1/* 2 * Copyright (C) 2016 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#include "chre/platform/system_time.h" 18 19#include <cerrno> 20#include <cstring> 21#include <ctime> 22 23#include "chre/platform/assert.h" 24#include "chre/platform/log.h" 25 26namespace chre { 27 28Nanoseconds SystemTime::getMonotonicTime() { 29 struct timespec timeNow; 30 if (clock_gettime(CLOCK_MONOTONIC, &timeNow)) { 31 CHRE_ASSERT_LOG(false, "Failed to obtain time with error: %s", 32 strerror(errno)); 33 return Nanoseconds(UINT64_MAX); 34 } 35 36 return Seconds(timeNow.tv_sec) + Nanoseconds(timeNow.tv_nsec); 37} 38 39} // namespace chre 40