sched: task: implement task_config_get and task_config_set

sched/task.c

@@ -297,6 +297,40 @@ struct task *task_from_tid(tid_t id)
 	return t;
 }
 
+kern_status_t task_config_get(
+	struct task *task,
+	kern_config_key_t key,
+	void *out,
+	size_t max)
+{
+	switch (key) {
+	case TASK_CFG_ID: {
+		if (max != sizeof(tid_t)) {
+			return KERN_INVALID_ARGUMENT;
+		}
+
+		tid_t *value = out;
+		*value = task->t_id;
+		return KERN_OK;
+	}
+
+	default:
+		return KERN_INVALID_ARGUMENT;
+	}
+}
+
+kern_status_t task_config_set(
+	struct task *task,
+	kern_config_key_t key,
+	const void *ptr,
+	size_t len)
+{
+	switch (key) {
+	default:
+		return KERN_INVALID_ARGUMENT;
+	}
+}
+
 void task_exit(int status)
 {
 	struct task *self = get_current_task();