1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #ifndef SRC_TRACING_TEST_ALIGNED_BUFFER_TEST_H_ 18 #define SRC_TRACING_TEST_ALIGNED_BUFFER_TEST_H_ 19 20 #include <stdlib.h> 21 22 #include <memory> 23 24 #include "gtest/gtest.h" 25 #include "perfetto/base/utils.h" 26 #include "src/tracing/test/test_shared_memory.h" 27 28 namespace perfetto { 29 30 // Base parametrized test for unittests that require an aligned buffer. 31 class AlignedBufferTest : public ::testing::TestWithParam<size_t> { 32 public: 33 static constexpr size_t kNumPages = 14; 34 void SetUp() override; 35 void TearDown() override; 36 37 uint8_t* buf() const { return reinterpret_cast<uint8_t*>(buf_->start()); } 38 size_t buf_size() const { return buf_->size(); } 39 size_t page_size() const { return page_size_; } 40 41 private: 42 size_t page_size_ = 0; 43 44 // This doesn't need any sharing. TestSharedMemory just happens to have the 45 // right harness to create a zeroed page-aligned buffer. 46 std::unique_ptr<TestSharedMemory> buf_; 47 }; 48 49 } // namespace perfetto 50 51 #endif // SRC_TRACING_TEST_ALIGNED_BUFFER_TEST_H_ 52
