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91 lines
2.6 KiB
C++
91 lines
2.6 KiB
C++
// Licensed to the Apache Software Foundation (ASF) under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing,
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// software distributed under the License is distributed on an
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// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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// KIND, either express or implied. See the License for the
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// specific language governing permissions and limitations
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// under the License.
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#include <algorithm>
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#include <cstddef>
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#include <cstdint>
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#include <limits>
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#include <gtest/gtest.h>
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#include "arrow/memory_pool.h"
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#include "arrow/status.h"
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#include "arrow/testing/gtest_util.h"
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namespace arrow {
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class TestMemoryPoolBase : public ::testing::Test {
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public:
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virtual ::arrow::MemoryPool* memory_pool() = 0;
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void TestMemoryTracking() {
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auto pool = memory_pool();
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uint8_t* data;
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ASSERT_OK(pool->Allocate(100, &data));
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EXPECT_EQ(static_cast<uint64_t>(0), reinterpret_cast<uint64_t>(data) % 64);
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ASSERT_EQ(100, pool->bytes_allocated());
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uint8_t* data2;
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ASSERT_OK(pool->Allocate(27, &data2));
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EXPECT_EQ(static_cast<uint64_t>(0), reinterpret_cast<uint64_t>(data2) % 64);
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ASSERT_EQ(127, pool->bytes_allocated());
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pool->Free(data, 100);
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ASSERT_EQ(27, pool->bytes_allocated());
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pool->Free(data2, 27);
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ASSERT_EQ(0, pool->bytes_allocated());
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}
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void TestOOM() {
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auto pool = memory_pool();
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uint8_t* data;
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int64_t to_alloc = std::min<uint64_t>(std::numeric_limits<int64_t>::max(),
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std::numeric_limits<size_t>::max());
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// subtract 63 to prevent overflow after the size is aligned
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to_alloc -= 63;
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ASSERT_RAISES(OutOfMemory, pool->Allocate(to_alloc, &data));
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}
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void TestReallocate() {
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auto pool = memory_pool();
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uint8_t* data;
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ASSERT_OK(pool->Allocate(10, &data));
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ASSERT_EQ(10, pool->bytes_allocated());
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data[0] = 35;
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data[9] = 12;
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// Expand
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ASSERT_OK(pool->Reallocate(10, 20, &data));
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ASSERT_EQ(data[9], 12);
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ASSERT_EQ(20, pool->bytes_allocated());
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// Shrink
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ASSERT_OK(pool->Reallocate(20, 5, &data));
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ASSERT_EQ(data[0], 35);
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ASSERT_EQ(5, pool->bytes_allocated());
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// Free
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pool->Free(data, 5);
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ASSERT_EQ(0, pool->bytes_allocated());
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}
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};
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} // namespace arrow
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