JDK14/Java14源码在线阅读

/*
 * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package sun.io;

/**
 * Used to set the Windows error mode at VM initialization time.
 * <p>
 * The error mode decides whether the system will handle specific types of serious errors
 * or whether the process will handle them.
 *
 * @since 1.6
 */
public class Win32ErrorMode {

    // The system does not display the critical-error-handler message box. Instead,
    // the system sends the error to the calling process.
    private static final long SEM_FAILCRITICALERRORS     = 0x0001;

    // The system does not display the general-protection-fault message box. This flag should
    // only be set by debugging applications that handle general protection (GP) faults themselves
    // with an exception handler.
    private static final long SEM_NOGPFAULTERRORBOX      = 0x0002;

    // The system automatically fixes memory alignment faults and makes them invisible
    // to the application. It does this for the calling process and any descendant processes.
    private static final long SEM_NOALIGNMENTFAULTEXCEPT = 0x0004;

    // The system does not display a message box when it fails to find a file. Instead,
    // the error is returned to the calling process.
    private static final long SEM_NOOPENFILEERRORBOX     = 0x8000;

    private Win32ErrorMode() {
    }

    /**
     * Invoke at VM initialization time to disable the critical error message box.
     * <p>
     * The critial error message box is disabled unless the system property
     * {@code sun.io.allowCriticalErrorMessageBox} is set to something other than
     * {@code false}. This includes the empty string.
     * <p>
     * This method does nothing if invoked after VM and class library initialization
     * has completed.
     */
    public static void initialize() {
        if (!jdk.internal.misc.VM.isBooted()) {

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