4 #define BACKUP_INTERVAL 60
5 #define PHYSIC_TIME_TICK 1000000/100
9 static void add_signal_handlers();
10 static void signal_handler(int);
11 static void start(void *(*)(void *));
12 static void *worldBackupThread(void *);
13 static void *graphicRedrawThread(void *);
14 static void *modRuntimeThread(void *);
15 static void *entityPhysicsThread(void *);
16 static void *timeThread(void *);