9 #define RRD_DATABASE_LIST "rrd_database"
10 #define RRD_DATABASE_NAME "name"
12 static int read_strings_from_list(config_setting_t *list, const char ***strings)
14 config_setting_t *string;
16 int str_count = config_setting_length(list);
19 strs = calloc(sizeof(*strs), str_count + 1);
21 for (j = 0; j < str_count; j++) {
24 string = config_setting_get_elem(list, j);
25 str = config_setting_get_string(string);
26 strs[j] = strdup(str);
33 static int parse_images(config_setting_t *list, struct rrd_database *db)
36 config_setting_t *image, *str_list;
37 const char *database = NULL, *filename = NULL, *timestart = NULL;
38 const char *timeend = NULL, *imageformat = NULL;
39 const char **options = NULL, **text = NULL;
40 const char *updatestr = NULL;
41 int width = 0, height = 0, text_lead = 0;
43 count = config_setting_length(list);
45 pr_info("%s: Parsing %d images\n", db->name, count);
46 db->images = calloc(sizeof(*db->images), count + 1);
48 for (i = 0; i < count; i++) {
49 image = config_setting_get_elem(list, i);
50 db->images[i] = calloc(sizeof(*db->images[i]), 1);
52 config_setting_lookup_string(image, "database", &database);
53 config_setting_lookup_int(image, "text_lead", &text_lead);
56 * The config_setting_lookup_* functions will leave
57 * the destination unchanged in case requested value
58 * is not found. If that is the case, the value from
59 * previous image group is used. That makes it
60 * possible for the user to only define once all
61 * fields and then leave identical fields unset on the
62 * following groups, making it easier to define many
63 * almost identical images.
66 config_setting_lookup_string(image, "filename", &filename);
68 pr_err("Database %s does not have \"filename\" entry "
74 config_setting_lookup_int(image, "width", &width);
76 pr_err("Database %s does not have \"width\" entry "
82 config_setting_lookup_int(image, "height", &height);
84 pr_err("Database %s does not have \"height\" entry "
90 config_setting_lookup_string(image, "timestart", ×tart);
92 pr_err("Database %s does not have \"timestart\" entry "
98 config_setting_lookup_string(image, "timeend", &timeend);
100 pr_err("Database %s does not have \"timeend\" entry "
106 config_setting_lookup_string(image, "imageformat",
109 pr_err("Database %s does not have \"imageformat\" "\
110 "entry in image data\n",
115 config_setting_lookup_string(image, "update_string",
118 str_list = config_setting_get_member(image, "options");
120 read_strings_from_list(str_list, &options);
122 str_list = config_setting_get_member(image, "text");
124 read_strings_from_list(str_list, &text);
126 db->images[i]->rrd_database =
127 database ? strdup(database) : NULL;
128 db->images[i]->image_filename = strdup(filename);
129 db->images[i]->width = width;
130 db->images[i]->height = height;
131 strncpy(db->images[i]->timestart, timestart,
132 sizeof(db->images[i]->timestart));
133 strncpy(db->images[i]->timeend, timeend,
134 sizeof(db->images[i]->timeend));
135 strncpy(db->images[i]->imageformat, imageformat,
136 sizeof(db->images[i]->imageformat));
137 db->images[i]->options = options;
138 db->images[i]->text_lead = text_lead;
139 db->images[i]->text = text;
142 db->images[i]->updatestr = strdup(updatestr);
148 static int (*str_to_parser(const char *str))(char *rrd_data, const char **parser_data)
153 if (!strcmp(str, "cpu"))
156 if (!strcmp(str, "mem"))
159 if (!strcmp(str, "cpu_mem"))
160 return cpu_mem_parser;
162 if (!strcmp(str, "digitemp"))
163 return digitemp_parser;
165 if (!strcmp(str, "digitemp_mod"))
166 return digitemp_parser_mod;
168 if (!strcmp(str, "script"))
169 return script_parser;
171 if (!strcmp(str, "netstats"))
172 return netstats_parser;
174 if (!strcmp(str, "onewire"))
175 return onewire_parser;
180 static int parse_data_sources(config_setting_t *rrd, struct rrd_database *db)
182 config_setting_t *list, *group;
184 const char *type = NULL, *name = NULL;
189 list = config_setting_get_member(rrd, "sources");
191 pr_info("No data sources\n");
195 if (!config_setting_is_list(list)) {
