/* ProcessAssasin.java Copyright (C) 2011,2012 Red Hat, Inc. This file is part of IcedTea. IcedTea 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, version 2. IcedTea 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 IcedTea; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library 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 library. If you modify this library, 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 net.sourceforge.jnlp; import java.lang.reflect.Field; import java.util.ArrayList; import java.util.List; import net.sourceforge.jnlp.browsertesting.ReactingProcess; /** * class which timeout any ThreadedProcess. This killing of 'thread with * process' replaced not working process.destroy(). */ public class ProcessAssasin extends Thread { long timeout; private final ThreadedProcess p; //false == is disabled:( private boolean canRun = true; private boolean wasTerminated = false; //signifies that assasin have been summoned private volatile boolean killing = false; //signifies that assasin have done its job private volatile boolean killed = false; /** * if this is true, then process is not destroyed after timeout, but just * left to its own destiny. Its stdout/err is no longer recorded, and it is * leaking system resources until it dies by itself The contorl is returned * to main thread with all informations recorded untill now. You will be * able to listen to std out from listeners still */ private boolean skipInstedOfDesroy = false; private ReactingProcess reactingProcess; public ProcessAssasin(ThreadedProcess p, long timeout) { this.p = (p); this.timeout = timeout; } public ProcessAssasin(ThreadedProcess p, long timeout, boolean skipInstedOfDesroy) { this.p = (p); this.timeout = timeout; this.skipInstedOfDesroy = skipInstedOfDesroy; } public void setCanRun(boolean canRun) { this.canRun = canRun; if (p != null) { if (p.getP() != null) { ServerAccess.logNoReprint("Stopping assassin for" + p.toString() + " " + p.getP().toString() + " " + p.getCommandLine() + ": "); } else { ServerAccess.logNoReprint("Stopping assassin for" + p.toString() + " " + p.getCommandLine() + ": "); } } else { ServerAccess.logNoReprint("Stopping assassin for null job: "); } } public boolean isCanRun() { return canRun; } public boolean wasTerminated() { return wasTerminated; } public void setSkipInstedOfDesroy(boolean skipInstedOfDesroy) { this.skipInstedOfDesroy = skipInstedOfDesroy; } public boolean isSkipInstedOfDesroy() { return skipInstedOfDesroy; } void setTimeout(long timeout) { this.timeout = timeout; } @Override public void run() { long startTime = System.nanoTime() / ServerAccess.NANO_TIME_DELIMITER; while (canRun) { try { long time = System.nanoTime() / ServerAccess.NANO_TIME_DELIMITER; //ServerAccess.logOutputReprint(time - startTime); //ServerAccess.logOutputReprint((time - startTime) > timeout); if ((time - startTime) > timeout) { try { if (p != null) { if (p.getP() != null) { ServerAccess.logErrorReprint("Timed out " + p.toString() + " " + p.getP().toString() + " .. killing " + p.getCommandLine() + ": "); } else { ServerAccess.logErrorReprint("Timed out " + p.toString() + " " + "null .. killing " + p.getCommandLine() + ": "); } wasTerminated = true; if (p.getP() != null) { try { if (!skipInstedOfDesroy) { destroyProcess(); } } catch (Throwable ex) { if (p.deadlyException == null) { p.deadlyException = ex; } ex.printStackTrace(); } } p.interrupt(); // while (!ServerAccess.terminated.contains(p)) { // Thread.sleep(100); // } if (p.getP() != null) { ServerAccess.logErrorReprint("Timed out " + p.toString() + " " + p.getP().toString() + " .. killed " + p.getCommandLine()); } else { ServerAccess.logErrorReprint("Timed out " + p.toString() + " null .. killed " + p.getCommandLine()); } } else { ServerAccess.logErrorReprint("Timed out null job"); } break; } finally { p.setDestoyed(true); } } Thread.sleep(100); } catch (Exception ex) { ex.printStackTrace(); } } if (p != null) { if (p.getP() != null) { ServerAccess.logNoReprint("assassin for" + p.toString() + " " + p.getP().toString() + " .. done " + p.getCommandLine() + " termination " + wasTerminated); } else { ServerAccess.logNoReprint("assassin for" + p.toString() + " null .. done " + p.getCommandLine() + " termination " + wasTerminated); } } else { ServerAccess.logNoReprint("assassin for non existing job termination " + wasTerminated); } } public void destroyProcess() { try { killing = true; destroyProcess(p, reactingProcess); } finally { killed = true; } } public boolean haveKilled() { return killed; } public boolean isKilling() { return killing; } public static void destroyProcess(ThreadedProcess pp, ReactingProcess reactingProcess) { Process p = pp.getP(); try { Field f = p.getClass().getDeclaredField("pid"); f.setAccessible(true); String pid = (f.get(p)).toString(); if (reactingProcess != null) { reactingProcess.beforeKill(pid); }; sigInt(pid); //sigTerm(pid); //sigKill(pid); } catch (Exception ex) { ServerAccess.logException(ex); } finally { p.destroy(); if (reactingProcess != null) { reactingProcess.afterKill(""); }; } } public static void sigInt(String pid) throws Exception { kill(pid, "SIGINT"); } public static void sigKill(String pid) throws Exception { kill(pid, "SIGKILL"); } public static void sigTerm(String pid) throws Exception { kill(pid, "SIGTERM"); } public static void kill(String pid, String signal) throws InterruptedException, Exception { List ll = new ArrayList(4); ll.add("kill"); ll.add("-s"); ll.add(signal); ll.add(pid); ServerAccess.executeProcess(ll); //sync, but acctually release //before affected application close Thread.sleep(1000); } void setReactingProcess(ReactingProcess reactingProcess) { this.reactingProcess = reactingProcess; } public static void closeWindow(String pid) throws Exception { List ll = new ArrayList(2); ll.add(ServerAccess.getInstance().getDir().getParent() + "/softkiller"); ll.add(pid); ServerAccess.executeProcess(ll); //sync, but acctually release //before affected application "close" Thread.sleep(100); } public static void closeWindows(String s) throws Exception { closeWindows(s, 10); } public static void closeWindows(String s, int count) throws Exception { //each close closes just one tab... for (int i = 0; i < count; i++) { ProcessAssasin.closeWindow(s); } } }