2013-07-22 08:32:24 +00:00
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// Copyright 2011 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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2013-12-18 08:09:37 +00:00
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#include <utility>
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2014-06-03 08:12:43 +00:00
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#include "src/global-handles.h"
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2018-04-09 19:11:22 +00:00
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#include "src/heap/factory.h"
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2016-09-01 12:01:33 +00:00
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#include "src/isolate.h"
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#include "src/objects-inl.h"
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2018-05-17 12:28:56 +00:00
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#include "src/objects/hash-table-inl.h"
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2018-05-23 13:29:02 +00:00
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#include "src/objects/js-collection-inl.h"
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2014-06-03 08:12:43 +00:00
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#include "test/cctest/cctest.h"
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2016-05-20 13:30:22 +00:00
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#include "test/cctest/heap/heap-utils.h"
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2013-07-22 08:32:24 +00:00
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2017-08-11 11:22:28 +00:00
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namespace v8 {
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namespace internal {
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2017-09-21 03:29:52 +00:00
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namespace test_weaksets {
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2013-07-22 08:32:24 +00:00
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static Isolate* GetIsolateFrom(LocalContext* context) {
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return reinterpret_cast<Isolate*>((*context)->GetIsolate());
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}
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static Handle<JSWeakSet> AllocateJSWeakSet(Isolate* isolate) {
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Factory* factory = isolate->factory();
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Handle<Map> map = factory->NewMap(JS_WEAK_SET_TYPE, JSWeakSet::kSize);
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Handle<JSObject> weakset_obj = factory->NewJSObjectFromMap(map);
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2018-06-23 09:05:50 +00:00
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Handle<JSWeakSet> weakset(JSWeakSet::cast(*weakset_obj), isolate);
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2014-05-28 08:35:16 +00:00
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// Do not leak handles for the hash table, it would make entries strong.
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{
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HandleScope scope(isolate);
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2018-06-07 05:57:16 +00:00
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Handle<EphemeronHashTable> table = EphemeronHashTable::New(isolate, 1);
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2014-05-28 08:35:16 +00:00
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weakset->set_table(*table);
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}
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2013-07-22 08:32:24 +00:00
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return weakset;
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}
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static int NumberOfWeakCalls = 0;
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2016-05-06 12:29:00 +00:00
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static void WeakPointerCallback(const v8::WeakCallbackInfo<void>& data) {
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2013-12-18 08:09:37 +00:00
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std::pair<v8::Persistent<v8::Value>*, int>* p =
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reinterpret_cast<std::pair<v8::Persistent<v8::Value>*, int>*>(
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data.GetParameter());
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2015-12-07 05:36:41 +00:00
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CHECK_EQ(1234, p->second);
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2013-07-22 08:32:24 +00:00
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NumberOfWeakCalls++;
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2013-12-18 08:09:37 +00:00
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p->first->Reset();
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2013-07-22 08:32:24 +00:00
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}
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TEST(WeakSet_Weakness) {
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FLAG_incremental_marking = false;
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LocalContext context;
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Isolate* isolate = GetIsolateFrom(&context);
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Factory* factory = isolate->factory();
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HandleScope scope(isolate);
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Handle<JSWeakSet> weakset = AllocateJSWeakSet(isolate);
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GlobalHandles* global_handles = isolate->global_handles();
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// Keep global reference to the key.
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Handle<Object> key;
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{
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HandleScope scope(isolate);
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Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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Handle<JSObject> object = factory->NewJSObjectFromMap(map);
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key = global_handles->Create(*object);
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}
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CHECK(!global_handles->IsWeak(key.location()));
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// Put entry into weak set.
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{
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HandleScope scope(isolate);
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2015-02-05 09:40:13 +00:00
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Handle<Smi> smi(Smi::FromInt(23), isolate);
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2017-08-21 23:05:53 +00:00
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int32_t hash = key->GetOrCreateHash(isolate)->value();
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2017-06-15 21:35:42 +00:00
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JSWeakCollection::Set(weakset, key, smi, hash);
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2013-07-22 08:32:24 +00:00
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}
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(1, EphemeronHashTable::cast(weakset->table())->NumberOfElements());
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2013-07-22 08:32:24 +00:00
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// Force a full GC.
