chore(lab/4,5): wrong function name

Author: GZTimeWalker

docs/labs/0x04/tasks.md

@@ -741,7 +741,7 @@ pub fn exit(ret: isize, context: &mut ProcessContext) {
     x86_64::instructions::interrupts::without_interrupts(|| {
         let manager = get_process_manager();
         // FIXME: implement this for ProcessManager
-        manager.kill_self(ret);
+        manager.kill_current(ret);
         manager.switch_next(context);
     })
 }
@@ -752,8 +752,8 @@ pub fn exit(ret: isize, context: &mut ProcessContext) {
     退出的操作并不只用于当前进程，也可以作用于其他进程，因此可以通过如下方式将它们统一：
 
     ```rust
-    pub fn kill_self(&self, ret: isize) {
-        self.kill(processor::current_pid(), ret);
+    pub fn kill_current(&self, ret: isize) {
+        self.kill(processor::get_pid(), ret);
     }
 
     pub fn kill(&self, pid: ProcessId, ret: isize) {

docs/labs/0x05/tasks.md

@@ -419,7 +419,7 @@ pub fn wait_pid(pid: ProcessId, context: &mut ProcessContext) {
 pub fn wait_pid(&self, pid: ProcessId) {
     let mut wait_queue = self.wait_queue.lock();
     // FIXME: push the current process to the wait queue
-    //        `processor::current_pid()` is waiting for `pid`
+    //        `processor::get_pid()` is waiting for `pid`
 }
 ```
 
@@ -726,7 +726,7 @@ pub struct ProcessData {
 pub fn sem_wait(key: u32, context: &mut ProcessContext) {
     x86_64::instructions::interrupts::without_interrupts(|| {
         let manager = get_process_manager();
-        let pid = processor::current_pid();
+        let pid = processor::get_pid();
         let ret = manager.current().write().sem_wait(key, pid);
         match ret {
             SemaphoreResult::Ok => context.set_rax(0),