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// Copyright (C) 2016 The Qt Company Ltd.
// Copyright (C) 2022 Intel Corporation.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
#include <QTest>
#if QT_CONFIG(process)
#include <QProcess>
#endif
#include <QtCore/QList>
#include <QtCore/QSystemSemaphore>
#include <QtCore/QTemporaryDir>
#include "../ipctestcommon.h"
#define HELPERWAITTIME 10000
using namespace Qt::StringLiterals;
class tst_QSystemSemaphore : public QObject
{
Q_OBJECT
public:
tst_QSystemSemaphore();
QString mangleKey(QStringView key)
{
if (key.isEmpty())
return key.toString();
return u"tstsyssem_%1-%2_%3"_s.arg(QCoreApplication::applicationPid())
.arg(seq).arg(key);
}
QNativeIpcKey platformSafeKey(const QString &key)
{
QFETCH_GLOBAL(QNativeIpcKey::Type, keyType);
return QSystemSemaphore::platformSafeKey(mangleKey(key), keyType);
}
public Q_SLOTS:
void initTestCase();
void init();
void cleanup();
private slots:
void nativeKey_data();
void nativeKey();
void legacyKey_data() { nativeKey_data(); }
void legacyKey();
void changeKeyType();
void basicacquire();
void complexacquire();
void release();
void twoSemaphores();
void basicProcesses();
void processes_data();
void processes();
void undo();
void initialValue();
private:
int seq = 0;
QSystemSemaphore *existingLock;
const QString m_helperBinary;
};
tst_QSystemSemaphore::tst_QSystemSemaphore()
: m_helperBinary("./acquirerelease_helper")
{
}
void tst_QSystemSemaphore::initTestCase()
{
IpcTestCommon::addGlobalTestRows<QSystemSemaphore>();
}
void tst_QSystemSemaphore::init()
{
QNativeIpcKey key = platformSafeKey("existing");
existingLock = new QSystemSemaphore(key, 1, QSystemSemaphore::Create);
}
void tst_QSystemSemaphore::cleanup()
{
delete existingLock;
++seq;
}
void tst_QSystemSemaphore::nativeKey_data()
{
QTest::addColumn<QString>("constructorKey");
QTest::addColumn<QString>("setKey");
QTest::newRow("null, null") << QString() << QString();
QTest::newRow("null, one") << QString() << QString("one");
QTest::newRow("one, two") << QString("one") << QString("two");
}
/*!
Basic key testing
*/
void tst_QSystemSemaphore::nativeKey()
{
QFETCH(QString, constructorKey);
QFETCH(QString, setKey);
QNativeIpcKey constructorIpcKey = platformSafeKey(constructorKey);
QNativeIpcKey setIpcKey = platformSafeKey(setKey);
QSystemSemaphore sem(constructorIpcKey);
QCOMPARE(sem.nativeIpcKey(), constructorIpcKey);
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
sem.setNativeKey(setIpcKey);
QCOMPARE(sem.nativeIpcKey(), setIpcKey);
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
// change the key type
QNativeIpcKey::Type nextKeyType = IpcTestCommon::nextKeyType(setIpcKey.type());
if (nextKeyType != setIpcKey.type()) {
QNativeIpcKey setIpcKey2 = QSystemSemaphore::platformSafeKey(setKey, nextKeyType);
sem.setNativeKey(setIpcKey2);
QCOMPARE(sem.nativeIpcKey(), setIpcKey2);
}
}
QT_WARNING_PUSH
QT_WARNING_DISABLE_DEPRECATED
void tst_QSystemSemaphore::legacyKey()
{
QFETCH(QString, constructorKey);
QFETCH(QString, setKey);
QSystemSemaphore sem(constructorKey);
QCOMPARE(sem.key(), constructorKey);
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
sem.setKey(setKey);
QCOMPARE(sem.key(), setKey);
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
}
QT_WARNING_POP
void tst_QSystemSemaphore::changeKeyType()
{
QString keyName = "changeKeyType";
QNativeIpcKey key = platformSafeKey(keyName);
QNativeIpcKey otherKey =
QSystemSemaphore::platformSafeKey(mangleKey(keyName), IpcTestCommon::nextKeyType(key.type()));
if (key == otherKey)
QSKIP("System only supports one key type");
QSystemSemaphore sem1(key, 1, QSystemSemaphore::Create);
QSystemSemaphore sem2(otherKey);
sem1.setNativeKey(otherKey);
sem2.setNativeKey(key);
}
void tst_QSystemSemaphore::basicacquire()
{
QNativeIpcKey key = platformSafeKey("basicacquire");
QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
}
void tst_QSystemSemaphore::complexacquire()
{
QNativeIpcKey key = platformSafeKey("complexacquire");
QSystemSemaphore sem(key, 2, QSystemSemaphore::Create);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
}
void tst_QSystemSemaphore::release()
{
QNativeIpcKey key = platformSafeKey("release");
QSystemSemaphore sem(key, 0, QSystemSemaphore::Create);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.acquire());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QVERIFY(sem.release());