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2016-09-07 10:02:58 +00:00
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CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
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2013-07-22 08:32:24 +00:00
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CHECK_EQ(0, NumberOfWeakCalls);
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(1, EphemeronHashTable::cast(weakset->table())->NumberOfElements());
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2013-07-22 08:32:24 +00:00
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CHECK_EQ(
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2018-06-07 05:57:16 +00:00
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0, EphemeronHashTable::cast(weakset->table())->NumberOfDeletedElements());
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2013-07-22 08:32:24 +00:00
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// Make the global reference to the key weak.
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2017-01-25 10:46:01 +00:00
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std::pair<Handle<Object>*, int> handle_and_id(&key, 1234);
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GlobalHandles::MakeWeak(
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key.location(), reinterpret_cast<void*>(&handle_and_id),
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&WeakPointerCallback, v8::WeakCallbackType::kParameter);
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2013-07-22 08:32:24 +00:00
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CHECK(global_handles->IsWeak(key.location()));
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2016-09-07 10:02:58 +00:00
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CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
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2013-07-22 08:32:24 +00:00
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CHECK_EQ(1, NumberOfWeakCalls);
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(0, EphemeronHashTable::cast(weakset->table())->NumberOfElements());
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2016-04-15 12:15:54 +00:00
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CHECK_EQ(
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2018-06-07 05:57:16 +00:00
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1, EphemeronHashTable::cast(weakset->table())->NumberOfDeletedElements());
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2013-07-22 08:32:24 +00:00
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}
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TEST(WeakSet_Shrinking) {
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LocalContext context;
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Isolate* isolate = GetIsolateFrom(&context);
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Factory* factory = isolate->factory();
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HandleScope scope(isolate);
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Handle<JSWeakSet> weakset = AllocateJSWeakSet(isolate);
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// Check initial capacity.
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(32, EphemeronHashTable::cast(weakset->table())->Capacity());
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2013-07-22 08:32:24 +00:00
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// Fill up weak set to trigger capacity change.
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{
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HandleScope scope(isolate);
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Handle<Map> map = factory->NewMap(JS_OBJECT_TYPE, JSObject::kHeaderSize);
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for (int i = 0; i < 32; i++) {
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Handle<JSObject> object = factory->NewJSObjectFromMap(map);
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2015-02-05 09:40:13 +00:00
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Handle<Smi> smi(Smi::FromInt(i), isolate);
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2017-08-21 23:05:53 +00:00
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int32_t hash = object->GetOrCreateHash(isolate)->value();
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2017-06-15 21:35:42 +00:00
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JSWeakCollection::Set(weakset, object, smi, hash);
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2013-07-22 08:32:24 +00:00
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}
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}
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// Check increased capacity.
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(128, EphemeronHashTable::cast(weakset->table())->Capacity());
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2013-07-22 08:32:24 +00:00
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// Force a full GC.
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(32, EphemeronHashTable::cast(weakset->table())->NumberOfElements());
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2013-07-22 08:32:24 +00:00
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CHECK_EQ(
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2018-06-07 05:57:16 +00:00
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0, EphemeronHashTable::cast(weakset->table())->NumberOfDeletedElements());
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2016-09-07 10:02:58 +00:00
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CcTest::CollectAllGarbage(Heap::kAbortIncrementalMarkingMask);
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(0, EphemeronHashTable::cast(weakset->table())->NumberOfElements());
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2013-07-22 08:32:24 +00:00
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CHECK_EQ(
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2018-06-07 05:57:16 +00:00
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32,
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EphemeronHashTable::cast(weakset->table())->NumberOfDeletedElements());
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2013-07-22 08:32:24 +00:00
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// Check shrunk capacity.
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2018-06-07 05:57:16 +00:00
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CHECK_EQ(32, EphemeronHashTable::cast(weakset->table())->Capacity());
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2013-07-22 08:32:24 +00:00
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}
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// Test that weak set values on an evacuation candidate which are not reachable
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// by other paths are correctly recorded in the slots buffer.
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TEST(WeakSet_Regress2060a) {
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2014-04-14 13:52:41 +00:00
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if (i::FLAG_never_compact) return;
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2013-07-22 08:32:24 +00:00
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FLAG_always_compact = true;
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LocalContext context;
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Isolate* isolate = GetIsolateFrom(&context);
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Factory* factory = isolate->factory();
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Heap* heap = isolate->heap();
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HandleScope scope(isolate);
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2017-11-08 12:56:08 +00:00
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Handle<JSFunction> function =
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factory->NewFunctionForTest(factory->function_string());
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2013-07-22 08:32:24 +00:00
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Handle<JSObject> key = factory->NewJSObject(function);
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Handle<JSWeakSet> weakset = AllocateJSWeakSet(isolate);
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// Start second old-space page so that values land on evacuation candidate.
