Klagarge/MSE-CSEL
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chore(MP/daemon): tidy up

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This commit is contained in:
Rémi Heredero
2026-06-05 18:38:37 +02:00
parent f42d00a8f8
commit c230621c34
2 changed files with 19 additions and 32 deletions
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4
src/06-mini-project/daemon/gpio/button.c
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@@ -136,6 +136,7 @@ void epoll_init(){
}
static void* epoll_thread(void* arg) {
(void) arg;
while (1) {
struct epoll_event events[MAX_BTN];
int n = epoll_wait(epoll_fd, events, MAX_BTN, -1);
@@ -162,11 +163,12 @@ static void* epoll_thread(void* arg) {
}
pread(btn->fd, buf, sizeof(buf), 0);
if (buf[0] == '1') {
printf("Button %s pressed\n", btn->pin);
// printf("Button %s pressed\n", btn->pin);
if (btn->callback != NULL) {
btn->callback();
}
}
}
}
return NULL;
}

47
src/06-mini-project/daemon/main.c
View File

@@ -9,28 +9,18 @@
#include <sys/inotify.h>
#include <pthread.h>
#include <syslog.h>
#include <stdatomic.h>
#include "timer/timer.h"
#include "gpio/led.h"
#include "gpio/button.h"
#define GPIO_BTN1 "/sys/class/gpio/gpio0"
#define BTN1 "0"
#define GPIO_BTN2 "/sys/class/gpio/gpio2"
#define BTN2 "2"
#define GPIO_BTN3 "/sys/class/gpio/gpio3"
#define BTN3 "3"
#define NBR_BTN 3
#define DEFAULT_TIME_MS 1000
#define DUTY_CYCLE_PERCENT 2
typedef struct {
long flash_period_ms;
atomic_int flash_period_ms;
int timer_fd;
int epoll_fd;
} ThreadData;
@@ -38,18 +28,18 @@ typedef struct {
ThreadData data;
void period_inc() {
data.flash_period_ms += 100;
printf("period_inc: flash_period_ms=%ld\n", data.flash_period_ms);
int period = atomic_fetch_add(&data.flash_period_ms, 100);
printf("period_inc: flash_period_ms=%d\n", period + 100);
}
void period_dec() {
data.flash_period_ms -= 100;
printf("period_dec: flash_period_ms=%ld\n", data.flash_period_ms);
int period = atomic_fetch_sub(&data.flash_period_ms, 100);
printf("period_dec: flash_period_ms=%d\n", period - 100);
}
void period_reset() {
data.flash_period_ms = DEFAULT_TIME_MS;
printf("period_reset: flash_period_ms=%ld\n", data.flash_period_ms);
atomic_store(&data.flash_period_ms, DEFAULT_TIME_MS);
printf("period_reset: flash_period_ms=%d\n", DEFAULT_TIME_MS);
}
static void* timer_thread(void* arg) {
@@ -58,8 +48,6 @@ static void* timer_thread(void* arg) {
led_t* led = led_init(LED_POWER);
led_off(led);
struct epoll_event ev;
int isLedOn = 0;
@@ -77,19 +65,19 @@ static void* timer_thread(void* arg) {
break;
}
long time_on_ms = data->flash_period_ms / 100 * DUTY_CYCLE_PERCENT; // 2% duty
long time_off_ms = data->flash_period_ms - time_on_ms; // rest of the period
int period = atomic_load(&data->flash_period_ms);
long time_on_ms = period / 100 * DUTY_CYCLE_PERCENT; // 2% duty
long time_off_ms = period - time_on_ms; // rest of the period
int delay = 0;
if (isLedOn == 0) {
delay = time_on_ms; // 2% duty
// led_on(led);
led_toggle(led);
led_on(led);
isLedOn = 1;
} else {
delay = time_off_ms; // rest of the period
// led_off(led);
led_toggle(led);
led_off(led);
isLedOn = 0;
}
@@ -101,22 +89,19 @@ static void* timer_thread(void* arg) {
int main(int argc, char* argv[]) {
pthread_t thread;
openlog("CSEL Logs", LOG_PID, LOG_USER);
syslog(LOG_INFO, "Start logging silly led-controller");
data.flash_period_ms = DEFAULT_TIME_MS;
atomic_store(&data.flash_period_ms, DEFAULT_TIME_MS);
// Create timerfd
data.timer_fd = timer_create_empty();
timer_set_time(&data.timer_fd, data.flash_period_ms);
// Create epoll instance
// Create epoll instance for the timer
data.epoll_fd = epoll_create1(0);
if (data.epoll_fd == -1) {
perror("ERROR while create epoll");
exit(20);
}
timer_link_to_epoll(&data.timer_fd, &data.epoll_fd);
btn_t* btn_inc = btn_init(BTN_INCREASE);