752 lines
32 KiB
Java
752 lines
32 KiB
Java
/*
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* Copyright (c) 2011-2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package com.sun.tools.sjavac.server;
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import java.io.BufferedReader;
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import java.io.File;
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import java.io.IOException;
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import java.io.InputStreamReader;
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import java.io.PrintWriter;
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import java.io.FileNotFoundException;
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import java.net.URI;
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import java.util.HashSet;
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import java.util.Set;
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import java.util.HashMap;
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import java.util.Map;
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import java.net.InetAddress;
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import java.net.InetSocketAddress;
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import java.net.ServerSocket;
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import java.net.Socket;
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import java.net.SocketAddress;
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import java.util.ArrayList;
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import java.util.Random;
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import com.sun.tools.sjavac.Util;
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import com.sun.tools.sjavac.ProblemException;
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import java.io.*;
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import java.util.*;
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/**
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* The JavacServer class contains methods both to setup a server that responds to requests and methods to connect to this server.
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*
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* <p><b>This is NOT part of any supported API. If you write code that depends on this, you do so at your own risk. This code and its internal interfaces are
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* subject to change or deletion without notice.</b></p>
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*/
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public class JavacServer {
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// Responding to this tcp/ip port on localhost.
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private final ServerSocket serverSocket;
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// The secret cookie shared between server and client through the port file.
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private final long myCookie;
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// When the server was started.
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private long serverStart;
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// Accumulated build time for all requests, not counting idle time.
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private long totalBuildTime;
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// The javac server specific log file.
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PrintWriter theLog;
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// The compiler pool that maintains the compiler threads.
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CompilerPool compilerPool;
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// For the client, all port files fetched, one per started javac server.
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// Though usually only one javac server is started by a client.
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private static Map<String, PortFile> allPortFiles;
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private static Map<String, Long> maxServerMemory;
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final static int ERROR_FATAL = -1;
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final static int ERROR_BUT_TRY_AGAIN = -4712;
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final static String PROTOCOL_COOKIE_VERSION = "----THE-COOKIE-V2----";
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final static String PROTOCOL_CWD = "----THE-CWD----";
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final static String PROTOCOL_ID = "----THE-ID----";
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final static String PROTOCOL_ARGS = "----THE-ARGS----";
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final static String PROTOCOL_SOURCES_TO_COMPILE = "----THE-SOURCES-TO-COMPILE----";
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final static String PROTOCOL_VISIBLE_SOURCES = "----THE-VISIBLE-SOURCES----";
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final static String PROTOCOL_END = "----THE-END----";
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final static String PROTOCOL_STDOUT = "----THE-STDOUT----";
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final static String PROTOCOL_STDERR = "----THE-STDERR----";
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final static String PROTOCOL_PACKAGE_ARTIFACTS = "----THE-PACKAGE_ARTIFACTS----";
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final static String PROTOCOL_PACKAGE_DEPENDENCIES = "----THE-PACKAGE_DEPENDENCIES----";
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final static String PROTOCOL_PACKAGE_PUBLIC_APIS = "----THE-PACKAGE-PUBLIC-APIS----";
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final static String PROTOCOL_SYSINFO = "----THE-SYSINFO----";
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final static String PROTOCOL_RETURN_CODE = "----THE-RETURN-CODE----";
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// Check if the portfile is gone, every 5 seconds.
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static int CHECK_PORTFILE_INTERVAL = 5;
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// Wait 2 seconds for response, before giving up on javac server.
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static int CONNECTION_TIMEOUT = 2;
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static int WAIT_BETWEEN_CONNECT_ATTEMPTS = 1;
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static int MAX_NUM_CONNECT_ATTEMPTS = 3;
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/**
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* Acquire the port file. Synchronized since several threads inside an smart javac wrapper client acquires the same port file at the same time.
