| // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef SHILL_SHILL_TIME_H_ |
| #define SHILL_SHILL_TIME_H_ |
| |
| #include <sys/time.h> |
| #include <time.h> |
| |
| #include <string> |
| |
| #include <base/lazy_instance.h> |
| |
| namespace shill { |
| |
| // Timestamp encapsulates a |monotonic| and a |boottime| clock that can be used |
| // to compare the relative order and distance of events as well as a |
| // |wall_clock| time that can be used for presenting the time in human-readable |
| // format. Note that the monotonic clock does not necessarily advance during |
| // suspend, while boottime clock does include any time that the system is |
| // suspended. |
| struct Timestamp { |
| Timestamp() : monotonic{} {} |
| Timestamp(const struct timeval &in_monotonic, |
| const struct timeval &in_boottime, |
| const std::string &in_wall_clock) |
| : monotonic(in_monotonic), |
| boottime(in_boottime), |
| wall_clock(in_wall_clock) {} |
| |
| struct timeval monotonic; |
| struct timeval boottime; |
| std::string wall_clock; |
| }; |
| |
| // A "sys/time.h" abstraction allowing mocking in tests. |
| class Time { |
| public: |
| virtual ~Time(); |
| |
| static Time *GetInstance(); |
| |
| // Returns CLOCK_MONOTONIC time, or 0 if a failure occurred. |
| virtual bool GetSecondsMonotonic(time_t *seconds); |
| |
| // Returns CLOCK_BOOTTIME time, or 0 if a failure occurred. |
| virtual bool GetSecondsBoottime(time_t *seconds); |
| |
| // On success, sets |tv| to CLOCK_MONOTONIC time, and returns 0. |
| virtual int GetTimeMonotonic(struct timeval *tv); |
| |
| // On success, sets |tv| to CLOCK_BOOTTIME time, and returns 0. |
| virtual int GetTimeBoottime(struct timeval *tv); |
| |
| // gettimeofday |
| virtual int GetTimeOfDay(struct timeval *tv, struct timezone *tz); |
| |
| // Returns a snapshot of the current time. |
| virtual Timestamp GetNow(); |
| |
| virtual time_t GetSecondsSinceEpoch() const; |
| |
| static std::string FormatTime(const struct tm &date_time, suseconds_t usec); |
| |
| protected: |
| Time(); |
| |
| private: |
| friend struct base::DefaultLazyInstanceTraits<Time>; |
| |
| DISALLOW_COPY_AND_ASSIGN(Time); |
| }; |
| |
| } // namespace shill |
| |
| #endif // SHILL_SHILL_TIME_H_ |