1 /*

     2  * Copyright (c) 1998, 2015, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package jdk.internal.jshell.jdi;

    27 

    28 import java.util.Map;

    29 

    30 import com.sun.jdi.*;

    31 import static jdk.internal.jshell.debug.InternalDebugControl.DBG_GEN;

    32 

    33 /**

    34  * Representation of a Java Debug Interface environment

    35  * Select methods extracted from jdb Env; shutdown() adapted to JShell shutdown.

    36  */

    37 class JDIEnv {

    38 

    39     private JDIConnection connection;

    40     private final JDIExecutionControl ec;

    41 

    42     JDIEnv(JDIExecutionControl ec) {

    43         this.ec = ec;

    44     }

    45 

    46     void init(String connectorName, Map<String, String> argumentName2Value, boolean openNow, int flags) {

    47         connection = new JDIConnection(ec, connectorName, argumentName2Value, flags);

    48         if (!connection.isLaunch() || openNow) {

    49             connection.open();

    50         }

    51     }

    52 

    53     JDIConnection connection() {

    54         return connection;

    55     }

    56 

    57     VirtualMachine vm() {

    58         return connection.vm();

    59     }

    60 

    61     void shutdown() {

    62         if (connection != null) {

    63             try {

    64                 connection.disposeVM();

    65             } catch (VMDisconnectedException e) {

    66                 // Shutting down after the VM has gone away. This is

    67                 // not an error, and we just ignore it.

    68             } catch (Throwable e) {

    69                 ec.debug(DBG_GEN, null, "disposeVM threw: " + e);

    70             }

    71         }

    72         if (ec.execEnv.state() != null) { // If state has been set-up

    73             try {

    74                 ec.execEnv.closeDown();

    75             } catch (Throwable e) {

    76                 ec.debug(DBG_GEN, null, "state().closeDown() threw: " + e);

    77             }

    78         }

    79     }

    80 }