blob: 3eca585a1b731d3acaa9e8b8c93701ea0951a3ed [file] [log] [blame]
// 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