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lst_timer.cpp
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224 lines (209 loc) · 4.4 KB
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#include "lst_timer.h"
sort_timer_lst::sort_timer_lst()
{
head = NULL;
tail = NULL;
}
sort_timer_lst::~sort_timer_lst()
{
util_timer *tmp = head;
while (tmp)
{
head = tmp->next;
delete tmp;
tmp = head;
}
}
void sort_timer_lst::add_timer(util_timer *timer)
{
if (!timer)
{
return;
}
if (!head)
{
head = tail = timer;
return;
}
if (timer->expire < head->expire)
{
timer->next = head;
head->prev = timer;
head = timer;
return;
}
add_timer(timer, head);
}
void sort_timer_lst::adjust_timer(util_timer *timer)
{
if (!timer)
{
return;
}
util_timer *tmp = timer->next;
if (!tmp || (timer->expire < tmp->expire))
{
return;
}
if (timer == head)
{
head = head->next;
head->prev = NULL;
timer->next = NULL;
add_timer(timer, head);
}
else
{
timer->prev->next = timer->next;
timer->next->prev = timer->prev;
add_timer(timer, timer->next);
}
}
void sort_timer_lst::del_timer(util_timer *timer)
{
if (!timer)
{
return;
}
if ((timer == head) && (timer == tail))
{
delete timer;
head = NULL;
tail = NULL;
return;
}
if (timer == head)
{
head = head->next;
head->prev = NULL;
delete timer;
return;
}
if (timer == tail)
{
tail = tail->prev;
tail->next = NULL;
delete timer;
return;
}
timer->prev->next = timer->next;
timer->next->prev = timer->prev;
delete timer;
}
void sort_timer_lst::tick()
{
if (!head)
{
return;
}
time_t cur = time(NULL);
util_timer *tmp = head;
while (tmp)
{
if (cur < tmp->expire)
{
break;
}
tmp->cb_func(tmp->user_data);
head = tmp->next;
if (head)
{
head->prev = NULL;
}
delete tmp;
tmp = head;
}
}
void sort_timer_lst::add_timer(util_timer *timer, util_timer *lst_head)
{
util_timer *prev = lst_head;
util_timer *tmp = prev->next;
while (tmp)
{
if (timer->expire < tmp->expire)
{
prev->next = timer;
timer->next = tmp;
tmp->prev = timer;
timer->prev = prev;
break;
}
prev = tmp;
tmp = tmp->next;
}
if (!tmp)
{
prev->next = timer;
timer->prev = prev;
timer->next = NULL;
tail = timer;
}
}
void Utils::init(sort_timer_lst timer_lst, int timeslot)
{
m_timer_lst = timer_lst;
m_TIMESLOT = timeslot;
}
//对文件描述符设置非阻塞
int Utils::setnonblocking(int fd)
{
int old_option = fcntl(fd, F_GETFL);
int new_option = old_option | O_NONBLOCK;
fcntl(fd, F_SETFL, new_option);
return old_option;
}
//将内核事件表注册读事件，ET模式，选择开启EPOLLONESHOT
void Utils::addfd(int epollfd, int fd, bool one_shot, int TRIGMode)
{
epoll_event event;
event.data.fd = fd;
if (1 == TRIGMode)
event.events = EPOLLIN | EPOLLET | EPOLLRDHUP;
else
event.events = EPOLLIN | EPOLLRDHUP;
if (one_shot)
event.events |= EPOLLONESHOT;
epoll_ctl(epollfd, EPOLL_CTL_ADD, fd, &event);
setnonblocking(fd);
}
//信号处理函数
void Utils::sig_handler(int sig)
{
//为保证函数的可重入性，保留原来的errno
int save_errno = errno;
int msg = sig;
send(u_pipefd[1], (char *)&msg, 1, 0);
errno = save_errno;
}
//设置信号函数
void Utils::addsig(int sig, void(handler)(int), bool restart)
{
struct sigaction sa;
memset(&sa, '\0', sizeof(sa));
sa.sa_handler = handler;
if (restart)
sa.sa_flags |= SA_RESTART;
sigfillset(&sa.sa_mask);
assert(sigaction(sig, &sa, NULL) != -1);
}
//定时处理任务，重新定时以不断触发SIGALRM信号
void Utils::timer_handler()
{
m_timer_lst.tick();
alarm(m_TIMESLOT);
}
void Utils::show_error(int connfd, const char *info)
{
send(connfd, info, strlen(info), 0);
close(connfd);
}
int *Utils::u_pipefd = 0;
int Utils::u_epollfd = 0;
class Utils;
void cb_func(client_data *user_data)
{
epoll_ctl(Utils::u_epollfd, EPOLL_CTL_DEL, user_data->sockfd, 0);
assert(user_data);
close(user_data->sockfd);
http_conn::m_user_count--;
}