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-rw-r--r--gc.c4
-rw-r--r--method.h6
-rw-r--r--rjit_c.rb6
-rw-r--r--test/ruby/test_module.rb4
-rw-r--r--vm_insnhelper.c2
-rw-r--r--vm_method.c105
6 files changed, 54 insertions, 73 deletions
diff --git a/gc.c b/gc.c
index 75cc018a2d..c99f94a129 100644
--- a/gc.c
+++ b/gc.c
@@ -13690,7 +13690,7 @@ rb_raw_obj_info_buitin_type(char *const buff, const size_t buff_size, const VALU
{
const rb_method_entry_t *me = &RANY(obj)->as.imemo.ment;
- APPEND_F(":%s (%s%s%s%s) type:%s alias:%d owner:%p defined_class:%p",
+ APPEND_F(":%s (%s%s%s%s) type:%s aliased:%d owner:%p defined_class:%p",
rb_id2name(me->called_id),
METHOD_ENTRY_VISI(me) == METHOD_VISI_PUBLIC ? "pub" :
METHOD_ENTRY_VISI(me) == METHOD_VISI_PRIVATE ? "pri" : "pro",
@@ -13698,7 +13698,7 @@ rb_raw_obj_info_buitin_type(char *const buff, const size_t buff_size, const VALU
METHOD_ENTRY_CACHED(me) ? ",cc" : "",
METHOD_ENTRY_INVALIDATED(me) ? ",inv" : "",
me->def ? rb_method_type_name(me->def->type) : "NULL",
- me->def ? me->def->alias_count : -1,
+ me->def ? me->def->aliased : -1,
(void *)me->owner, // obj_info(me->owner),
(void *)me->defined_class); //obj_info(me->defined_class)));
diff --git a/method.h b/method.h
index fbbcad075f..ef096e543b 100644
--- a/method.h
+++ b/method.h
@@ -179,9 +179,9 @@ typedef struct rb_method_optimized {
struct rb_method_definition_struct {
BITFIELD(rb_method_type_t, type, VM_METHOD_TYPE_MINIMUM_BITS);
unsigned int iseq_overload: 1;
- int alias_count : 27;
- int complemented_count : 28;
unsigned int no_redef_warning: 1;
+ unsigned int aliased : 1;
+ int reference_count : 28;
union {
rb_method_iseq_t iseq;
@@ -214,7 +214,7 @@ void rb_add_method_optimized(VALUE klass, ID mid, enum method_optimized_type, un
void rb_add_refined_method_entry(VALUE refined_class, ID mid);
rb_method_entry_t *rb_method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *, rb_method_visibility_t noex);
-rb_method_entry_t *rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, const rb_method_definition_t *def);
+rb_method_entry_t *rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, rb_method_definition_t *def);
const rb_method_entry_t *rb_method_entry_at(VALUE obj, ID id);
diff --git a/rjit_c.rb b/rjit_c.rb
index 78d1a6cf74..b05980e110 100644
--- a/rjit_c.rb
+++ b/rjit_c.rb
@@ -1269,9 +1269,9 @@ module RubyVM::RJIT # :nodoc: all
"rb_method_definition_struct", Primitive.cexpr!("SIZEOF(struct rb_method_definition_struct)"),
type: [CType::BitField.new(4, 0), 0],
iseq_overload: [CType::BitField.new(1, 4), 4],
- alias_count: [CType::BitField.new(27, 5), 5],
- complemented_count: [CType::BitField.new(28, 0), 32],
- no_redef_warning: [CType::BitField.new(1, 4), 60],
+ no_redef_warning: [CType::BitField.new(1, 5), 5],
+ aliased: [CType::BitField.new(1, 6), 6],
+ reference_count: [CType::BitField.new(28, 0), 32],
body: [CType::Union.new(
"", Primitive.cexpr!("SIZEOF(((struct rb_method_definition_struct *)NULL)->body)"),
iseq: self.rb_method_iseq_t,
diff --git a/test/ruby/test_module.rb b/test/ruby/test_module.rb
index cc22e2a77c..7aebf71d2d 100644
--- a/test/ruby/test_module.rb
+++ b/test/ruby/test_module.rb
@@ -3293,7 +3293,7 @@ class TestModule < Test::Unit::TestCase
end
