1 use core::hint::spin_loop; 2 3 use log::error; 4 5 use crate::{ 6 arch::CurrentIrqArch, 7 exception::InterruptArch, 8 process::{ProcessFlags, ProcessManager}, 9 sched::{SchedMode, __schedule}, 10 }; 11 12 impl ProcessManager { 13 /// 每个核的idle进程 arch_idle_func() -> !14 pub fn arch_idle_func() -> ! { 15 loop { 16 let pcb = ProcessManager::current_pcb(); 17 if pcb.flags().contains(ProcessFlags::NEED_SCHEDULE) { 18 __schedule(SchedMode::SM_NONE); 19 } 20 if CurrentIrqArch::is_irq_enabled() { 21 unsafe { 22 x86::halt(); 23 } 24 } else { 25 error!("Idle process should not be scheduled with IRQs disabled."); 26 spin_loop(); 27 } 28 } 29 } 30 } 31