boolean.
167 Return whether the thread is stopped. */
170 thpy_is_stopped (PyObject *self, PyObject *args)
172 thread_object *thread_obj = (thread_object *) self;
174 THPY_REQUIRE_VALID (thread_obj);
176 if (is_stopped (thread_obj->thread->ptid))
182 /* Implementation of InferiorThread.is_running () -> Boolean.
183 Return whether the thread is running. */
186 thpy_is_running (PyObject *self, PyObject *args)
188 thread_object *thread_obj = (thread_object *) self;
190 THPY_REQUIRE_VALID (thread_obj);
192 if (is_running (thread_obj->thread->ptid))
198 /* Implementation of InferiorThread.is_exited () -> Boolean.
199 Return whether the thread is exited. */
202 thpy_is_exited (PyObject *self, PyObject *args)
204 thread_object *thread_obj = (thread_object *) self;
206 THPY_REQUIRE_VALID (thread_obj);
208 if (is_exited (thread_obj->thread->ptid))
214 /* Implementation of gdb.InfThread.is_valid (self) -> Boolean.
215 Returns True if this inferior Thread object still exists
219 thpy_is_valid (PyObject *self, PyObject *args)
221 thread_object *thread_obj = (thread_object *) self;
223 if (! thread_obj->thread)
229 /* Return a reference to a new Python object representing a ptid_t.
230 The object is a tuple containing (pid, lwp, tid). */
232 gdbpy_create_ptid_object (ptid_t ptid)
238 ret = PyTuple_New (3);
242 pid = ptid_get_pid (ptid);
243 lwp = ptid_get_lwp (ptid);
244 tid = ptid_get_tid (ptid);
246 PyTuple_SET_ITEM (ret, 0, PyInt_FromLong (pid));
247 PyTuple_SET_ITEM (ret, 1, PyInt_FromLong (lwp));
248 PyTuple_SET_ITEM (ret, 2, PyInt_FromLong (tid));
253 /* Implementation of gdb.selected_thread () -> gdb.InferiorThread.
254 Returns the selected thread object. */
257 gdbpy_selected_thread (PyObject *self, PyObject *args)
259 PyObject *thread_obj;
261 thread_obj = (PyObject *) find_thread_object (inferior_ptid);
264 Py_INCREF (thread_obj);
272 gdbpy_initialize_thread (void)
274 if (PyType_Ready (&thread_object_type) < 0)
277 return gdb_pymodule_addobject (gdb_module, "InferiorThread",
278 (PyObject *) &thread_object_type);
281 static PyGetSetDef thread_object_getset[] =
283 { "name", thpy_get_name, thpy_set_name,
284 "The name of the thread, as set by the user or the OS.", NULL },
285 { "num", thpy_get_num, NULL, "ID of the thread, as assigned by GDB.", NULL },
286 { "ptid", thpy_get_ptid, NULL, "ID of the thread, as assigned by the OS.",
292 static PyMethodDef thread_object_methods[] =
294 { "is_valid", thpy_is_valid, METH_NOARGS,
295 "is_valid () -> Boolean.\n\
296 Return true if this inferior thread is valid, false if not." },
297 { "switch", thpy_switch, METH_NOARGS,
299 Makes this the GDB selected thread." },
300 { "is_stopped", thpy_is_stopped, METH_NOARGS,
301 "is_stopped () -> Boolean\n\
302 Return whether the thread is stopped." },
303 { "is_running", thpy_is_running, METH_NOARGS,
304 "is_running () -> Boolean\n\
305 Return whether the thread is running." },
306 { "is_exited", thpy_is_exited, METH_NOARGS,
307 "is_exited () -> Boolean\n\
308 Return whether the thread is exited." },
313 PyTypeObject thread_object_type =
315 PyVarObject_HEAD_INIT (NULL, 0)
316 "gdb.InferiorThread", /*tp_name*/
317 sizeof (thread_object), /*tp_basicsize*/
319 thpy_dealloc, /*tp_dealloc*/
326 0, /*tp_as_sequence*/
334 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/
335 "GDB thread object", /* tp_doc */
338 0, /* tp_richcompare */
339 0, /* tp_weaklistoffset */
342 thread_object_methods, /* tp_methods */
344 thread_object_getset, /* tp_getset */
347 0, /* tp_descr_get */
348 0, /* tp_descr_set */
349 0, /* tp_dictoffset */