1 /* 2 * Copyright (C) 2020 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 INCLUDE_PERFETTO_EXT_TRACE_PROCESSOR_IMPORTERS_MEMORY_TRACKER_MEMORY_ALLOCATOR_NODE_ID_H_ 18 #define INCLUDE_PERFETTO_EXT_TRACE_PROCESSOR_IMPORTERS_MEMORY_TRACKER_MEMORY_ALLOCATOR_NODE_ID_H_ 19 20 #include <stdint.h> 21 22 #include <string> 23 24 #include "perfetto/base/export.h" 25 26 namespace perfetto { 27 namespace trace_processor { 28 29 class PERFETTO_EXPORT_COMPONENT MemoryAllocatorNodeId { 30 public: 31 MemoryAllocatorNodeId(); 32 explicit MemoryAllocatorNodeId(uint64_t id); 33 ToUint64()34 uint64_t ToUint64() const { return id_; } 35 36 // Returns a (hex-encoded) string representation of the id. 37 std::string ToString() const; 38 empty()39 bool empty() const { return id_ == 0u; } 40 41 bool operator==(const MemoryAllocatorNodeId& other) const { 42 return id_ == other.id_; 43 } 44 45 bool operator!=(const MemoryAllocatorNodeId& other) const { 46 return !(*this == other); 47 } 48 49 bool operator<(const MemoryAllocatorNodeId& other) const { 50 return id_ < other.id_; 51 } 52 53 private: 54 uint64_t id_; 55 56 // Deliberately copy-able. 57 }; 58 59 } // namespace trace_processor 60 } // namespace perfetto 61 62 #endif // INCLUDE_PERFETTO_EXT_TRACE_PROCESSOR_IMPORTERS_MEMORY_TRACKER_MEMORY_ALLOCATOR_NODE_ID_H_ 63