author | alanb |
Sun, 15 Feb 2009 12:25:54 +0000 | |
changeset 2057 | 3acf8e5e2ca0 |
child 2594 | 3755ecdb395d |
permissions | -rw-r--r-- |
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/* |
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* Copyright 2008-2009 Sun Microsystems, Inc. All Rights Reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
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* CA 95054 USA or visit www.sun.com if you need additional information or |
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* have any questions. |
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*/ |
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|
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/* @test |
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* @bug 4607272 |
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* @summary Unit test for AsynchronousFileChannel |
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*/ |
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import java.nio.file.*; |
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import java.nio.channels.*; |
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import java.nio.ByteBuffer; |
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import java.io.File; |
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import java.io.IOException; |
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import java.util.*; |
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import java.util.concurrent.*; |
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import java.util.concurrent.atomic.AtomicReference; |
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import static java.nio.file.StandardOpenOption.*; |
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public class Basic { |
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|
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private static final Random rand = new Random(); |
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|
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public static void main(String[] args) throws IOException { |
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// create temporary file |
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File blah = File.createTempFile("blah", null); |
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blah.deleteOnExit(); |
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|
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final AsynchronousFileChannel ch = AsynchronousFileChannel |
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.open(blah.toPath(), READ, WRITE); |
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|
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// run tests |
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testUsingCompletionHandlers(ch); |
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testUsingWaitOnResult(ch); |
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testLocking(ch); |
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testInterruptHandlerThread(ch); |
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// close channel and invoke test that expects channel to be closed |
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ch.close(); |
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testClosedChannel(ch); |
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// these tests open the file themselves |
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testCustomThreadPool(blah.toPath()); |
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testAsynchronousClose(blah.toPath()); |
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testCancel(blah.toPath()); |
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testTruncate(blah.toPath()); |
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} |
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/* |
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* Generate buffer with random contents |
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* Writes buffer to file using a CompletionHandler to consume the result |
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* of each write operation |
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* Reads file to EOF to a new buffer using a CompletionHandler to consume |
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* the result of each read operation |
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* Compares buffer contents |
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*/ |
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static void testUsingCompletionHandlers(AsynchronousFileChannel ch) |
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throws IOException |
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{ |
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System.out.println("testUsingCompletionHandlers"); |
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ch.truncate(0L); |
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|
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// generate buffer with random elements and write it to file |
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ByteBuffer src = genBuffer(); |
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writeFully(ch, src, 0L); |
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|
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// read to EOF or buffer is full |
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ByteBuffer dst = (rand.nextBoolean()) ? |
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ByteBuffer.allocateDirect(src.capacity()) : |
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ByteBuffer.allocate(src.capacity()); |
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readAll(ch, dst, 0L); |
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|
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// check buffers are the same |
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src.flip(); |
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dst.flip(); |
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if (!src.equals(dst)) { |
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throw new RuntimeException("Contents differ"); |
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} |
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} |
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|
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/* |
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* Generate buffer with random contents |
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* Writes buffer to file, invoking the Future's get method to wait for |
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* each write operation to complete |
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* Reads file to EOF to a new buffer, invoking the Future's get method to |
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* wait for each write operation to complete |
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* Compares buffer contents |
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*/ |
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static void testUsingWaitOnResult(AsynchronousFileChannel ch) |
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throws IOException |
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{ |
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System.out.println("testUsingWaitOnResult"); |
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ch.truncate(0L); |
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116 |
// generate buffer |
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117 |
ByteBuffer src = genBuffer(); |
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|
118 |
|
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119 |
// write buffer completely to file |
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120 |
long position = 0L; |
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121 |
while (src.hasRemaining()) { |
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122 |
