virtio-queue v0.3.0

v0.3.0

Added

• [#148]: QueueStateOwnedT trait that stands
  for queue objects which are exclusively owned and accessed by a single thread of execution.
• [#148]: Added the pop_descriptor_chain
  method, which can be used to consume descriptor chains from the available ring without
  using an iterator, to QueueStateT and QueueGuard. Also added go_to_previous_position()
  to QueueGuard, which enables decrementing the next available index by one position, which
  effectively undoes the consumption of a descriptor chain in some use cases.
• [#151]: Added MockSplitQueue::add_desc_chain(),
  which places a descriptor chain at the specified offset in the descriptor table.
• [#153]: Added QueueStateT::size() to return
  the size of the queue.

Changed

• The minimum version of the vm-memory dependency is now v0.8.0
• [#161]: Improve the efficiency of needs_notification

Removed

• [#153]: #[derive(Clone)] for QueueState