1: /*************************************************************************
2: * (C) 2008 AITNET ltd - Sofia/Bulgaria - <misho@aitbg.com>
3: * by Michael Pounov <misho@openbsd-bg.org>
4: *
5: * $Author: misho $
6: * $Id: aitcfg.h,v 1.19 2023/01/23 23:27:26 misho Exp $
7: *
8: **************************************************************************
9: The ELWIX and AITNET software is distributed under the following
10: terms:
11:
12: All of the documentation and software included in the ELWIX and AITNET
13: Releases is copyrighted by ELWIX - Sofia/Bulgaria <info@elwix.org>
14:
15: Copyright 2004 - 2023
16: by Michael Pounov <misho@elwix.org>. All rights reserved.
17:
18: Redistribution and use in source and binary forms, with or without
19: modification, are permitted provided that the following conditions
20: are met:
21: 1. Redistributions of source code must retain the above copyright
22: notice, this list of conditions and the following disclaimer.
23: 2. Redistributions in binary form must reproduce the above copyright
24: notice, this list of conditions and the following disclaimer in the
25: documentation and/or other materials provided with the distribution.
26: 3. All advertising materials mentioning features or use of this software
27: must display the following acknowledgement:
28: This product includes software developed by Michael Pounov <misho@elwix.org>
29: ELWIX - Embedded LightWeight unIX and its contributors.
30: 4. Neither the name of AITNET nor the names of its contributors
31: may be used to endorse or promote products derived from this software
32: without specific prior written permission.
33:
34: THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND
35: ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
36: IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
37: ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
38: FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
39: DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
40: OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
41: HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
42: LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
43: OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
44: SUCH DAMAGE.
45: */
46: #ifndef __AITCFG_H
47: #define __AITCFG_H
48:
49:
50: #include <pthread.h>
51: #include <elwix.h>
52:
53:
54: struct tagCfg {
55: ait_val_t cfg_sec;
56: ait_val_t cfg_attr;
57: ait_val_t cfg_val;
58: int cfg_quoted;
59:
60: TAILQ_ENTRY(tagCfg) cfg_next;
61: RB_ENTRY(tagCfg) cfg_node;
62: };
63: typedef struct tagRC {
64: pthread_mutex_t rc_mtx;
65:
66: struct tagCfg *tqh_first;
67: struct tagCfg **tqh_last;
68: struct tagCfg *rbh_root;
69: } cfg_root_t;
70: #define CFG_RC_LOCK(x) pthread_mutex_lock(&(x)->rc_mtx)
71: #define CFG_RC_UNLOCK(x) pthread_mutex_unlock(&(x)->rc_mtx)
72:
73: #define CFG_SECTION(x) (assert((x)), AIT_GET_LIKE(&((struct tagCfg*) (x))->cfg_sec, const char*))
74: #define CFG_ATTRIBUTE(x) (assert((x)), AIT_GET_LIKE(&((struct tagCfg*) (x))->cfg_attr, const char*))
75: #define CFG_VALUE(x) (assert((x)), AIT_GET_LIKE(&((struct tagCfg*) (x))->cfg_val, const char*))
76:
77:
78: // cfg_GetErrno() Get error code of last operation
79: int cfg_GetErrno();
80: // cfg_GetError() Get error text of last operation
81: const char *cfg_GetError();
82:
83:
84: /*
85: * Macros for config library.
