diff options
Diffstat (limited to 'include/gui')
| -rw-r--r-- | include/gui/BufferQueueCore.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/gui/BufferQueueCore.h b/include/gui/BufferQueueCore.h index cfcb7a5..1050e3b 100644 --- a/include/gui/BufferQueueCore.h +++ b/include/gui/BufferQueueCore.h @@ -120,6 +120,9 @@ private: // in one of the slots. bool stillTracking(const BufferItem* item) const; + // waitWhileAllocatingLocked blocks until mIsAllocating is false. + void waitWhileAllocatingLocked() const; + // mAllocator is the connection to SurfaceFlinger that is used to allocate // new GraphicBuffer objects. sp<IGraphicBufferAlloc> mAllocator; @@ -234,6 +237,15 @@ private: // mSidebandStream is a handle to the sideband buffer stream, if any sp<NativeHandle> mSidebandStream; + // mIsAllocating indicates whether a producer is currently trying to allocate buffers (which + // releases mMutex while doing the allocation proper). Producers should not modify any of the + // FREE slots while this is true. mIsAllocatingCondition is signaled when this value changes to + // false. + bool mIsAllocating; + + // mIsAllocatingCondition is a condition variable used by producers to wait until mIsAllocating + // becomes false. + mutable Condition mIsAllocatingCondition; }; // class BufferQueueCore } // namespace android |