| /* |
| * Copyright (C) 2016 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 CHRE_PLATFORM_TIME_H_ |
| #define CHRE_PLATFORM_TIME_H_ |
| |
| #include <cstdint> |
| |
| #include "chre/util/time.h" |
| |
| namespace chre { |
| |
| class SystemTime { |
| public: |
| /** |
| * Initializes the system clock. This must be called as part of the |
| * initialization of the runtime. |
| */ |
| static void init(); |
| |
| /** |
| * Obtains a monotonic time reference relative to an arbitrary starting point. |
| * There is no mandate that getMonotonicTime and getUptime be different. |
| * |
| * @return The time of the system. |
| */ |
| static Nanoseconds getMonotonicTime(); |
| |
| /** |
| * Obtains the uptime of CHRE relative to CHRE initialization. There is no |
| * mandate that getUptime and getMonotonicTime be different. |
| * |
| * @return The uptime of CHRE. |
| */ |
| static Nanoseconds getUptime(); |
| }; |
| |
| } // namespace chre |
| |
| #endif // CHRE_PLATFORM_TIME_H_ |