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-rw-r--r--gc.c30
1 files changed, 26 insertions, 4 deletions
diff --git a/gc.c b/gc.c
index 3f1a94ecb0..c9c2bd8ad4 100644
--- a/gc.c
+++ b/gc.c
@@ -9671,6 +9671,7 @@ gc_move(rb_objspace_t *objspace, VALUE scan, VALUE free, size_t slot_size)
return (VALUE)src;
}
+#if GC_COMPACTION_SUPPORTED
static int
compare_free_slots(const void *left, const void *right, void *dummy)
{
@@ -9719,6 +9720,7 @@ gc_sort_heap_by_empty_slots(rb_objspace_t *objspace)
free(page_list);
}
}
+#endif
static void
gc_ref_update_array(rb_objspace_t * objspace, VALUE v)
@@ -10410,6 +10412,7 @@ gc_update_references(rb_objspace_t *objspace)
gc_update_table_refs(objspace, finalizer_table);
}
+#if GC_COMPACTION_SUPPORTED
/*
* call-seq:
* GC.latest_compact_info -> {:considered=>{:T_CLASS=>11}, :moved=>{:T_CLASS=>11}}
@@ -10446,7 +10449,11 @@ gc_compact_stats(VALUE self)
return h;
}
+#else
+# define gc_compact_stats rb_f_notimplement
+#endif
+#if GC_COMPACTION_SUPPORTED
static void
root_obj_check_moved_i(const char *category, VALUE obj, void *data)
{
@@ -10508,6 +10515,10 @@ heap_check_moved_i(void *vstart, void *vend, size_t stride, void *data)
*
* This method is implementation specific and not expected to be implemented
* in any implementation besides MRI.
+ *
+ * To test whether GC compaction is supported, use the idiom:
+ *
+ * GC.respond_to?(:compact)
*/
static VALUE
gc_compact(VALUE self)
@@ -10517,7 +10528,11 @@ gc_compact(VALUE self)
return gc_compact_stats(self);
}
+#else
+# define gc_compact rb_f_notimplement
+#endif
+#if GC_COMPACTION_SUPPORTED
/*
* call-seq:
* GC.verify_compaction_references(toward: nil, double_heap: false) -> hash
@@ -10586,6 +10601,9 @@ gc_verify_compaction_references(int argc, VALUE *argv, VALUE self)
return gc_compact_stats(self);
}
+#else
+# define gc_verify_compaction_references rb_f_notimplement
+#endif
VALUE
rb_gc_start(void)
@@ -11173,6 +11191,7 @@ gc_disable(rb_execution_context_t *ec, VALUE _)
return rb_gc_disable();
}
+#if GC_COMPACTION_SUPPORTED
/*
* call-seq:
* GC.auto_compact = flag
@@ -11194,14 +11213,14 @@ gc_set_auto_compact(VALUE _, VALUE v)
}
#endif
-#if !GC_COMPACTION_SUPPORTED
- rb_raise(rb_eNotImpError, "Automatic compaction isn't available on this platform");
-#endif
-
ruby_enable_autocompact = RTEST(v);
return v;
}
+#else
+# define gc_set_auto_compact rb_f_notimplement
+#endif
+#if GC_COMPACTION_SUPPORTED
/*
* call-seq:
* GC.auto_compact -> true or false
@@ -11213,6 +11232,9 @@ gc_get_auto_compact(VALUE _)
{
return RBOOL(ruby_enable_autocompact);
}
+#else
+# define gc_get_auto_compact rb_f_notimplement
+#endif
static int
get_envparam_size(const char *name, size_t *default_value, size_t lower_bound)