Files
HumidityPi/RaspberryPi/configreader.c

110 lines
3.0 KiB
C

#include "configreader.h"
#include <libconfig.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
config_t cfg;
const config_setting_t *pins;
const config_setting_t *compareIDs;
void cfginit(void) {
config_init(&cfg);
if (!config_read_file(&cfg, "./settings.cfg")) {
fprintf(stderr, "%s:%d - %s\n", config_error_file(&cfg), config_error_line(&cfg), config_error_text(&cfg));
config_destroy(&cfg);
//return(EXIT_FAILURE);
}
}
void cfgdestroy(void) {
//free ram
config_destroy(&cfg);
}
void cfgreinit(void) {
cfgdestroy();
cfginit();
}
int cfgreadpinnumber(int element) {
pins = config_lookup(&cfg, "pins");
int length = config_setting_length(pins);
if (element < length) {
return config_setting_get_int_elem(pins, element);
} else {
printf("No pins configuration item found.\n");
return 7;
}
}
int cfgreadpinamount(void) {
pins = config_lookup(&cfg, "pins");
return config_setting_length(pins);
}
int cfgreadsensornodes(sensornode *nodes, int nodecount) {
sensornode *currentNode = nodes;
config_setting_t *sensornodes = config_lookup(&cfg, "sensornodes");
if (sensornodes != NULL) {
int count = nodecount = config_setting_length(sensornodes); //Read amount of sensornodes and save it in nodecount
int i;
for(i = 0; i < count; ++i) {
config_setting_t *sensornodesetting = config_setting_get_elem(sensornodes, i);
/* Only output the record if all of the expected fields are present. */
const char *ip;
int outside;
if (!(config_setting_lookup_string(sensornodesetting, "ip", &ip) && config_setting_lookup_int(sensornodesetting, "outside", &outside)))
continue;
strcpy(currentNode->ip, ip);
currentNode->isoutside = outside;
//if (i < count - 1) { //stop at last item
currentNode->next = malloc(sizeof(sensornode));
currentNode = currentNode->next;
//}
}
return 1;
}
return 0;
}
int cfgreadcompareidamount(void) {
compareIDs = config_lookup(&cfg, "compare_ids");
return config_setting_length(compareIDs);
}
int cfgreadcompareidvalue(int element) {
compareIDs = config_lookup(&cfg, "compare_ids");
int length = config_setting_length(compareIDs);
if (element < length) {
return config_setting_get_int_elem(compareIDs, element);
} else {
printf("No compare configuration item found.\n");
return -1;
}
}
const char *cfgreadDatabaseUser(void) {
const char *databaseuser;
if (!config_lookup_string(&cfg, "databaseuser", &databaseuser)) {
databaseuser = "dhtuser";
}
return databaseuser;
}
int cfgreadNodeRefreshRate(void) {
int refreshRate;
if (!config_lookup_int(&cfg, "refreshRate", &refreshRate)) {
refreshRate = 60; //Default value
}
return refreshRate;
}