001/*
002 * BridJ - Dynamic and blazing-fast native interop for Java.
003 * http://bridj.googlecode.com/
004 *
005 * Copyright (c) 2010-2013, Olivier Chafik (http://ochafik.com/)
006 * All rights reserved.
007 *
008 * Redistribution and use in source and binary forms, with or without
009 * modification, are permitted provided that the following conditions are met:
010 * 
011 *     * Redistributions of source code must retain the above copyright
012 *       notice, this list of conditions and the following disclaimer.
013 *     * Redistributions in binary form must reproduce the above copyright
014 *       notice, this list of conditions and the following disclaimer in the
015 *       documentation and/or other materials provided with the distribution.
016 *     * Neither the name of Olivier Chafik nor the
017 *       names of its contributors may be used to endorse or promote products
018 *       derived from this software without specific prior written permission.
019 * 
020 * THIS SOFTWARE IS PROVIDED BY OLIVIER CHAFIK AND CONTRIBUTORS ``AS IS'' AND ANY
021 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
022 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
023 * DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
024 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
025 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
026 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
027 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
028 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
029 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
030 */
031package org.bridj.ann;
032
033import java.lang.annotation.ElementType;
034import java.lang.annotation.Retention;
035import java.lang.annotation.RetentionPolicy;
036import java.lang.annotation.Target;
037
038/**
039 * Forbid direct assembly wiring of a native method.<br>
040 * On select platforms and when some conditions are met, BridJ connects the
041 * native code to Java using optimized assembly glues, which might not be as
042 * stable as using <a href="http://dyncall.org/">dyncall</a> (BridJ's ffi
043 * library).<br>
044 * In case of unexplained crash / bug, one should first try to set the
045 * BRIDJ_DIRECT=0 environment variable or set the bridj.direct=false Java
046 * property.<br>
047 * If this solves the issue, <a
048 * href="http://code.google.com/p/nativelibs4java/issues/entry">a bug should be
049 * filed</a> and this annotation can be used as a workaround to selectively
050 * disable raw calls for some methods.
051 *
052 * @author ochafik
053 */
054@Retention(RetentionPolicy.RUNTIME)
055@Target({ElementType.METHOD, ElementType.TYPE})
056public @interface DisableDirect {
057}