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

@@ -0,0 +1,25 @@
+use std::{sync::{RwLock, Arc}};
+
+use lazy_static::lazy_static;
+
+use crate::{kernel::{thread::Thread, scheduler::Scheduler}, utility::list::List};
+
+extern crate lazy_static;
+
+lazy_static! {
+    pub static ref G_CURRENT_THREAD: RwLock<Option<Thread>> = RwLock::new(Option::None);
+    pub static ref G_THREAD_TO_BE_DESTROYED: RwLock<Option<Thread>> = RwLock::new(Option::None);
+    pub static ref G_ALIVE: RwLock<List<Arc<Thread>>> = RwLock::new(List::new());
+    pub static ref G_SCHEDULER: RwLock<Scheduler> = RwLock::new(Scheduler::new());
+}
+
+
+#[derive(PartialEq)]
+pub enum ObjectType {
+    SemaphoreType,
+    LockType,
+    ConditionType,
+    FileType,
+    ThreadType,
+    InvalidType
+}

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;