Mercurial > hg > thermostat
view common/portability/src/main/java/com/redhat/thermostat/common/portability/ProcessChecker.java @ 2575:902e2e96f4e8
A preliminary port of Thermostat to macos.
It is quite usable except for statistics that query the OS (like memory and IO usage over time).
The main unfinished business:
- native code for memory and IO usage
- JUnit
- GUI often hangs on exit.
- Mac .app bundle build
Reviewed-by: neugens
Review-thread: http://icedtea.classpath.org/pipermail/thermostat/2017-January/022086.html
author | Simon Tooke <stooke@redhat.com> |
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date | Mon, 30 Jan 2017 13:06:07 -0500 |
parents | b98beac5559c |
children |
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/* * Copyright 2012-2017 Red Hat, Inc. * * This file is part of Thermostat. * * Thermostat is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published * by the Free Software Foundation; either version 2, or (at your * option) any later version. * * Thermostat 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 for more details. * * You should have received a copy of the GNU General Public License * along with Thermostat; see the file COPYING. If not see * <http://www.gnu.org/licenses/>. * * Linking this code with other modules is making a combined work * based on this code. Thus, the terms and conditions of the GNU * General Public License cover the whole combination. * * As a special exception, the copyright holders of this code give * you permission to link this code with independent modules to * produce an executable, regardless of the license terms of these * independent modules, and to copy and distribute the resulting * executable under terms of your choice, provided that you also * meet, for each linked independent module, the terms and conditions * of the license of that module. An independent module is a module * which is not derived from or based on this code. If you modify * this code, you may extend this exception to your version of the * library, but you are not obligated to do so. If you do not wish * to do so, delete this exception statement from your version. */ package com.redhat.thermostat.common.portability; import com.redhat.thermostat.common.portability.internal.macos.MacOSHelperImpl; import com.redhat.thermostat.common.portability.internal.windows.WindowsHelperImpl; import com.redhat.thermostat.shared.config.OS; import java.io.File; /** * Utility for checking whether a process exists or not. * * Implementation note: This is Linux specific. * */ public class ProcessChecker { private static final boolean is_linux = OS.IS_LINUX; public boolean exists(int pid) { return OS.IS_LINUX ? existsLinux(pid) : (OS.IS_WINDOWS ? existsWindows(pid) : existsMacOS(pid)); } private boolean existsLinux(int pid) { File procFile = mapToFile(pid); return procFile.exists(); } private boolean existsMacOS(int pid) { return MacOSHelperImpl.INSTANCE.exists(pid); } private boolean existsWindows(int pid) { return WindowsHelperImpl.INSTANCE.exists(pid); } // testing-hook File mapToFile(int pid) { return new File("/proc/" + pid); } }