Sem

📄 ftok 📄 msg_get_queue 📄 msg_queue_exists 📄 msg_receive 📄 msg_remove_queue 📄 msg_send 📄 msg_set_queue 📄 msg_stat_queue 📄 sem_acquire 📄 sem_get 📄 sem_release 📄 sem_remove 📄 shm_attach 📄 shm_detach 📄 shm_get_var 📄 shm_has_var 📄 shm_put_var 📄 shm_remove_var 📄 shm_remove