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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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24849 CHECK(proxy->GetTarget()->SameValue(target)); | 24849 CHECK(proxy->GetTarget()->SameValue(target)); |
24850 CHECK(proxy->GetHandler()->SameValue(handler)); | 24850 CHECK(proxy->GetHandler()->SameValue(handler)); |
24851 | 24851 |
24852 proxy->Revoke(); | 24852 proxy->Revoke(); |
24853 CHECK(proxy->IsProxy()); | 24853 CHECK(proxy->IsProxy()); |
24854 CHECK(!target->IsProxy()); | 24854 CHECK(!target->IsProxy()); |
24855 CHECK(proxy->IsRevoked()); | 24855 CHECK(proxy->IsRevoked()); |
24856 CHECK(proxy->GetTarget()->SameValue(target)); | 24856 CHECK(proxy->GetTarget()->SameValue(target)); |
24857 CHECK(proxy->GetHandler()->IsNull()); | 24857 CHECK(proxy->GetHandler()->IsNull()); |
24858 } | 24858 } |
| 24859 |
| 24860 WeakCallCounterAndPersistent<Value>* CreateGarbageWithWeakCallCounter( |
| 24861 v8::Isolate* isolate, WeakCallCounter* counter) { |
| 24862 v8::Locker locker(isolate); |
| 24863 LocalContext env; |
| 24864 HandleScope scope(isolate); |
| 24865 WeakCallCounterAndPersistent<Value>* val = |
| 24866 new WeakCallCounterAndPersistent<Value>(counter); |
| 24867 val->handle.Reset(isolate, Object::New(isolate)); |
| 24868 val->handle.SetWeak(val, &WeakPointerCallback, |
| 24869 v8::WeakCallbackType::kParameter); |
| 24870 return val; |
| 24871 } |
| 24872 |
| 24873 class MemoryPressureThread : public v8::base::Thread { |
| 24874 public: |
| 24875 explicit MemoryPressureThread(v8::Isolate* isolate, |
| 24876 v8::MemoryPressureLevel level) |
| 24877 : Thread(Options("MemoryPressureThread")), |
| 24878 isolate_(isolate), |
| 24879 level_(level) {} |
| 24880 |
| 24881 virtual void Run() { isolate_->MemoryPressureNotification(level_); } |
| 24882 |
| 24883 private: |
| 24884 v8::Isolate* isolate_; |
| 24885 v8::MemoryPressureLevel level_; |
| 24886 }; |
| 24887 |
| 24888 TEST(MemoryPressure) { |
| 24889 v8::Isolate* isolate = CcTest::isolate(); |
| 24890 WeakCallCounter counter(1234); |
| 24891 |
| 24892 // Check that critical memory pressure notification sets GC interrupt. |
| 24893 auto garbage = CreateGarbageWithWeakCallCounter(isolate, &counter); |
| 24894 CHECK(!v8::Locker::IsLocked(isolate)); |
| 24895 { |
| 24896 v8::Locker locker(isolate); |
| 24897 v8::HandleScope scope(isolate); |
| 24898 LocalContext env; |
| 24899 MemoryPressureThread memory_pressure_thread( |
| 24900 isolate, v8::MemoryPressureLevel::kCritical); |
| 24901 memory_pressure_thread.Start(); |
| 24902 memory_pressure_thread.Join(); |
| 24903 // This should trigger GC. |
| 24904 CHECK_EQ(0, counter.NumberOfWeakCalls()); |
| 24905 CompileRun("(function noop() { return 0; })()"); |
| 24906 CHECK_EQ(1, counter.NumberOfWeakCalls()); |
| 24907 } |
| 24908 delete garbage; |
| 24909 // Check that critical memory pressure notification triggers GC. |
| 24910 garbage = CreateGarbageWithWeakCallCounter(isolate, &counter); |
| 24911 { |
| 24912 v8::Locker locker(isolate); |
| 24913 // If isolate is locked, memory pressure notification should trigger GC. |
| 24914 CHECK_EQ(1, counter.NumberOfWeakCalls()); |
| 24915 isolate->MemoryPressureNotification(v8::MemoryPressureLevel::kCritical); |
| 24916 CHECK_EQ(2, counter.NumberOfWeakCalls()); |
| 24917 } |
| 24918 delete garbage; |
| 24919 // Check that moderate memory pressure notification sets GC into memory |
| 24920 // optimizing mode. |
| 24921 isolate->MemoryPressureNotification(v8::MemoryPressureLevel::kModerate); |
| 24922 CHECK(CcTest::i_isolate()->heap()->ShouldOptimizeForMemoryUsage()); |
| 24923 // Check that disabling memory pressure returns GC into normal mode. |
| 24924 isolate->MemoryPressureNotification(v8::MemoryPressureLevel::kNone); |
| 24925 CHECK(!CcTest::i_isolate()->heap()->ShouldOptimizeForMemoryUsage()); |
| 24926 } |
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