53 lines
1.4 KiB
C++
53 lines
1.4 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 <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <gtest/gtest.h>
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#include "butil/time.h"
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#include "butil/macros.h"
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namespace {
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class CachelineTest : public testing::Test {
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};
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struct BAIDU_CACHELINE_ALIGNMENT Bar {
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int y;
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};
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struct Foo {
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char dummy1[0];
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int z;
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BAIDU_CACHELINE_ALIGNMENT int x[0];
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int y;
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int m;
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Bar bar;
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};
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TEST_F(CachelineTest, cacheline_alignment) {
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ASSERT_EQ(64u, offsetof(Foo, x));
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ASSERT_EQ(64u, offsetof(Foo, y));
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ASSERT_EQ(68u, offsetof(Foo, m));
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ASSERT_EQ(128u, offsetof(Foo, bar));
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ASSERT_EQ(64u, sizeof(Bar));
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ASSERT_EQ(192u, sizeof(Foo));
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}
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}
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