File indexing completed on 2024-11-10 04:56:24

 /*
     KWin - the KDE window manager
     This file is part of the KDE project.
 
     SPDX-FileCopyrightText: 2022 MBition GmbH
     SPDX-FileContributor: Kai Uwe Broulik <kai_uwe.broulik@mbition.io>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include <config-kwin.h>
 
 #include <sys/mman.h>
 #include <unistd.h>
 
 #include "utils/ramfile.h"
 
 #include <QTest>
 
 using namespace KWin;
 
 class TestUtils : public QObject
 {
     Q_OBJECT
 private Q_SLOTS:
     void testRamFile();
     void testSealedRamFile();
 };
 
 static const QByteArray s_testByteArray = QByteArrayLiteral("Test Data \0\1\2\3");
 static const char s_writeTestArray[] = "test";
 
 void TestUtils::testRamFile()
 {
     KWin::RamFile file("test", s_testByteArray.constData(), s_testByteArray.size());
     QVERIFY(file.isValid());
     QCOMPARE(file.size(), s_testByteArray.size());
 
     QVERIFY(file.fd() != -1);
 
     char buf[20];
     int num = read(file.fd(), buf, sizeof buf);
     QCOMPARE(num, file.size());
 
     QCOMPARE(qstrcmp(s_testByteArray.constData(), buf), 0);
 }
 
 void TestUtils::testSealedRamFile()
 {
 #if HAVE_MEMFD
     KWin::RamFile file("test", s_testByteArray.constData(), s_testByteArray.size(), KWin::RamFile::Flag::SealWrite);
     QVERIFY(file.isValid());
     QVERIFY(file.effectiveFlags().testFlag(KWin::RamFile::Flag::SealWrite));
 
     // Writing should not work.
     auto written = write(file.fd(), s_writeTestArray, strlen(s_writeTestArray));
     QCOMPARE(written, -1);
 
     // Cannot use MAP_SHARED on sealed file descriptor.
     void *data = mmap(nullptr, file.size(), PROT_WRITE, MAP_SHARED, file.fd(), 0);
     QCOMPARE(data, MAP_FAILED);
 
     data = mmap(nullptr, file.size(), PROT_WRITE, MAP_PRIVATE, file.fd(), 0);
     QVERIFY(data != MAP_FAILED);
 #else
     QSKIP("Sealing requires memfd suport.");
 #endif
 }
 
 QTEST_MAIN(TestUtils)
 #include "test_utils.moc"