def test_complemented_method_entry_memory_leak
- # [Bug #19894]
+ # [Bug #19894] [Bug #19896]
assert_no_memory_leak([], <<~PREP, <<~CODE, rss: true)
code = proc do
$c = Class.new do
@@ -3317,7 +3317,7 @@ class TestModule < Test::Unit::TestCase
end
1_000.times(&code)
PREP
- 100_000.times(&code)
+ 300_000.times(&code)
CODE
end
diff --git a/vm_insnhelper.c b/vm_insnhelper.c
index f98e6c6e75..9d3842ac75 100644
--- a/vm_insnhelper.c
+++ b/vm_insnhelper.c
@@ -3811,7 +3811,7 @@ aliased_callable_method_entry(const rb_callable_method_entry_t *me)
VM_ASSERT(RB_TYPE_P(orig_me->owner, T_MODULE));
cme = rb_method_entry_complement_defined_class(orig_me, me->called_id, defined_class);
- if (me->def->alias_count + me->def->complemented_count == 0) {
+ if (me->def->reference_count == 1) {
RB_OBJ_WRITE(me, &me->def->body.alias.original_me, cme);
}
else {
diff --git a/vm_method.c b/vm_method.c
index cf4cfd2e56..e2a3907c33 100644
--- a/vm_method.c
+++ b/vm_method.c
@@ -166,7 +166,6 @@ invalidate_negative_cache(ID mid)
}
}
-static rb_method_entry_t *rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, const rb_method_definition_t *def);
const rb_method_entry_t * rb_method_entry_clone(const rb_method_entry_t *src_me);
static const rb_callable_method_entry_t *complemented_callable_method_entry(VALUE klass, ID id);
static const rb_callable_method_entry_t *lookup_overloaded_cme(const rb_callable_method_entry_t *cme);
@@ -403,33 +402,25 @@ rb_add_method_optimized(VALUE klass, ID mid, enum method_optimized_type opt_type
}
static void
-rb_method_definition_release(rb_method_definition_t *def, int complemented)
+rb_method_definition_release(rb_method_definition_t *def)
{
if (def != NULL) {
- const int alias_count = def->alias_count;
- const int complemented_count = def->complemented_count;
- VM_ASSERT(alias_count >= 0);
- VM_ASSERT(complemented_count >= 0);
-
- if (alias_count + complemented_count == 0) {
- if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d,%d (remove)\n", (void *)def,
- rb_id2name(def->original_id), alias_count, complemented_count);
+ const int reference_count = def->reference_count;
+ def->reference_count--;
+
+ VM_ASSERT(reference_count >= 0);
+
+ if (def->reference_count == 0) {
+ if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d (remove)\n", (void *)def,
+ rb_id2name(def->original_id), def->reference_count);
if (def->type == VM_METHOD_TYPE_BMETHOD && def->body.bmethod.hooks) {
xfree(def->body.bmethod.hooks);
}
xfree(def);
}
else {
- if (complemented) {
- VM_ASSERT(def->complemented_count > 0);
- def->complemented_count--;
- }
- else if (def->alias_count > 0) {
- def->alias_count--;
- }
-
- if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d->%d,%d->%d (dec)\n", (void *)def, rb_id2name(def->original_id),
- alias_count, def->alias_count, complemented_count, def->complemented_count);
+ if (METHOD_DEBUG) fprintf(stderr, "-%p-%s:%d->%d (dec)\n", (void *)def, rb_id2name(def->original_id),
+ reference_count, def->reference_count);
}
}
}
@@ -442,7 +433,7 @@ rb_free_method_entry(const rb_method_entry_t *me)
if (me->def && me->def->iseq_overload) {
delete_overloaded_cme((const rb_callable_method_entry_t *)me);
}
- rb_method_definition_release(me->def, METHOD_ENTRY_COMPLEMENTED(me));
