binutils-gdb/gdb/python/py-evtregistry.c

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2011-02-05 06:27:23 +01:00
/* Python interface to inferior thread event registries.
Copyright (C) 2009-2012 Free Software Foundation, Inc.
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This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "command.h"
#include "py-events.h"
events_object gdb_py_events;
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static PyTypeObject eventregistry_object_type;
/* Implementation of EventRegistry.connect () -> NULL.
Add FUNCTION to the list of listeners. */
static PyObject *
evregpy_connect (PyObject *self, PyObject *function)
{
PyObject *func;
PyObject *callback_list = (((eventregistry_object *) self)->callbacks);
if (!PyArg_ParseTuple (function, "O", &func))
return NULL;
if (!PyCallable_Check (func))
{
PyErr_SetString (PyExc_RuntimeError, "Function is not callable");
return NULL;
}
if (PyList_Append (callback_list, func) < 0)
return NULL;
Py_RETURN_NONE;
}
/* Implementation of EventRegistry.disconnect () -> NULL.
Remove FUNCTION from the list of listeners. */
static PyObject *
evregpy_disconnect (PyObject *self, PyObject *function)
{
PyObject *func;
int index;
PyObject *callback_list = (((eventregistry_object *) self)->callbacks);
if (!PyArg_ParseTuple (function, "O", &func))
return NULL;
index = PySequence_Index (callback_list, func);
if (index < 0)
Py_RETURN_NONE;
if (PySequence_DelItem (callback_list, index) < 0)
return NULL;
Py_RETURN_NONE;
}
/* Create a new event registry. This function uses PyObject_New
and therefore returns a new reference that callers must handle. */
eventregistry_object *
create_eventregistry_object (void)
{
eventregistry_object *eventregistry_obj;
eventregistry_obj = PyObject_New (eventregistry_object,
&eventregistry_object_type);
if (!eventregistry_obj)
return NULL;
eventregistry_obj->callbacks = PyList_New (0);
if (!eventregistry_obj->callbacks)
return NULL;
return eventregistry_obj;
}
static void
evregpy_dealloc (PyObject *self)
{
Py_XDECREF (((eventregistry_object *) self)->callbacks);
Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3.
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Py_TYPE (self)->tp_free (self);
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}
/* Initialize the Python event registry code. */
void
gdbpy_initialize_eventregistry (void)
{
if (PyType_Ready (&eventregistry_object_type) < 0)
return;
Py_INCREF (&eventregistry_object_type);
PyModule_AddObject (gdb_module, "EventRegistry",
(PyObject *) &eventregistry_object_type);
}
/* Retern the number of listeners currently connected to this
registry. */
int
evregpy_no_listeners_p (eventregistry_object *registry)
{
return PyList_Size (registry->callbacks) == 0;
}
static PyMethodDef eventregistry_object_methods[] =
{
{ "connect", evregpy_connect, METH_VARARGS, "Add function" },
{ "disconnect", evregpy_disconnect, METH_VARARGS, "Remove function" },
{ NULL } /* Sentinel. */
};
static PyTypeObject eventregistry_object_type =
{
Add support for Python 3. * NEWS: Mention Python 3 support. * varobj.c (value_get_print_value): Use python_string_to_target_string. * python/py-block.c: Use PyVarObject_HEAD_INIT in initialization of type objects. * python/py-breakpoint.c: Ditto. * python/py-cmd.c: Ditto. * python/py-event.c: Ditto. * python/py-event.h: Ditto. * python/py-evtregistry.c: Ditto. * python/py-finishbreakpoint.c: Ditto. * python/py-frame.c: Ditto. * python/py-function.c: Ditto. * python/py-infthread.c: Ditto. * python/py-lazy-string.c: Ditto. * python/py-progspace.c: Ditto. * /python/py-symbol.c: Ditto. * python/py-evts.c: (gdbpy_initialize_py_events): Add module initialization for Python 3. * python/py-inferior.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (infpy_read_memory): Return memoryview object if Python 3. (infpy_write_memory): Use "s*" operand parsing code for Python 3. (infpy_search_memory): Ditto. (get_buffer): New function for Python 3. * python/py-objfile.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (objfpy_dealloc): Use Py_TYPE to call tp_free. * python/py-param.