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28 | |
29 | #include <QtCore/QCoreApplication> |
30 | #include <QtCore/QProcess> |
31 | #include <QtCore/QThread> |
32 | #include <QtTest> |
33 | |
34 | class tst_QProcessNoApplication : public QObject |
35 | { |
36 | Q_OBJECT |
37 | |
38 | private Q_SLOTS: |
39 | void initializationDeadlock(); |
40 | }; |
41 | |
42 | void tst_QProcessNoApplication::initializationDeadlock() |
43 | { |
44 | // see QTBUG-27260 |
45 | // QProcess on Unix uses (or used to, at the time of the writing of this test) |
46 | // a global class called QProcessManager. |
47 | // This class is instantiated (or was) only in the main thread, which meant that |
48 | // blocking the main thread while waiting for QProcess could mean a deadlock. |
49 | |
50 | struct MyThread : public QThread |
51 | { |
52 | void run() |
53 | { |
54 | // what we execute does not matter, as long as we try to |
55 | // and that the process exits |
56 | QProcess::execute(command: "true" ); |
57 | } |
58 | }; |
59 | |
60 | char *argv[] = { const_cast<char*>(QTest::currentAppName()), 0 }; |
61 | int argc = 1; |
62 | QCoreApplication app(argc, argv); |
63 | MyThread thread; |
64 | thread.start(); |
65 | QVERIFY(thread.wait(10000)); |
66 | } |
67 | |
68 | QTEST_APPLESS_MAIN(tst_QProcessNoApplication) |
69 | |
70 | #include "tst_qprocessnoapplication.moc" |
71 | |