+ rb_method_definition_release(me->def);
}
static inline rb_method_entry_t *search_method(VALUE klass, ID id, VALUE *defined_class_ptr);
@@ -509,10 +500,20 @@ setup_method_cfunc_struct(rb_method_cfunc_t *cfunc, VALUE (*func)(ANYARGS), int
cfunc->invoker = call_cfunc_invoker_func(argc);
}
+static rb_method_definition_t *
+method_definition_addref(rb_method_definition_t *def, bool complemented)
+{
+ if (!complemented && def->reference_count > 0) def->aliased = true;
+ def->reference_count++;
+ if (METHOD_DEBUG) fprintf(stderr, "+%p-%s:%d\n", (void *)def, rb_id2name(def->original_id), def->reference_count);
+ return def;
+}
+
void
rb_method_definition_set(const rb_method_entry_t *me, rb_method_definition_t *def, void *opts)
{
- *(rb_method_definition_t **)&me->def = def;
+ rb_method_definition_release(me->def);
+ *(rb_method_definition_t **)&me->def = method_definition_addref(def, METHOD_ENTRY_COMPLEMENTED(me));
if (opts != NULL) {
switch (def->type) {
@@ -642,25 +643,10 @@ rb_method_definition_create(rb_method_type_t type, ID mid)
return def;
}
-static rb_method_definition_t *
-method_definition_addref(rb_method_definition_t *def)
-{
- def->alias_count++;
- if (METHOD_DEBUG) fprintf(stderr, "+%p-%s:%d\n", (void *)def, rb_id2name(def->original_id), def->alias_count);
- return def;
-}
-
-static rb_method_definition_t *
-method_definition_addref_complement(rb_method_definition_t *def)
-{
- def->complemented_count++;
- if (METHOD_DEBUG) fprintf(stderr, "+%p-%s:%d\n", (void *)def, rb_id2name(def->original_id), def->complemented_count);
- return def;
-}
-
static rb_method_entry_t *
-rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, const rb_method_definition_t *def)
+rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, rb_method_definition_t *def, bool complement)
{
+ if (def) method_definition_addref(def, complement);
rb_method_entry_t *me = (rb_method_entry_t *)rb_imemo_new(imemo_ment, (VALUE)def, (VALUE)called_id, owner, defined_class);
return me;
}
@@ -682,9 +668,9 @@ filter_defined_class(VALUE klass)
}
rb_method_entry_t *
-rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, const rb_method_definition_t *def)
+rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, rb_method_definition_t *def)
{
- rb_method_entry_t *me = rb_method_entry_alloc(called_id, klass, filter_defined_class(klass), def);
+ rb_method_entry_t *me = rb_method_entry_alloc(called_id, klass, filter_defined_class(klass), def, false);
METHOD_ENTRY_FLAGS_SET(me, visi, ruby_running ? FALSE : TRUE);
if (def != NULL) method_definition_reset(me);
return me;
@@ -693,13 +679,7 @@ rb_method_entry_create(ID called_id, VALUE klass, rb_method_visibility_t visi, c
const rb_method_entry_t *
rb_method_entry_clone(const rb_method_entry_t *src_me)
{
- rb_method_entry_t *me = rb_method_entry_alloc(src_me->called_id, src_me->owner, src_me->defined_class, src_me->def);
- if (METHOD_ENTRY_COMPLEMENTED(src_me)) {
- method_definition_addref_complement(src_me->def);
- }
- else {
- method_definition_addref(src_me->def);
- }
+ rb_method_entry_t *me = rb_method_entry_alloc(src_me->called_id, src_me->owner, src_me->defined_class, src_me->def, METHOD_ENTRY_COMPLEMENTED(src_me));
METHOD_ENTRY_FLAGS_COPY(me, src_me);
return me;
