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#include <yql/essentials/minikql/mkql_alloc.cpp>
#include <library/cpp/testing/gtest/gtest.h>
#include <cstdlib>
namespace NKikimr::NMiniKQL {
enum class EAllocatorType {
DefaultAllocator,
ArrowAllocator,
HugeAllocator,
};
class MemoryTest: public ::testing::TestWithParam<std::tuple<int, EAllocatorType>> {
protected:
MemoryTest()
: ScopedAlloc_(__LOCATION__) {
}
size_t AllocSize() const {
return static_cast<size_t>(std::get<0>(GetParam()));
}
EAllocatorType GetAllocatorType() const {
return std::get<1>(GetParam());
}
void* AllocateMemory(size_t size) const {
EAllocatorType allocatorType = GetAllocatorType();
switch (allocatorType) {
case EAllocatorType::DefaultAllocator:
return TWithDefaultMiniKQLAlloc::AllocWithSize(size);
case EAllocatorType::ArrowAllocator:
return MKQLArrowAllocate(size);
case EAllocatorType::HugeAllocator:
return TMKQLHugeAllocator<char>::allocate(size);
default:
return nullptr; // Should never reach here
}
}
void Free(const void* mem, size_t size) const {
EAllocatorType allocatorType = GetAllocatorType();
switch (allocatorType) {
case EAllocatorType::DefaultAllocator:
TWithDefaultMiniKQLAlloc::FreeWithSize(mem, size);
break;
case EAllocatorType::ArrowAllocator:
MKQLArrowFree(mem, size);
break;
case EAllocatorType::HugeAllocator:
TMKQLHugeAllocator<char>::deallocate(const_cast<char*>(static_cast<const char*>(mem)), size);
break;
default:
break; // Should never reach here
}
}
void AccessMemory(volatile void* memory, ssize_t offset) const {
volatile char* ptr = static_cast<volatile char*>(memory) + offset;
*ptr = 'A'; // Perform a basic write operation
}
private:
TScopedAlloc ScopedAlloc_;
};
// Test naming function
std::string TestNameGenerator(const ::testing::TestParamInfo<MemoryTest::ParamType>& info) {
int sizeNumber = std::get<0>(info.param);
EAllocatorType allocatorType = std::get<1>(info.param);
std::string allocatorName = [&] () {
switch (allocatorType) {
case EAllocatorType::DefaultAllocator:
return "DefaultAllocator";
case EAllocatorType::ArrowAllocator:
return "ArrowAllocator";
case EAllocatorType::HugeAllocator:
return "HugeAllocator";
}
}();
return "Size" + std::to_string(sizeNumber) + "With" + allocatorName + "Allocator";
}
// Out of bounds access + use after free can be tested only with
// --sanitize=address.
#if defined(_asan_enabled_)
TEST_P(MemoryTest, AccessOutOfBounds) {
size_t allocationSize = AllocSize();
void* memory = AllocateMemory(allocationSize);
ASSERT_NE(memory, nullptr) << "Memory allocation failed.";
// Accessing valid memory.
ASSERT_NO_THROW({
AccessMemory(memory, 0);
AccessMemory(memory, allocationSize - 1);
});
// Accessing invalid left memory.
EXPECT_DEATH({ AccessMemory(memory, -1); }, "");
EXPECT_DEATH({ AccessMemory(memory, -8); }, "");
EXPECT_DEATH({ AccessMemory(memory, -16); }, "");
// Accessing invalid right memory.
EXPECT_DEATH({ AccessMemory(memory, allocationSize); }, "");
EXPECT_DEATH({ AccessMemory(memory, allocationSize + 6); }, "");
EXPECT_DEATH({ AccessMemory(memory, allocationSize + 12); }, "");
EXPECT_DEATH({ AccessMemory(memory, allocationSize + 15); }, "");
Free(memory, allocationSize);
}
TEST_P(MemoryTest, AccessAfterFree) {
size_t allocationSize = AllocSize();
void* memory = AllocateMemory(allocationSize);
void* memory2 = AllocateMemory(allocationSize);
ASSERT_NE(memory, nullptr) << "Memory allocation failed.";
Free(memory, allocationSize);
// Access after free — should crash
EXPECT_DEATH({ AccessMemory(memory, 0); }, "");
EXPECT_DEATH({ AccessMemory(memory, allocationSize / 2); }, "");
EXPECT_DEATH({ AccessMemory(memory, allocationSize - 1); }, "");
Free(memory2, allocationSize);
// Access after free — should crash
EXPECT_DEATH({ AccessMemory(memory2, 0); }, "");
EXPECT_DEATH({ AccessMemory(memory2, allocationSize / 2); }, "");
EXPECT_DEATH({ AccessMemory(memory2, allocationSize - 1); }, "");
}
#endif // defined(_asan_enabled_)
// Double free tracked only in DEBUG mode.
#ifndef NDEBUG
TEST_P(MemoryTest, DoubleFree) {
if (GetAllocatorType() == EAllocatorType::ArrowAllocator || GetAllocatorType() == EAllocatorType::HugeAllocator) {
GTEST_SKIP() << "Arrow and Huge allocators arae not instrumented yet to track double free.";
}
size_t allocationSize = AllocSize();
void* memory = AllocateMemory(allocationSize);
ASSERT_NE(memory, nullptr) << "Memory allocation failed.";
Free(memory, allocationSize);
// Attempting double free — should crash
EXPECT_DEATH({ Free(memory, allocationSize); }, "");
}
#endif // NDEBUG
// Allow empty tests for MSAN and other sanitizers.
GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(MemoryTest);
INSTANTIATE_TEST_SUITE_P(MemoryTests, MemoryTest,
::testing::Combine(
::testing::Values(8, 64, 32 * 1024, 64 * 1024, 128 * 1024, 64 * 1024 * 1024),
::testing::Values(
EAllocatorType::DefaultAllocator,
EAllocatorType::ArrowAllocator,
EAllocatorType::HugeAllocator)),
TestNameGenerator);
} // namespace NKikimr::NMiniKQL
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