Future<Integer> result = ch.write(src, position); |
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|
123 |
try { |
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124 |
int n = result.get(); |
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|
125 |
// update position |
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|
126 |
position += n; |
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|
127 |
} catch (ExecutionException x) { |
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128 |
throw new RuntimeException(x.getCause()); |
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|
129 |
} catch (InterruptedException x) { |
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130 |
throw new RuntimeException(x); |
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|
131 |
} |
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|
132 |
} |
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|
133 |
|
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|
134 |
// read file into new buffer |
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135 |
ByteBuffer dst = (rand.nextBoolean()) ? |
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|
136 |
ByteBuffer.allocateDirect(src.capacity()) : |
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|
137 |
ByteBuffer.allocate(src.capacity()); |
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|
138 |
position = 0L; |
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|
139 |
int n; |
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|
140 |
do { |
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|
141 |
Future<Integer> result = ch.read(dst, position); |
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|
142 |
try { |
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|
143 |
n = result.get(); |
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|
144 |
|
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|
145 |
// update position |
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|
146 |
if (n > 0) position += n; |
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|
147 |
} catch (ExecutionException x) { |
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|
148 |
throw new RuntimeException(x.getCause()); |
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|
149 |
} catch (InterruptedException x) { |
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|
150 |
throw new RuntimeException(x); |
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|
151 |
} |
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|
152 |
} while (n > 0); |
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|
153 |
|
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|
154 |
// check buffers are the same |
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|
155 |
src.flip(); |
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|
156 |
dst.flip(); |
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|
157 |
if (!src.equals(dst)) { |
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|
158 |
throw new RuntimeException("Contents differ"); |
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|
159 |
} |
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|
160 |
} |
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changeset
|
161 |
|
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|
162 |
// exercise lock methods |
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|
163 |
static void testLocking(AsynchronousFileChannel ch) |
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|
164 |
throws IOException |
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|
165 |
{ |
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|
166 |
System.out.println("testLocking"); |
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changeset
|
167 |
|
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|
168 |
// test 1 - acquire lock and check that tryLock throws |
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|
169 |
// OverlappingFileLockException |
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|
170 |
FileLock fl; |
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|
171 |
try { |
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|
172 |
fl = ch.lock().get(); |
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|
173 |
} catch (ExecutionException x) { |
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|
174 |
throw new RuntimeException(x); |
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changeset
|
175 |
} catch (InterruptedException x) { |
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|
176 |
throw new RuntimeException("Should not be interrupted"); |
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|
177 |
} |
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|
178 |
if (!fl.acquiredBy().equals(ch)) |
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changeset
|
179 |
throw new RuntimeException("FileLock#acquiredBy returned incorrect channel"); |
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changeset
|
180 |
try { |
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|
181 |
ch.tryLock(); |
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changeset
|
182 |
throw new RuntimeException("OverlappingFileLockException expected"); |
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changeset
|
183 |
} catch (OverlappingFileLockException x) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
184 |
} |
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changeset
|
185 |
fl.release(); |
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parents:
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changeset
|
186 |
|
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changeset
|
187 |
// test 2 - acquire try and check that lock throws OverlappingFileLockException |
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changeset
|
188 |
fl = ch.tryLock(); |
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|
189 |
if (fl == null) |
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changeset
|
190 |
throw new RuntimeException("Unable to acquire lock"); |
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parents:
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changeset
|
191 |
try { |
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|
192 |
ch.lock(null, new CompletionHandler<FileLock,Void> () { |
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changeset
|
193 |
public void completed(FileLock result, Void att) { |
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changeset
|
194 |
} |
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changeset
|
195 |
public void failed(Throwable exc, Void att) { |
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parents:
diff
changeset
|
196 |
} |
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changeset
|
197 |
public void cancelled(Void att) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
198 |
} |
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parents:
diff
changeset
|
199 |
}); |
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parents:
diff
changeset
|
200 |
throw new RuntimeException("OverlappingFileLockException expected"); |
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parents:
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changeset
|
201 |
} catch (OverlappingFileLockException x) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
202 |
} |
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changeset
|
203 |
fl.release(); |
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parents:
diff
changeset
|
204 |
} |
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parents:
diff
changeset
|
205 |
|
3acf8e5e2ca0
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parents:
diff
changeset
|
206 |
// interrupt should not close channel |
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changeset
|
207 |
static void testInterruptHandlerThread(final AsynchronousFileChannel ch) { |
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|
208 |
System.out.println("testInterruptHandlerThread"); |
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parents:
diff
changeset
|
209 |
|