@@ -725,10 +705,8 @@ rb_method_entry_complement_defined_class(const rb_method_entry_t *src_me, ID cal
refined.owner = orig_me->owner;
def = NULL;
}
- else {
- method_definition_addref_complement(def);
- }
- me = rb_method_entry_alloc(called_id, src_me->owner, defined_class, def);
+
+ me = rb_method_entry_alloc(called_id, src_me->owner, defined_class, def, true);
METHOD_ENTRY_FLAGS_COPY(me, src_me);
METHOD_ENTRY_COMPLEMENTED_SET(me);
if (!def) {
@@ -744,7 +722,8 @@ rb_method_entry_complement_defined_class(const rb_method_entry_t *src_me, ID cal
void
rb_method_entry_copy(rb_method_entry_t *dst, const rb_method_entry_t *src)
{
- *(rb_method_definition_t **)&dst->def = method_definition_addref(src->def);
+ rb_method_definition_release(dst->def);
+ *(rb_method_definition_t **)&dst->def = method_definition_addref(src->def, METHOD_ENTRY_COMPLEMENTED(src));
method_definition_reset(dst);
dst->called_id = src->called_id;
RB_OBJ_WRITE((VALUE)dst, &dst->owner, src->owner);
@@ -771,7 +750,8 @@ make_method_entry_refined(VALUE owner, rb_method_entry_t *me)
rb_method_entry_alloc(me->called_id, me->owner,
me->defined_class ?
me->defined_class : owner,
- method_definition_addref(me->def));
+ me->def,
+ true);
METHOD_ENTRY_FLAGS_COPY(refined.orig_me, me);
refined.owner = owner;
@@ -899,7 +879,7 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
if (RTEST(ruby_verbose) &&
type != VM_METHOD_TYPE_UNDEF &&
- (old_def->alias_count == 0) &&
+ (old_def->aliased == false) &&
(!old_def->no_redef_warning) &&
!make_refined &&
old_def->type != VM_METHOD_TYPE_UNDEF &&
@@ -929,7 +909,9 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
/* create method entry */
me = rb_method_entry_create(mid, defined_class, visi, NULL);
- if (def == NULL) def = rb_method_definition_create(type, original_id);
+ if (def == NULL) {
+ def = rb_method_definition_create(type, original_id);
+ }
rb_method_definition_set(me, def, opts);
rb_clear_method_cache(klass, mid);
@@ -967,7 +949,7 @@ rb_method_entry_make(VALUE klass, ID mid, VALUE defined_class, rb_method_visibil
return me;
}
-static rb_method_entry_t *rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, const rb_method_definition_t *def);
+static rb_method_entry_t *rb_method_entry_alloc(ID called_id, VALUE owner, VALUE defined_class, rb_method_definition_t *def, bool refined);
static st_table *
overloaded_cme_table(void)
@@ -1057,7 +1039,8 @@ get_overloaded_cme(const rb_callable_method_entry_t *cme)
rb_method_entry_t *me = rb_method_entry_alloc(cme->called_id,
cme->owner,
cme->defined_class,
- def);
+ def,
+ false);
ASSERT_vm_locking();
st_insert(overloaded_cme_table(), (st_data_t)cme, (st_data_t)me);
@@ -1136,9 +1119,7 @@ method_entry_set(VALUE klass, ID mid, const rb_method_entry_t *me,
if (newme == me) {
me->def->no_redef_warning = TRUE;
}
- else {
- method_definition_addref(me->def);
- }
+
method_added(klass, mid);
return newme;
}
@@ -1352,7 +1333,7 @@ negative_cme(ID mid)
cme = (rb_callable_method_entry_t *)cme_data;
}
else {
- cme = (rb_callable_method_entry_t *)rb_method_entry_alloc(mid, Qnil, Qnil, NULL);
+ cme = (rb_callable_method_entry_t *)rb_method_entry_alloc(mid, Qnil, Qnil, NULL, false);
rb_id_table_insert(vm->negative_cme_table, mid, (VALUE)cme);
}