1 /* Copyright 1999-2005 The Apache Software Foundation or its licensors, as
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
19 * @brief Module Magic Number
21 * @defgroup APACHE_CORE_MMN Module Magic Number
22 * @ingroup APACHE_CORE
26 #ifndef APACHE_AP_MMN_H
27 #define APACHE_AP_MMN_H
30 * MODULE_MAGIC_NUMBER_MAJOR
31 * Major API changes that could cause compatibility problems for older modules
32 * such as structure size changes. No binary compatibility is possible across
33 * a change in the major version.
35 * MODULE_MAGIC_NUMBER_MINOR
36 * Minor API changes that do not cause binary compatibility problems.
37 * Should be reset to 0 when upgrading MODULE_MAGIC_NUMBER_MAJOR.
39 * See the MODULE_MAGIC_AT_LEAST macro below for an example.
43 * 20010224 (2.0.13-dev) MODULE_MAGIC_COOKIE reset to "AP20"
44 * 20010523 (2.0.19-dev) bump for scoreboard structure reordering
45 * 20010627 (2.0.19-dev) more API changes than I can count
46 * 20010726 (2.0.22-dev) more big API changes
47 * 20010808 (2.0.23-dev) dir d_is_absolute bit introduced, bucket changes, etc
48 * 20010825 (2.0.25-dev) removed d_is_absolute, introduced map_to_storage hook
49 * 20011002 (2.0.26-dev) removed 1.3-depreciated request_rec.content_language
50 * 20011127 (2.0.29-dev) bump for postconfig hook change, and removal of socket
51 * from connection record
52 * 20011212 (2.0.30-dev) bump for new used_path_info member of request_rec
53 * 20011218 (2.0.30-dev) bump for new sbh member of conn_rec, different
54 * declarations for scoreboard, new parameter to
55 * create_connection hook
56 * 20020102 (2.0.30-dev) bump for changed type of limit_req_body in
58 * 20020109 (2.0.31-dev) bump for changed shm and scoreboard declarations
59 * 20020111 (2.0.31-dev) bump for ETag fields added at end of cor_dir_config
60 * 20020114 (2.0.31-dev) mod_dav changed how it asks its provider to fulfill
62 * 20020118 (2.0.31-dev) Input filtering split of blocking and mode
63 * 20020127 (2.0.31-dev) bump for pre_mpm hook change
64 * 20020128 (2.0.31-dev) bump for pre_config hook change
65 * 20020218 (2.0.33-dev) bump for AddOutputFilterByType directive
66 * 20020220 (2.0.33-dev) bump for scoreboard.h structure change
67 * 20020302 (2.0.33-dev) bump for protocol_filter additions.
68 * 20020306 (2.0.34-dev) bump for filter type renames.
69 * 20020318 (2.0.34-dev) mod_dav's API for REPORT generation changed
70 * 20020319 (2.0.34-dev) M_INVALID changed, plus new M_* methods for RFC 3253
71 * 20020327 (2.0.35-dev) Add parameter to quick_handler hook
72 * 20020329 (2.0.35-dev) bump for addition of freelists to bucket API
73 * 20020329.1 (2.0.36) minor bump for new arg to opt fn ap_cgi_build_command
74 * 20020506 (2.0.37-dev) Removed r->boundary in request_rec.
75 * 20020529 (2.0.37-dev) Standardized the names of some apr_pool_*_set funcs
76 * 20020602 (2.0.37-dev) Bucket API change (metadata buckets)
77 * 20020612 (2.0.38-dev) Changed server_rec->[keep_alive_]timeout to apr time
78 * 20020625 (2.0.40-dev) Changed conn_rec->keepalive to an enumeration
79 * 20020628 (2.0.40-dev) Added filter_init to filter registration functions
80 * 20020903 (2.0.41-dev) APR's error constants changed
81 * 20020903.1 (2.1.0-dev) allow_encoded_slashes added to core_dir_config
82 * 20020903.2 (2.0.46-dev) add ap_escape_logitem
83 * 20030213.1 (2.1.0-dev) changed log_writer optional fn's to return previous
85 * 20030821 (2.1.0-dev) bumped mod_include's entire API
86 * 20030821.1 (2.1.0-dev) added XHTML doctypes
87 * 20030821.2 (2.1.0-dev) added ap_escape_errorlog_item
88 * 20030821.3 (2.1.0-dev) added ap_get_server_revision / ap_version_t
89 * 20040425 (2.1.0-dev) removed ap_add_named_module API
90 * changed ap_add_module, ap_add_loaded_module,
91 * ap_setup_prelinked_modules, ap_process_resource_config
92 * 20040425.1 (2.1.0-dev) Added ap_module_symbol_t and ap_prelinked_module_symbols
93 * 20050101.0 (2.1.2-dev) Axed misnamed http_method for http_scheme (which it was!)
94 * 20050127.0 (2.1.3-dev) renamed regex_t->ap_regex_t, regmatch_t->ap_regmatch_t,
95 * REG_*->AP_REG_*, removed reg* in place of ap_reg*;
97 * 20050217.0 (2.1.3-dev) Axed find_child_by_pid, mpm_*_completion_context (winnt mpm)
98 * symbols from the public sector, and decorated real_exit_code
99 * with ap_ in the win32 os.h.
100 * 20050305.0 (2.1.4-dev) added pid and generation fields to worker_score
101 * 20050305.1 (2.1.5-dev) added ap_vhost_iterate_given_conn.
102 * 20050305.2 (2.1.5-dev) added AP_INIT_TAKE_ARGV.
103 * 20050305.3 (2.1.5-dev) added Protocol Framework.
104 * 20050701.0 (2.1.7-dev) Bump MODULE_MAGIC_COOKIE to "AP21"!
105 * 20050701.1 (2.1.7-dev) trace_enable member added to core server_config
106 * 20050708.0 (2.1.7-dev) Bump MODULE_MAGIC_COOKIE to "AP22"!
107 * 20050708.1 (2.1.7-dev) add proxy request_status hook (minor)
108 * 20050919.0 (2.1.8-dev) mod_ssl ssl_ext_list optional function added
111 #define MODULE_MAGIC_COOKIE 0x41503232UL /* "AP22" */
113 #ifndef MODULE_MAGIC_NUMBER_MAJOR
114 #define MODULE_MAGIC_NUMBER_MAJOR 20050919
116 #define MODULE_MAGIC_NUMBER_MINOR 0 /* 0...n */
119 * Determine if the server's current MODULE_MAGIC_NUMBER is at least a
122 * Useful for testing for features.
123 * For example, suppose you wish to use the apr_table_overlap
124 * function. You can do this:
126 * #if AP_MODULE_MAGIC_AT_LEAST(19980812,2)
127 * ... use apr_table_overlap()
129 * ... alternative code which doesn't use apr_table_overlap()
132 * @param major The major module magic number
133 * @param minor The minor module magic number
134 * @deffunc AP_MODULE_MAGIC_AT_LEAST(int major, int minor)
136 #define AP_MODULE_MAGIC_AT_LEAST(major,minor) \
137 ((major) < MODULE_MAGIC_NUMBER_MAJOR \
138 || ((major) == MODULE_MAGIC_NUMBER_MAJOR \
139 && (minor) <= MODULE_MAGIC_NUMBER_MINOR))
141 /** @deprecated present for backwards compatibility */
142 #define MODULE_MAGIC_NUMBER MODULE_MAGIC_NUMBER_MAJOR
143 #define MODULE_MAGIC_AT_LEAST old_broken_macro_we_hope_you_are_not_using
145 #endif /* !APACHE_AP_MMN_H */