86: */
87: #define CFG_ISEMPTY(x) RB_EMPTY((x))
88:
89:
90: /*
91: * cfgInitConfig() - Init config root
92: *
93: * return: NULL error or !=NULL allocated config root
94: */
95: cfg_root_t *cfgInitConfig();
96: /*
97: * cfgEndConfig() - Free resources & config root
98: *
99: * @pcfg = Config root
100: * return: none
101: */
102: void cfgEndConfig(cfg_root_t **pcfg);
103: /*
104: * cfgLoadConfig() - Load config from file
105: *
106: * @cfgName = Config filename
107: * @cfg = Config root
108: * return: -1 error or 0 ok
109: */
110: int cfgLoadConfig(const char *cfgName, cfg_root_t * __restrict cfg);
111: /*
112: * cfgUnloadConfig() - Unload config from memory and destroy resources
113: *
114: * @cfg = Config root
115: * return: none
116: */
117: void cfgUnloadConfig(cfg_root_t * __restrict cfg);
118: /*
119: * cfgClearConfig() - Clear config and free resources
120: *
121: * @cfg = Config root
122: * return: none
123: */
124: void cfgClearConfig(cfg_root_t * __restrict cfg);
125: /*
126: * cfgCreateConfig() - Create config file from memory
127: *
128: * @csConfigName = New config filename
129: * @cfg = Config root
130: * @whitespace = Additional whitespace characters to file
131: * return: -1 error or 0 ok
132: */
133: int cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg,
134: int whitespace);
135:
136: /*
137: * cfgReadLines() - Read custom lines and add new item at config root
138: *
139: * @f = File resource
140: * @delim = Custom delimiter, if =NULL default is '='
141: * @end = Custom user end of file, if =NULL default is EOF
142: * @cfg = Config root
143: * return: -1 error or 0 ok
144: */
145: int cfgReadLines(FILE *f, const char *delim, const char *end,
146: cfg_root_t * __restrict cfg);
147: /*
148: * cfgWriteLines() - Write custom lines and export data to variable
149: *
150: * @f = File resource
151: * @delim = Custom delimiter, if =NULL default is '='
152: * @eol = End of line string, if =NULL default is "\n"
153: * @section = Export only section, if =NULL default is all
154: * @cfg = Config root
155: * return: =NULL error or !=NULL exported data, must be free after use with ait_freeVar()
156: */
157: ait_val_t *cfgWriteLines(FILE *f, const char *delim, const char *eol,
158: const char *section, cfg_root_t * __restrict cfg);
159: /*
160: * cfgReadConfig() - Read file and add new item at config root
161: *
162: * @f = File resource
163: * @cfg = Config root
164: * return: -1 error or 0 ok
165: */
166: int cfgReadConfig(FILE *f, cfg_root_t * __restrict cfg);
167: /*
168: * cfgWriteConfig() - Write config from memory
169: *
170: * @f = File handle
171: * @cfg = Config root
172: * @whitespace = Additional whitespace characters to file
173: * return: -1 error or 0 ok
174: */
175: int cfgWriteConfig(FILE *f, cfg_root_t * __restrict cfg, int whitespace);
176: /*
177: * cfgWriteConfigRaw() - Write config from memory by list
178: *
179: * @f = File handle
180: * @cfg = Config root
181: * @whitespace = Additional whitespace characters to file
182: * return: -1 error or 0 ok
183: */
184: int cfgWriteConfigRaw(FILE *f, cfg_root_t * __restrict cfg, int whitespace);
185: /*
186: * cfgConcatConfig() - Concat two configs into one
187: *
188: * @cfg = Config root
189: * @add_cfg = Concated config will be destroy after merge
190: * return: -1 error or 0 ok
191: */
192: int cfgConcatConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg);
193: /*
194: * cfgMergeConfig() - Marge two list in one cfg and destroy add_cfg
195: *
196: * @cfg = Config root of main list
197: * @add_cfg = Merged config will be destroy after merge
198: * return: -1 error or 0 ok
199: */
200: int cfgMergeConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg);
201:
202: /*
203: * cfg_dumpCfg() - dump config data
204: *
205: * @cfg = Config root
206: * return: none
207: */
208: void cfg_dumpCfg(cfg_root_t * __restrict cfg);
209: /*
210: * cfg_getSection() - Get entire section attributes into array
211: *
212: * @cfg = Config root
213: * @csSec = Config section //[{csSec}]
214: * return: NULL not found or !=NULL allocated array, must free with array_Destroy() after use!
