From 8211047138ea7892c73f4e6f6291a85a11759e0c Mon Sep 17 00:00:00 2001
From: Eino-Ville Talvala <etalvala@google.com>
Date: Thu, 21 Jul 2016 17:06:58 -0700
Subject: DO NOT MERGE ANYWHERE: BufferQueue consumers: Add discardFreeBuffer
 method

This method releases all free buffers owned by the buffer queue,
in order to save memory (at the cost of potential future
reallocation of buffers).

Bug: 28695173
Change-Id: I458d10373e639e3144faf673af2ba01aca36e65a
---
 libs/gui/BufferQueueConsumer.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'libs/gui/BufferQueueConsumer.cpp')

diff --git a/libs/gui/BufferQueueConsumer.cpp b/libs/gui/BufferQueueConsumer.cpp
index cbc88932ac..525938e7f2 100644
--- a/libs/gui/BufferQueueConsumer.cpp
+++ b/libs/gui/BufferQueueConsumer.cpp
@@ -717,6 +717,12 @@ sp<NativeHandle> BufferQueueConsumer::getSidebandStream() const {
     return mCore->mSidebandStream;
 }
 
+status_t BufferQueueConsumer::discardFreeBuffers() {
+    Mutex::Autolock lock(mCore->mMutex);
+    mCore->discardFreeBuffersLocked();
+    return NO_ERROR;
+}
+
 void BufferQueueConsumer::dump(String8& result, const char* prefix) const {
     const IPCThreadState* ipc = IPCThreadState::self();
     const pid_t pid = ipc->getCallingPid();
-- 
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