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/*-
* BSD LICENSE
*
* Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Intel Corporation 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 THE COPYRIGHT HOLDERS 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 COPYRIGHT
* OWNER 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 __INCLUDE_RTE_CFGFILE_H__
#define __INCLUDE_RTE_CFGFILE_H__
#ifdef __cplusplus
extern "C" {
#endif
/**
* @file
* RTE Configuration File
*
* This library allows reading application defined parameters from standard
* format configuration file.
*
***/
#define CFG_NAME_LEN 32
#define CFG_VALUE_LEN 64
/** Configuration file */
struct rte_cfgfile;
/** Configuration file entry */
struct rte_cfgfile_entry {
char name[CFG_NAME_LEN]; /**< Name */
char value[CFG_VALUE_LEN]; /**< Value */
};
/**
* Open config file
*
* @param filename
* Config file name
* @param flags
* Config file flags, Reserved for future use. Must be set to 0.
* @return
* Handle to configuration file
*/
struct rte_cfgfile *rte_cfgfile_load(const char *filename, int flags);
/**
* Get number of sections in config file
*
* @param cfg
* Config file
* @param sec_name
* Section name
* @param length
* Maximum section name length
* @return
* 0 on success, error code otherwise
*/
int rte_cfgfile_num_sections(struct rte_cfgfile *cfg, const char *sec_name,
size_t length);
/**
* Get name of all config file sections.
*
* Fills in the array sections with the name of all the sections in the file
* (up to the number of max_sections sections).
*
* @param cfg
* Config file
* @param sections
* Array containing section names after successful invocation. Each elemen
* of this array should be preallocated by the user with at least
* CFG_NAME_LEN characters.
* @param max_sections
* Maximum number of section names to be stored in sections array
* @return
* 0 on success, error code otherwise
*/
int rte_cfgfile_sections(struct rte_cfgfile *cfg, char *sections[],
int max_sections);
/**
* Check if given section exists in config file
*
* @param cfg
* Config file
* @param sectionname
* Section name
* @return
* TRUE (value different than 0) if section exists, FALSE (value 0) otherwise
*/
int rte_cfgfile_has_section(struct rte_cfgfile *cfg, const char *sectionname);
/**
* Get number of entries in given config file section
*
* @param cfg
* Config file
* @param sectionname
* Section name
* @return
* Number of entries in section
*/
int rte_cfgfile_section_num_entries(struct rte_cfgfile *cfg,
const char *sectionname);
/** Get section entries as key-value pairs
*
* @param cfg
* Config file
* @param sectionname
* Section name
* @param entries
* Pre-allocated array of at least max_entries entries where the section
* entries are stored as key-value pair after successful invocation
* @param max_entries
* Maximum number of section entries to be stored in entries array
* @return
* 0 on success, error code otherwise
*/
int rte_cfgfile_section_entries(struct rte_cfgfile *cfg,
const char *sectionname,
struct rte_cfgfile_entry *entries,
int max_entries);
/** Get value of the named entry in named config file section
*
* @param cfg
* Config file
* @param sectionname
* Section name
* @param entryname
* Entry name
* @return
* Entry value
*/
const char *rte_cfgfile_get_entry(struct rte_cfgfile *cfg,
const char *sectionname,
const char *entryname);
/** Check if given entry exists in named config file section
*
* @param cfg
* Config file
* @param sectionname
* Section name
* @param entryname
* Entry name
* @return
* TRUE (value different than 0) if entry exists, FALSE (value 0) otherwise
*/
int rte_cfgfile_has_entry(struct rte_cfgfile *cfg, const char *sectionname,
const char *entryname);
/** Close config file
*
* @param cfg
* Config file
* @return
* 0 on success, error code otherwise
*/
int rte_cfgfile_close(struct rte_cfgfile *cfg);
#ifdef __cplusplus
}
#endif
#endif
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