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class method

GC.verify_compaction_references

GC.verify_compaction_references(toward: nil, double_heap: false) → hash

# File tmp/rubies/ruby-3.2.0/gc.rb, line 250
def self.verify_compaction_references(toward: nil, double_heap: false, expand_heap: false)
  Primitive.gc_verify_compaction_references(double_heap, expand_heap, toward == :empty)
end

Verify compaction reference consistency.

This method is implementation specific. During compaction, objects that were moved are replaced with T_MOVED objects. No object should have a reference to a T_MOVED object after compaction.

This function expands the heap to ensure room to move all objects, compacts the heap to make sure everything moves, updates all references, then performs a full GC. If any object contains a reference to a T_MOVED object, that object should be pushed on the mark stack, and will make a SEGV.

See also .using_rvargc? .verify_internal_consistency .total_time .verify_transient_heap_internal_consistency also in 4.1 · 3.3 · 3.1 · 3.0

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