6 #define RRD_DATABASE_LIST "rrd_database"
7 #define RRD_DATABASE_NAME "name"
9 static int read_strings_from_list(config_setting_t *list, const char ***strings)
11 config_setting_t *string;
13 int str_count = config_setting_length(list);
16 strs = calloc(sizeof(*strs), str_count + 1);
18 for (j = 0; j < str_count; j++) {
21 string = config_setting_get_elem(list, j);
22 str = config_setting_get_string(string);
23 strs[j] = strdup(str);
30 static int parse_images(config_setting_t *list, struct rrd_database *db)
33 config_setting_t *image, *str_list;
34 const char *database = NULL, *filename = NULL, *timestart = NULL;
35 const char *timeend = NULL, *imageformat = NULL;
36 const char **options = NULL, **text = NULL;
37 int width = 0, height = 0, text_lead = 0;
39 count = config_setting_length(list);
41 pr_info("%s: Parsing %d images\n", db->name, count);
42 db->images = calloc(sizeof(*db->images), count + 1);
44 for (i = 0; i < count; i++) {
45 image = config_setting_get_elem(list, i);
46 db->images[i] = calloc(sizeof(*db->images[i]), 1);
48 config_setting_lookup_string(image, "database", &database);
49 config_setting_lookup_int(image, "text_lead", &text_lead);
52 * The config_setting_lookup_* functions will leave
53 * the destination unchanged in case requested value
54 * is not found. If that is the case, the value from
55 * previous image group is used. That makes it
56 * possible for the user to only define once all
57 * fields and then leave identical fields unset on the
58 * following groups, making it easier to define many
59 * almost identical images.
62 config_setting_lookup_string(image, "filename", &filename);
64 pr_err("Database %s does not have \"filename\" entry "
70 config_setting_lookup_int(image, "width", &width);
72 pr_err("Database %s does not have \"width\" entry "
78 config_setting_lookup_int(image, "height", &height);
80 pr_err("Database %s does not have \"height\" entry "
86 config_setting_lookup_string(image, "timestart", ×tart);
88 pr_err("Database %s does not have \"height\" entry "
94 config_setting_lookup_string(image, "timeend", &timeend);
96 pr_err("Database %s does not have \"height\" entry "
102 config_setting_lookup_string(image, "imageformat",
105 pr_err("Database %s does not have \"height\" entry "
111 str_list = config_setting_get_member(image, "options");
113 read_strings_from_list(str_list, &options);
115 str_list = config_setting_get_member(image, "text");
117 read_strings_from_list(str_list, &text);
119 db->images[i]->rrd_database =
120 database ? strdup(database) : NULL;
121 db->images[i]->image_filename = strdup(filename);
122 db->images[i]->width = width;
123 db->images[i]->height = height;
124 strncpy(db->images[i]->timestart, timestart,
125 sizeof(db->images[i]->timestart));
126 strncpy(db->images[i]->timeend, timeend,
127 sizeof(db->images[i]->timeend));
128 strncpy(db->images[i]->imageformat, imageformat,
129 sizeof(db->images[i]->imageformat));
130 db->images[i]->options = options;
131 db->images[i]->text_lead = text_lead;
132 db->images[i]->text = text;
138 static int (*str_to_parser(const char *str))(char *rrd_data, const char **parser_data)
143 if (!strcmp(str, "cpu"))
146 if (!strcmp(str, "mem"))
149 if (!strcmp(str, "cpu_mem"))
150 return cpu_mem_parser;
152 if (!strcmp(str, "digitemp"))
153 return digitemp_parser;
155 if (!strcmp(str, "digitemp_mod"))
156 return digitemp_parser_mod;
158 if (!strcmp(str, "script"))
159 return script_parser;
161 if (!strcmp(str, "netstats"))
162 return netstats_parser;
167 static int parse_data_sources(config_setting_t *rrd, struct rrd_database *db)
169 config_setting_t *list, *group;
171 const char *type = NULL, *name = NULL;
176 list = config_setting_get_member(rrd, "sources");
178 pr_info("No data sources\n");
182 if (!config_setting_is_list(list)) {
183 pr_err("Data sources have no list\n");
187 count = config_setting_length(list);
188 db->sources = calloc(sizeof(*db->sources), count + 1);