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*/
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private static synchronized PortFile getPortFile(String filename) throws FileNotFoundException {
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if (allPortFiles == null) {
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allPortFiles = new HashMap<String, PortFile>();
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}
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PortFile pf = allPortFiles.get(filename);
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if (pf == null) {
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pf = new PortFile(filename);
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allPortFiles.put(filename, pf);
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}
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return pf;
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}
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/**
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* Get the cookie used for this server.
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*/
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long getCookie() {
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return myCookie;
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}
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/**
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* Get the port used for this server.
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*/
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int getPort() {
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return serverSocket.getLocalPort();
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}
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/**
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* Sum up the total build time for this javac server.
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*/
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public void addBuildTime(long inc) {
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totalBuildTime += inc;
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}
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/**
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* Log this message.
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*/
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public void log(String msg) {
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if (theLog != null) {
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theLog.println(msg);
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} else {
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System.err.println(msg);
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}
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}
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/**
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* Make sure the log is flushed.
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*/
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public void flushLog() {
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if (theLog != null) {
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theLog.flush();
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}
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}
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/**
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* Start a server using a settings string. Typically: "--startserver:portfile=/tmp/myserver,poolsize=3" and the string "portfile=/tmp/myserver,poolsize=3"
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* is sent as the settings parameter. Returns 0 on success, -1 on failure.
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*/
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public static int startServer(String settings, PrintStream err) {
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try {
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String portfile = Util.extractStringOption("portfile", settings);
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// The log file collects more javac server specific log information.
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String logfile = Util.extractStringOption("logfile", settings);
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// The stdouterr file collects all the System.out and System.err writes to disk.
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String stdouterrfile = Util.extractStringOption("stdouterrfile", settings);
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// We could perhaps use System.setOut and setErr here.
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// But for the moment we rely on the client to spawn a shell where stdout
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// and stderr are redirected already.
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// The pool size is a limit the number of concurrent compiler threads used.
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// The server might use less than these to avoid memory problems.
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int poolsize = Util.extractIntOption("poolsize", settings);
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if (poolsize <= 0) {
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// If not set, default to the number of cores.
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poolsize = Runtime.getRuntime().availableProcessors();
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}
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// How many seconds of inactivity will the server accept before quitting?
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int keepalive = Util.extractIntOption("keepalive", settings);
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if (keepalive <= 0) {
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keepalive = 120;
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}
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// The port file is locked and the server port and cookie is written into it.
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PortFile portFile = getPortFile(portfile);
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JavacServer s;
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synchronized (portFile) {
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portFile.lock();
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portFile.getValues();
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if (portFile.containsPortInfo()) {
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err.println("Javac server not started because portfile exists!");
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portFile.unlock();
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return -1;
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}
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s = new JavacServer(poolsize, logfile);
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portFile.setValues(s.getPort(), s.getCookie());
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portFile.unlock();
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}
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// Run the server. Will delete the port file when shutting down.
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// It will shut down automatically when no new requests have come in
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// during the last 125 seconds.
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s.run(portFile, err, keepalive);
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// The run loop for the server has exited.
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return 0;
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} catch (Exception e) {
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e.printStackTrace(err);
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return -1;
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}
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}
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/**
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* Dispatch a compilation request to a javac server.
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*
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* @param args are the command line args to javac and is allowed to contain source files, @file and other command line options to javac.
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*
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* The generated classes, h files and other artifacts from the javac invocation are stored by the javac server to disk.
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*
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* @param sources_to_compile The sources to compile.
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*
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* @param visibleSources If visible sources has a non zero size, then visible_sources are the only files in the file system that the javac server can see!
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* (Sources to compile are always visible.) The visible sources are those supplied by the (filtered) -sourcepath
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*
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* @param visibleClasses If visible classes for a specific root/jar has a non zero size, then visible_classes are the only class files that the javac server
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* can see, in that root/jar. It maps from a classpath root or a jar file to the set of visible classes for that root/jar.
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*
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* The server return meta data about the build in the following parameters.
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* @param package_artifacts, map from package name to set of created artifacts for that package.