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (get_attr): Use PyUnicode_CompareWithASCIIString if Python 3. (set_attr): Ditto. * python/py-prettyprint.c (print_string_repr): use PyBytes methods instead of PyString methods if Python 3. (print_children): Skip push_dummy_python_frame call if Python 3. * python/py-symtab.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (salpy_dealloc): Use Py_TYPE to call tp_free. * python/py-type.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (field_dealloc): Use Py_TYPE to call tp_free. (typy_dealloc): Ditto. (type_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/py-utils.c (python_string_to_unicode): Omit non-Unicode string case for Python 3. (unicode_to_encoded_python_string): Shorten code (no functional change). (python_string_to_target_python_string): Comment that in Python 3 returned value is a Python "bytes" type. (gdbpy_is_string): Omit non-Unicode string check in Python 3. (gdb_py_object_from_longest): Omit non-long integer case in Python 3. (gdb_py_object_from_ulongest): Ditto. * python/py-value.c: Use PyVarObject_HEAD_INIT in initialization of type objects. (valpy_dealloc): Use Py_TYPE to call tp_free. (valpy_int): Omit function if Python 3. (convert_value_from_python): Use "%S" format (Python object as a string) if Python 3. (value_object_as_number): Adjust struct initializations for differences in layout for Python 2 vs. Python 3. * python/python-config.py: Adjust syntax for Python 3 compatibility. Include "sys.abiflags" string as part of python library name, if that attribute exists (Python 3). * python/python-internal.h (IS_PY3): Define if Python 3. (Py_TPFLAGS_HAVE_ITER, Py_TPFLAGS_CHECKTYPES): Define with placeholder value if Python 3. (PyInt_Check, PyInt_FromLong, PyInt_AsLong, PyString_FromString, PyString_Decode, PyString_FromFormat, PyString_Check): Define as analogous Python 3 API function if Python 3. (PyVarObject_HEAD_INIT): Define if not already defined. (Py_TYPE): Ditto. * python/python.c (eval_python_command): Omit Py_FlushLine call if Python 3. Check return values of all Python API calls for error. Supply dummy "python" and "python-interactive" commands if Python initialization failed. (_initialize_python): Convert argc to wchar_t** if Python 3. Add module initialization for Python 3. (finish_python_initialization): Pass wchar_t * argument to PySys_SetPath if Python 3. * python/lib/gdb/__init__.py: Define "reload" if Python 3. (_GdbFile): New class for common output file behavior. (GdbOutFile): Subclass from _GdbFile. (GdbOutputErrorFile): Ditto. (auto_load_packages): Adjust syntax for Python 3 compatibility. * python/lib/gdb/printing.py: Define basestr and int if Python 3. * python/lib/gdb/prompt.py: Use sorted() function rather than sort() method. * python/lib/gdb/command/explore.py: Define raw_input if Python 3. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/pretty_printers.py: Use sorted() function rather than sort() method. Adjust syntax for Python 3 compatibility. * python/lib/gdb/command/type_printers.py: Ditto. * doc/gdb.texinfo (Inferior.read_memory): Mention that the return value is a memoryview object if Python 3.
2012-12-12 17:47:30 +01:00
PyVarObject_HEAD_INIT (NULL, 0)
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"gdb.EventRegistry", /* tp_name */
sizeof (eventregistry_object), /* tp_basicsize */
0, /* tp_itemsize */
evregpy_dealloc, /* tp_dealloc */
0, /* tp_print */
0, /* tp_getattr */
0, /* tp_setattr */
0, /* tp_compare */
0, /* tp_repr */
0, /* tp_as_number */
0, /* tp_as_sequence */
0, /* tp_as_mapping */
0, /* tp_hash */
0, /* tp_call */
0, /* tp_str */
0, /* tp_getattro */
0, /* tp_setattro */
0, /* tp_as_buffer */
Py_TPFLAGS_DEFAULT, /* tp_flags */
"GDB event registry object", /* tp_doc */
0, /* tp_traverse */
0, /* tp_clear */
0, /* tp_richcompare */
0, /* tp_weaklistoffset */
0, /* tp_iter */
0, /* tp_iternext */
eventregistry_object_methods, /* tp_methods */
0, /* tp_members */
0, /* tp_getset */
0, /* tp_base */
0, /* tp_dict */
0, /* tp_descr_get */
0, /* tp_descr_set */
0, /* tp_dictoffset */
0, /* tp_init */
0 /* tp_alloc */
};