| // Copyright 2014 The Crashpad Authors. All rights reserved. |
| // |
| // 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. |
| |
| #include "util/misc/clock.h" |
| |
| #include <mach/mach_time.h> |
| |
| #include "base/mac/mach_logging.h" |
| |
| namespace { |
| |
| mach_timebase_info_data_t* TimebaseInternal() { |
| mach_timebase_info_data_t* timebase_info = new mach_timebase_info_data_t; |
| kern_return_t kr = mach_timebase_info(timebase_info); |
| MACH_CHECK(kr == KERN_SUCCESS, kr) << "mach_timebase_info"; |
| return timebase_info; |
| } |
| |
| mach_timebase_info_data_t* Timebase() { |
| static mach_timebase_info_data_t* timebase_info = TimebaseInternal(); |
| return timebase_info; |
| } |
| |
| } // namespace |
| |
| namespace crashpad { |
| |
| uint64_t ClockMonotonicNanoseconds() { |
| uint64_t absolute_time = mach_absolute_time(); |
| mach_timebase_info_data_t* timebase_info = Timebase(); |
| return absolute_time * timebase_info->numer / timebase_info->denom; |
| } |
| |
| } // namespace crashpad |
