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34 #ifndef __INCLUDE_RTE_CFGFILE_H__
35 #define __INCLUDE_RTE_CFGFILE_H__
43 * RTE Configuration File
45 * This library allows reading application defined parameters from standard
46 * format configuration file.
51 #define CFG_NAME_LEN 64
55 #define CFG_VALUE_LEN 256
58 /** Configuration file */
61 /** Configuration file entry */
62 struct rte_cfgfile_entry {
63 char name[CFG_NAME_LEN]; /**< Name */
64 char value[CFG_VALUE_LEN]; /**< Value */
73 * Config file flags, Reserved for future use. Must be set to 0.
75 * Handle to configuration file
77 struct rte_cfgfile *rte_cfgfile_load(const char *filename, int flags);
80 * Get number of sections in config file
87 * Maximum section name length
89 * 0 on success, error code otherwise
91 int rte_cfgfile_num_sections(struct rte_cfgfile *cfg, const char *sec_name,
95 * Get name of all config file sections.
97 * Fills in the array sections with the name of all the sections in the file
98 * (up to the number of max_sections sections).
103 * Array containing section names after successful invocation. Each elemen
104 * of this array should be preallocated by the user with at least
105 * CFG_NAME_LEN characters.
106 * @param max_sections
107 * Maximum number of section names to be stored in sections array
109 * 0 on success, error code otherwise
111 int rte_cfgfile_sections(struct rte_cfgfile *cfg, char *sections[],
115 * Check if given section exists in config file
122 * TRUE (value different than 0) if section exists, FALSE (value 0) otherwise
124 int rte_cfgfile_has_section(struct rte_cfgfile *cfg, const char *sectionname);
127 * Get number of entries in given config file section
129 * If multiple sections have the given name this function operates on the
137 * Number of entries in section
139 int rte_cfgfile_section_num_entries(struct rte_cfgfile *cfg,
140 const char *sectionname);
142 /** Get section entries as key-value pairs
144 * If multiple sections have the given name this function operates on the
152 * Pre-allocated array of at least max_entries entries where the section
153 * entries are stored as key-value pair after successful invocation
155 * Maximum number of section entries to be stored in entries array
157 * 0 on success, error code otherwise
159 int rte_cfgfile_section_entries(struct rte_cfgfile *cfg,
160 const char *sectionname,
161 struct rte_cfgfile_entry *entries,
164 /** Get section entries as key-value pairs
166 * The index of a section is the same as the index of its name in the
167 * result of rte_cfgfile_sections. This API can be used when there are
168 * multiple sections with the same name.
175 * Pre-allocated string of at least CFG_NAME_LEN characters where the
176 * section name is stored after successful invocation.
178 * Pre-allocated array of at least max_entries entries where the section
179 * entries are stored as key-value pair after successful invocation
181 * Maximum number of section entries to be stored in entries array
183 * Number of entries populated on success, negative error code otherwise
185 int rte_cfgfile_section_entries_by_index(struct rte_cfgfile *cfg,
188 struct rte_cfgfile_entry *entries,
191 /** Get value of the named entry in named config file section
193 * If multiple sections have the given name this function operates on the
205 const char *rte_cfgfile_get_entry(struct rte_cfgfile *cfg,
206 const char *sectionname,
207 const char *entryname);
209 /** Check if given entry exists in named config file section
211 * If multiple sections have the given name this function operates on the
221 * TRUE (value different than 0) if entry exists, FALSE (value 0) otherwise
223 int rte_cfgfile_has_entry(struct rte_cfgfile *cfg, const char *sectionname,
224 const char *entryname);
226 /** Close config file
231 * 0 on success, error code otherwise
233 int rte_cfgfile_close(struct rte_cfgfile *cfg);