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* @param package_dependencies, map from package name to set of packages that it depends upon.
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* @param package_pubapis, map from package name to unique string identifying its pub api.
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*/
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public static int useServer(String settings, String[] args,
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Set<URI> sourcesToCompile,
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Set<URI> visibleSources,
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Map<URI, Set<String>> visibleClasses,
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Map<String, Set<URI>> packageArtifacts,
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Map<String, Set<String>> packageDependencies,
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Map<String, String> packagePubapis,
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SysInfo sysinfo,
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PrintStream out,
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PrintStream err) {
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try {
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// The id can perhaps be used in the future by the javac server to reuse the
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// JavaCompiler instance for several compiles using the same id.
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String id = Util.extractStringOption("id", settings);
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String portfile = Util.extractStringOption("portfile", settings);
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String logfile = Util.extractStringOption("logfile", settings);
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String stdouterrfile = Util.extractStringOption("stdouterrfile", settings);
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String background = Util.extractStringOption("background", settings);
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if (background == null || !background.equals("false")) {
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background = "true";
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}
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// The sjavac option specifies how the server part of sjavac is spawned.
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// If you have the experimental sjavac in your path, you are done. If not, you have
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// to point to a com.sun.tools.sjavac.Main that supports --startserver
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// for example by setting: sjavac=java%20-jar%20...javac.jar%com.sun.tools.sjavac.Main
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String sjavac = Util.extractStringOption("sjavac", settings);
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int poolsize = Util.extractIntOption("poolsize", settings);
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int keepalive = Util.extractIntOption("keepalive", settings);
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if (keepalive <= 0) {
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// Default keepalive for server is 120 seconds.
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// I.e. it will accept 120 seconds of inactivity before quitting.
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keepalive = 120;
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}
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if (portfile == null) {
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err.println("No portfile was specified!");
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return -1;
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}
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if (logfile == null) {
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logfile = portfile + ".javaclog";
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}
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if (stdouterrfile == null) {
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stdouterrfile = portfile + ".stdouterr";
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}
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// Default to sjavac and hope it is in the path.
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if (sjavac == null) {
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sjavac = "sjavac";
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}
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int attempts = 0;
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int rc = -1;
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do {
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PortFile port_file = getPortFile(portfile);
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synchronized (port_file) {
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port_file.lock();
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port_file.getValues();
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port_file.unlock();
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}
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if (!port_file.containsPortInfo()) {
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String cmd = fork(sjavac, port_file.getFilename(), logfile, poolsize, keepalive, err, stdouterrfile, background);
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if (background.equals("true") && !port_file.waitForValidValues()) {
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// Ouch the server did not start! Lets print its stdouterrfile and the command used.
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printFailedAttempt(cmd, stdouterrfile, err);
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// And give up.
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return -1;
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}
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}
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rc = connectAndCompile(port_file, id, args, sourcesToCompile, visibleSources,
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packageArtifacts, packageDependencies, packagePubapis, sysinfo,
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out, err);
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// Try again until we manage to connect. Any error after that
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// will cause the compilation to fail.
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if (rc == ERROR_BUT_TRY_AGAIN) {
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// We could not connect to the server. Try again.
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attempts++;
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try {
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Thread.sleep(WAIT_BETWEEN_CONNECT_ATTEMPTS);
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} catch (InterruptedException e) {
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}
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}
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} while (rc == ERROR_BUT_TRY_AGAIN && attempts < MAX_NUM_CONNECT_ATTEMPTS);
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return rc;
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} catch (Exception e) {
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e.printStackTrace(err);
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return -1;
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}
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}
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private static void printFailedAttempt(String cmd, String f, PrintStream err) {
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err.println("---- Failed to start javac server with this command -----");
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err.println(cmd);
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try {
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BufferedReader in = new BufferedReader(new FileReader(f));
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err.println("---- stdout/stderr output from attempt to start javac server -----");
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for (;;) {
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String l = in.readLine();
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if (l == null) {
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break;
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}
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err.println(l);
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}
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err.println("------------------------------------------------------------------");
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} catch (Exception e) {
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err.println("The stdout/stderr output in file " + f + " does not exist and the server did not start.");
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}
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}
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/**
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* Spawn the server instance.