190 for (i = 0; i < count; i++) {
191 group = config_setting_get_elem(list, i);
193 config_setting_lookup_string(group, "type", &type);
194 config_setting_lookup_string(group, "name", &name);
195 config_setting_lookup_float(group, "min", &min);
196 config_setting_lookup_float(group, "max", &max);
197 config_setting_lookup_int(group, "heartbeat", &heartbeat);
199 db->sources[i].type = strdup(type);
200 db->sources[i].name = strdup(name);
201 db->sources[i].heartbeat = heartbeat;
202 db->sources[i].min = min;
203 db->sources[i].max = max;
209 static int parse_archives(config_setting_t *rrd, struct rrd_database *db)
211 config_setting_t *list, *group;
213 const char *type = NULL;
218 list = config_setting_get_member(rrd, "archives");
220 pr_info("No archive found\n");
224 if (!config_setting_is_list(list)) {
225 pr_err("Archive does not contain a list\n");
229 count = config_setting_length(list);
230 db->archives = calloc(sizeof(*db->archives), count + 1);
232 for (i = 0; i < count; i++) {
233 group = config_setting_get_elem(list, i);
235 config_setting_lookup_string(group, "type", &type);
236 config_setting_lookup_float(group, "xff", &xff);
237 config_setting_lookup_int(group, "steps", &steps);
238 config_setting_lookup_int(group, "rows", &rows);
240 db->archives[i].type = strdup(type);
241 db->archives[i].xff = xff;
242 db->archives[i].steps = steps;
243 db->archives[i].rows = rows;
249 static int parse_database(config_setting_t *rrd, struct rrd_database *db)
251 config_setting_t *list, *str_list;
252 const char *name, *parser = NULL, *filename, **parser_data;
254 if (!config_setting_lookup_string(rrd, "name", &name)) {
255 pr_err("Database entry does not contain name\n");
259 pr_info("parsing database %s\n", name);
260 db->name = strdup(name);
262 if (!config_setting_lookup_string(rrd, "filename", &filename)) {
263 pr_err("Database %s does not contain filename\n", db->name);
266 db->filename = strdup(filename);
268 if (!config_setting_lookup_int(rrd, "interval", &db->interval)) {
269 pr_err("Database %s does not have interval set\n", name);
273 /* Parser is not a mandatory parameter */
274 config_setting_lookup_string(rrd, "parser", &parser);
275 db->parse = str_to_parser(parser);
277 list = config_setting_get_member(rrd, "image");
278 parse_images(list, db);
279 parse_data_sources(rrd, db);
280 parse_archives(rrd, db);
282 str_list = config_setting_get_member(rrd, "parser_data");
284 read_strings_from_list(str_list, &parser_data);
285 db->parser_data = parser_data;
291 struct rrd_database **populate_database(const char *conffile)
293 struct rrd_database **rrd_db = NULL;
295 config_setting_t *rrd_database;
298 config_init(&config);
300 if (!config_read_file(&config, conffile)) {
301 pr_err("%s:%d - %s\n", config_error_file(&config),
302 config_error_line(&config),
303 config_error_text(&config));
307 rrd_database = config_lookup(&config, "rrd_database");
308 count = config_setting_length(rrd_database);
311 * Allocate one element extra. The last one is zeroed out to
312 * indicate the end of the db list
314 rrd_db = calloc(count + 1, sizeof(*rrd_db));
316 pr_info("There are %d database entries\n", count);
318 for (i = 0; i < count; i++) {
319 config_setting_t *rrd;
320 rrd_db[i] = calloc(1, sizeof(*rrd_db[i]));
321 rrd = config_setting_get_elem(rrd_database, i);
322 parse_database(rrd, rrd_db[i]);
326 config_destroy(&config);
330 #define CONFIG_ADD_STRING(_config, _setting, _name, _val) \
332 _setting = config_setting_add(_config, _name, \
333 CONFIG_TYPE_STRING); \
334 config_setting_set_string(_setting, _val); \
337 #define CONFIG_ADD_INT(_config, _setting, _name, _val) \
339 _setting = config_setting_add(_config, _name, \
341 config_setting_set_int(_setting, _val); \
344 #define CONFIG_ADD_FLOAT(_config, _setting, _name, _val) \
346 _setting = config_setting_add(_config, _name, \
347 CONFIG_TYPE_FLOAT); \
348 config_setting_set_float(_setting, _val); \
351 static void put_strings_to_list(config_setting_t *config,
