()
| 35 | } |
| 36 | |
| 37 | pub fn run_tasks() { |
| 38 | loop { |
| 39 | let mut processor = PROCESSOR.exclusive_access(); |
| 40 | if let Some(task) = fetch_task() { |
| 41 | let idle_task_cx_ptr = processor.get_idle_task_cx_ptr(); |
| 42 | // access coming task TCB exclusively |
| 43 | let next_task_cx_ptr = task.inner.exclusive_session(|task_inner| { |
| 44 | task_inner.task_status = TaskStatus::Running; |
| 45 | &task_inner.task_cx as *const TaskContext |
| 46 | }); |
| 47 | processor.current = Some(task); |
| 48 | // release processor manually |
| 49 | drop(processor); |
| 50 | unsafe { |
| 51 | __switch(idle_task_cx_ptr, next_task_cx_ptr); |
| 52 | } |
| 53 | } else { |
| 54 | println!("no tasks available in run_tasks"); |
| 55 | } |
| 56 | } |
| 57 | } |
| 58 | |
| 59 | pub fn take_current_task() -> Option<Arc<TaskControlBlock>> { |
| 60 | PROCESSOR.exclusive_access().take_current() |
no test coverage detected