Fix thread waker

Author: DoumanAsh

tests/rt.rs

@@ -6,29 +6,36 @@ pub(crate) mod thread {
     use std::thread::Thread;
     use core::{task, mem};
 
-    const VTABLE: task::RawWakerVTable = task::RawWakerVTable::new(clone, action, action, on_drop);
+    const VTABLE: task::RawWakerVTable = task::RawWakerVTable::new(clone, wake, wake_by_ref, on_drop);
 
     unsafe fn on_drop(thread: *const ()) {
-        let thread: Thread = mem::transmute(thread);
+        let thread = Box::from_raw(thread as *mut Thread);
         drop(thread);
     }
 
     unsafe fn clone(thread: *const()) -> task::RawWaker {
-        let thread: Thread = mem::transmute(thread);
-        let new_ptr = mem::transmute(thread.clone());
+        let thread = Box::from_raw(thread as *mut Thread);
+        let new_ptr = thread.clone();
         mem::forget(thread);
-        task::RawWaker::new(new_ptr, &VTABLE)
+        task::RawWaker::new(Box::into_raw(new_ptr) as _, &VTABLE)
     }
 
-    unsafe fn action(thread: *const ()) {
-        let thread: Thread = mem::transmute(thread);
+    unsafe fn wake(thread: *const ()) {
+        let thread = Box::from_raw(thread as *mut () as *mut Thread);
+        thread.unpark();
+    }
+
+    unsafe fn wake_by_ref(thread: *const ()) {
+        let thread = &*(thread as *const Box<Thread>);
         thread.unpark();
     }
 
     #[inline(always)]
     pub fn waker(thread: Thread) -> task::Waker {
+        //double pointer is so dumb...
+        let thread = Box::new(thread);
         unsafe {
-            task::Waker::from_raw(task::RawWaker::new(mem::transmute(thread), &VTABLE))
+            task::Waker::from_raw(task::RawWaker::new(Box::into_raw(thread) as _, &VTABLE))
         }
     }
 }