From e8cca2315a790d61c743a71e1a682e6ace7866fd Mon Sep 17 00:00:00 2001
From: Grissiom <chaos.proton@gmail.com>
Date: Mon, 19 Aug 2013 15:57:59 +0800
Subject: [PATCH] dev/pipe: call rx_indicate the time we resume reader

Some reader(FinSh again) would like to block on a semaphore which is
released in rx_indicate. So we should invoke rx_indicate in
_rt_pipe_resume_reader.
---
 components/drivers/src/pipe.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/components/drivers/src/pipe.c b/components/drivers/src/pipe.c
index f01244ce22..f0368e87db 100644
--- a/components/drivers/src/pipe.c
+++ b/components/drivers/src/pipe.c
@@ -104,6 +104,10 @@ static rt_size_t rt_pipe_read(rt_device_t dev,
 
 static void _rt_pipe_resume_reader(struct rt_pipe_device *pipe)
 {
+    if (pipe->parent.rx_indicate)
+        pipe->parent.rx_indicate(&pipe->parent,
+                                 rt_ringbuffer_data_len(&pipe->ringbuffer));
+
     if (!rt_list_isempty(&pipe->suspended_read_list))
     {
         rt_thread_t thread;