From 2cf4aebe7acdf7ef21dd1b56e8df40a439cc3296 Mon Sep 17 00:00:00 2001
From: Ruihan Li <lrh2000@pku.edu.cn>
Date: Sun, 19 Jan 2025 08:45:04 +0900
Subject: [PATCH] Use `FnOnce() + Send` as task `func`

---
 kernel/src/thread/kernel_thread.rs | 4 ++--
 ostd/src/task/mod.rs               | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/kernel/src/thread/kernel_thread.rs b/kernel/src/thread/kernel_thread.rs
index 9bfb67b0..6ce3f1bb 100644
--- a/kernel/src/thread/kernel_thread.rs
+++ b/kernel/src/thread/kernel_thread.rs
@@ -13,7 +13,7 @@ struct KernelThread;
 
 /// Options to create or spawn a new kernel thread.
 pub struct ThreadOptions {
-    func: Option<Box<dyn Fn() + Send + Sync>>,
+    func: Option<Box<dyn FnOnce() + Send>>,
     priority: Priority,
     cpu_affinity: CpuSet,
 }
@@ -22,7 +22,7 @@ impl ThreadOptions {
     /// Creates the thread options with the thread function.
     pub fn new<F>(func: F) -> Self
     where
-        F: Fn() + Send + Sync + 'static,
+        F: FnOnce() + Send + 'static,
     {
         let cpu_affinity = CpuSet::new_full();
         Self {
diff --git a/ostd/src/task/mod.rs b/ostd/src/task/mod.rs
index 5a850b0c..b4fd32e2 100644
--- a/ostd/src/task/mod.rs
+++ b/ostd/src/task/mod.rs
@@ -149,7 +149,7 @@ impl TaskOptions {
     /// Creates a set of options for a task.
     pub fn new<F>(func: F) -> Self
     where
-        F: FnOnce() + Send + Sync + 'static,
+        F: FnOnce() + Send + 'static,
     {
         Self {
             func: Some(Box::new(func)),