1 /* Python interface to inferior threads.
3 Copyright (C) 2009-2016 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;
118 /* Getter for InferiorThread.num. */
121 thpy_get_num (PyObject *self, void *closure)
123 thread_object *thread_obj = (thread_object *) self;
125 THPY_REQUIRE_VALID (thread_obj);
127 return PyLong_FromLong (thread_obj->thread->per_inf_num);
130 /* Getter for InferiorThread.global_num. */
133 thpy_get_global_num (PyObject *self, void *closure)
135 thread_object *thread_obj = (thread_object *) self;
137 THPY_REQUIRE_VALID (thread_obj);
139 return PyLong_FromLong (thread_obj->thread->global_num);
142 /* Getter for InferiorThread.ptid -> (pid, lwp, tid).
143 Returns a tuple with the thread's ptid components. */
146 thpy_get_ptid (PyObject *self, void *closure)
148 thread_object *thread_obj = (thread_object *) self;
150 THPY_REQUIRE_VALID (thread_obj);
152 return gdbpy_create_ptid_object (thread_obj->thread->ptid);
155 /* Getter for InferiorThread.inferior -> Inferior. */
158 thpy_get_inferior (PyObject *self, void *ignore)
160 thread_object *thread_obj = (thread_object *) self;
162 THPY_REQUIRE_VALID (thread_obj);
164 return thread_obj->inf_obj;
167 /* Implementation of InferiorThread.switch ().
168 Makes this the GDB selected thread. */
171 thpy_switch (PyObject *self, PyObject *args)
173 thread_object *thread_obj = (thread_object *) self;
175 THPY_REQUIRE_VALID (thread_obj);
179 switch_to_thread (thread_obj->thread->ptid);
181 CATCH (except, RETURN_MASK_ALL)
183 GDB_PY_HANDLE_EXCEPTION (except);
190 /* Implementation of InferiorThread.is_stopped () -> Boolean.
191 Return whether the thread is stopped. */
194 thpy_is_stopped (PyObject *self, PyObject *args)
196 thread_object *thread_obj = (thread_object *) self;
198 THPY_REQUIRE_VALID (thread_obj);
200 if (is_stopped (thread_obj->thread->ptid))
206 /* Implementation of InferiorThread.is_running () -> Boolean.
207 Return whether the thread is running. */
210 thpy_is_running (PyObject *self, PyObject *args)
212 thread_object *thread_obj = (thread_object *) self;
214 THPY_REQUIRE_VALID (thread_obj);
216 if (is_running (thread_obj->thread->ptid))
222 /* Implementation of InferiorThread.is_exited () -> Boolean.
223 Return whether the thread is exited. */
226 thpy_is_exited (PyObject *self, PyObject *args)
228 thread_object *thread_obj = (thread_object *) self;
230 THPY_REQUIRE_VALID (thread_obj);
232 if (is_exited (thread_obj->thread->ptid))
238 /* Implementation of gdb.InfThread.is_valid (self) -> Boolean.
239 Returns True if this inferior Thread object still exists
243 thpy_is_valid (PyObject *self, PyObject *args)
245 thread_object *thread_obj = (thread_object *) self;
247 if (! thread_obj->thread)
253 /* Return a reference to a new Python object representing a ptid_t.
254 The object is a tuple containing (pid, lwp, tid). */
256 gdbpy_create_ptid_object (ptid_t ptid)
262 ret = PyTuple_New (3);
266 pid = ptid_get_pid (ptid);
267 lwp = ptid_get_lwp (ptid);
268 tid = ptid_get_tid (ptid);
270 PyTuple_SET_ITEM (ret, 0, PyInt_FromLong (pid));
271 PyTuple_SET_ITEM (ret, 1, PyInt_FromLong (lwp));
272 PyTuple_SET_ITEM (ret, 2, PyInt_FromLong (tid));
277 /* Implementation of gdb.selected_thread () -> gdb.InferiorThread.
278 Returns the selected thread object. */
281 gdbpy_selected_thread (PyObject *self, PyObject *args)
283 PyObject *thread_obj;
285 thread_obj = (PyObject *) find_thread_object (inferior_ptid);
288 Py_INCREF (thread_obj);
296 gdbpy_initialize_thread (void)
298 if (PyType_Ready (&thread_object_type) < 0)
301 return gdb_pymodule_addobject (gdb_module, "InferiorThread",
302 (PyObject *) &thread_object_type);
305 static PyGetSetDef thread_object_getset[] =
307 { "name", thpy_get_name, thpy_set_name,
308 "The name of the thread, as set by the user or the OS.", NULL },
309 { "num", thpy_get_num, NULL,
310 "Per-inferior number of the thread, as assigned by GDB.", NULL },
311 { "global_num", thpy_get_global_num, NULL,
312 "Global number of the thread, as assigned by GDB.", NULL },
313 { "ptid", thpy_get_ptid, NULL, "ID of the thread, as assigned by the OS.",
315 { "inferior", thpy_get_inferior, NULL,
316 "The Inferior object this thread belongs to.", NULL },
321 static PyMethodDef thread_object_methods[] =
323 { "is_valid", thpy_is_valid, METH_NOARGS,
324 "is_valid () -> Boolean.\n\
325 Return true if this inferior thread is valid, false if not." },
326 { "switch", thpy_switch, METH_NOARGS,
328 Makes this the GDB selected thread." },
329 { "is_stopped", thpy_is_stopped, METH_NOARGS,
330 "is_stopped () -> Boolean\n\
331 Return whether the thread is stopped." },
332 { "is_running", thpy_is_running, METH_NOARGS,
333 "is_running () -> Boolean\n\
334 Return whether the thread is running." },
335 { "is_exited", thpy_is_exited, METH_NOARGS,
336 "is_exited () -> Boolean\n\
337 Return whether the thread is exited." },
342 PyTypeObject thread_object_type =
344 PyVarObject_HEAD_INIT (NULL, 0)
345 "gdb.InferiorThread", /*tp_name*/
346 sizeof (thread_object), /*tp_basicsize*/
348 thpy_dealloc, /*tp_dealloc*/
355 0, /*tp_as_sequence*/
363 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_ITER, /*tp_flags*/
364 "GDB thread object", /* tp_doc */
367 0, /* tp_richcompare */
368 0, /* tp_weaklistoffset */
371 thread_object_methods, /* tp_methods */
373 thread_object_getset, /* tp_getset */
376 0, /* tp_descr_get */
377 0, /* tp_descr_set */
378 0, /* tp_dictoffset */