root/src/noit_conf.h

Revision d5db0b89dd6ef5ab8baaa06225cd92898bd0dcea, 6.5 kB (checked in by Theo Schlossnagle <jesus@omniti.com>, 3 years ago)

automatic registration of module namespaces

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1 /*
2  * Copyright (c) 2007, OmniTI Computer Consulting, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are
7  * met:
8  *
9  *     * Redistributions of source code must retain the above copyright
10  *       notice, this list of conditions and the following disclaimer.
11  *     * Redistributions in binary form must reproduce the above
12  *       copyright notice, this list of conditions and the following
13  *       disclaimer in the documentation and/or other materials provided
14  *       with the distribution.
15  *     * Neither the name OmniTI Computer Consulting, Inc. nor the names
16  *       of its contributors may be used to endorse or promote products
17  *       derived from this software without specific prior written
18  *       permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32
33 #ifndef _NOIT_CONF_H
34 #define _NOIT_CONF_H
35
36 #include "noit_defines.h"
37 #include "utils/noit_hash.h"
38 #include "noit_console.h"
39
40 #include <uuid/uuid.h>
41 #include <pcre.h>
42
43 typedef void * noit_conf_section_t;
44
45 #define NOIT_CONF_T_USERDATA "noit::state::conf_t"
46 typedef struct {
47   char *path;
48   uuid_t current_check;
49   char filter_name[50];
50   char prompt[50];
51 } noit_conf_t_userdata_t;
52
53 /* seconds == 0 disable config journaling watchdog */
54 API_EXPORT(void) noit_conf_coalesce_changes(u_int32_t seconds);
55 /* Start the watchdog */
56 API_EXPORT(void) noit_conf_watch_and_journal_watchdog(int (*f)(void *), void *c);
57
58 /* marks the config as changed.. if you manipulate the XML tree in any way
59  * you must call this function to "let the system know."  This is used
60  * to notice changes which are in turn flushed out.
61  */
62 API_EXPORT(void) noit_conf_mark_changed();
63
64 API_EXPORT(void) noit_conf_init(const char *toplevel);
65 API_EXPORT(int) noit_conf_load(const char *path);
66 API_EXPORT(int) noit_conf_save(const char *path);
67 API_EXPORT(char *) noit_conf_config_filename();
68
69 API_EXPORT(void) noit_console_conf_init();
70
71 API_EXPORT(noit_conf_section_t)
72   noit_conf_get_section(noit_conf_section_t section, const char *path);
73 API_EXPORT(noit_conf_section_t *)
74   noit_conf_get_sections(noit_conf_section_t section, const char *path,
75                          int *cnt);
76
77 API_EXPORT(noit_hash_table *)
78   noit_conf_get_hash(noit_conf_section_t section, const char *path);
79 API_EXPORT(noit_hash_table *)
80   noit_conf_get_namespaced_hash(noit_conf_section_t section,
81                                 const char *path, const char *ns);
82
83 API_EXPORT(int) noit_conf_get_string(noit_conf_section_t section,
84                                      const char *path, char **value);
85
86 API_EXPORT(int) noit_conf_get_stringbuf(noit_conf_section_t section,
87                                         const char *path, char *value, int len);
88 API_EXPORT(int) noit_conf_get_int(noit_conf_section_t section,
89                                   const char *path, int *value);
90 API_EXPORT(int) noit_conf_string_to_int(const char *str);
91 API_EXPORT(int) noit_conf_get_float(noit_conf_section_t section,
92                                     const char *path, float *value);
93 API_EXPORT(float) noit_conf_string_to_float(const char *str);
94 API_EXPORT(int) noit_conf_get_boolean(noit_conf_section_t section,
95                                       const char *path, noit_boolean *value);
96 API_EXPORT(noit_boolean) noit_conf_string_to_boolean(const char *str);
97
98 API_EXPORT(int)
99   noit_conf_get_uuid(noit_conf_section_t section,
100                      const char *path, uuid_t out);
101
102 API_EXPORT(int) noit_conf_set_string(noit_conf_section_t section,
103                                      const char *path, const char *value);
104 API_EXPORT(int) noit_conf_set_int(noit_conf_section_t section,
105                                   const char *path, int value);
106 API_EXPORT(int) noit_conf_set_float(noit_conf_section_t section,
107                                     const char *path, float value);
108 API_EXPORT(int) noit_conf_set_boolean(noit_conf_section_t section,
109                                       const char *path, noit_boolean value);
110
111 API_EXPORT(int)
112   noit_conf_reload(noit_console_closure_t ncct,
113                    int argc, char **argv,
114                    noit_console_state_t *state, void *closure);
115 API_EXPORT(int)
116   noit_conf_write_terminal(noit_console_closure_t ncct,
117                            int argc, char **argv,
118                            noit_console_state_t *state, void *closure);
119 API_EXPORT(int)
120   noit_conf_write_file_console(noit_console_closure_t ncct,
121                                int argc, char **argv,
122                                noit_console_state_t *state, void *closure);
123 API_EXPORT(int)
124   noit_conf_write_file(char **err);
125
126 API_EXPORT(char *)
127   noit_conf_xml_in_mem(size_t *len);
128
129 API_EXPORT(int)
130   noit_conf_write_log();
131
132 API_EXPORT(void) noit_conf_log_init(const char *toplevel);
133 API_EXPORT(int) noit_conf_log_init_rotate(const char *, noit_boolean);
134
135 API_EXPORT(void) noit_conf_backingstore_remove(noit_conf_section_t node);
136 API_EXPORT(void) noit_conf_backingstore_dirty(noit_conf_section_t node);
137
138 API_EXPORT(void) noit_conf_set_namespace(const char *ns);
139
140 #define CONF_REMOVE(n) do { \
141   noit_conf_backingstore_remove(n); \
142 } while(0)
143
144 #define CONF_DIRTY(n) do { \
145  noit_conf_backingstore_dirty(n); \
146  noit_conf_mark_changed(); \
147 } while(0)
148
149 #define EXPOSE_CHECKER(name) \
150   API_EXPORT(pcre *) noit_conf_get_valid_##name##_checker()
151 #define DECLARE_CHECKER(name) \
152 static pcre *checker_valid_##name; \
153 pcre *noit_conf_get_valid_##name##_checker() { return checker_valid_##name; }
154 #define COMPILE_CHECKER(name, expr) do { \
155   const char *errorstr; \
156   int erroff; \
157   checker_valid_##name = pcre_compile(expr, 0, &errorstr, &erroff, NULL); \
158   if(! checker_valid_##name) { \
159     noitL(noit_error, "noit_conf error: compile checker %s failed: %s\n", \
160           #name, errorstr); \
161     exit(-1); \
162   } \
163 } while(0)
164
165 EXPOSE_CHECKER(name);
166
167 #endif
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