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_TEST_SHARED_MEMORY_H_ 18 #define SRC_TRACING_TEST_TEST_SHARED_MEMORY_H_ 19 20 #include <stddef.h> 21 22 #include <memory> 23 24 #include "perfetto/base/page_allocator.h" 25 #include "perfetto/tracing/core/shared_memory.h" 26 27 namespace perfetto { 28 29 // A dummy implementation of shared memory for single process unittests 30 // (just a wrapper around malloc() that fits the SharedMemory API). 31 class TestSharedMemory : public SharedMemory { 32 public: 33 class Factory : public SharedMemory::Factory { 34 public: 35 ~Factory() override; 36 std::unique_ptr<SharedMemory> CreateSharedMemory(size_t size) override; 37 }; 38 39 explicit TestSharedMemory(size_t size); 40 ~TestSharedMemory() override; 41 42 void* start() const override { return mem_.get(); } 43 size_t size() const override { return size_; } 44 45 base::PageAllocator::UniquePtr mem_; 46 size_t size_; 47 }; 48 49 } // namespace perfetto 50 51 #endif // SRC_TRACING_TEST_TEST_SHARED_MEMORY_H_ 52
