| 1 | /* Python interface to new object file loading events. |
| 2 | |
| 3 | Copyright (C) 2011-2017 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 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. |
| 11 | |
| 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. |
| 16 | |
| 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/>. */ |
| 19 | |
| 20 | #include "defs.h" |
| 21 | #include "py-event.h" |
| 22 | |
| 23 | extern PyTypeObject new_objfile_event_object_type |
| 24 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object"); |
| 25 | extern PyTypeObject clear_objfiles_event_object_type |
| 26 | CPYCHECKER_TYPE_OBJECT_FOR_TYPEDEF ("event_object"); |
| 27 | |
| 28 | static PyObject * |
| 29 | create_new_objfile_event_object (struct objfile *objfile) |
| 30 | { |
| 31 | PyObject *objfile_event; |
| 32 | PyObject *py_objfile; |
| 33 | |
| 34 | objfile_event = create_event_object (&new_objfile_event_object_type); |
| 35 | if (!objfile_event) |
| 36 | goto fail; |
| 37 | |
| 38 | /* Note that objfile_to_objfile_object returns a borrowed reference, |
| 39 | so we don't need a decref here. */ |
| 40 | py_objfile = objfile_to_objfile_object (objfile); |
| 41 | if (!py_objfile || evpy_add_attribute (objfile_event, |
| 42 | "new_objfile", |
| 43 | py_objfile) < 0) |
| 44 | goto fail; |
| 45 | |
| 46 | return objfile_event; |
| 47 | |
| 48 | fail: |
| 49 | Py_XDECREF (objfile_event); |
| 50 | return NULL; |
| 51 | } |
| 52 | |
| 53 | /* Callback function which notifies observers when a new objfile event occurs. |
| 54 | This function will create a new Python new_objfile event object. |
| 55 | Return -1 if emit fails. */ |
| 56 | |
| 57 | int |
| 58 | emit_new_objfile_event (struct objfile *objfile) |
| 59 | { |
| 60 | PyObject *event; |
| 61 | |
| 62 | if (evregpy_no_listeners_p (gdb_py_events.new_objfile)) |
| 63 | return 0; |
| 64 | |
| 65 | event = create_new_objfile_event_object (objfile); |
| 66 | if (event) |
| 67 | return evpy_emit_event (event, gdb_py_events.new_objfile); |
| 68 | return -1; |
| 69 | } |
| 70 | |
| 71 | GDBPY_NEW_EVENT_TYPE (new_objfile, |
| 72 | "gdb.NewObjFileEvent", |
| 73 | "NewObjFileEvent", |
| 74 | "GDB new object file event object", |
| 75 | event_object_type); |
| 76 | \f |
| 77 | /* Subroutine of emit_clear_objfiles_event to simplify it. */ |
| 78 | |
| 79 | static PyObject * |
| 80 | create_clear_objfiles_event_object (void) |
| 81 | { |
| 82 | PyObject *objfile_event; |
| 83 | PyObject *py_progspace; |
| 84 | |
| 85 | objfile_event = create_event_object (&clear_objfiles_event_object_type); |
| 86 | if (!objfile_event) |
| 87 | goto fail; |
| 88 | |
| 89 | /* Note that pspace_to_pspace_object returns a borrowed reference, |
| 90 | so we don't need a decref here. */ |
| 91 | py_progspace = pspace_to_pspace_object (current_program_space); |
| 92 | if (!py_progspace || evpy_add_attribute (objfile_event, |
| 93 | "progspace", |
| 94 | py_progspace) < 0) |
| 95 | goto fail; |
| 96 | |
| 97 | return objfile_event; |
| 98 | |
| 99 | fail: |
| 100 | Py_XDECREF (objfile_event); |
| 101 | return NULL; |
| 102 | } |
| 103 | |
| 104 | /* Callback function which notifies observers when the "clear objfiles" |
| 105 | event occurs. |
| 106 | This function will create a new Python clear_objfiles event object. |
| 107 | Return -1 if emit fails. */ |
| 108 | |
| 109 | int |
| 110 | emit_clear_objfiles_event (void) |
| 111 | { |
| 112 | PyObject *event; |
| 113 | |
| 114 | if (evregpy_no_listeners_p (gdb_py_events.clear_objfiles)) |
| 115 | return 0; |
| 116 | |
| 117 | event = create_clear_objfiles_event_object (); |
| 118 | if (event) |
| 119 | return evpy_emit_event (event, gdb_py_events.clear_objfiles); |
| 120 | return -1; |
| 121 | } |
| 122 | |
| 123 | GDBPY_NEW_EVENT_TYPE (clear_objfiles, |
| 124 | "gdb.ClearObjFilesEvent", |
| 125 | "ClearObjFilesEvent", |
| 126 | "GDB clear object files event object", |
| 127 | event_object_type); |