From 85de8a1591855db0bc0608b67532515df12e65cc Mon Sep 17 00:00:00 2001
From: weiyu <weiyuluo1232@gmail.com>
Date: Wed, 20 Nov 2019 12:40:46 -0800
Subject: [PATCH] Implement both pthread_yield and c++ thread yield

---
 pthread.cc | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pthread.cc b/pthread.cc
index d6067eb2..4b5e3d37 100644
--- a/pthread.cc
+++ b/pthread.cc
@@ -52,6 +52,12 @@ int pthread_detach(pthread_t t) {
 	return 0;
 }
 
+/* Take care of both pthread_yield and c++ thread yield */
+int sched_yield() {
+	model->switch_to_master(new ModelAction(THREAD_YIELD, std::memory_order_seq_cst, thread_current(), VALUE_NONE));
+	return 0;
+}
+
 void pthread_exit(void *value_ptr) {
 	Thread * th = thread_current();
 	th->set_pthread_return(value_ptr);
-- 
2.34.1