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/*
* Copyright 2008-2018 NVIDIA Corporation
* Modifications Copyright© 2019-2023 Advanced Micro Devices, Inc. All rights reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <thrust/device_malloc_allocator.h>
#include <thrust/device_vector.h>
#include <thrust/host_vector.h>
#include <thrust/system/cpp/vector.h>
#include "test_header.hpp"
#include <cstddef>
#include <memory>
struct my_allocator_with_custom_construct1 : thrust::device_malloc_allocator<int>
{
__host__ __device__ my_allocator_with_custom_construct1() {}
template <typename T>
__host__ __device__ void construct(T* p)
{
*p = 13;
}
};
TEST(AllocatorTests, TestAllocatorCustomDefaultConstruct)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
thrust::device_vector<int> ref(10, 13);
thrust::device_vector<int, my_allocator_with_custom_construct1> vec(10);
ASSERT_EQ(ref, vec);
}
struct my_allocator_with_custom_construct2 : thrust::device_malloc_allocator<int>
{
__host__ __device__ my_allocator_with_custom_construct2() {}
template <typename T, typename Arg>
__host__ __device__ void construct(T* p, const Arg&)
{
*p = 13;
}
};
TEST(AllocatorTests, TestAllocatorCustomCopyConstruct)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
thrust::device_vector<int> ref(10, 13);
thrust::device_vector<int> copy_from(10, 7);
thrust::device_vector<int, my_allocator_with_custom_construct2> vec(copy_from.begin(),
copy_from.end());
ASSERT_EQ(ref, vec);
}
static int g_state;
struct my_allocator_with_custom_destroy
{
using system_type = thrust::cpp::tag;
using value_type = int;
using reference = int&;
using const_reference = const int&;
__host__ __device__ my_allocator_with_custom_destroy() {}
__host__ __device__
my_allocator_with_custom_destroy(const my_allocator_with_custom_destroy& other)
: use_me_to_alloc(other.use_me_to_alloc)
{
}
__host__ __device__ ~my_allocator_with_custom_destroy() {}
template <typename T>
__host__ __device__ void destroy(T*)
{
#if !defined(THRUST_HIP_DEVICE_CODE)
g_state = 13;
#endif
}
value_type* allocate(std::ptrdiff_t n)
{
return use_me_to_alloc.allocate(n);
}
void deallocate(value_type* ptr, std::ptrdiff_t n)
{
use_me_to_alloc.deallocate(ptr, n);
}
bool operator==(const my_allocator_with_custom_destroy &) const
{
return true;
}
bool operator!=(const my_allocator_with_custom_destroy &other) const
{
return !(*this == other);
}
typedef thrust::detail::true_type is_always_equal;
// use composition rather than inheritance
// to avoid inheriting std::allocator's member
// function construct
std::allocator<int> use_me_to_alloc;
};
TEST(AllocatorTests, TestAllocatorCustomDestroy)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
thrust::cpp::vector<int, my_allocator_with_custom_destroy> vec(10);
// destroy everything
vec.shrink_to_fit();
ASSERT_EQ(13, g_state);
}
struct my_minimal_allocator
{
typedef int value_type;
// XXX ideally, we shouldn't require
// these two typedefs
typedef int& reference;
typedef const int& const_reference;
__host__ __device__ my_minimal_allocator() {}
__host__ __device__ my_minimal_allocator(const my_minimal_allocator& other)
: use_me_to_alloc(other.use_me_to_alloc)
{
}
__host__ __device__ ~my_minimal_allocator() {}
value_type* allocate(std::ptrdiff_t n)
{
return use_me_to_alloc.allocate(n);
}
void deallocate(value_type* ptr, std::ptrdiff_t n)
{
use_me_to_alloc.deallocate(ptr, n);
}
std::allocator<int> use_me_to_alloc;
};
TEST(AllocatorTests, TestAllocatorMinimal)
{
SCOPED_TRACE(testing::Message() << "with device_id= " << test::set_device_from_ctest());
thrust::cpp::vector<int, my_minimal_allocator> vec(10, 13);
// XXX copy to h_vec because ASSERT_EQUAL doesn't know about cpp::vector
thrust::host_vector<int> h_vec(vec.begin(), vec.end());
thrust::host_vector<int> ref(10, 13);
ASSERT_EQ(ref, h_vec);
}
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