352 const char *entry_name, const char **strings)
354 config_setting_t *list, *setting;
357 list = config_setting_add(config, entry_name, CONFIG_TYPE_LIST);
358 for (i = 0; strings[i]; i++)
359 CONFIG_ADD_STRING(list, setting, NULL, strings[i]);
362 static void put_image_to_list(config_setting_t *config,
363 struct rrd_image *image)
365 config_setting_t *setting, *group;
367 group = config_setting_add(config, "image", CONFIG_TYPE_GROUP);
369 CONFIG_ADD_STRING(group, setting, "rrd_database", image->rrd_database);
370 CONFIG_ADD_STRING(group, setting, "filename", image->image_filename);
371 CONFIG_ADD_INT(group, setting, "width", image->width);
372 CONFIG_ADD_INT(group, setting, "height", image->height);
373 CONFIG_ADD_STRING(group, setting, "timestart", image->timestart);
374 CONFIG_ADD_STRING(group, setting, "timeend", image->timeend);
375 CONFIG_ADD_STRING(group, setting, "imageformat", image->imageformat);
377 put_strings_to_list(group, "options", image->options);
379 CONFIG_ADD_INT(group, setting, "text_lead", image->text_lead);
381 put_strings_to_list(group, "text", image->text);
384 static void put_data_source_to_list(config_setting_t *list,
385 struct rrd_data_source *source)
387 config_setting_t *setting, *group;
389 group = config_setting_add(list, "data_source", CONFIG_TYPE_GROUP);
391 CONFIG_ADD_STRING(group, setting, "type", source->type);
392 CONFIG_ADD_STRING(group, setting, "name", source->name);
393 CONFIG_ADD_INT(group, setting, "heartbeat", source->heartbeat);
394 CONFIG_ADD_FLOAT(group, setting, "min", source->min);
395 CONFIG_ADD_FLOAT(group, setting, "max", source->max);
398 static void put_archive_to_list(config_setting_t *list,
399 struct rrd_archive *archive)
401 config_setting_t *setting, *group;
403 group = config_setting_add(list, "archive", CONFIG_TYPE_GROUP);
405 CONFIG_ADD_STRING(group, setting, "type", archive->type);
406 CONFIG_ADD_FLOAT(group, setting, "xff", archive->xff);
407 CONFIG_ADD_INT(group, setting, "steps", archive->steps);
408 CONFIG_ADD_INT(group, setting, "rows", archive->rows);
411 static char *parser_to_str(int (*parser)(char *rrd_data, const char **parser_data))
413 if (parser == cpu_parser)
416 if (parser == mem_parser)
419 if (parser == cpu_mem_parser)
422 if (parser == digitemp_parser)
425 if (parser == digitemp_parser_mod)
426 return "digitemp_mod";
428 if (parser == script_parser)
431 if (parser == netstats_parser)
437 static void put_database_to_list(config_setting_t *config,
438 struct rrd_database *db)
440 config_setting_t *setting;
441 config_setting_t *list, *group;
442 char *str = parser_to_str(db->parse);
445 group = config_setting_add(config, RRD_DATABASE_LIST,
448 CONFIG_ADD_STRING(group, setting, "name", db->name);
449 CONFIG_ADD_STRING(group, setting, "filename", db->filename);
450 CONFIG_ADD_INT(group, setting, "interval", db->interval);
451 CONFIG_ADD_STRING(group, setting, "parser", str);
454 put_strings_to_list(group, "parser_data", db->parser_data);
456 list = config_setting_add(group, "image", CONFIG_TYPE_LIST);
457 for (i = 0; db->images[i]; i++) {
458 put_image_to_list(list, db->images[i]);
462 list = config_setting_add(group, "sources", CONFIG_TYPE_LIST);
463 for (i = 0; db->sources[i].type; i++) {
464 put_data_source_to_list(list, &db->sources[i]);
469 list = config_setting_add(group, "archives", CONFIG_TYPE_LIST);
470 for (i = 0; db->archives[i].type; i++) {
471 put_archive_to_list(list, &db->archives[i]);
476 int write_database(const char *conffile, struct rrd_database **rrd_db)
479 config_setting_t *root, *rrd_database_list;
483 config_init(&config);
485 config_set_tab_width(&config, 4);
487 root = config_root_setting(&config);
489 rrd_database_list = config_setting_add(root, RRD_DATABASE_LIST,
491 for (i = 0; rrd_db[i]; i++) {
492 put_database_to_list(rrd_database_list, rrd_db[i]);
495 ret = !config_write_file(&config, conffile);
497 pr_err("Error while writing file.\n");
499 config_destroy(&config);