Module mmtk::util::object_forwarding

Forwarding word in object copying.

Constants

• BEING_FORWARDED 🔒
• FORWARDED 🔒
• FORWARDING_BITS 🔒
• FORWARDING_MASK 🔒
• FORWARDING_NOT_TRIGGERED_YET 🔒
• FORWARDING_POINTER_MASK 🔒

Functions

• attempt_to_forward
  Attempt to become the worker thread who will forward the object. The successful worker will set the object forwarding bits to BEING_FORWARDED, preventing other workers from forwarding the same object.
• clear_forwarding_bits
  Zero the forwarding bits of an object. This function is used on new objects.
• forward_object
  Copy an object and set the forwarding state.
• forwarding_bits_offset_in_forwarding_pointer 🔒
  (This function is only used internal to the util module)
• get_forwarding_status
  Return the forwarding bits for a given ObjectReference.
• is_being_forwarded 🔒
• is_forwarded
• is_forwarded_or_being_forwarded
• read_forwarding_pointer
  Read the forwarding pointer of an object. This function is called on forwarded/being_forwarded objects.
• spin_and_get_forwarded_object
  Spin-wait for the object’s forwarding to become complete and then read the forwarding pointer to the new object.
• state_is_being_forwarded
• state_is_forwarded_or_being_forwarded
• write_forwarding_pointer
  Write the forwarding pointer of an object. This function is called on being_forwarded objects.