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*/
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private JavacServer(int poolSize, String logfile) throws IOException {
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serverStart = System.currentTimeMillis();
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// Create a server socket on a random port that is bound to the localhost/127.0.0.1 interface.
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// I.e only local processes can connect to this port.
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serverSocket = new ServerSocket(0, 128, InetAddress.getByName(null));
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compilerPool = new CompilerPool(poolSize, this);
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Random rnd = new Random();
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myCookie = rnd.nextLong();
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theLog = new PrintWriter(logfile);
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log("Javac server started. port=" + getPort() + " date=" + (new java.util.Date()) + " with poolsize=" + poolSize);
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flushLog();
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}
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/**
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* Fork a background process. Returns the command line used that can be printed if something failed.
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*/
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private static String fork(String sjavac, String portfile, String logfile, int poolsize, int keepalive,
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final PrintStream err, String stdouterrfile, String background)
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throws IOException, ProblemException {
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if (stdouterrfile != null && stdouterrfile.trim().equals("")) {
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stdouterrfile = null;
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}
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final String startserver = "--startserver:portfile=" + portfile + ",logfile=" + logfile + ",stdouterrfile=" + stdouterrfile + ",poolsize=" + poolsize + ",keepalive="+ keepalive;
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if (background.equals("true")) {
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sjavac += "%20" + startserver;
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sjavac = sjavac.replaceAll("%20", " ");
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sjavac = sjavac.replaceAll("%2C", ",");
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// If the java/sh/cmd launcher fails the failure will be captured by stdouterr because of the redirection here.
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String[] cmd = {"/bin/sh", "-c", sjavac + " >> " + stdouterrfile + " 2>&1"};
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if (!(new File("/bin/sh")).canExecute()) {
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ArrayList<String> wincmd = new ArrayList<String>();
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wincmd.add("cmd");
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wincmd.add("/c");
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wincmd.add("start");
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wincmd.add("cmd");
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wincmd.add("/c");
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wincmd.add(sjavac + " >> " + stdouterrfile + " 2>&1");
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cmd = wincmd.toArray(new String[wincmd.size()]);
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}
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Process pp = null;
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try {
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pp = Runtime.getRuntime().exec(cmd);
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} catch (Exception e) {
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e.printStackTrace(err);
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e.printStackTrace(new PrintWriter(stdouterrfile));
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}
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StringBuilder rs = new StringBuilder();
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for (String s : cmd) {
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rs.append(s + " ");
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}
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return rs.toString();
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}
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// Do not spawn a background server, instead run it within the same JVM.
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Thread t = new Thread() {
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@Override
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public void run() {
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try {
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JavacServer.startServer(startserver, err);
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} catch (Throwable t) {
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t.printStackTrace(err);
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}
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}
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};
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t.start();
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return "";
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}
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/**
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* Expect this key on the next line read from the reader.
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*/
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private static boolean expect(BufferedReader in, String key) throws IOException {
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String s = in.readLine();
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if (s != null && s.equals(key)) {
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return true;
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}
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return false;
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}
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/**
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* Make a request to the server only to get the maximum possible heap size to use for compilations.
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*
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* @param port_file The port file used to synchronize creation of this server.
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* @param id The identify of the compilation.
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* @param out Standard out information.
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* @param err Standard err information.
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* @return The maximum heap size in bytes.
