static void
timer_update(struct timer *T) {
// try to dispatch timeout 0 (rare condition)
timer_execute(T);
// shift time first, and then dispatch timer message
timer_shift(T);
timer_execute(T);
}
static void
timer_update(struct timer *T)
{
while (__sync_lock_test_and_set(&T->lock,1)) {};
// try to dispatch timeout 0 (rare condition)
timer_execute(T);
// shift time first, and then dispatch timer message
timer_shift(T);
timer_execute(T);
__sync_lock_release(&T->lock);
}
static void timer_update_tick(struct timer *T) {
LOCK(T);
// try to dispatch timeout 0 (rare condition)
timer_execute(T);
// shift time first, and then dispatch timer message
timer_shift(T);
//check agin
timer_execute(T);
UNLOCK(T);
}
/* 更新当前时间并分发所有已经到期的定时事件. 此函数是线程安全的. */
static void
timer_update(struct timer *T) {
SPIN_LOCK(T);
/* 第一件做的事情是分发当前时间未更新的情况下到期的定时事件, 这些事件
是在上次分发运行中添加进来而未检查到的. 如果不这样做, 它们将永远丢失. */
// try to dispatch timeout 0 (rare condition)
timer_execute(T);
/* 然后才是更新当前时间, 重新安排层级列表集中的定时触发事件, 并分发此时到期的定时事件 */
// shift time first, and then dispatch timer message
timer_shift(T);
timer_execute(T);
SPIN_UNLOCK(T);
}
void
skynet_updatetime(void) {
uint32_t ct = _gettime();
if (ct > TI->current) {
int diff = ct-TI->current;
TI->current = ct;
int i;
for (i=0;i<diff;i++) {
timer_execute(TI);
}
}
}
void * timer_server_task(void *arg)
{
int ret;
int socket, acpt_socket;
struct timeval timeout;
struct timeval *time_ptr = NULL;
pthread_detach(pthread_self());
snprintf(socket_file, sizeof(socket_file), TIMER_SOCKET_FILE, getpid());
/* Init socket */
ret = unix_domain_socket_init(&socket, socket_file);
if (ret != 0) {
fprintf(std_err, "cmsvc_init() failed.");
goto out;
}
pthread_mutex_lock(&timeout_mutex);
beInitialed = 1;
pthread_cond_signal(&timeout_cond);
pthread_mutex_unlock(&timeout_mutex);
/* select socket, proccess when got a message. */
while (1) {
ret = unix_domain_accept_req(socket, &acpt_socket, time_ptr);
if (ret == 0) {//timeout
timer_execute();
goto check;
} else if (ret < 0) {
goto check;
}
ret = handle_proc_req(acpt_socket);
if (ret != 0) {
fprintf(std_err, "handle_proc_req() failed.\n");
}
check:
if (get_rest_time(&timeout) < 0 ) {
time_ptr = NULL;
} else {
time_ptr = &timeout;
}
}
out:
unix_domain_socket_clean(socket, socket_file);
return (void *)0;
}
static void timer_tick(struct core_timer* timer, struct core_poller* io)
{
timer_execute(timer,io);
timer_shift(timer);
timer_execute(timer, io);
}