196 pr_err("Data sources have no list\n");
200 count = config_setting_length(list);
201 db->sources = calloc(sizeof(*db->sources), count + 1);
203 for (i = 0; i < count; i++) {
204 group = config_setting_get_elem(list, i);
206 config_setting_lookup_string(group, "type", &type);
207 config_setting_lookup_string(group, "name", &name);
208 config_setting_lookup_float(group, "min", &min);
209 config_setting_lookup_float(group, "max", &max);
210 config_setting_lookup_int(group, "heartbeat", &heartbeat);
212 db->sources[i].type = strdup(type);
213 db->sources[i].name = strdup(name);
214 db->sources[i].heartbeat = heartbeat;
215 db->sources[i].min = min;
216 db->sources[i].max = max;
222 static int parse_archives(config_setting_t *rrd, struct rrd_database *db)
224 config_setting_t *list, *group;
226 const char *type = NULL;
231 list = config_setting_get_member(rrd, "archives");
233 pr_info("No archive found\n");
237 if (!config_setting_is_list(list)) {
238 pr_err("Archive does not contain a list\n");
242 count = config_setting_length(list);
243 db->archives = calloc(sizeof(*db->archives), count + 1);
245 for (i = 0; i < count; i++) {
246 group = config_setting_get_elem(list, i);
248 config_setting_lookup_string(group, "type", &type);
249 config_setting_lookup_float(group, "xff", &xff);
250 config_setting_lookup_int(group, "steps", &steps);
251 config_setting_lookup_int(group, "rows", &rows);
253 db->archives[i].type = strdup(type);
254 db->archives[i].xff = xff;
255 db->archives[i].steps = steps;
256 db->archives[i].rows = rows;
262 static int parse_database(config_setting_t *rrd, struct rrd_database *db)
264 config_setting_t *list, *str_list;
265 const char *name, *parser = NULL, *filename, **parser_data;
267 if (!config_setting_lookup_string(rrd, "name", &name)) {
268 pr_err("Database entry does not contain name\n");
272 pr_info("parsing database %s\n", name);
273 db->name = strdup(name);
275 if (!config_setting_lookup_string(rrd, "filename", &filename)) {
276 pr_err("Database %s does not contain filename\n", db->name);
279 db->filename = strdup(filename);
281 if (!config_setting_lookup_int(rrd, "interval", &db->interval)) {
282 pr_err("Database %s does not have interval set\n", name);
286 /* Parser is not a mandatory parameter */
287 config_setting_lookup_string(rrd, "parser", &parser);
288 db->parse = str_to_parser(parser);
290 list = config_setting_get_member(rrd, "image");
291 parse_images(list, db);
292 parse_data_sources(rrd, db);
293 parse_archives(rrd, db);
295 str_list = config_setting_get_member(rrd, "parser_data");
297 read_strings_from_list(str_list, &parser_data);
298 db->parser_data = parser_data;
304 struct rrd_database **populate_database(const char *conffile)
306 struct rrd_database **rrd_db = NULL;
308 config_setting_t *rrd_database;
311 config_init(&config);
313 if (!config_read_file(&config, conffile)) {
314 pr_err("%s:%d - %s\n", config_error_file(&config),
315 config_error_line(&config),
316 config_error_text(&config));
320 rrd_database = config_lookup(&config, "rrd_database");
321 count = config_setting_length(rrd_database);
324 * Allocate one element extra. The last one is zeroed out to
325 * indicate the end of the db list
327 rrd_db = calloc(count + 1, sizeof(*rrd_db));
329 pr_info("There are %d database entries\n", count);
331 for (i = 0; i < count; i++) {
332 config_setting_t *rrd;
333 rrd_db[i] = calloc(1, sizeof(*rrd_db[i]));
334 rrd = config_setting_get_elem(rrd_database, i);
335 parse_database(rrd, rrd_db[i]);
339 config_destroy(&config);
343 #define CONFIG_ADD_STRING(_config, _setting, _name, _val) \
345 _setting = config_setting_add(_config, _name, \
346 CONFIG_TYPE_STRING); \
347 config_setting_set_string(_setting, _val); \
350 #define CONFIG_ADD_INT(_config, _setting, _name, _val) \
352 _setting = config_setting_add(_config, _name, \
354 config_setting_set_int(_setting, _val); \
357 #define CONFIG_ADD_FLOAT(_config, _setting, _name, _val) \
359 _setting = config_setting_add(_config, _name, \
360 CONFIG_TYPE_FLOAT); \
361 config_setting_set_float(_setting, _val); \