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*/
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public static SysInfo connectGetSysInfo(String serverSettings, PrintStream out, PrintStream err) {
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SysInfo sysinfo = new SysInfo(-1, -1);
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String id = Util.extractStringOption("id", serverSettings);
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String portfile = Util.extractStringOption("portfile", serverSettings);
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try {
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PortFile pf = getPortFile(portfile);
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useServer(serverSettings, new String[0],
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new HashSet<URI>(),
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new HashSet<URI>(),
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new HashMap<URI, Set<String>>(),
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new HashMap<String, Set<URI>>(),
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new HashMap<String, Set<String>>(),
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new HashMap<String, String>(),
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sysinfo, out, err);
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} catch (Exception e) {
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e.printStackTrace(err);
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}
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return sysinfo;
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}
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/**
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* Connect and compile using the javac server settings and the args. When using more advanced features, the sources_to_compile and visible_sources are
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* supplied to the server and meta data is returned in package_artifacts, package_dependencies and package_pubapis.
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*/
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private static int connectAndCompile(PortFile portFile, String id, String[] args,
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Set<URI> sourcesToCompile,
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Set<URI> visibleSources,
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Map<String, Set<URI>> packageArtifacts,
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Map<String, Set<String>> packageDependencies,
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Map<String, String> packagePublicApis,
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SysInfo sysinfo,
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PrintStream out,
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PrintStream err) {
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int rc = -3;
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try {
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int port = portFile.containsPortInfo() ? portFile.getPort() : 0;
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if (port == 0) {
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return ERROR_BUT_TRY_AGAIN;
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}
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long cookie = portFile.getCookie();
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// Acquire the localhost/127.0.0.1 address.
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InetAddress addr = InetAddress.getByName(null);
|
|
SocketAddress sockaddr = new InetSocketAddress(addr, port);
|
|
Socket sock = new Socket();
|
|
int timeoutMs = CONNECTION_TIMEOUT * 1000;
|
|
try {
|
|
sock.connect(sockaddr, timeoutMs);
|
|
} catch (java.net.ConnectException e) {
|
|
err.println("Could not connect to javac server found in portfile: " + portFile.getFilename() + " " + e);
|
|
return ERROR_BUT_TRY_AGAIN;
|
|
}
|
|
if (!sock.isConnected()) {
|
|
err.println("Could not connect to javac server found in portfile: " + portFile.getFilename());
|
|
