| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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 <algorithm> |
| #include <cstddef> |
| #include <cstdint> |
| #include <limits> |
| |
| #include <gtest/gtest.h> |
| |
| #include "arrow/memory_pool.h" |
| #include "arrow/status.h" |
| #include "arrow/testing/gtest_util.h" |
| |
| namespace arrow { |
| |
| class TestMemoryPoolBase : public ::testing::Test { |
| public: |
| virtual ::arrow::MemoryPool* memory_pool() = 0; |
| |
| void TestMemoryTracking() { |
| auto pool = memory_pool(); |
| |
| uint8_t* data; |
| ASSERT_OK(pool->Allocate(100, &data)); |
| EXPECT_EQ(static_cast<uint64_t>(0), reinterpret_cast<uint64_t>(data) % 64); |
| ASSERT_EQ(100, pool->bytes_allocated()); |
| |
| uint8_t* data2; |
| ASSERT_OK(pool->Allocate(27, &data2)); |
| EXPECT_EQ(static_cast<uint64_t>(0), reinterpret_cast<uint64_t>(data2) % 64); |
| ASSERT_EQ(127, pool->bytes_allocated()); |
| |
| pool->Free(data, 100); |
| ASSERT_EQ(27, pool->bytes_allocated()); |
| pool->Free(data2, 27); |
| ASSERT_EQ(0, pool->bytes_allocated()); |
| } |
| |
| void TestOOM() { |
| auto pool = memory_pool(); |
| |
| uint8_t* data; |
| int64_t to_alloc = std::min<uint64_t>(std::numeric_limits<int64_t>::max(), |
| std::numeric_limits<size_t>::max()); |
| // subtract 63 to prevent overflow after the size is aligned |
| to_alloc -= 63; |
| ASSERT_RAISES(OutOfMemory, pool->Allocate(to_alloc, &data)); |
| } |
| |
| void TestReallocate() { |
| auto pool = memory_pool(); |
| |
| uint8_t* data; |
| ASSERT_OK(pool->Allocate(10, &data)); |
| ASSERT_EQ(10, pool->bytes_allocated()); |
| data[0] = 35; |
| data[9] = 12; |
| |
| // Expand |
| ASSERT_OK(pool->Reallocate(10, 20, &data)); |
| ASSERT_EQ(data[9], 12); |
| ASSERT_EQ(20, pool->bytes_allocated()); |
| |
| // Shrink |
| ASSERT_OK(pool->Reallocate(20, 5, &data)); |
| ASSERT_EQ(data[0], 35); |
| ASSERT_EQ(5, pool->bytes_allocated()); |
| |
| // Free |
| pool->Free(data, 5); |
| ASSERT_EQ(0, pool->bytes_allocated()); |
| } |
| }; |
| |
| } // namespace arrow |