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 static 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
;
150 volatile struct gdb_exception except
;
152 THPY_REQUIRE_VALID (thread_obj
);
154 TRY_CATCH (except
, RETURN_MASK_ALL
)
156 switch_to_thread (thread_obj
->thread
->ptid
);
158 GDB_PY_HANDLE_EXCEPTION (except
);
163 /* Implementation of InferiorThread.is_stopped () -> Boolean.
164 Return whether the thread is stopped. */
167 thpy_is_stopped (PyObject
*self
, PyObject
*args
)
169 thread_object
*thread_obj
= (thread_object
*) self
;
171 THPY_REQUIRE_VALID (thread_obj
);
173 if (is_stopped (thread_obj
->thread
->ptid
))
179 /* Implementation of InferiorThread.is_running () -> Boolean.
180 Return whether the thread is running. */
183 thpy_is_running (PyObject
*self
, PyObject
*args
)
185 thread_object
*thread_obj
= (thread_object
*) self
;
187 THPY_REQUIRE_VALID (thread_obj
);
189 if (is_running (thread_obj
->thread
->ptid
))
195 /* Implementation of InferiorThread.is_exited () -> Boolean.
196 Return whether the thread is exited. */
199 thpy_is_exited (PyObject
*self
, PyObject
*args
)
201 thread_object
*thread_obj
= (thread_object
*) self
;
203 THPY_REQUIRE_VALID (thread_obj
);
205 if (is_exited (thread_obj
->thread
->ptid
))
211 /* Implementation of gdb.InfThread.is_valid (self) -> Boolean.
212 Returns True if this inferior Thread object still exists
216 thpy_is_valid (PyObject
*self
, PyObject
*args
)
218 thread_object
*thread_obj
= (thread_object
*) self
;
220 if (! thread_obj
->thread
)
226 /* Return a reference to a new Python object representing a ptid_t.
227 The object is a tuple containing (pid, lwp, tid). */
229 gdbpy_create_ptid_object (ptid_t ptid
)
235 ret
= PyTuple_New (3);
239 pid
= ptid_get_pid (ptid
);
240 lwp
= ptid_get_lwp (ptid
);
241 tid
= ptid_get_tid (ptid
);
243 PyTuple_SET_ITEM (ret
, 0, PyInt_FromLong (pid
));
244 PyTuple_SET_ITEM (ret
, 1, PyInt_FromLong (lwp
));
245 PyTuple_SET_ITEM (ret
, 2, PyInt_FromLong (tid
));
250 /* Implementation of gdb.selected_thread () -> gdb.InferiorThread.
251 Returns the selected thread object. */
254 gdbpy_selected_thread (PyObject
*self
, PyObject
*args
)
256 PyObject
*thread_obj
;
258 thread_obj
= (PyObject
*) find_thread_object (inferior_ptid
);
261 Py_INCREF (thread_obj
);
269 gdbpy_initialize_thread (void)
271 if (PyType_Ready (&thread_object_type
) < 0)
274 return gdb_pymodule_addobject (gdb_module
, "InferiorThread",
275 (PyObject
*) &thread_object_type
);
278 static PyGetSetDef thread_object_getset
[] =
280 { "name", thpy_get_name
, thpy_set_name
,
281 "The name of the thread, as set by the user or the OS.", NULL
},
282 { "num", thpy_get_num
, NULL
, "ID of the thread, as assigned by GDB.", NULL
},
283 { "ptid", thpy_get_ptid
, NULL
, "ID of the thread, as assigned by the OS.",
289 static PyMethodDef thread_object_methods
[] =
291 { "is_valid", thpy_is_valid
, METH_NOARGS
,
292 "is_valid () -> Boolean.\n\
293 Return true if this inferior thread is valid, false if not." },
294 { "switch", thpy_switch
, METH_NOARGS
,
296 Makes this the GDB selected thread." },
297 { "is_stopped", thpy_is_stopped
, METH_NOARGS
,
298 "is_stopped () -> Boolean\n\
299 Return whether the thread is stopped." },
300 { "is_running", thpy_is_running
, METH_NOARGS
,
301 "is_running () -> Boolean\n\
302 Return whether the thread is running." },
303 { "is_exited", thpy_is_exited
, METH_NOARGS
,
304 "is_exited () -> Boolean\n\
305 Return whether the thread is exited." },
310 static PyTypeObject thread_object_type
=
312 PyVarObject_HEAD_INIT (NULL
, 0)
313 "gdb.InferiorThread", /*tp_name*/
314 sizeof (thread_object
), /*tp_basicsize*/
316 thpy_dealloc
, /*tp_dealloc*/
323 0, /*tp_as_sequence*/
331 Py_TPFLAGS_DEFAULT
| Py_TPFLAGS_HAVE_ITER
, /*tp_flags*/
332 "GDB thread object", /* tp_doc */
335 0, /* tp_richcompare */
336 0, /* tp_weaklistoffset */
339 thread_object_methods
, /* tp_methods */
341 thread_object_getset
, /* tp_getset */
344 0, /* tp_descr_get */
345 0, /* tp_descr_set */
346 0, /* tp_dictoffset */