364 static void put_strings_to_list(config_setting_t *config,
365 const char *entry_name, const char **strings)
367 config_setting_t *list, *setting;
370 list = config_setting_add(config, entry_name, CONFIG_TYPE_LIST);
371 for (i = 0; strings[i]; i++)
372 CONFIG_ADD_STRING(list, setting, NULL, strings[i]);
375 static void put_image_to_list(config_setting_t *config,
376 struct rrd_image *image)
378 config_setting_t *setting, *group;
380 group = config_setting_add(config, "image", CONFIG_TYPE_GROUP);
382 CONFIG_ADD_STRING(group, setting, "rrd_database", image->rrd_database);
383 CONFIG_ADD_STRING(group, setting, "filename", image->image_filename);
384 CONFIG_ADD_INT(group, setting, "width", image->width);
385 CONFIG_ADD_INT(group, setting, "height", image->height);
386 CONFIG_ADD_STRING(group, setting, "timestart", image->timestart);
387 CONFIG_ADD_STRING(group, setting, "timeend", image->timeend);
388 CONFIG_ADD_STRING(group, setting, "imageformat", image->imageformat);
390 put_strings_to_list(group, "options", image->options);
392 CONFIG_ADD_INT(group, setting, "text_lead", image->text_lead);
394 put_strings_to_list(group, "text", image->text);
397 static void put_data_source_to_list(config_setting_t *list,
398 struct rrd_data_source *source)
400 config_setting_t *setting, *group;
402 group = config_setting_add(list, "data_source", CONFIG_TYPE_GROUP);
404 CONFIG_ADD_STRING(group, setting, "type", source->type);
405 CONFIG_ADD_STRING(group, setting, "name", source->name);
406 CONFIG_ADD_INT(group, setting, "heartbeat", source->heartbeat);
407 CONFIG_ADD_FLOAT(group, setting, "min", source->min);
408 CONFIG_ADD_FLOAT(group, setting, "max", source->max);
411 static void put_archive_to_list(config_setting_t *list,
412 struct rrd_archive *archive)
414 config_setting_t *setting, *group;
416 group = config_setting_add(list, "archive", CONFIG_TYPE_GROUP);
418 CONFIG_ADD_STRING(group, setting, "type", archive->type);
419 CONFIG_ADD_FLOAT(group, setting, "xff", archive->xff);
420 CONFIG_ADD_INT(group, setting, "steps", archive->steps);
421 CONFIG_ADD_INT(group, setting, "rows", archive->rows);
424 static char *parser_to_str(int (*parser)(char *rrd_data, const char **parser_data))
426 if (parser == cpu_parser)
429 if (parser == mem_parser)
432 if (parser == cpu_mem_parser)
435 if (parser == digitemp_parser)
438 if (parser == digitemp_parser_mod)
439 return "digitemp_mod";
441 if (parser == script_parser)
444 if (parser == netstats_parser)
447 if (parser == onewire_parser)
453 static void put_database_to_list(config_setting_t *config,
454 struct rrd_database *db)
456 config_setting_t *setting;
457 config_setting_t *list, *group;
458 char *str = parser_to_str(db->parse);
461 group = config_setting_add(config, RRD_DATABASE_LIST,
464 CONFIG_ADD_STRING(group, setting, "name", db->name);
465 CONFIG_ADD_STRING(group, setting, "filename", db->filename);
466 CONFIG_ADD_INT(group, setting, "interval", db->interval);
467 CONFIG_ADD_STRING(group, setting, "parser", str);
470 put_strings_to_list(group, "parser_data", db->parser_data);
472 list = config_setting_add(group, "image", CONFIG_TYPE_LIST);
473 for (i = 0; db->images[i]; i++) {
474 put_image_to_list(list, db->images[i]);
478 list = config_setting_add(group, "sources", CONFIG_TYPE_LIST);
479 for (i = 0; db->sources[i].type; i++) {
480 put_data_source_to_list(list, &db->sources[i]);
485 list = config_setting_add(group, "archives", CONFIG_TYPE_LIST);
486 for (i = 0; db->archives[i].type; i++) {
487 put_archive_to_list(list, &db->archives[i]);
492 int write_database(const char *conffile, struct rrd_database **rrd_db)
495 config_setting_t *root, *rrd_database_list;
499 config_init(&config);
501 config_set_tab_width(&config, 4);
503 root = config_root_setting(&config);
505 rrd_database_list = config_setting_add(root, RRD_DATABASE_LIST,
507 for (i = 0; rrd_db[i]; i++) {
508 put_database_to_list(rrd_database_list, rrd_db[i]);
511 ret = !config_write_file(&config, conffile);
513 pr_err("Error while writing file.\n");
515 config_destroy(&config);