return ERROR_BUT_TRY_AGAIN;
|
|
}
|
|
BufferedReader in = new BufferedReader(new InputStreamReader(sock.getInputStream()));
|
|
PrintWriter sockout = new PrintWriter(sock.getOutputStream());
|
|
|
|
sockout.println(PROTOCOL_COOKIE_VERSION);
|
|
sockout.println("" + cookie);
|
|
sockout.println(PROTOCOL_CWD);
|
|
sockout.println(System.getProperty("user.dir"));
|
|
sockout.println(PROTOCOL_ID);
|
|
sockout.println(id);
|
|
sockout.println(PROTOCOL_ARGS);
|
|
for (String s : args) {
|
|
StringBuffer buf = new StringBuffer();
|
|
String[] paths = s.split(File.pathSeparator);
|
|
int c = 0;
|
|
for (String path : paths) {
|
|
File f = new File(path);
|
|
if (f.isFile() || f.isDirectory()) {
|
|
buf.append(f.getAbsolutePath());
|
|
c++;
|
|
if (c < paths.length) {
|
|
buf.append(File.pathSeparator);
|
|
}
|
|
} else {
|
|
buf = new StringBuffer(s);
|
|
break;
|
|
}
|
|
}
|
|
sockout.println(buf.toString());
|
|
}
|
|
sockout.println(PROTOCOL_SOURCES_TO_COMPILE);
|
|
for (URI uri : sourcesToCompile) {
|
|
sockout.println(uri.toString());
|
|
}
|
|
sockout.println(PROTOCOL_VISIBLE_SOURCES);
|
|
for (URI uri : visibleSources) {
|
|
sockout.println(uri.toString());
|
|
}
|
|
sockout.println(PROTOCOL_END);
|
|
sockout.flush();
|
|
|
|
StringBuffer stdout = new StringBuffer();
|
|
StringBuffer stderr = new StringBuffer();
|
|
|
|
if (!expect(in, PROTOCOL_STDOUT)) {
|
|
return ERROR_FATAL;
|
|
}
|
|
// Load stdout
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_STDERR)) {
|
|
break;
|
|
}
|
|
stdout.append(l);
|
|
stdout.append('\n');
|
|
}
|
|
// Load stderr
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_PACKAGE_ARTIFACTS)) {
|
|
break;
|
|
}
|
|
stderr.append(l);
|
|
stderr.append('\n');
|
|
}
|
|
// Load the package artifacts
|
|
Set<URI> lastUriSet = null;
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_PACKAGE_DEPENDENCIES)) {
|
|
break;
|
|
}
|
|
if (l.length() > 1 && l.charAt(0) == '+') {
|
|
String pkg = l.substring(1);
|
|
lastUriSet = new HashSet<URI>();
|
|
packageArtifacts.put(pkg, lastUriSet);
|
|
} else if (l.length() > 1 && lastUriSet != null) {
|
|
lastUriSet.add(new URI(l.substring(1)));
|
|
}
|
|
}
|
|
// Load package dependencies
|
|
Set<String> lastPackageSet = null;
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_PACKAGE_PUBLIC_APIS)) {
|
|
break;
|
|
}
|
|
if (l.length() > 1 && l.charAt(0) == '+') {
|
|
String pkg = l.substring(1);
|
|
lastPackageSet = new HashSet<String>();
|
|
packageDependencies.put(pkg, lastPackageSet);
|
|
} else if (l.length() > 1 && lastPackageSet != null) {
|
|
lastPackageSet.add(l.substring(1));
|
|
}
|
|
}
|
|
// Load package pubapis
|
|
Map<String, StringBuffer> tmp = new HashMap<String, StringBuffer>();
|
|
StringBuffer lastPublicApi = null;
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_SYSINFO)) {
|
|
break;
|
|
}
|
|
if (l.length() > 1 && l.charAt(0) == '+') {
|
|
String pkg = l.substring(1);
|
|
lastPublicApi = new StringBuffer();
|
|
tmp.put(pkg, lastPublicApi);
|
|
} else if (l.length() > 1 && lastPublicApi != null) {
|
|
lastPublicApi.append(l.substring(1));
|
|
lastPublicApi.append("\n");
|
|
}
|
|
}
|
|
for (String p : tmp.keySet()) {
|
|
assert (packagePublicApis.get(p) == null);
|
|
String api = tmp.get(p).toString();
|
|
packagePublicApis.put(p, api);
|
|
}
|
|
// Now reading the max memory possible.
|
|
for (;;) {
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
return ERROR_FATAL;
|
|
}
|
|
if (l.equals(PROTOCOL_RETURN_CODE)) {
|
|
break;
|
|
}
|
|
if (l.startsWith("num_cores=") && sysinfo != null) {
|
|
sysinfo.numCores = Integer.parseInt(l.substring(10));
|
|
}
|
|
if (l.startsWith("max_memory=") && sysinfo != null) {
|
|
sysinfo.maxMemory = Long.parseLong(l.substring(11));
|
|
}
|
|
}
|
|
String l = in.readLine();
|
|
if (l == null) {
|
|
err.println("No return value from the server!");
|
|
return ERROR_FATAL;
|
|
}
|
|
rc = Integer.parseInt(l);
|
|
out.print(stdout);
|
|
err.print(stderr);
|
|
} catch (Exception e) {
|
|
e.printStackTrace(err);
|
|
}
|
|
return rc;
|
|
}
|
|
|
|
/**
|
|
* Run the server thread until it exits. Either because of inactivity or because the port file has been deleted by someone else, or overtaken by some other
|
|
* javac server.
