Module mmtk::util::metadata::side_metadata::ranges

Data types for visiting metadata ranges at different granularities.

Currently, the break_bit_range function can break a bit range into sub-ranges of whole bytes and in-byte bits.

TODO:

• Add a function to break a byte range into sub-ranges of whole words and in-word bytes.
  • And use it for searching side metadata for non-zero bits.
• Add a function to break a byte range at chunk boundaries.
  • And use it for visiting discontiguous side metadata in bulk.

Enums

• BitByteRange
  A range of bytes or bits within a byte. It is the unit of visiting a contiguous bit range of a side metadata.

Functions

• break_bit_range
  Break a bit range into sub-ranges of whole bytes and in-byte bits.

Type Aliases

• BitOffset
  The type for bit offset in a byte.