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// Copyright 2020 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "include/cppgc/allocation.h"
#include "include/cppgc/custom-space.h"
#include "src/heap/cppgc/heap-page.h"
#include "src/heap/cppgc/raw-heap.h"
#include "test/unittests/heap/cppgc/tests.h"
namespace cppgc {
class CustomSpace1 : public CustomSpace<CustomSpace1> {
public:
static constexpr size_t kSpaceIndex = 0;
};
class CustomSpace2 : public CustomSpace<CustomSpace2> {
public:
static constexpr size_t kSpaceIndex = 1;
};
namespace internal {
namespace {
size_t g_destructor_callcount;
class TestWithHeapWithCustomSpaces : public testing::TestWithPlatform {
protected:
TestWithHeapWithCustomSpaces() {
Heap::HeapOptions options;
options.custom_spaces.emplace_back(std::make_unique<CustomSpace1>());
options.custom_spaces.emplace_back(std::make_unique<CustomSpace2>());
heap_ = Heap::Create(platform_, std::move(options));
g_destructor_callcount = 0;
}
void PreciseGC() {
heap_->ForceGarbageCollectionSlow(
::testing::UnitTest::GetInstance()->current_test_info()->name(),
"Testing", cppgc::Heap::StackState::kNoHeapPointers);
}
cppgc::Heap* GetHeap() const { return heap_.get(); }
private:
std::unique_ptr<cppgc::Heap> heap_;
};
class RegularGCed final : public GarbageCollected<RegularGCed> {
public:
void Trace(Visitor*) const {}
};
class CustomGCed1 final : public GarbageCollected<CustomGCed1> {
public:
~CustomGCed1() { g_destructor_callcount++; }
void Trace(Visitor*) const {}
};
class CustomGCed2 final : public GarbageCollected<CustomGCed2> {
public:
~CustomGCed2() { g_destructor_callcount++; }
void Trace(Visitor*) const {}
};
class CustomGCedBase : public GarbageCollected<CustomGCedBase> {
public:
void Trace(Visitor*) const {}
};
class CustomGCedFinal1 final : public CustomGCedBase {
public:
~CustomGCedFinal1() { g_destructor_callcount++; }
};
class CustomGCedFinal2 final : public CustomGCedBase {
public:
~CustomGCedFinal2() { g_destructor_callcount++; }
};
} // namespace
} // namespace internal
template <>
struct SpaceTrait<internal::CustomGCed1> {
using Space = CustomSpace1;
};
template <>
struct SpaceTrait<internal::CustomGCed2> {
using Space = CustomSpace2;
};
template <typename T>
struct SpaceTrait<
T, std::enable_if_t<std::is_base_of<internal::CustomGCedBase, T>::value>> {
using Space = CustomSpace1;
};
namespace internal {
TEST_F(TestWithHeapWithCustomSpaces, AllocateOnCustomSpaces) {
auto* regular =
MakeGarbageCollected<RegularGCed>(GetHeap()->GetAllocationHandle());
auto* custom1 =
MakeGarbageCollected<CustomGCed1>(GetHeap()->GetAllocationHandle());
auto* custom2 =
MakeGarbageCollected<CustomGCed2>(GetHeap()->GetAllocationHandle());
EXPECT_EQ(RawHeap::kNumberOfRegularSpaces,
NormalPage::FromPayload(custom1)->space()->index());
EXPECT_EQ(RawHeap::kNumberOfRegularSpaces + 1,
NormalPage::FromPayload(custom2)->space()->index());
EXPECT_EQ(static_cast<size_t>(RawHeap::RegularSpaceType::kNormal1),
NormalPage::FromPayload(regular)->space()->index());
}
TEST_F(TestWithHeapWithCustomSpaces,
AllocateOnCustomSpacesSpecifiedThroughBase) {
auto* regular =
MakeGarbageCollected<RegularGCed>(GetHeap()->GetAllocationHandle());
auto* custom1 =
MakeGarbageCollected<CustomGCedFinal1>(GetHeap()->GetAllocationHandle());
auto* custom2 =
MakeGarbageCollected<CustomGCedFinal2>(GetHeap()->GetAllocationHandle());
EXPECT_EQ(RawHeap::kNumberOfRegularSpaces,
NormalPage::FromPayload(custom1)->space()->index());
EXPECT_EQ(RawHeap::kNumberOfRegularSpaces,
NormalPage::FromPayload(custom2)->space()->index());
EXPECT_EQ(static_cast<size_t>(RawHeap::RegularSpaceType::kNormal1),
NormalPage::FromPayload(regular)->space()->index());
}
TEST_F(TestWithHeapWithCustomSpaces, SweepCustomSpace) {
MakeGarbageCollected<CustomGCedFinal1>(GetHeap()->GetAllocationHandle());
MakeGarbageCollected<CustomGCedFinal2>(GetHeap()->GetAllocationHandle());
MakeGarbageCollected<CustomGCed1>(GetHeap()->GetAllocationHandle());
MakeGarbageCollected<CustomGCed2>(GetHeap()->GetAllocationHandle());
EXPECT_EQ(0u, g_destructor_callcount);
PreciseGC();
EXPECT_EQ(4u, g_destructor_callcount);
}
} // namespace internal
// Test custom space compactability.