|
|
*/
|
|
private void run(PortFile portFile, PrintStream err, int keepalive) {
|
|
boolean fileDeleted = false;
|
|
long timeSinceLastCompile;
|
|
try {
|
|
// Every 5 second (check_portfile_interval) we test if the portfile has disappeared => quit
|
|
// Or if the last request was finished more than 125 seconds ago => quit
|
|
// 125 = seconds_of_inactivity_before_shutdown+check_portfile_interval
|
|
serverSocket.setSoTimeout(CHECK_PORTFILE_INTERVAL*1000);
|
|
for (;;) {
|
|
try {
|
|
Socket s = serverSocket.accept();
|
|
CompilerThread ct = compilerPool.grabCompilerThread();
|
|
ct.setSocket(s);
|
|
compilerPool.execute(ct);
|
|
flushLog();
|
|
} catch (java.net.SocketTimeoutException e) {
|
|
if (compilerPool.numActiveRequests() > 0) {
|
|
// Never quit while there are active requests!
|
|
continue;
|
|
}
|
|
// If this is the timeout after the portfile
|
|
// has been deleted by us. Then we truly stop.
|
|
if (fileDeleted) {
|
|
log("Quitting because of "+(keepalive+CHECK_PORTFILE_INTERVAL)+" seconds of inactivity!");
|
|
break;
|
|
}
|
|
// Check if the portfile is still there.
|
|
if (!portFile.exists()) {
|
|
// Time to quit because the portfile was deleted by another
|
|
// process, probably by the makefile that is done building.
|
|
log("Quitting because portfile was deleted!");
|
|
flushLog();
|
|
break;
|
|
}
|
|
// Check if portfile.stop is still there.
|
|
if (portFile.markedForStop()) {
|
|
// Time to quit because another process touched the file
|
|
// server.port.stop to signal that the server should stop.
|
|
// This is necessary on some operating systems that lock
|
|
// the port file hard!
|
|
log("Quitting because a portfile.stop file was found!");
|
|
portFile.delete();
|
|
flushLog();
|
|
break;
|
|
}
|
|
// Does the portfile still point to me?
|
|
if (!portFile.stillMyValues()) {
|
|
// Time to quit because another build has started.
|
|
log("Quitting because portfile is now owned by another javac server!");
|
|
flushLog();
|
|
break;
|
|
}
|
|
|
|
// Check how long since the last request finished.
|
|
long diff = System.currentTimeMillis() - compilerPool.lastRequestFinished();
|
|
if (diff < keepalive * 1000) {
|
|
// Do not quit if we have waited less than 120 seconds.
|
|
continue;
|
|
}
|
|
// Ok, time to quit because of inactivity. Perhaps the build
|
|
// was killed and the portfile not cleaned up properly.
|
|
portFile.delete();
|
|
fileDeleted = true;
|
|
log("" + keepalive + " seconds of inactivity quitting in "
|
|
+ CHECK_PORTFILE_INTERVAL + " seconds!");
|
|
flushLog();
|
|
// Now we have a second 5 second grace
|
|
// period where javac remote requests
|
|
// that have loaded the data from the
|
|
// recently deleted portfile can connect
|
|
// and complete their requests.
|
|
}
|
|
}
|
|
} catch (Exception e) {
|
|
e.printStackTrace(err);
|
|
e.printStackTrace(theLog);
|
|
flushLog();
|
|
} finally {
|
|
compilerPool.shutdown();
|
|
}
|
|
long realTime = System.currentTimeMillis() - serverStart;
|
|
log("Shutting down.");
|
|
log("Total wall clock time " + realTime + "ms build time " + totalBuildTime + "ms");
|
|
flushLog();
|
|
}
|
|
|
|
public static void cleanup(String... args) {
|
|
String settings = Util.findServerSettings(args);
|
|
if (settings == null) return;
|
|
String portfile = Util.extractStringOption("portfile", settings);
|
|
String background = Util.extractStringOption("background", settings);
|
|
if (background != null && background.equals("false")) {
|
|
// If the server runs within this jvm, then delete the portfile,
|
|
// since this jvm is about to exit soon.
|
|
File f = new File(portfile);
|
|
f.delete();
|
|
}
|
|
}
|
|
}
|