1 | /* |
2 | * qca_safeobj.h - Qt Cryptographic Architecture |
3 | * Copyright (C) 2008 Justin Karneges <justin@affinix.com> |
4 | * |
5 | * This library is free software; you can redistribute it and/or |
6 | * modify it under the terms of the GNU Lesser General Public |
7 | * License as published by the Free Software Foundation; either |
8 | * version 2.1 of the License, or (at your option) any later version. |
9 | * |
10 | * This library is distributed in the hope that it will be useful, |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
13 | * Lesser General Public License for more details. |
14 | * |
15 | * You should have received a copy of the GNU Lesser General Public |
16 | * License along with this library; if not, write to the Free Software |
17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
18 | * 02110-1301 USA |
19 | * |
20 | */ |
21 | |
22 | #include "qca_safeobj.h" |
23 | |
24 | namespace QCA { |
25 | |
26 | // This function performs the following steps: |
27 | // obj->disconnect(owner); // to prevent future signals to owner |
28 | // obj->setParent(0); // to prevent delete if parent is deleted |
29 | // obj->deleteLater(); // now we can forget about the object |
30 | inline void releaseAndDeleteLater(QObject *owner, QObject *obj) |
31 | { |
32 | obj->disconnect(receiver: owner); |
33 | obj->setParent(nullptr); |
34 | obj->deleteLater(); |
35 | } |
36 | |
37 | SafeSocketNotifier::SafeSocketNotifier(qintptr socket, QSocketNotifier::Type type, QObject *parent) |
38 | : QObject(parent) |
39 | { |
40 | sn = new QSocketNotifier(socket, type, this); |
41 | connect(sender: sn, signal: &QSocketNotifier::activated, context: this, slot: &SafeSocketNotifier::activated); |
42 | } |
43 | |
44 | SafeSocketNotifier::~SafeSocketNotifier() |
45 | { |
46 | sn->setEnabled(false); |
47 | releaseAndDeleteLater(owner: this, obj: sn); |
48 | } |
49 | |
50 | } |
51 | |