File: tst_qprocessnoapplication.cpp

package info (click to toggle)
qtbase-opensource-src 5.15.17%2Bdfsg-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental
  • size: 351,148 kB
  • sloc: cpp: 2,097,620; ansic: 343,242; xml: 115,491; python: 9,447; java: 7,499; asm: 4,023; sh: 2,090; perl: 2,047; yacc: 1,687; lex: 1,333; javascript: 878; makefile: 271; objc: 70
file content (70 lines) | stat: -rw-r--r-- 2,412 bytes parent folder | download | duplicates (10)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
/****************************************************************************
**
** Copyright (C) 2016 Intel Corporation.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#include <QtCore/QCoreApplication>
#include <QtCore/QProcess>
#include <QtCore/QThread>
#include <QtTest>

class tst_QProcessNoApplication : public QObject
{
    Q_OBJECT

private Q_SLOTS:
    void initializationDeadlock();
};

void tst_QProcessNoApplication::initializationDeadlock()
{
    // see QTBUG-27260
    // QProcess on Unix uses (or used to, at the time of the writing of this test)
    // a global class called QProcessManager.
    // This class is instantiated (or was) only in the main thread, which meant that
    // blocking the main thread while waiting for QProcess could mean a deadlock.

    struct MyThread : public QThread
    {
        void run()
        {
            // what we execute does not matter, as long as we try to
            // and that the process exits
            QProcess::execute("true");
        }
    };

    char *argv[] = { const_cast<char*>(QTest::currentAppName()), 0 };
    int argc = 1;
    QCoreApplication app(argc, argv);
    MyThread thread;
    thread.start();
    QVERIFY(thread.wait(10000));
}

QTEST_APPLESS_MAIN(tst_QProcessNoApplication)

#include "tst_qprocessnoapplication.moc"