void
mainloop(game_manager* manager)
{
event_queue_init();
game_manager_start(manager);
unsigned long next_game_tick = black_sdl_get_tick();
unsigned long fps_counter = 0;
unsigned long game_tick = 0;
unsigned long fps_start_time = black_sdl_get_tick();
while (manager->is_running)
{
game_manager_handle_events(manager);
int loops = 0;
unsigned int tick = black_sdl_get_tick();
while(tick > next_game_tick && loops < max_frame_skip)
{
game_manager_update(manager, game_tick++);
next_game_tick += time_per_tick;
loops++;
tick = black_sdl_get_tick();
}
float interpolation = (tick + time_per_tick - next_game_tick)/time_per_tick;
game_manager_render(manager, interpolation);
++fps_counter;
if(black_sdl_get_tick() - fps_start_time > 1000)
{
manager->fps = fps_counter;
fps_counter = 0;
fps_start_time = black_sdl_get_tick();
}
}
event_queue_destroy();
}
/* 工作者线程 */
static void * event_worker(void * arg)
{
event_queue_t * peq = arg;
struct cmd_event * pe;
struct cmd_event * events[EVENTS_SIZ];
int cnt;
peq->sql_db = malloc(sizeof(*(peq->sql_db))); //在当前线程中打开数据库连接
if (peq->sql_db == NULL) {
log_error(LOG_ERROR, "NO MEM");
exit(1);
}
if (sqlite_db_open(peq->sql_db, SQL_DB) < 0) { //在当前线程中打开数据库连接
log_error(LOG_ERROR, "event_queue_init"); //！！！出错
}
//sleep(1);
do {
// printf("\nevent_worker\n");
cnt = 0;
while ((pe = event_queue_pop(peq)) != NULL) {
pe->cb(peq->sql_db, pe->psock, pe->buffer, pe->buf_siz);
events[cnt++] = pe;
cnt -= del_events(cnt, events, peq);
}
del_all_events(cnt, events, peq);
event_queue_wait(peq);
//sleep(1);
} while (1);
sqlite_db_close(peq->sql_db);
free(peq->sql_db);
event_queue_destroy(peq);
return NULL;
}