| /* |
| * Copyright (C) 2015 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #ifndef GAPIC_ID_H |
| #define GAPIC_ID_H |
| |
| #include <functional> |
| #include <stdint.h> |
| |
| namespace gapic { |
| |
| // Id is a 20-byte unique identifier. |
| struct Id { |
| // Construct an Id with the hash of the given memory address. |
| static Id Hash(const void* ptr, uint64_t size); |
| |
| bool operator == (const Id& rhs) const; |
| |
| uint8_t data[20]; |
| }; |
| |
| } // namespace gapic |
| |
| namespace std { |
| template <> struct hash<gapic::Id> { |
| inline size_t operator()(const gapic::Id& id) const { |
| return *reinterpret_cast<const size_t*>(id.data); |
| } |
| }; |
| |
| } // namespace gapic |
| |
| #endif // GAPIC_ID_H |