drath/linuxSmartie
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ts dont run bri

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Drath Vader
2026-05-02 20:32:47 +02:00
parent 96e14ed6ea
commit a90a65ba96
3 changed files with 67 additions and 5 deletions
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53
src/main.c
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@@ -4,15 +4,25 @@
#include "log.h"
#include <unistd.h>
#include <stdatomic.h>
#include <stdio.h>
#include <sys/signalfd.h>
#include "lcd.h"
static void timespec_add_ms(struct timespec *ts, const uint16_t ms) {
ts->tv_nsec += ms * 1000000L;
if (ts->tv_nsec >= 1000000000L) {
ts->tv_sec++;
ts->tv_nsec -= 1000000000L;
}
}
static constexpr uint16_t refresh_interval_ms = 500;
atomic_bool g_running; // if using c11, you need atomic_store() and atomic_load();
struct control_t {
pthread_mutex_t sensors_mtx = PTHREAD_MUTEX_INITIALIZER;
pthread_cond_t sensors_ready = PTHREAD_COND_INITIALIZER,
pthread_mutex_t sensors_mtx;
pthread_cond_t sensors_ready;
} control;
struct sensors_t {
@@ -52,8 +62,22 @@ static void *display_thread(void *arg) {
lcd_flush_buf(&lcd);
lcd_clear_buf(&lcd);
static int i = 0;
while (g_running) { // NOLINT its updated globally bud
;
struct timespec ts;
clock_gettime(CLOCK_REALTIME, &ts);
timespec_add_ms(&ts, (uint16_t)(refresh_interval_ms * 1.25));
pthread_mutex_lock(&control.sensors_mtx);
pthread_cond_timedwait(&control.sensors_ready, &control.sensors_mtx, &ts);
lcd_writef(&lcd, 44, "write %6d", i);
lcd_flush_buf(&lcd);
pthread_mutex_unlock(&control.sensors_mtx);
applog(LOG_WRN, "disp tock");
}
lcd_close(&lcd);
@@ -64,7 +88,22 @@ static void *display_thread(void *arg) {
static void *sensors_thread(void *arg) {
applog(LOG_START, "sensors thread started");
struct sensors_t* sensors = arg;
(void)sensors;
struct timespec next;
clock_gettime(CLOCK_REALTIME, &next);
while (g_running) { // NOLINT
timespec_add_ms(&next, refresh_interval_ms);
pthread_mutex_lock(&control.sensors_mtx);
sensors->hass_state = 2.3;
pthread_cond_signal(&control.sensors_ready);
pthread_mutex_unlock(&control.sensors_mtx);
clock_nanosleep(CLOCK_REALTIME, TIMER_ABSTIME, &next, nullptr);
applog(LOG_WRN, "sensors tick");
}
applog(LOG_WRN, "sensors thread stopped");
return nullptr;
}
@@ -83,6 +122,10 @@ int main(void) {
struct signalfd_siginfo info;
const int sfd = signalfd(-1, &sigset, SFD_CLOEXEC);
/* init control struct */
pthread_mutex_init(&control.sensors_mtx, nullptr);
pthread_cond_init(&control.sensors_ready, nullptr);
struct sensors_t *sensors = malloc(sizeof(struct sensors_t));
if (sensors == nullptr) {