| // Copyright (c) 2022, the R8 project authors. Please see the AUTHORS file |
| // for details. All rights reserved. Use of this source code is governed by a |
| // BSD-style license that can be found in the LICENSE file. |
| |
| package com.android.tools.r8.desugar.desugaredlibrary.jdk11; |
| |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification.DEFAULT_SPECIFICATIONS; |
| import static com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification.JDK11_PATH; |
| |
| import com.android.tools.r8.TestParameters; |
| import com.android.tools.r8.TestRuntime.CfVm; |
| import com.android.tools.r8.ToolHelper; |
| import com.android.tools.r8.ToolHelper.DexVm.Version; |
| import com.android.tools.r8.desugar.desugaredlibrary.DesugaredLibraryTestBase; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.CompilationSpecification; |
| import com.android.tools.r8.desugar.desugaredlibrary.test.LibraryDesugaringSpecification; |
| import com.android.tools.r8.utils.StringUtils; |
| import com.google.common.collect.ImmutableList; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.nio.channels.FileChannel; |
| import java.nio.channels.FileLock; |
| import java.nio.charset.StandardCharsets; |
| import java.nio.file.Files; |
| import java.nio.file.Path; |
| import java.nio.file.StandardOpenOption; |
| import java.util.List; |
| import org.junit.Assume; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| import org.junit.runners.Parameterized.Parameters; |
| |
| @RunWith(Parameterized.class) |
| public class FileLockTest extends DesugaredLibraryTestBase { |
| |
| private static final String EXPECTED_RESULT = |
| StringUtils.lines( |
| "true", |
| "true", |
| "pos:2;sz:7;sh:false", |
| "true", |
| "true", |
| "true", |
| "pos:2;sz:7;sh:false", |
| "false", |
| "true", |
| "true", |
| "pos:2;sz:7;sh:false", |
| "true"); |
| |
| private final TestParameters parameters; |
| private final LibraryDesugaringSpecification libraryDesugaringSpecification; |
| private final CompilationSpecification compilationSpecification; |
| |
| @Parameters(name = "{0}, spec: {1}, {2}") |
| public static List<Object[]> data() { |
| return buildParameters( |
| // Skip Android 4.4.4 due to missing libjavacrypto. |
| getTestParameters() |
| .withCfRuntime(CfVm.JDK11) |
| .withDexRuntime(Version.V4_0_4) |
| .withDexRuntimesStartingFromIncluding(Version.V5_1_1) |
| .withAllApiLevels() |
| .build(), |
| ImmutableList.of(JDK11_PATH), |
| DEFAULT_SPECIFICATIONS); |
| } |
| |
| public FileLockTest( |
| TestParameters parameters, |
| LibraryDesugaringSpecification libraryDesugaringSpecification, |
| CompilationSpecification compilationSpecification) { |
| this.parameters = parameters; |
| this.libraryDesugaringSpecification = libraryDesugaringSpecification; |
| this.compilationSpecification = compilationSpecification; |
| } |
| |
| @Test |
| public void test() throws Throwable { |
| if (parameters.isCfRuntime()) { |
| // Reference runtime, we use Jdk 11 since this is Jdk 11 desugared library, not that Jdk 8 |
| // behaves differently on this test. |
| Assume.assumeTrue(parameters.isCfRuntime(CfVm.JDK11) && !ToolHelper.isWindows()); |
| testForJvm() |
| .addInnerClasses(getClass()) |
| .run(parameters.getRuntime(), TestClass.class, "10000") |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| return; |
| } |
| testForDesugaredLibrary(parameters, libraryDesugaringSpecification, compilationSpecification) |
| .addInnerClasses(getClass()) |
| .addKeepMainRule(TestClass.class) |
| .compile() |
| .withArt6Plus64BitsLib() |
| .run( |
| parameters.getRuntime(), |
| TestClass.class, |
| String.valueOf(parameters.getApiLevel().getLevel())) |
| .assertSuccessWithOutput(EXPECTED_RESULT); |
| } |
| |
| public static class TestClass { |
| |
| private static int minApi; |
| |
| public static void main(String[] args) throws Throwable { |
| minApi = Integer.parseInt(args[0]); |
| appendTest(); |
| deleteTest(); |
| fosTest(); |
| } |
| |
| private static void checkChannel(FileChannel channel) throws IOException { |
| FileLock lock = channel.lock(2, 7, false); |
| System.out.println(lock.channel() == channel); |
| checkAcquiredBy(lock, channel); |
| System.out.println( |
| "pos:" + lock.position() + ";sz:" + lock.size() + ";sh:" + lock.isShared()); |
| lock.release(); |
| channel.close(); |
| } |
| |
| private static void checkAcquiredBy(FileLock lock, FileChannel channel) { |
| // The method acquiredBy was introduced in 24, we do not backport or check below. |
| if (minApi >= 24) { |
| System.out.println((lock.acquiredBy() == channel)); |
| } else { |
| System.out.println("true"); |
| } |
| } |
| |
| private static void appendTest() throws IOException { |
| Path tmpAppend = Files.createTempFile("tmp_append", ".txt"); |
| Files.write(tmpAppend, "There will be dragons!".getBytes(StandardCharsets.UTF_8)); |
| FileChannel appendChannel = |
| FileChannel.open(tmpAppend, StandardOpenOption.APPEND, StandardOpenOption.WRITE); |
| checkChannel(appendChannel); |
| System.out.println(Files.exists(tmpAppend)); |
| Files.delete(tmpAppend); |
| } |
| |
| private static void deleteTest() throws IOException { |
| Path tmpDelete = Files.createTempFile("tmp_delete", ".txt"); |
| Files.write(tmpDelete, "There will be dragons!".getBytes(StandardCharsets.UTF_8)); |
| FileChannel deleteChannel = |
| FileChannel.open(tmpDelete, StandardOpenOption.DELETE_ON_CLOSE, StandardOpenOption.WRITE); |
| checkChannel(deleteChannel); |
| System.out.println(Files.exists(tmpDelete)); |
| Files.deleteIfExists(tmpDelete); |
| } |
| |
| private static void fosTest() throws IOException { |
| Path tmpFOS = Files.createTempFile("tmp_fos", ".txt"); |
| Files.write(tmpFOS, "There will be dragons!".getBytes(StandardCharsets.UTF_8)); |
| FileOutputStream fileOutputStream = new FileOutputStream(tmpFOS.toFile()); |
| FileChannel fosChannel = fileOutputStream.getChannel(); |
| checkChannel(fosChannel); |
| System.out.println(Files.exists(tmpFOS)); |
| Files.delete(tmpFOS); |
| } |
| } |
| } |