215: */
216: array_t *cfg_getSection(cfg_root_t * __restrict cfg, const char *csSec);
217: /*
218: * cfg_findAttribute() - Find attribute position in config file
219: *
220: * @cfg = Config root
221: * @csSec = Config section //[{csSec}]
222: * @csAttr = Config attribute //{csAttr} = ...
223: * return: 0 not found item, -1 error or >0 position in list
224: */
225: int cfg_findAttribute(cfg_root_t * __restrict cfg,
226: const char *csSec, const char *csAttr);
227: /*
228: * cfg_getAttribute() - Get item from config and return value from it
229: *
230: * @cfg = Config root
231: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
232: * @csAttr = Config attribute //{csAttr} = ...
233: * return: NULL item not found or null parameters, !=NULL value const string
234: */
235: const char *cfg_getAttribute(cfg_root_t * __restrict cfg,
236: const char *csSec, const char *csAttr);
237: /*
238: * cfg_getAttributeLong() - Get item as long from config and return value from it
239: *
240: * @cfg = Config root
241: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
242: * @csAttr = Config attribute //{csAttr} = ...
243: * return: value
244: */
245: long cfg_getAttributeLong(cfg_root_t * __restrict cfg,
246: const char *csSec, const char *csAttr);
247: /*
248: * cfg_getAttributeLLong() - Get item as long long from config and return value from it
249: *
250: * @cfg = Config root
251: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
252: * @csAttr = Config attribute //{csAttr} = ...
253: * return: value
254: */
255: long long
256: cfg_getAttributeLLong(cfg_root_t * __restrict cfg,
257: const char *csSec, const char *csAttr);
258: /*
259: * cfg_getAttributeDouble() - Get item as double from config and return value from it
260: *
261: * @cfg = Config root
262: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
263: * @csAttr = Config attribute //{csAttr} = ...
264: * return: value
265: */
266: double cfg_getAttributeDouble(cfg_root_t * __restrict cfg,
267: const char *csSec, const char *csAttr);
268: /*
269: * cfg_getAttributeLDouble() - Get item as long double from config and return value from it
270: *
271: * @cfg = Config root
272: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
273: * @csAttr = Config attribute //{csAttr} = ...
274: * return: value
275: */
276: long double cfg_getAttributeLDouble(cfg_root_t * __restrict cfg,
277: const char *csSec, const char *csAttr);
278: /*
279: * cfg_setAttribute() - Set item in config or adding new item if not exists
280: *
281: * @cfg = Config root
282: * @csSec = Config section //[{csSec}], if NULL set in *default* section
283: * @csAttr = Config attribute //{csAttr} = ...
284: * @csVal = Config value //... = {csVal} to setup
285: * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item
286: */
287: int cfg_setAttribute(cfg_root_t * __restrict cfg, const char *csSec,
288: const char *csAttr, const char *csVal);
289: /*
290: * cfg_unsetAttribute() - Unset item from config and free resources
291: *
292: * @cfg = Config root
293: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
294: * @csAttr = Config attribute //{csAttr} = ...
295: * return: 0 item not found, -1 error or 1 removed item
296: */
297: int cfg_unsetAttribute(cfg_root_t * __restrict cfg, const char *csSec,
298: const char *csAttr);
299:
300: /*
301: * cfg_loadAttribute() - Get guarded attribute, if not found item return *default value*
302: *
303: * @cfg = Config root
304: * @csSec = Config section //[{csSec}], if NULL unset in *default* section
305: * @csAttr = Config attribute //{csAttr} = ...
306: * @val = Return buffer for item Value //... = {val}
307: * @csDefValue = *Default Value* for return in //{val}, if not found item in config
308: * return: 0 item not found, -1 error or >0 number of copied bytes in //{val}
309: */
310: int cfg_loadAttribute(cfg_root_t * __restrict cfg, const char *csSec,
311: const char *csAttr, ait_val_t * __restrict val, const char *csDefValue);
312:
313:
314: #endif
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