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34 #ifndef __INCLUDE_RTE_CFGFILE_H__
35 #define __INCLUDE_RTE_CFGFILE_H__
45 * RTE Configuration File
47 * This library allows reading application defined parameters from standard
48 * format configuration file.
53 #define CFG_NAME_LEN 64
57 #define CFG_VALUE_LEN 256
60 /** Configuration file */
63 /** Configuration file entry */
64 struct rte_cfgfile_entry {
65 char name[CFG_NAME_LEN]; /**< Name */
66 char value[CFG_VALUE_LEN]; /**< Value */
75 * Config file flags, Reserved for future use. Must be set to 0.
77 * Handle to configuration file on success, NULL otherwise
79 struct rte_cfgfile *rte_cfgfile_load(const char *filename, int flags);
82 * Get number of sections in config file
89 * Maximum section name length
93 int rte_cfgfile_num_sections(struct rte_cfgfile *cfg, const char *sec_name,
97 * Get name of all config file sections.
99 * Fills in the array sections with the name of all the sections in the file
100 * (up to the number of max_sections sections).
105 * Array containing section names after successful invocation. Each element
106 * of this array should be preallocated by the user with at least
107 * CFG_NAME_LEN characters.
108 * @param max_sections
109 * Maximum number of section names to be stored in sections array
111 * Number of populated sections names
113 int rte_cfgfile_sections(struct rte_cfgfile *cfg, char *sections[],
117 * Check if given section exists in config file
124 * TRUE (value different than 0) if section exists, FALSE (value 0) otherwise
126 int rte_cfgfile_has_section(struct rte_cfgfile *cfg, const char *sectionname);
129 * Get number of entries in given config file section
131 * If multiple sections have the given name this function operates on the
139 * Number of entries in section on success, -1 otherwise
141 int rte_cfgfile_section_num_entries(struct rte_cfgfile *cfg,
142 const char *sectionname);
145 * Get section entries as key-value pairs
147 * If multiple sections have the given name this function operates on the
155 * Pre-allocated array of at least max_entries entries where the section
156 * entries are stored as key-value pair after successful invocation
158 * Maximum number of section entries to be stored in entries array
160 * Number of entries populated on success, -1 otherwise
162 int rte_cfgfile_section_entries(struct rte_cfgfile *cfg,
163 const char *sectionname,
164 struct rte_cfgfile_entry *entries,
168 * Get section entries as key-value pairs
170 * The index of a section is the same as the index of its name in the
171 * result of rte_cfgfile_sections. This API can be used when there are
172 * multiple sections with the same name.
179 * Pre-allocated string of at least CFG_NAME_LEN characters where the
180 * section name is stored after successful invocation.
182 * Pre-allocated array of at least max_entries entries where the section
183 * entries are stored as key-value pair after successful invocation
185 * Maximum number of section entries to be stored in entries array
187 * Number of entries populated on success, -1 otherwise
189 int rte_cfgfile_section_entries_by_index(struct rte_cfgfile *cfg,
192 struct rte_cfgfile_entry *entries,
196 * Get value of the named entry in named config file section
198 * If multiple sections have the given name this function operates on the
208 * Entry value on success, NULL otherwise
210 const char *rte_cfgfile_get_entry(struct rte_cfgfile *cfg,
211 const char *sectionname,
212 const char *entryname);
215 * Check if given entry exists in named config file section
217 * If multiple sections have the given name this function operates on the
227 * TRUE (value different than 0) if entry exists, FALSE (value 0) otherwise
229 int rte_cfgfile_has_entry(struct rte_cfgfile *cfg, const char *sectionname,
230 const char *entryname);
238 * 0 on success, -1 otherwise
240 int rte_cfgfile_close(struct rte_cfgfile *cfg);