From e4671d291689e71967afa5dec4ff25d310faa3fb Mon Sep 17 00:00:00 2001
From: tangyuxin <462747508@qq.com>
Date: Mon, 16 Sep 2019 15:12:42 +0800
Subject: [kernel][ipc] add send wait support for message queue

---
 include/rtdef.h    | 2 ++
 include/rtthread.h | 4 ++++
 2 files changed, 6 insertions(+)

(limited to 'include')

diff --git a/include/rtdef.h b/include/rtdef.h
index 7c05178e3c..b25a6a87d5 100644
--- a/include/rtdef.h
+++ b/include/rtdef.h
@@ -742,6 +742,8 @@ struct rt_messagequeue
     void                *msg_queue_head;                /**< list head */
     void                *msg_queue_tail;                /**< list tail */
     void                *msg_queue_free;                /**< pointer indicated the free node of queue */
+
+    rt_list_t            suspend_sender_thread;         /**< sender thread suspended on this message queue */
 };
 typedef struct rt_messagequeue *rt_mq_t;
 #endif
diff --git a/include/rtthread.h b/include/rtthread.h
index 04db77da46..d703f36268 100644
--- a/include/rtthread.h
+++ b/include/rtthread.h
@@ -379,6 +379,10 @@ rt_mq_t rt_mq_create(const char *name,
 rt_err_t rt_mq_delete(rt_mq_t mq);
 
 rt_err_t rt_mq_send(rt_mq_t mq, const void *buffer, rt_size_t size);
+rt_err_t rt_mq_send_wait(rt_mq_t     mq,
+                         const void *buffer,
+                         rt_size_t   size,
+                         rt_int32_t  timeout);
 rt_err_t rt_mq_urgent(rt_mq_t mq, const void *buffer, rt_size_t size);
 rt_err_t rt_mq_recv(rt_mq_t    mq,
                     void      *buffer,
-- 
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