13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @bug 4619744
27 * @summary Test that Process input/out can be concurrently read/written
28 * @author kladko
29 */
30
31 import java.io.InputStream;
32 import java.io.OutputStream;
33 import java.io.File;
34 import java.io.IOException;
35
36 public class ConcurrentRead {
37
38 static volatile Exception savedException;
39 static final String TEE = "/usr/bin/tee";
40
41 public static void main(String[] args) throws Exception {
42
43 if (File.separatorChar == '\\' || // Windows
44 !new File(TEE).exists()) // no tee
45 return;
46
47 Process p = Runtime.getRuntime().exec(TEE);
48 OutputStream out = p.getOutputStream();
49 InputStream in = p.getInputStream();
50 Thread t1 = new WriterThread(out, in);
51 t1.start();
52 Thread t2 = new WriterThread(out, in);
53 t2.start();
54 t1.join();
55 t2.join();
56 if (savedException != null)
57 throw savedException;
58 }
59
60 static class WriterThread extends Thread {
61 OutputStream out;
62 InputStream in;
63 WriterThread(OutputStream out, InputStream in) {
64 this.out = out;
65 this.in = in;
66 }
67 public void run(){
|
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 /**
25 * @test
26 * @bug 4619744
27 * @summary Test that Process input/out can be concurrently read/written
28 * @author kladko
29 */
30
31 import java.io.InputStream;
32 import java.io.OutputStream;
33
34 public class ConcurrentRead {
35
36 static volatile Exception savedException;
37
38 public static void main(String[] args) throws Exception {
39 if (! UnixCommands.isUnix) {
40 System.out.println("For UNIX only");
41 return;
42 }
43 UnixCommands.ensureCommandsAvailable("tee");
44
45 Process p = Runtime.getRuntime().exec(UnixCommands.tee());
46 OutputStream out = p.getOutputStream();
47 InputStream in = p.getInputStream();
48 Thread t1 = new WriterThread(out, in);
49 t1.start();
50 Thread t2 = new WriterThread(out, in);
51 t2.start();
52 t1.join();
53 t2.join();
54 if (savedException != null)
55 throw savedException;
56 }
57
58 static class WriterThread extends Thread {
59 OutputStream out;
60 InputStream in;
61 WriterThread(OutputStream out, InputStream in) {
62 this.out = out;
63 this.in = in;
64 }
65 public void run(){
|