3acf8e5e2ca0
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parents:
diff
changeset
|
210 |
ByteBuffer buf = ByteBuffer.allocateDirect(100); |
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changeset
|
211 |
final CountDownLatch latch = new CountDownLatch(1); |
3acf8e5e2ca0
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parents:
diff
changeset
|
212 |
|
3acf8e5e2ca0
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changeset
|
213 |
ch.read(buf, 0L, null, new CompletionHandler<Integer,Void>() { |
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parents:
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|
214 |
public void completed(Integer result, Void att) { |
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parents:
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changeset
|
215 |
try { |
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|
216 |
Thread.currentThread().interrupt(); |
3acf8e5e2ca0
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|
217 |
long size = ch.size(); |
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|
218 |
latch.countDown(); |
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|
219 |
} catch (IOException x) { |
3acf8e5e2ca0
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|
220 |
x.printStackTrace(); |
3acf8e5e2ca0
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parents:
diff
changeset
|
221 |
} |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
222 |
} |
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parents:
diff
changeset
|
223 |
public void failed(Throwable exc, Void att) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
224 |
} |
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parents:
diff
changeset
|
225 |
public void cancelled(Void att) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
226 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
227 |
}); |
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parents:
diff
changeset
|
228 |
|
3acf8e5e2ca0
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diff
changeset
|
229 |
// wait for handler to complete |
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|
230 |
await(latch); |
3acf8e5e2ca0
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parents:
diff
changeset
|
231 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
232 |
|
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diff
changeset
|
233 |
// invoke method on closed channel |
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changeset
|
234 |
static void testClosedChannel(AsynchronousFileChannel ch) { |
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|
235 |
System.out.println("testClosedChannel"); |
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|
236 |
|
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|
237 |
if (ch.isOpen()) |
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|
238 |
throw new RuntimeException("Channel should be closed"); |
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|
239 |
|
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|
240 |
ByteBuffer buf = ByteBuffer.allocateDirect(100); |
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|
241 |
|
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|
242 |
// check read fails with ClosedChannelException |
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|
243 |
try { |
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|
244 |
ch.read(buf, 0L).get(); |
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|
245 |
throw new RuntimeException("ExecutionException expected"); |
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|
246 |
} catch (ExecutionException x) { |
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|
247 |
if (!(x.getCause() instanceof ClosedChannelException)) |
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changeset
|
248 |
throw new RuntimeException("Cause of ClosedChannelException expected"); |
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|
249 |
} catch (InterruptedException x) { |
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|
250 |
} |
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|
251 |
|
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|
252 |
// check write fails with ClosedChannelException |
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|
253 |
try { |
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|
254 |
ch.write(buf, 0L).get(); |
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changeset
|
255 |
throw new RuntimeException("ExecutionException expected"); |
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|
256 |
} catch (ExecutionException x) { |
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changeset
|
257 |
if (!(x.getCause() instanceof ClosedChannelException)) |
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changeset
|
258 |
throw new RuntimeException("Cause of ClosedChannelException expected"); |
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|
259 |
} catch (InterruptedException x) { |
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|
260 |
} |
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changeset
|
261 |
|
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|
262 |
// check lock fails with ClosedChannelException |
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changeset
|
263 |
try { |
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|
264 |
ch.lock().get(); |
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changeset
|
265 |
throw new RuntimeException("ExecutionException expected"); |
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changeset
|
266 |
} catch (ExecutionException x) { |
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changeset
|
267 |
if (!(x.getCause() instanceof ClosedChannelException)) |
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changeset
|
268 |
throw new RuntimeException("Cause of ClosedChannelException expected"); |
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changeset
|
269 |
} catch (InterruptedException x) { |
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parents:
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|
270 |
} |
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|
271 |
} |
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changeset
|
272 |
|
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parents:
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changeset
|
273 |
|
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|
274 |
// exercise custom thread pool |
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|
275 |
static void testCustomThreadPool(Path file) throws IOException { |
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|
276 |
System.out.println("testCustomThreadPool"); |
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changeset
|
277 |
|
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|
278 |
// records threads that are created |
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|
279 |
final List<Thread> threads = new ArrayList<Thread>(); |
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changeset
|
280 |
|
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|
281 |
ThreadFactory threadFactory = new ThreadFactory() { |
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|
282 |
@Override |
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|
283 |
public Thread newThread(Runnable r) { |
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|
284 |
Thread t = new Thread(r); |
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|
285 |
t.setDaemon(true); |
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changeset
|
286 |
synchronized (threads) { |
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changeset
|
287 |
threads.add(t); |
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parents:
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changeset
|
288 |
} |
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|
289 |
return t; |
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changeset
|
290 |
} |
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parents:
diff
changeset
|
291 |
}; |
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parents:
