296 lines
9.7 KiB
Java
296 lines
9.7 KiB
Java
/*
|
||
* Copyright (c) 2019, 2024, Oracle and/or its affiliates. All rights reserved.
|
||
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
||
*
|
||
* This code is free software; you can redistribute it and/or modify it
|
||
* under the terms of the GNU General Public License version 2 only, as
|
||
* published by the Free Software Foundation.
|
||
*
|
||
* This code is distributed in the hope that it will be useful, but WITHOUT
|
||
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
||
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
||
* version 2 for more details (a copy is included in the LICENSE file that
|
||
* accompanied this code).
|
||
*
|
||
* You should have received a copy of the GNU General Public License version
|
||
* 2 along with this work; if not, write to the Free Software Foundation,
|
||
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
||
*
|
||
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
||
* or visit www.oracle.com if you need additional information or have any
|
||
* questions.
|
||
*/
|
||
|
||
/* @test
|
||
* @bug 8227609 8233451
|
||
* @summary Test of InputStream and OutputStream created by java.nio.file.Files
|
||
* @library .. /test/lib
|
||
* @build jdk.test.lib.Platform
|
||
* @run junit/othervm --enable-native-access=ALL-UNNAMED InputStreamTest
|
||
*/
|
||
|
||
import java.io.FileInputStream;
|
||
import java.io.FileOutputStream;
|
||
import java.io.InputStream;
|
||
import java.io.IOException;
|
||
import java.io.OutputStream;
|
||
import java.lang.foreign.Arena;
|
||
import java.lang.foreign.FunctionDescriptor;
|
||
import java.lang.foreign.Linker;
|
||
import java.lang.foreign.MemorySegment;
|
||
import java.lang.foreign.SymbolLookup;
|
||
import java.lang.foreign.ValueLayout;
|
||
import java.lang.invoke.MethodHandle;
|
||
import java.nio.channels.ClosedChannelException;
|
||
import java.nio.file.Files;
|
||
import java.nio.file.Path;
|
||
import java.util.Arrays;
|
||
import jdk.test.lib.Platform;
|
||
|
||
import org.junit.jupiter.api.AfterAll;
|
||
import org.junit.jupiter.api.BeforeAll;
|
||
import org.junit.jupiter.api.Test;
|
||
import org.junit.jupiter.api.condition.DisabledOnOs;
|
||
import org.junit.jupiter.api.condition.OS;
|
||
import static org.junit.jupiter.api.Assertions.*;
|
||
|
||
public class InputStreamTest {
|
||
|
||
private static final String PIPE = "pipe";
|
||
private static final Path PIPE_PATH = Path.of(PIPE);
|
||
private static final String SENTENCE =
|
||
"Tout est permis mais rien n’est possible";
|
||
|
||
private static Path TMPDIR;
|
||
|
||
private static class mkfifo {
|
||
public static final FunctionDescriptor DESC = FunctionDescriptor.of(
|
||
ValueLayout.JAVA_INT,
|
||
ValueLayout.ADDRESS,
|
||
ValueLayout.JAVA_SHORT
|
||
);
|
||
|
||
public static final MemorySegment ADDR;
|
||
static {
|
||
Linker linker = Linker.nativeLinker();
|
||
SymbolLookup stdlib = linker.defaultLookup();
|
||
ADDR = stdlib.find("mkfifo").orElseThrow();
|
||
}
|
||
|
||
public static final MethodHandle HANDLE =
|
||
Linker.nativeLinker().downcallHandle(ADDR, DESC);
|
||
}
|
||
|
||
public static int mkfifo(MemorySegment x0, short x1) {
|
||
var mh$ = mkfifo.HANDLE;
|
||
try {
|
||
return (int)mh$.invokeExact(x0, x1);
|
||
} catch (Throwable ex$) {
|
||
throw new AssertionError("should not reach here", ex$);
|
||
}
|
||
}
|
||
|
||
private static Thread createWriteThread() {
|
||
Thread t = new Thread(
|
||
new Runnable() {
|
||
public void run() {
|
||
try (FileOutputStream fos = new FileOutputStream(PIPE);) {
|
||
fos.write(SENTENCE.getBytes());
|
||
} catch (IOException e) {
|
||
throw new RuntimeException(e);
|
||
}
|
||
}
|
||
}
|
||
);
|
||
t.start();
|
||
return t;
|
||
}
|
||
|
||
@BeforeAll
|
||
static void before() throws InterruptedException, IOException {
|
||
TMPDIR = TestUtil.createTemporaryDirectory();
|
||
|
||
if (Platform.isWindows())
|
||
return;
|
||
|
||
Files.deleteIfExists(PIPE_PATH);
|
||
try (var newArena = Arena.ofConfined()) {
|
||
var addr = newArena.allocateFrom(PIPE);
|
||
short mode = 0666;
|
||
assertEquals(0, mkfifo(addr, mode));
|
||
}
|
||
if (Files.notExists(PIPE_PATH))
|
||
throw new RuntimeException("Failed to create " + PIPE);
|
||
}
|
||
|
||
@AfterAll
|
||
static void after() throws IOException {
|
||
TestUtil.removeAll(TMPDIR);
|
||
|
||
if (Platform.isWindows())
|
||
return;
|
||
|
||
Files.deleteIfExists(PIPE_PATH);
|
||
}
|
||
|
||
/**
|
||
* Tests Files.newInputStream(Path).skip().
