From 0de1495f358e9b892dfa63d4b74f59b1d2903703 Mon Sep 17 00:00:00 2001
From: Mike Dalessio <mike.dalessio@gmail.com>
Date: Mon, 23 May 2022 15:40:22 -0400
Subject: Move compaction-related methods into gc.c

These methods are removed from gc.rb and added to gc.c:

- GC.compact
- GC.auto_compact
- GC.auto_compact=
- GC.latest_compact_info
- GC.verify_compaction_references

This is a prefactor to allow setting these methods to
`rb_f_notimplement` in a followup commit.
---
 gc.rb | 68 -------------------------------------------------------------------
 1 file changed, 68 deletions(-)

(limited to 'gc.rb')

diff --git a/gc.rb b/gc.rb
index e9fb8f883b..9a60cd9cd2 100644
--- a/gc.rb
+++ b/gc.rb
@@ -38,27 +38,6 @@ module GC
     Primitive.gc_start_internal full_mark, immediate_mark, immediate_sweep, false
   end
 
-  #  call-seq:
-  #     GC.auto_compact    -> true or false
-  #
-  #  Returns whether or not automatic compaction has been enabled.
-  #
-  def self.auto_compact
-    Primitive.gc_get_auto_compact
-  end
-
-  #  call-seq:
-  #     GC.auto_compact = flag
-  #
-  #  Updates automatic compaction mode.
-  #
-  #  When enabled, the compactor will execute on every major collection.
-  #
-  #  Enabling compaction will degrade performance on major collections.
-  def self.auto_compact=(flag)
-    Primitive.gc_set_auto_compact(flag)
-  end
-
   #  call-seq:
   #     GC.enable    -> true or false
   #
@@ -253,53 +232,6 @@ module GC
     Primitive.gc_latest_gc_info hash_or_key
   end
 
-  #  call-seq:
-  #     GC.latest_compact_info -> {:considered=>{:T_CLASS=>11}, :moved=>{:T_CLASS=>11}}
-  #
-  #  Returns information about object moved in the most recent GC compaction.
-  #
-  # The returned hash has two keys :considered and :moved.  The hash for
-  # :considered lists the number of objects that were considered for movement
-  # by the compactor, and the :moved hash lists the number of objects that
-  # were actually moved.  Some objects can't be moved (maybe they were pinned)
-  # so these numbers can be used to calculate compaction efficiency.
-  def self.latest_compact_info
-    Primitive.gc_compact_stats
-  end
-
-  #  call-seq:
-  #     GC.compact
-  #
-  # This function compacts objects together in Ruby's heap.  It eliminates
-  # unused space (or fragmentation) in the heap by moving objects in to that
-  # unused space.  This function returns a hash which contains statistics about
-  # which objects were moved.  See `GC.latest_gc_info` for details about
-  # compaction statistics.
-  #
-  # This method is implementation specific and not expected to be implemented
-  # in any implementation besides MRI.
-  def self.compact
-    Primitive.gc_compact
-  end
-
-  # call-seq:
-  #    GC.verify_compaction_references(toward: nil, double_heap: false) -> hash
-  #
-  # 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 doubles 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.
-  def self.verify_compaction_references(toward: nil, double_heap: false)
-    Primitive.gc_verify_compaction_references(double_heap, toward == :empty)
-  end
-
   # call-seq:
   #     GC.using_rvargc? -> true or false
   #
-- 
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