diff
changeset
|
292 |
|
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diff
changeset
|
293 |
// exercise tests with varied number of threads |
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changeset
|
294 |
for (int nThreads=1; nThreads<=5; nThreads++) { |
3acf8e5e2ca0
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changeset
|
295 |
synchronized (threads) { |
3acf8e5e2ca0
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changeset
|
296 |
threads.clear(); |
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parents:
diff
changeset
|
297 |
} |
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parents:
diff
changeset
|
298 |
ExecutorService executor = Executors.newFixedThreadPool(nThreads, threadFactory); |
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parents:
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changeset
|
299 |
Set<StandardOpenOption> opts = EnumSet.of(WRITE); |
3acf8e5e2ca0
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parents:
diff
changeset
|
300 |
AsynchronousFileChannel ch = AsynchronousFileChannel.open(file, opts, executor); |
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parents:
diff
changeset
|
301 |
try { |
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parents:
diff
changeset
|
302 |
for (int i=0; i<10; i++) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
303 |
// do I/O operation to see which thread invokes the completion handler |
3acf8e5e2ca0
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parents:
diff
changeset
|
304 |
final AtomicReference<Thread> invoker = new AtomicReference<Thread>(); |
3acf8e5e2ca0
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parents:
diff
changeset
|
305 |
final CountDownLatch latch = new CountDownLatch(1); |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
306 |
|
3acf8e5e2ca0
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parents:
diff
changeset
|
307 |
ch.write(genBuffer(), 0L, null, new CompletionHandler<Integer,Void>() { |
3acf8e5e2ca0
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parents:
diff
changeset
|
308 |
public void completed(Integer result, Void att) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
309 |
invoker.set(Thread.currentThread()); |
3acf8e5e2ca0
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parents:
diff
changeset
|
310 |
latch.countDown(); |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
311 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
312 |
public void failed(Throwable exc, Void att) { |
3acf8e5e2ca0
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parents:
diff
changeset
|
313 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
314 |
public void cancelled(Void att) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
315 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
316 |
}); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
317 |
await(latch); |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
318 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
319 |
// check invoker |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
320 |
boolean found = false; |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
321 |
synchronized (threads) { |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
322 |
for (Thread t: threads) { |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
323 |
if (t == invoker.get()) { |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
324 |
found = true; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
325 |
break; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
326 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
327 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
328 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
329 |
if (!found) |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
330 |
throw new RuntimeException("Invoker thread not found"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
331 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
332 |
} finally { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
333 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
334 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
335 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
336 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
337 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
338 |
// exercise asynchronous close |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
339 |
static void testAsynchronousClose(Path file) throws IOException { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
340 |
System.out.println("testAsynchronousClose"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
341 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
342 |
// create file |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
343 |
AsynchronousFileChannel ch = AsynchronousFileChannel |
3acf8e5e2ca0
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parents:
diff
changeset
|
344 |
.open(file, WRITE, TRUNCATE_EXISTING); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
345 |
long size = 0L; |
3acf8e5e2ca0
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parents:
diff
changeset
|
346 |
do { |
3acf8e5e2ca0
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parents:
diff
changeset
|
347 |
ByteBuffer buf = genBuffer(); |
3acf8e5e2ca0
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parents:
diff
changeset
|
348 |
int n = buf.remaining(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
349 |
writeFully(ch, buf, size); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
350 |
size += n; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
351 |
} while (size < (50L * 1024L * 1024L)); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
352 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
353 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
354 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
355 |
ch = AsynchronousFileChannel.open(file, WRITE, SYNC); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
356 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
357 |
// randomize number of writers, buffer size, and positions |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
358 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
359 |
int nwriters = 1 + rand.nextInt(8); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
360 |
ByteBuffer[] buf = new ByteBuffer[nwriters]; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
361 |
long[] position = new long[nwriters]; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
362 |
for (int i=0; i<nwriters; i++) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
363 |
buf[i] = genBuffer(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
364 |
position[i] = rand.nextInt((int)size); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
365 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
366 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
367 |
// initiate I/O |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
368 |
Future[] result = new Future[nwriters]; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
369 |
for (int i=0; i<nwriters; i++) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
370 |
result[i] = ch.write(buf[i], position[i]); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
371 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
372 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
373 |
// close file |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
374 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
375 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
376 |
// write operations should complete or fail with AsynchronousCloseException |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
377 |
for (int i=0; i<nwriters; i++) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
378 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
379 |
result[i].get(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
380 |
} catch (ExecutionException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
381 |
Throwable cause = x.getCause(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
382 |
