chore(MP/daemon): remove useless timer class

src/06-mini-project/daemon/timer/timer.c

@@ -1,51 +0,0 @@
-#include "timer.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/timerfd.h>
-#include <sys/epoll.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-
-
-int timer_create_empty() {
-
-    // Create timerfd
-    int timer_fd = timerfd_create(CLOCK_MONOTONIC, TFD_NONBLOCK | TFD_CLOEXEC);
-    if (timer_fd == -1) {
-        perror("timerfd_create failed");
-        exit(10);
-    }
-
-    return timer_fd;
-}
-
-
-void timer_set_time(int* timer_fd, long period_ms) {
-    // https://www.man7.org/linux/man-pages/man3/itimerspec.3type.html
-    struct itimerspec its;
-
-    // Periodic interval
-    its.it_interval.tv_sec = 0;
-    its.it_interval.tv_nsec = 0;
-
-    // Initial expiration
-    its.it_value.tv_sec = period_ms / 1000;
-    its.it_value.tv_nsec = (period_ms % 1000) * 1000000;
-
-    if (timerfd_settime(*timer_fd, 0, &its, NULL) == -1) {
-        perror("timerfd_settime failed");
-        exit(11);
-    }
-}
-
-void timer_link_to_epoll(int* timer_fd, int* epoll_fd) {
-    struct epoll_event ev;
-    ev.events = EPOLLIN;
-    ev.data.fd = *timer_fd;
-    if (epoll_ctl(*epoll_fd, EPOLL_CTL_ADD, *timer_fd, &ev) == -1) {
-        perror("ERROR while add timerfd to epoll");
-        exit(21);
-    }
-}

src/06-mini-project/daemon/timer/timer.h

@@ -1,8 +0,0 @@
-#ifndef CSEL_WORKSPACE_TIMER_H
-#define CSEL_WORKSPACE_TIMER_H
-
-int timer_create_empty();
-void timer_set_time(int* timer_fd, long period_ms);
-void timer_link_to_epoll(int* timer_fd, int* epoll_fd);
-
-#endif //CSEL_WORKSPACE_TIMER_H