src/keypress_thread.c


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#include <linux/input.h>

#include "consts.h"
#include "config.h"

#include "common.h"

static pid_t light_pid;

void on_press(void) {
	gettimeofday(last_press, NULL);

	kill(light_pid, SIGCONT);
}

void keypress_thread(pid_t _light_pid) {
	struct input_event pressed_key;

	light_pid = _light_pid;

	FILE* fp = fopen(KEYBOARD_FILE, "r");
	fseek(fp, 0, SEEK_END);

	while (1) {
		fseek(fp, 0, SEEK_END);
		fread(&pressed_key, 1, sizeof(pressed_key), fp);

		if (pressed_key.value == 1) {
			on_press();
		}

		usleep(DEBOUNCE);
	}

	// XXX handle SIGINT or whatever

	__builtin_unreachable();
}