if (!(cause instanceof AsynchronousCloseException)) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
383 |
throw new RuntimeException(cause); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
384 |
} catch (CancellationException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
385 |
throw new RuntimeException(x); // should not happen |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
386 |
} catch (InterruptedException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
387 |
throw new RuntimeException(x); // should not happen |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
388 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
389 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
390 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
391 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
392 |
// exercise cancel method |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
393 |
static void testCancel(Path file) throws IOException { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
394 |
System.out.println("testCancel"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
395 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
396 |
for (int i=0; i<2; i++) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
397 |
boolean mayInterruptIfRunning = (i == 0) ? false : true; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
398 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
399 |
// open with SYNC option to improve chances that write will not |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
400 |
// complete immediately |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
401 |
AsynchronousFileChannel ch = AsynchronousFileChannel |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
402 |
.open(file, WRITE, SYNC); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
403 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
404 |
// start write operation |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
405 |
final CountDownLatch latch = new CountDownLatch(1); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
406 |
Future<Integer> res = ch.write(genBuffer(), 0L, null, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
407 |
new CompletionHandler<Integer,Void>() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
408 |
public void completed(Integer result, Void att) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
409 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
410 |
public void failed(Throwable exc, Void att) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
411 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
412 |
public void cancelled(Void att) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
413 |
latch.countDown(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
414 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
415 |
}); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
416 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
417 |
// cancel operation |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
418 |
boolean cancelled = res.cancel(mayInterruptIfRunning); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
419 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
420 |
// check post-conditions |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
421 |
if (!res.isDone()) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
422 |
throw new RuntimeException("isDone should return true"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
423 |
if (res.isCancelled() != cancelled) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
424 |
throw new RuntimeException("isCancelled not consistent"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
425 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
426 |
res.get(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
427 |
if (!cancelled) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
428 |
throw new RuntimeException("CancellationException expected"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
429 |
} catch (CancellationException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
430 |
// expected |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
431 |
} catch (ExecutionException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
432 |
throw new RuntimeException(x); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
433 |
} catch (InterruptedException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
434 |
throw new RuntimeException(x); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
435 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
436 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
437 |
res.get(1, TimeUnit.SECONDS); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
438 |
throw new RuntimeException("CancellationException expected"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
439 |
} catch (CancellationException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
440 |
// expected |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
441 |
} catch (ExecutionException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
442 |
throw new RuntimeException(x); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
443 |
} catch (TimeoutException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
444 |
throw new RuntimeException(x); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
445 |
} catch (InterruptedException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
446 |
throw new RuntimeException(x); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
447 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
448 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
449 |
// check that cancelled method is invoked |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
450 |
if (cancelled) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
451 |
await(latch); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
452 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
453 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
454 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
455 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
456 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
457 |
// exercise truncate method |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
458 |
static void testTruncate(Path file) throws IOException { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
459 |
System.out.println("testTruncate"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
460 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
461 |
// basic tests |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
462 |
AsynchronousFileChannel ch = AsynchronousFileChannel |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
463 |
.open(file, CREATE, WRITE, TRUNCATE_EXISTING); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
464 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
465 |
writeFully(ch, genBuffer(), 0L); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
466 |
long size = ch.size(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
467 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
468 |
// attempt to truncate to a size greater than the current size |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
469 |
if (ch.truncate(size + 1L).size() != size) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
470 |
throw new RuntimeException("Unexpected size after truncation"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
471 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
472 |
// truncate file |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
473 |
if (ch.truncate(size - 1L).size() != (size - 1L)) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
474 |
throw new RuntimeException("Unexpected size after truncation"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
475 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
476 |
// invalid size |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
477 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
478 |
ch.truncate(-1L); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
479 |
throw new RuntimeException("IllegalArgumentException expected"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
