Move system to the right location

src/kernel/mod.rs

@@ -1,4 +1,5 @@
 mod process;
 pub mod thread;
 pub mod scheduler;
-pub mod mgerror;
+pub mod mgerror;
+pub mod system;

src/kernel/scheduler.rs

@@ -2,8 +2,8 @@ use std::sync::Arc;
 
 use crate::utility::list::List;
 use crate::kernel::thread::Thread;
-use crate::utility::system::{G_CURRENT_THREAD, G_THREAD_TO_BE_DESTROYED};
 
+use super::system::{G_CURRENT_THREAD, G_THREAD_TO_BE_DESTROYED};
 
 pub struct Scheduler {
     ready_list: List<Arc<Thread>>

src/kernel/system.rs

@@ -2,9 +2,8 @@ use std::{sync::{RwLock, Arc}};
 
 use lazy_static::lazy_static;
 
-use crate::kernel::{thread::Thread, scheduler::Scheduler};
+use crate::{kernel::{thread::Thread, scheduler::Scheduler}, utility::list::List};
 
-use super::list::List;
 extern crate lazy_static;
 
 lazy_static! {

src/kernel/thread.rs

@@ -1,7 +1,7 @@
 use std::sync::Arc;
 
-use super::{process::Process, mgerror::ErrorCode};
-use crate::{simulator::machine::{NUM_INT_REGS, NUM_FP_REGS, STACK_REG}, utility::system::{ObjectType, G_ALIVE, G_SCHEDULER}, kernel::scheduler};
+use super::{process::Process, mgerror::ErrorCode, system::{ObjectType, G_ALIVE, G_SCHEDULER}};
+use crate::{simulator::machine::{NUM_INT_REGS, NUM_FP_REGS, STACK_REG}};
 
 const SIMULATORSTACKSIZE: usize = 32 * 1024;
 

src/utility/mod.rs

@@ -1,2 +1 @@
-pub mod list;
-pub mod system;
+pub mod list;