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2018-05-22 16:58:12 +00:00
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Page* first_page = heap->old_space()->first_page();
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2016-05-20 13:30:22 +00:00
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heap::SimulateFullSpace(heap->old_space());
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2013-07-22 08:32:24 +00:00
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// Fill up weak set with values on an evacuation candidate.
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{
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HandleScope scope(isolate);
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for (int i = 0; i < 32; i++) {
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Handle<JSObject> object = factory->NewJSObject(function, TENURED);
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2016-02-10 09:46:27 +00:00
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CHECK(!heap->InNewSpace(*object));
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2013-07-22 08:32:24 +00:00
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CHECK(!first_page->Contains(object->address()));
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2017-08-21 23:05:53 +00:00
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int32_t hash = key->GetOrCreateHash(isolate)->value();
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2017-06-15 21:35:42 +00:00
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JSWeakCollection::Set(weakset, key, object, hash);
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2013-07-22 08:32:24 +00:00
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}
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}
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// Force compacting garbage collection.
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CHECK(FLAG_always_compact);
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2017-04-26 22:16:41 +00:00
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CcTest::CollectAllGarbage();
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2013-07-22 08:32:24 +00:00
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}
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// Test that weak set keys on an evacuation candidate which are reachable by
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// other strong paths are correctly recorded in the slots buffer.
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TEST(WeakSet_Regress2060b) {
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2014-04-14 13:52:41 +00:00
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if (i::FLAG_never_compact) return;
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2013-07-22 08:32:24 +00:00
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FLAG_always_compact = true;
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#ifdef VERIFY_HEAP
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FLAG_verify_heap = true;
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#endif
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LocalContext context;
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Isolate* isolate = GetIsolateFrom(&context);
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Factory* factory = isolate->factory();
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Heap* heap = isolate->heap();
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HandleScope scope(isolate);
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2017-11-08 12:56:08 +00:00
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Handle<JSFunction> function =
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factory->NewFunctionForTest(factory->function_string());
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2013-07-22 08:32:24 +00:00
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// Start second old-space page so that keys land on evacuation candidate.
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2018-05-22 16:58:12 +00:00
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Page* first_page = heap->old_space()->first_page();
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2016-05-20 13:30:22 +00:00
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heap::SimulateFullSpace(heap->old_space());
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2013-07-22 08:32:24 +00:00
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// Fill up weak set with keys on an evacuation candidate.
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Handle<JSObject> keys[32];
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for (int i = 0; i < 32; i++) {
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keys[i] = factory->NewJSObject(function, TENURED);
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2016-02-10 09:46:27 +00:00
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CHECK(!heap->InNewSpace(*keys[i]));
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2013-07-22 08:32:24 +00:00
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CHECK(!first_page->Contains(keys[i]->address()));
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}
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Handle<JSWeakSet> weakset = AllocateJSWeakSet(isolate);
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for (int i = 0; i < 32; i++) {
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2015-02-05 09:40:13 +00:00
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Handle<Smi> smi(Smi::FromInt(i), isolate);
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2017-08-21 23:05:53 +00:00
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int32_t hash = keys[i]->GetOrCreateHash(isolate)->value();
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2017-06-15 21:35:42 +00:00
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JSWeakCollection::Set(weakset, keys[i], smi, hash);
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2013-07-22 08:32:24 +00:00
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}
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// Force compacting garbage collection. The subsequent collections are used
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// to verify that key references were actually updated.
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CHECK(FLAG_always_compact);
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2017-04-26 22:16:41 +00:00
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CcTest::CollectAllGarbage();
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CcTest::CollectAllGarbage();
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CcTest::CollectAllGarbage();
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2013-07-22 08:32:24 +00:00
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}
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2017-08-11 11:22:28 +00:00
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2017-09-21 03:29:52 +00:00
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} // namespace test_weaksets
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2017-08-11 11:22:28 +00:00
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} // namespace internal
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} // namespace v8
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