QCOMPARE(sem.error(), QSystemSemaphore::NoError);
QCOMPARE(sem.errorString(), QString());
}
void tst_QSystemSemaphore::twoSemaphores()
{
QNativeIpcKey key = platformSafeKey("twoSemaphores");
QSystemSemaphore sem1(key, 1, QSystemSemaphore::Create);
QSystemSemaphore sem2(key);
QVERIFY(sem1.acquire());
QVERIFY(sem2.release());
QVERIFY(sem1.acquire());
QVERIFY(sem2.release());
}
void tst_QSystemSemaphore::basicProcesses()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QNativeIpcKey key = platformSafeKey("store");
QSystemSemaphore sem(key, 0, QSystemSemaphore::Create);
QProcess acquire;
acquire.setProcessChannelMode(QProcess::ForwardedChannels);
QProcess release;
release.setProcessChannelMode(QProcess::ForwardedChannels);
acquire.start(m_helperBinary, { "acquire", key.toString() });
QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
QCOMPARE(acquire.state(), QProcess::Running);
acquire.kill();
release.start(m_helperBinary, { "release", key.toString() });
QVERIFY2(release.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
release.waitForFinished(HELPERWAITTIME);
QCOMPARE(acquire.state(), QProcess::NotRunning);
#endif
}
void tst_QSystemSemaphore::processes_data()
{
QTest::addColumn<int>("processes");
for (int i = 0; i < 5; ++i) {
QTest::addRow("1 process (%d)", i) << 1;
QTest::addRow("3 process (%d)", i) << 3;
QTest::addRow("10 process (%d)", i) << 10;
}
}
void tst_QSystemSemaphore::processes()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QNativeIpcKey key = platformSafeKey("store");
QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
QFETCH(int, processes);
QList<QString> scripts(processes, "acquirerelease");
QList<QProcess*> consumers;
for (int i = 0; i < scripts.size(); ++i) {
QProcess *p = new QProcess;
p->setProcessChannelMode(QProcess::ForwardedChannels);
consumers.append(p);
p->start(m_helperBinary, { scripts.at(i), key.toString() });
}
while (!consumers.isEmpty()) {
consumers.first()->waitForFinished();
QCOMPARE(consumers.first()->exitStatus(), QProcess::NormalExit);
QCOMPARE(consumers.first()->exitCode(), 0);
delete consumers.takeFirst();
}
#endif
}
void tst_QSystemSemaphore::undo()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QNativeIpcKey key = platformSafeKey("store");
switch (key.type()) {
case QNativeIpcKey::Type::PosixRealtime:
case QNativeIpcKey::Type::Windows:
QSKIP("This test only checks a System V behavior.");
case QNativeIpcKey::Type::SystemV:
break;
}
QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
QStringList acquireArguments = { "acquire", key.toString() };
QProcess acquire;
acquire.setProcessChannelMode(QProcess::ForwardedChannels);
acquire.start(m_helperBinary, acquireArguments);
QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
QVERIFY(acquire.state()== QProcess::NotRunning);
// At process exit the kernel should auto undo
acquire.start(m_helperBinary, acquireArguments);
QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
QVERIFY(acquire.state()== QProcess::NotRunning);
#endif
}
void tst_QSystemSemaphore::initialValue()
{
#if !QT_CONFIG(process)
QSKIP("No qprocess support", SkipAll);
#else
QNativeIpcKey key = platformSafeKey("store");
QSystemSemaphore sem(key, 1, QSystemSemaphore::Create);
QStringList acquireArguments = { "acquire", key.toString() };
QStringList releaseArguments = { "release", key.toString() };
QProcess acquire;
acquire.setProcessChannelMode(QProcess::ForwardedChannels);
QProcess release;
release.setProcessChannelMode(QProcess::ForwardedChannels);
acquire.start(m_helperBinary, acquireArguments);
QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
QVERIFY(acquire.state()== QProcess::NotRunning);
acquire.start(m_helperBinary, acquireArguments << QLatin1String("2"));
QVERIFY2(acquire.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
QVERIFY(acquire.state()== QProcess::Running);
acquire.kill();
release.start(m_helperBinary, releaseArguments);
QVERIFY2(release.waitForStarted(), "Could not start helper binary");
acquire.waitForFinished(HELPERWAITTIME);
release.waitForFinished(HELPERWAITTIME);
QVERIFY(acquire.state()== QProcess::NotRunning);
#endif
}
QTEST_MAIN(tst_QSystemSemaphore)
#include "tst_qsystemsemaphore.moc"
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