class CompactableCustomSpace : public CustomSpace<CompactableCustomSpace> {
public:
static constexpr size_t kSpaceIndex = 0;
static constexpr bool kSupportsCompaction = true;
};
class NotCompactableCustomSpace
: public CustomSpace<NotCompactableCustomSpace> {
public:
static constexpr size_t kSpaceIndex = 1;
static constexpr bool kSupportsCompaction = false;
};
class DefaultCompactableCustomSpace
: public CustomSpace<DefaultCompactableCustomSpace> {
public:
static constexpr size_t kSpaceIndex = 2;
// By default space are not compactable.
};
namespace internal {
namespace {
class TestWithHeapWithCompactableCustomSpaces
: public testing::TestWithPlatform {
protected:
TestWithHeapWithCompactableCustomSpaces() {
Heap::HeapOptions options;
options.custom_spaces.emplace_back(
std::make_unique<CompactableCustomSpace>());
options.custom_spaces.emplace_back(
std::make_unique<NotCompactableCustomSpace>());
options.custom_spaces.emplace_back(
std::make_unique<DefaultCompactableCustomSpace>());
heap_ = Heap::Create(platform_, std::move(options));
g_destructor_callcount = 0;
}
void PreciseGC() {
heap_->ForceGarbageCollectionSlow("TestWithHeapWithCompactableCustomSpaces",
"Testing",
cppgc::Heap::StackState::kNoHeapPointers);
}
cppgc::Heap* GetHeap() const { return heap_.get(); }
private:
std::unique_ptr<cppgc::Heap> heap_;
};
class CompactableGCed final : public GarbageCollected<CompactableGCed> {
public:
void Trace(Visitor*) const {}
};
class NotCompactableGCed final : public GarbageCollected<NotCompactableGCed> {
public:
void Trace(Visitor*) const {}
};
class DefaultCompactableGCed final
: public GarbageCollected<DefaultCompactableGCed> {
public:
void Trace(Visitor*) const {}
};
} // namespace
} // namespace internal
template <>
struct SpaceTrait<internal::CompactableGCed> {
using Space = CompactableCustomSpace;
};
template <>
struct SpaceTrait<internal::NotCompactableGCed> {
using Space = NotCompactableCustomSpace;
};
template <>
struct SpaceTrait<internal::DefaultCompactableGCed> {
using Space = DefaultCompactableCustomSpace;
};
namespace internal {
TEST_F(TestWithHeapWithCompactableCustomSpaces,
AllocateOnCompactableCustomSpaces) {
auto* compactable =
MakeGarbageCollected<CompactableGCed>(GetHeap()->GetAllocationHandle());
auto* not_compactable = MakeGarbageCollected<NotCompactableGCed>(
GetHeap()->GetAllocationHandle());
auto* default_compactable = MakeGarbageCollected<DefaultCompactableGCed>(
GetHeap()->GetAllocationHandle());
EXPECT_TRUE(NormalPage::FromPayload(compactable)->space()->is_compactable());
EXPECT_FALSE(
NormalPage::FromPayload(not_compactable)->space()->is_compactable());
EXPECT_FALSE(
NormalPage::FromPayload(default_compactable)->space()->is_compactable());
}
} // namespace internal
} // namespace cppgc
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