Remove BufferHubBuffer:Poll function

In the new eventFd design, BufferHubBuffer will only provide with the
eventfd itself, and user can decide what to do with it. Therefore, the
Poll function is not needed any more.

Test: BufferHub_test, GraphicBuffer_test
Bug: 118891412
Change-Id: I5f5ff71bcedc20de81f246764e878d81b0768eb1

2 files changed, 0 insertions, 8 deletions

diff --git a/libs/ui/BufferHubBuffer.cpp b/libs/ui/BufferHubBuffer.cpp
index c70f18823c..87314ecf76 100644
--- a/libs/ui/BufferHubBuffer.cpp
+++ b/libs/ui/BufferHubBuffer.cpp
@@ -319,11 +319,6 @@ bool BufferHubBuffer::IsValid() const {
             mMetadata.IsValid() && mBufferClient != nullptr;
 }
 
-// TODO(b/68770788): implement Poll() once we have event fd
-int BufferHubBuffer::Poll(int /* timeoutMs */) {
-    return -ENOSYS;
-}
-
 native_handle_t* BufferHubBuffer::Duplicate() {
     if (mBufferClient == nullptr) {
         ALOGE("%s: missing BufferClient!", __FUNCTION__);
diff --git a/libs/ui/include/ui/BufferHubBuffer.h b/libs/ui/include/ui/BufferHubBuffer.h
index 44dfa95e67..c6a4a232d1 100644
--- a/libs/ui/include/ui/BufferHubBuffer.h
+++ b/libs/ui/include/ui/BufferHubBuffer.h
@@ -94,9 +94,6 @@ public:
     // current cycle of the usage of the buffer.
     int Release();
 
-    // Polls the fd for |timeoutMs| milliseconds (-1 for infinity).
-    int Poll(int timeoutMs);
-
     // Creates a token that stands for this BufferHubBuffer client and could be used for Import to
     // create another BufferHubBuffer. The new BufferHubBuffer will share the same underlying
     // gralloc buffer and ashmem region for metadata. Note that the caller owns the token and