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/*
* SonarQube
* Copyright (C) 2009-2019 SonarSource SA
* mailto:info AT sonarsource DOT com
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This program 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
package org.sonar.process;
import java.util.concurrent.atomic.AtomicBoolean;
/**
* Calls {@link System#exit(int)} except from shutdown hooks, to prevent
* deadlocks. See http://stackoverflow.com/a/19552359/229031
*/
public class SystemExit {
private final AtomicBoolean inShutdownHook = new AtomicBoolean(false);
public void exit(int code) {
if (!inShutdownHook.get()) {
doExit(code);
}
}
public boolean isInShutdownHook() {
return inShutdownHook.get();
}
/**
* Declarative approach. I don't know how to get this lifecycle state from Java API.
*/
public void setInShutdownHook() {
inShutdownHook.set(true);
}
void doExit(int code) {
System.exit(code);
}
}
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