151 lines
3.4 KiB
C++
151 lines
3.4 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include <gtest/gtest.h>
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#include "lib/allocator/page_arena.h"
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using namespace oceanbase::common;
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using namespace oceanbase::lib;
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struct MyPageAllocator : public ObIAllocator {
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void* alloc(const int64_t sz)
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{
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alloc_count_++;
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return ob_malloc(sz);
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}
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void free(void* p)
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{
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free_count_++;
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ob_free(p);
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}
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void freed(const int64_t sz)
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{
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UNUSED(sz);
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}
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void set_label(const lib::ObLabel& label)
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{
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UNUSED(label);
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}
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void set_tenant_id(uint64_t tenant_id)
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{
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UNUSED(tenant_id);
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}
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lib::ObLabel get_label() const
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{
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return 0;
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}
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static int64_t alloc_count_;
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static int64_t free_count_;
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};
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typedef PageArena<char, MyPageAllocator> MyModuleArena;
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int64_t MyPageAllocator::alloc_count_;
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int64_t MyPageAllocator::free_count_;
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#define CHECK(expect_ac, expect_fc) \
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do { \
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int64_t& ac = MyPageAllocator::alloc_count_; \
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int64_t& fc = MyPageAllocator::free_count_; \
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EXPECT_EQ(expect_ac, ac); \
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EXPECT_EQ(expect_fc, fc); \
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} while (0)
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#define RESET() \
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do { \
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int64_t& ac = MyPageAllocator::alloc_count_; \
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int64_t& fc = MyPageAllocator::free_count_; \
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EXPECT_EQ(ac, fc); \
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ac = fc = 0; \
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} while (0)
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TEST(TestPageArena, Basic)
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{
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{
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CHECK(0, 0);
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MyModuleArena ma;
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// Weird!! Default page size is 8K-32, and meta size for each page
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// is 32 bytes. So if we alloc 8K-32-31 which less than 8K-32-32
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// it will allocate a default normal page, and a big page.
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ma.alloc(8192 - 32 - 31);
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CHECK(2, 0);
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ma.free();
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CHECK(2, 2);
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RESET();
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// If we allocate memory with size 8K-32-32, it can be hold in the
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// first normal page.
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ma.alloc(8192 - 32 - 32);
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CHECK(1, 0);
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}
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CHECK(1, 1);
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RESET();
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}
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TEST(TestPageArena, Tracer1)
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{
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MyModuleArena ma;
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CHECK(0, 0);
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ma.alloc(10);
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CHECK(1, 0);
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EXPECT_TRUE(ma.set_tracer());
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ma.alloc(8192);
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ma.alloc(8192);
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ma.alloc(8192);
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CHECK(4, 0);
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constexpr auto N = 8192 - 32 - 32;
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for (int i = 0; i < N; i++) {
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ma.alloc(1);
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}
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CHECK(5, 0);
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EXPECT_TRUE(ma.revert_tracer());
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CHECK(5, 4);
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ma.free();
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RESET();
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}
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TEST(TestPageArena, Tracer2)
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{
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MyModuleArena ma;
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CHECK(0, 0);
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for (int i = 0; i < 2; i++) {
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EXPECT_TRUE(ma.set_tracer());
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CHECK(3 * i, 3 * i);
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// some small allocates
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constexpr auto N = 8192 - 32 - 32;
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for (int i = 0; i < N; i++) {
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ma.alloc(1);
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}
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CHECK(1 + 3 * i, 3 * i);
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// some big allocates
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ma.alloc(8192);
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ma.alloc(8192);
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EXPECT_TRUE(ma.revert_tracer());
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CHECK(3 + 3 * i, 3 + 3 * i);
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}
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ma.free();
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RESET();
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}
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int main(int argc, char** argv)
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{
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::testing::InitGoogleTest(&argc, argv);
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return RUN_ALL_TESTS();
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}
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