480 |
} catch (IllegalArgumentException e) { } |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
481 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
482 |
} finally { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
483 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
484 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
485 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
486 |
// channel is closed |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
487 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
488 |
ch.truncate(0L); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
489 |
throw new RuntimeException("ClosedChannelException expected"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
490 |
} catch (ClosedChannelException e) { } |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
491 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
492 |
// channel is read-only |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
493 |
ch = AsynchronousFileChannel.open(file, READ); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
494 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
495 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
496 |
ch.truncate(0L); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
497 |
throw new RuntimeException("NonWritableChannelException expected"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
498 |
} catch (NonWritableChannelException e) { } |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
499 |
} finally { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
500 |
ch.close(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
501 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
502 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
503 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
504 |
// returns ByteBuffer with random bytes |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
505 |
static ByteBuffer genBuffer() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
506 |
int size = 1024 + rand.nextInt(16000); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
507 |
byte[] buf = new byte[size]; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
508 |
boolean useDirect = rand.nextBoolean(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
509 |
if (useDirect) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
510 |
ByteBuffer bb = ByteBuffer.allocateDirect(buf.length); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
511 |
bb.put(buf); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
512 |
bb.flip(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
513 |
return bb; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
514 |
} else { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
515 |
return ByteBuffer.wrap(buf); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
516 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
517 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
518 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
519 |
// writes all remaining bytes in the buffer to the given channel at the |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
520 |
// given position |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
521 |
static void writeFully(final AsynchronousFileChannel ch, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
522 |
final ByteBuffer src, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
523 |
long position) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
524 |
{ |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
525 |
final CountDownLatch latch = new CountDownLatch(1); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
526 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
527 |
// use position as attachment |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
528 |
ch.write(src, position, position, new CompletionHandler<Integer,Long>() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
529 |
public void completed(Integer result, Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
530 |
int n = result; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
531 |
if (src.hasRemaining()) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
532 |
long p = position + n; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
533 |
ch.write(src, p, p, this); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
534 |
} else { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
535 |
latch.countDown(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
536 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
537 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
538 |
public void failed(Throwable exc, Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
539 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
540 |
public void cancelled(Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
541 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
542 |
}); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
543 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
544 |
// wait for writes to complete |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
545 |
await(latch); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
546 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
547 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
548 |
static void readAll(final AsynchronousFileChannel ch, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
549 |
final ByteBuffer dst, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
550 |
long position) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
551 |
{ |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
552 |
final CountDownLatch latch = new CountDownLatch(1); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
553 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
554 |
// use position as attachment |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
555 |
ch.read(dst, position, position, new CompletionHandler<Integer,Long>() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
556 |
public void completed(Integer result, Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
557 |
int n = result; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
558 |
if (n > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
559 |
long p = position + n; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
560 |
ch.read(dst, p, p, this); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
561 |
} else { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
562 |
latch.countDown(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
563 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
564 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
565 |
public void failed(Throwable exc, Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
566 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
567 |
public void cancelled(Long position) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
568 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
569 |
}); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
570 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
571 |
// wait for reads to complete |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
572 |
await(latch); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
573 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
574 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
575 |
static void await(CountDownLatch latch) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
576 |
// wait until done |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
577 |
boolean done = false; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
578 |
while (!done) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
579 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
580 |
latch.await(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
581 |
done = true; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
582 |
} catch (InterruptedException x) { } |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
583 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
584 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
585 |
} |