| /* ==================================================================== |
| * The Apache Software License, Version 1.1 |
| * |
| * Copyright (c) 2000-2001 The Apache Software Foundation. All rights |
| * reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in |
| * the documentation and/or other materials provided with the |
| * distribution. |
| * |
| * 3. The end-user documentation included with the redistribution, |
| * if any, must include the following acknowledgment: |
| * "This product includes software developed by the |
| * Apache Software Foundation (http://www.apache.org/)." |
| * Alternately, this acknowledgment may appear in the software itself, |
| * if and wherever such third-party acknowledgments normally appear. |
| * |
| * 4. The names "Apache" and "Apache Software Foundation" must |
| * not be used to endorse or promote products derived from this |
| * software without prior written permission. For written |
| * permission, please contact apache@apache.org. |
| * |
| * 5. Products derived from this software may not be called "Apache", |
| * nor may "Apache" appear in their name, without prior written |
| * permission of the Apache Software Foundation. |
| * |
| * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR |
| * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF |
| * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, |
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT |
| * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| * ==================================================================== |
| * |
| * This software consists of voluntary contributions made by many |
| * individuals on behalf of the Apache Software Foundation. For more |
| * information on the Apache Software Foundation, please see |
| * <http://www.apache.org/>. |
| */ |
| |
| #ifndef APACHE_AP_MMN_H |
| #define APACHE_AP_MMN_H |
| |
| /** |
| * @package Module Magic Number |
| */ |
| |
| /* |
| * MODULE_MAGIC_NUMBER_MAJOR |
| * Major API changes that could cause compatibility problems for older modules |
| * such as structure size changes. No binary compatibility is possible across |
| * a change in the major version. |
| * |
| * MODULE_MAGIC_NUMBER_MINOR |
| * Minor API changes that do not cause binary compatibility problems. |
| * Should be reset to 0 when upgrading MODULE_MAGIC_NUMBER_MAJOR. |
| * |
| * See the MODULE_MAGIC_AT_LEAST macro below for an example. |
| */ |
| |
| /* |
| * 20010224 (2.0.13-dev) MODULE_MAGIC_COOKIE reset to "AP20" |
| */ |
| |
| #define MODULE_MAGIC_COOKIE 0x41503230UL /* "AP20" */ |
| |
| #ifndef MODULE_MAGIC_NUMBER_MAJOR |
| #define MODULE_MAGIC_NUMBER_MAJOR 20010224 |
| #endif |
| #define MODULE_MAGIC_NUMBER_MINOR 1 /* 0...n */ |
| #define MODULE_MAGIC_NUMBER MODULE_MAGIC_NUMBER_MAJOR /* backward compat */ |
| |
| /** |
| * Determine if the server's current MODULE_MAGIC_NUMBER is at least a |
| * specified value. |
| * <PRE> |
| * Useful for testing for features. |
| * For example, suppose you wish to use the apr_table_overlap |
| * function. You can do this: |
| * |
| * #if MODULE_MAGIC_AT_LEAST(19980812,2) |
| * ... use apr_table_overlap() |
| * #else |
| * ... alternative code which doesn't use apr_table_overlap() |
| * #endif |
| * </PRE> |
| * @param major The major module magic number |
| * @param minor The minor module magic number |
| * @deffunc MODULE_MAGIC_AT_LEAST(int major, int minor) |
| */ |
| #define MODULE_MAGIC_AT_LEAST(major,minor) \ |
| ((major) > MODULE_MAGIC_NUMBER_MAJOR \ |
| || ((major) == MODULE_MAGIC_NUMBER_MAJOR \ |
| && (minor) >= MODULE_MAGIC_NUMBER_MINOR)) |
| |
| #endif /* !APACHE_AP_MMN_H */ |
