--- libaitcfg/inc/aitcfg.h 2009/09/09 09:07:31 1.2 +++ libaitcfg/inc/aitcfg.h 2012/04/04 13:11:49 1.7 @@ -3,54 +3,73 @@ * by Michael Pounov * * $Author: misho $ -* $Id: aitcfg.h,v 1.2 2009/09/09 09:07:31 misho Exp $ +* $Id: aitcfg.h,v 1.7 2012/04/04 13:11:49 misho Exp $ * -*************************************************************************/ +************************************************************************** +The ELWIX and AITNET software is distributed under the following +terms: + +All of the documentation and software included in the ELWIX and AITNET +Releases is copyrighted by ELWIX - Sofia/Bulgaria + +Copyright 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012 + by Michael Pounov . 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. All advertising materials mentioning features or use of this software + must display the following acknowledgement: +This product includes software developed by Michael Pounov +ELWIX - Embedded LightWeight unIX and its contributors. +4. Neither the name of AITNET nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + +THIS SOFTWARE IS PROVIDED BY AITNET AND CONTRIBUTORS ``AS IS'' AND +ANY EXPRESS 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 REGENTS OR 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. +*/ #ifndef __AITCFG_H #define __AITCFG_H -struct tagPair { - unsigned int uLine; - unsigned char *psSection; - unsigned char *psAttribute; - unsigned char *psValue; - struct tagPair *sle_next; -}; +#include +#include +#include -struct tagHead { - struct tagPair *slh_first; -}; -typedef struct tagHead sl_config; +struct tagCfg { + ait_val_t cfg_sec; + ait_val_t cfg_attr; + ait_val_t cfg_val; -/* - * InitConfig() Head initializing function for config - * @cfg = New head element for init - * return: 0 ok; -1 error:: new head element is null -*/ -inline int InitConfig(sl_config * __restrict cfg); -/* - * CreateConfig() Create config file from memory - * @csConfigName = New config filename - * @cfg = Head list element - * return: 0 ok; -1 error:: can`t save new config -*/ -int CreateConfig(const char *csConfigName, sl_config * __restrict cfg); -/* - * LoadConfig() Load config from file - * @csConfigName = Filename of config - * @cfg = Head list element - * return: 0 ok; -1 error:: can`t load config -*/ -int LoadConfig(const char *csConfigName, sl_config * __restrict cfg); -/* - * UnloadConfig() Unload config from memory and free resources - * @cfg = Head list element -*/ -void UnloadConfig(sl_config * __restrict cfg); + SLIST_ENTRY(tagCfg) cfg_next; + RB_ENTRY(tagCfg) cfg_node; +}; +typedef struct tagRC { + pthread_mutex_t rc_mtx; + struct tagCfg *slh_first; + struct tagCfg *rbh_root; +} cfg_root_t; +#define CFG_RC_LOCK(x) pthread_mutex_lock(&(x)->rc_mtx) +#define CFG_RC_UNLOCK(x) pthread_mutex_unlock(&(x)->rc_mtx) + // cfg_GetErrno() Get error code of last operation inline int cfg_GetErrno(); // cfg_GetError() Get error text of last operation @@ -58,67 +77,132 @@ inline const char *cfg_GetError(); /* - * ReadConfig() Read from file and add new item to config list - * @f = file resource - * @cfg = Head list element - * return: 0 ok; -1 error:: can`t allocate memory -*/ -int ReadConfig(FILE *f, sl_config * __restrict cfg); + * Macros for config library. + */ +#define CFG_ISEMPTY(x) RB_EMPTY((x)) + + /* - * WriteConfig() Write to file from items in config list - * @f = file resource - * @cfg = Head list element - * return: 0 ok; -1 error:: can`t write to file -*/ -int WriteConfig(FILE *f, sl_config * __restrict cfg); + * cfgInitConfig() - Init config root + * + * @cfg = Config root + * return: -1 error or 0 ok + */ +int cfgInitConfig(cfg_root_t * __restrict cfg); +/* + * cfgLoadConfig() - Load config from file + * + * @cfgName = Config filename + * @cfg = Config root + * return: -1 error or 0 ok + */ +int cfgLoadConfig(const char *cfgName, cfg_root_t * __restrict cfg); +/* + * cfgUnloadConfig() - Unload config from memory and free resources + * + * @cfg = Config root + * return: none + */ +void cfgUnloadConfig(cfg_root_t * __restrict cfg); +/* + * cfgCreateConfig() - Create config file from memory + * + * @csConfigName = New config filename + * @cfg = Config root + * @whitespace = Additional whitespace characters to file + * return: -1 error or 0 ok + */ +int cfgCreateConfig(const char *csConfigName, cfg_root_t * __restrict cfg, + int whitespace); +/* + * cfgReadConfig() - Read file and add new item at config root + * + * @f = File resource + * @cfg = Config root + * return: -1 error or 0 ok + */ +int cfgReadConfig(FILE *f, cfg_root_t * __restrict cfg); +/* + * cfgWriteConfig() - Write config from memory + * + * @f = File handle + * @cfg = Config root + * @whitespace = Additional whitespace characters to file + * return: -1 error or 0 ok + */ +int cfgWriteConfig(FILE *f, cfg_root_t * __restrict cfg, int whitespace); +/* + * cfgConcatConfig() - Concat two configs into one + * + * @cfg = Config root + * @add_cfg = Concated config will be destroy after merge + * return: -1 error or 0 ok + */ +int cfgConcatConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg); +/* + * cfgMergeConfig() - Marge two list in one cfg and destroy add_cfg + * + * @cfg = Config root of main list + * @add_cfg = Merged config will be destroy after merge + * return: -1 error or 0 ok + */ +int cfgMergeConfig(cfg_root_t * __restrict cfg, cfg_root_t * __restrict add_cfg); /* - * cfg_FindAttribute() Find attribute position in config list - * @cfg = Head list element + * cfg_findAttribute() - Find attribute position in config file + * + * @cfg = Config root * @csSec = Config section //[{csSec}] * @csAttr = Config attribute //{csAttr} = ... - * return: 0 not found item; -1 error: null parameters; >0 position in list -*/ -inline int cfg_FindAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr); + * return: 0 not found item, -1 error or >0 position in list + */ +inline int cfg_findAttribute(cfg_root_t * __restrict cfg, + const char *csSec, const char *csAttr); /* - * cfg_SetAttribute() Set item in config list or add new item if not exists - * @cfg = Head list element + * cfg_getAttribute() - Get item from config and return value from it + * + * @cfg = Config root + * @csSec = Config section //[{csSec}], if NULL unset in *default* section + * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute + * return: NULL item not found or null parameters, !=NULL value const string + */ +inline const char *cfg_getAttribute(cfg_root_t * __restrict cfg, + const char *csSec, const char *csAttr); +/* + * cfg_setAttribute() - Set item in config or adding new item if not exists + * + * @cfg = Config root * @csSec = Config section //[{csSec}], if NULL set in *default* section - * @csAttr = Config attribute //{csAttr} = ..., if NULL set as *any* attribute + * @csAttr = Config attribute //{csAttr} = ... * @csVal = Config value //... = {csVal} to setup - * return: 0 nothing changed, -1 error: not enough memory; 1 find and update item; 2 added new item -*/ -int cfg_SetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr, const u_char *csVal); + * return: 0 nothing changed, -1 error, 1 found and updated item or 2 added new item + */ +int cfg_setAttribute(cfg_root_t * __restrict cfg, const char *csSec, + const char *csAttr, const char *csVal); /* - * cfg_UnsetAttribute() Unset item from config list and free resources - * @cfg = Head list element + * cfg_unsetAttribute() - Unset item from config and free resources + * + * @cfg = Config root * @csSec = Config section //[{csSec}], if NULL unset in *default* section - * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute - * return: 0 item not found, -1 error: null parameters; >0 position in list -*/ -int cfg_UnsetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr); -/* - * cfg_GetAttribute() Get item from config list and return his value - * @cfg = Head list element - * @csSec = Config section //[{csSec}], if NULL unset in *default* section - * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute - * return: NULL item not found or null parameters; !=NULL value const string -*/ -inline const u_char *cfg_GetAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr); + * @csAttr = Config attribute //{csAttr} = ... + * return: 0 item not found, -1 error or 1 removed item + */ +int cfg_unsetAttribute(cfg_root_t * __restrict cfg, const char *csSec, + const char *csAttr); /* - * cfg_LoadAttribute() Extended get attribute, if not found item return *default value* - * @cfg = Head list element + * cfg_loadAttribute() - Get guarded attribute, if not found item return *default value* + * + * @cfg = Config root * @csSec = Config section //[{csSec}], if NULL unset in *default* section - * @csAttr = Config attribute //{csAttr} = ..., if NULL unset as *any* attribute - * @psVal = Return buffer for item Value //... = {psVal} - * @ValLen = Length of buffer //{psVal} for return - * @csDefValue = *Default Value* for return in //{psVal}, if not found item in config list - * return: 0 item not found, -1 error: null parameters; >0 number of copied bytes in //{psVal} -*/ -int cfg_LoadAttribute(sl_config * __restrict cfg, const u_char *csSec, const u_char *csAttr, - u_char * __restrict psVal, int ValLen, const char *csDefValue); + * @csAttr = Config attribute //{csAttr} = ... + * @val = Return buffer for item Value //... = {val} + * @csDefValue = *Default Value* for return in //{val}, if not found item in config + * return: 0 item not found, -1 error or >0 number of copied bytes in //{val} + */ +int cfg_loadAttribute(cfg_root_t * __restrict cfg, const char *csSec, + const char *csAttr, ait_val_t * __restrict val, const char *csDefValue); #endif