|
||
*/
|
||
@Test
|
||
void skip() throws IOException {
|
||
Path file = Files.createFile(TMPDIR.resolve("foo"));
|
||
try (OutputStream out = Files.newOutputStream(file)) {
|
||
final int size = 512;
|
||
byte[] blah = new byte[size];
|
||
for (int i = 0; i < size; i++) {
|
||
blah[i] = (byte)(i % 128);
|
||
}
|
||
out.write(blah);
|
||
out.close();
|
||
|
||
try (InputStream in = Files.newInputStream(file)) {
|
||
assertTrue(in.available() == size);
|
||
assertTrue(in.skip(size/4) == size/4); // 0.25
|
||
assertTrue(in.available() == 3*size/4);
|
||
|
||
int b = in.read();
|
||
assertTrue(b == blah[size/4]);
|
||
assertTrue(in.available() == 3*size/4 - 1);
|
||
assertTrue(in.skip(-1) == -1); // 0.25
|
||
assertTrue(in.available() == 3*size/4);
|
||
|
||
assertTrue(in.skip(-size/2) == -size/4); // 0
|
||
assertTrue(in.available() == size);
|
||
|
||
assertTrue(in.skip(5*size/4) == size); // 1.0
|
||
assertTrue(in.available() == 0);
|
||
|
||
assertTrue(in.skip(-3*size/4) == -3*size/4); // 0.25
|
||
assertTrue(in.available() == 3*size/4);
|
||
|
||
byte[] buf = new byte[16];
|
||
in.read(buf, 2, 12);
|
||
assertTrue(Arrays.equals(buf, 2, 14,
|
||
blah, size/4, size/4 + 12));
|
||
assertTrue(in.skip(-12) == -12); // 0.25
|
||
|
||
assertTrue(in.skip(3*size/4) == 3*size/4); // 1.0
|
||
assertTrue(in.available() == 0);
|
||
|
||
assertTrue(in.skip(-size/2) == -size/2); // 0.5
|
||
assertTrue(in.available() == size/2);
|
||
|
||
assertTrue(in.skip(-size) == -size/2); // 0
|
||
assertTrue(in.available() == size);
|
||
|
||
assertTrue(in.skip(size/2) == size/2); // 0.5
|
||
assertTrue(in.available() == size/2);
|
||
|
||
assertTrue(in.skip(Long.MIN_VALUE) == -size/2); // 0
|
||
assertTrue(in.available() == size);
|
||
|
||
assertTrue(in.skip(size/2) == size/2); // 0.5
|
||
assertTrue(in.available() == size/2);
|
||
|
||
assertTrue(in.skip(Long.MAX_VALUE - size/4) == size/2);
|
||
assertTrue(in.available() == 0);
|
||
|
||
in.close();
|
||
try {
|
||
in.skip(1);
|
||
throw new RuntimeException("skip() did not fail");
|
||
} catch (IOException ioe) {
|
||
if (!(ioe instanceof ClosedChannelException)) {
|
||
throw new RuntimeException
|
||
("IOException is not a ClosedChannelException");
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Tests that Files.newInputStream(Path).available() does not throw
|
||
*/
|
||
@Test
|
||
@DisabledOnOs(OS.WINDOWS)
|
||
void availableStdin() throws IOException {
|
||
Path stdin = Path.of("/dev", "stdin");
|
||
if (Files.exists(stdin)) {
|
||
try (InputStream s = Files.newInputStream(stdin);) {
|
||
s.available();
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Tests that Files.newInputStream(Path).skip(0) does not throw
|
||
*/
|
||
@Test
|
||
@DisabledOnOs(OS.WINDOWS)
|
||
void skipStdin() throws IOException {
|
||
Path stdin = Path.of("/dev", "stdin");
|
||
if (Files.exists(stdin)) {
|
||
try (InputStream s = Files.newInputStream(stdin);) {
|
||
s.skip(0);
|
||
}
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Tests Files.newInputStream(Path).readAllBytes().
|
||
*/
|
||
@Test
|
||
@DisabledOnOs(OS.WINDOWS)
|
||
void readAllBytes() throws InterruptedException, IOException {
|
||
Thread t = createWriteThread();
|
||
try (InputStream in = Files.newInputStream(Path.of(PIPE))) {
|
||
String s = new String(in.readAllBytes());
|
||
System.out.println(s);
|
||
assertEquals(SENTENCE, s);
|
||
} finally {
|
||
t.join();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Tests Files.newInputStream(Path).readNBytes(byte[],int,int).
|
||
*/
|
||
@Test
|
||
@DisabledOnOs(OS.WINDOWS)
|
||
void readNBytesNoOverride() throws InterruptedException, IOException {
|
||
Thread t = createWriteThread();
|
||
try (InputStream in = Files.newInputStream(Path.of(PIPE))) {
|
||
final int offset = 11;
|
||
final int length = 17;
|
||
assert length <= SENTENCE.length();
|
||
byte[] b = new byte[offset + length];
|
||
int n = in.readNBytes(b, offset, length);
|
||
String s = new String(b, offset, length);
|
||
System.out.println(s);
|
||
assertEquals(SENTENCE.substring(0, length), s);
|
||
} finally {
|
||
t.join();
|
||
}
|
||
}
|
||
|
||
/**
|
||
* Tests Files.newInputStream(Path).readNBytes(int).
|
||
*/
|
||
@Test
|
||
@DisabledOnOs(OS.WINDOWS)
|
||
void readNBytesOverride() throws InterruptedException, IOException {
|
||
Thread t = createWriteThread();
|
||
try (InputStream in = Files.newInputStream(Path.of(PIPE))) {
|
||
final int length = 17;
|
||
assert length <= SENTENCE.length();
|
||
byte[] b = in.readNBytes(length);
|
||
String s = new String(b);
|
||
System.out.println(s);
|
||
assertEquals(SENTENCE.substring(0, length), s);
|
||
} finally {
|
||
t.join();
|
||
}
|
||
}
|
||
}
|