Flush QemuPipeStream when needed

Under some circumstances, close color buffer messages in the command stream
do not reach the host as the size of the undelivered commands is small.
This results in refcounts of ColorBuffer never dropping to zero and color
buffers not being freed.

The patch calls flush at the end of rcCloseColorBuffer_enc().
In addition, the stream is flushed before it is deleted in the destructor of
QemuPipeStream, since it may also have important messages.

bug: 9278661

Change-Id: I46f20af8e0c272ec8d831d62f57cb2f22c7b28a7

2 files changed, 3 insertions, 0 deletions

diff --git a/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp b/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp
index 50c3d8b..a55dca0 100644
--- a/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp
+++ b/opengl/system/OpenglSystemCommon/QemuPipeStream.cpp
@@ -40,6 +40,7 @@ QemuPipeStream::QemuPipeStream(int sock, size_t bufSize) :
 QemuPipeStream::~QemuPipeStream()
 {
     if (m_sock >= 0) {
+        flush();
         ::close(m_sock);
     }
     if (m_buf != NULL) {
diff --git a/opengl/system/renderControl_enc/renderControl_enc.cpp b/opengl/system/renderControl_enc/renderControl_enc.cpp
index 94e256a..41f59d0 100644
--- a/opengl/system/renderControl_enc/renderControl_enc.cpp
+++ b/opengl/system/renderControl_enc/renderControl_enc.cpp
@@ -311,6 +311,8 @@ void rcCloseColorBuffer_enc(void *self , uint32_t colorbuffer)
 	memcpy(ptr, &packetSize, 4);  ptr += 4;
 
 		memcpy(ptr, &colorbuffer, 4); ptr += 4;
+
+	stream->flush();
 }
 
 void rcSetWindowColorBuffer_enc(void *self , uint32_t windowSurface, uint32_t colorBuffer)