82 lines
3.3 KiB
Java
82 lines
3.3 KiB
Java
/*
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* Copyright (c) 2005, 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 sun.io;
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/**
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* Used to set the Windows error mode at VM initialization time.
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* <p>
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* The error mode decides whether the system will handle specific types of serious errors
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* or whether the process will handle them.
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*
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* @since 1.6
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*/
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public class Win32ErrorMode {
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// The system does not display the critical-error-handler message box. Instead,
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// the system sends the error to the calling process.
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private static final long SEM_FAILCRITICALERRORS = 0x0001;
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// The system does not display the general-protection-fault message box. This flag should
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// only be set by debugging applications that handle general protection (GP) faults themselves
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// with an exception handler.
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private static final long SEM_NOGPFAULTERRORBOX = 0x0002;
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// The system automatically fixes memory alignment faults and makes them invisible
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// to the application. It does this for the calling process and any descendant processes.
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private static final long SEM_NOALIGNMENTFAULTEXCEPT = 0x0004;
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// The system does not display a message box when it fails to find a file. Instead,
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// the error is returned to the calling process.
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private static final long SEM_NOOPENFILEERRORBOX = 0x8000;
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private Win32ErrorMode() {
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}
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/**
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* Invoke at VM initialization time to disable the critical error message box.
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* <p>
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* The critial error message box is disabled unless the system property
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* <tt>sun.io.allowCriticalErrorMessageBox</tt> is set to something other than
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* <code>false</code>. This includes the empty string.
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* <p>
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* This method does nothing if invoked after VM and class library initialization
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* has completed.
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*/
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public static void initialize() {
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if (!sun.misc.VM.isBooted()) {
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String s = (String) System.getProperty("sun.io.allowCriticalErrorMessageBox");
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if (s == null || s.equals(Boolean.FALSE.toString())) {
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long mode = setErrorMode(0);
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mode |= SEM_FAILCRITICALERRORS;
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setErrorMode(mode);
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}
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}
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}
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// Win32 SetErrorMode
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private static native long setErrorMode(long mode);
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}
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