/* * Copyright (c) 2016, 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.
*/
private VirtualMachine vm; private Process process;
/** * Creates an ExecutionControl instance based on a JDI * {@code ListeningConnector} or {@code LaunchingConnector}. * * Initialize JDI and use it to launch the remote JVM. Set-up a socket for * commands and results. This socket also transports the user * input/output/error. * * @param env the context passed by * {@link jdk.jshell.spi.ExecutionControl#start(jdk.jshell.spi.ExecutionEnv) } * @return the channel * @throws IOException if there are errors in set-up
*/ static ExecutionControl make(ExecutionEnv env, UserJdiUserRemoteTest test) throws IOException { try (final ServerSocket listener = new ServerSocket(0)) { // timeout for socket
listener.setSoTimeout(TIMEOUT); int port = listener.getLocalPort();
// Set-up the JDI connection
List<String> opts = new ArrayList<>(env.extraRemoteVMOptions());
opts.add("-classpath");
opts.add(System.getProperty("java.class.path")
+ System.getProperty("path.separator")
+ System.getProperty("user.dir"));
JdiInitiator jdii = new JdiInitiator(port,
opts, REMOTE_AGENT, true, null, TIMEOUT, Collections.emptyMap());
VirtualMachine vm = jdii.vm();
Process process = jdii.process();
List<Consumer<String>> deathListeners = new ArrayList<>();
deathListeners.add(s -> env.closeDown());
Util.detectJdiExitEvent(vm, s -> { for (Consumer<String> h : deathListeners) {
h.accept(s);
}
});
// Set-up the commands/reslts on the socket. Piggy-back snippet // output.
Socket socket = listener.accept(); // out before in -- match remote creation so we don't hang
OutputStream out = socket.getOutputStream();
Map<String, OutputStream> outputs = new HashMap<>();
outputs.put("out", env.userOut());
outputs.put("err", env.userErr());
outputs.put("aux", test.auxStream);
Map<String, InputStream> input = new HashMap<>();
input.put("in", env.userIn());
ExecutionControl myec = remoteInputOutput(socket.getInputStream(),
out, outputs, input,
(objIn, objOut) -> new MyExecutionControl(objOut, objIn, vm, process, deathListeners));
test.currentEC = myec; return myec;
}
}
/** * Create an instance. * * @param out the output for commands * @param in the input for responses
*/ private MyExecutionControl(ObjectOutput out, ObjectInput in,
VirtualMachine vm, Process process,
List<Consumer<String>> deathListeners) { super(out, in); this.vm = vm; this.process = process;
deathListeners.add(s -> disposeVM());
}
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