20         let pcb = ProcessManager::current_pcb();  in proc_set_tty()  localVariable
23         ctrl.pgid = Some(pcb.pid());  in proc_set_tty()
24         ctrl.session = Some(pcb.pid());  in proc_set_tty()
26         assert!(pcb.sig_info_irqsave().tty().is_none());  in proc_set_tty()
28         let mut singal = pcb.sig_info_mut();  in proc_set_tty()
35         let pcb = ProcessManager::current_pcb();  in tty_check_change()  localVariable
37         if pcb.sig_info_irqsave().tty().is_none()  in tty_check_change()
38             || !Arc::ptr_eq(&pcb.sig_info_irqsave().tty().unwrap(), &tty)  in tty_check_change()
47         let pgid = pcb.pid();  in tty_check_change()
51             if pcb  in tty_check_change()
55                 || pcb.sig_struct_irqsave().handlers[sig as usize].is_ignore()  in tty_check_change()