temperature-alarm/iot/main.c
2025-03-25 12:30:53 +01:00

65 lines
1.1 KiB
C

#include <pthread.h>
#include <stdlib.h>
#include <unistd.h>
#include <stdbool.h>
#include <string.h>
#include <stdio.h>
#include <time.h>
#include "brokers/amqp.h"
#include "temperature.h"
#include "device_id.h"
void *watch_temperature(void *arg)
{
char *device_id = get_device_id();
printf("Device ID: %s\n", device_id);
temperature_handle_t temp_handle = init_temperature();
get_temperature(temp_handle);
while (true) {
double temperature = get_temperature(temp_handle);
size_t timestamp = time(NULL);
char *format = "{"
"\"temperature\": %lf,"
"\"device_id\": \"%s\","
"\"timestamp\": %zu"
"}";
char *str = malloc(snprintf(NULL, 0, format, temperature, device_id, timestamp) + 1);
sprintf(str, format, temperature, device_id, timestamp);
amqp_send_message("temperature-logs", str);
free(str);
printf("Temperature: %lf\n", temperature);
sleep(60);
}
destroy_device_id(device_id);
return NULL;
}
void broker_on_connect(void)
{
pthread_t temperature_thread;
pthread_create(&temperature_thread, NULL, watch_temperature, NULL);
}
int main(void)
{
srand(time(NULL));
init_amqp();
return EXIT_SUCCESS;
}