Rename `interrupt` module to `trap` module

tornado-kernel/src/main.rs

@@ -13,7 +13,7 @@ mod console;
 mod algorithm;
 mod panic;
 mod sbi;
-mod interrupt;
+mod trap;
 mod memory;
 mod task;
 mod hart;
@@ -26,7 +26,7 @@ pub extern "C" fn rust_main(hart_id: usize) -> ! {
     println!("booted");
 
     memory::init();
-    interrupt::init();
+    trap::init();
 
     unsafe {
         llvm_asm!("ebreak"::::"volatile");

tornado-kernel/src/task/kernel_task.rs

@@ -3,7 +3,7 @@ use spin::Mutex;
 use core::ops::Range;
 use core::future::Future;
 use alloc::boxed::Box;
-use crate::{hart::KernelHartInfo, interrupt::TrapFrame, memory::VirtualAddress};
+use crate::{hart::KernelHartInfo, trap::TrapFrame, memory::VirtualAddress};
 use crate::task::{Process, SharedTaskHandle};
 use core::pin::Pin;
 use core::fmt;

tornado-kernel/src/task/switch.rs

@@ -1,2 +1,7 @@
-use hashbrown::HashSet;
+use hashbrown::HashMap;
+use crate::trap::TrapFrame;
+use super::SharedTaskHandle;
 
+pub struct ContextTable {
+    inner: HashMap<SharedTaskHandle, TrapFrame>,
+}