Method UndoMoveEvictedToPinned

be/src/runtime/bufferpool/buffer-pool.cc:570–586

}

void BufferPool::Client::UndoMoveEvictedToPinned(Page* page) {
  // We need to get the page back to the evicted state where:
  // * There is no in-flight read.
  // * The page's data is on disk referenced by 'write_handle'
  // * The page has no attached buffer.
  DCHECK(page->pin_in_flight.Load());
  page->write_handle->CancelRead();
  page->pin_in_flight.Store(false);

  unique_lock<mutex> lock(lock_);
  DCHECK_CONSISTENCY();
  DCHECK(pinned_pages_.Contains(page));
  pinned_pages_.Remove(page);
  // Discard the buffer - the pin was in flight so there was no way that a valid
  // reference to the buffer's contents was returned since the pin was still in flight.
  pool_->allocator_->Free(move(page->buffer));
}

Status BufferPool::Client::FinishMoveEvictedToPinned(Page* page) {
  SCOPED_TIMER(counters().read_wait_time);