目录

Time

Duration

Rate

Timer

Time

time是一个用来管理时间的类；可用于当前时间获取、耗时计算、时间转换等。

static const Time MAX;
static const Time MIN;
Time() {}
explicit Time(uint64_t nanoseconds);
explicit Time(int nanoseconds);
explicit Time(double seconds);
Time(uint32_t seconds, uint32_t nanoseconds);
Time(const Time& other);
static Time Now();
static Time MonoTime();
static void SleepUntil(const Time& time);
double ToSecond() const;
uint64_t ToNanosecond() const;
std::string ToString() const;
bool IsZero() const;

Duration

持续时间相关接口，用于表示时间间隔，可以按照指定的纳秒或者秒进行初始化。

Duration() {}
Duration(int64_t nanoseconds);
Duration(int nanoseconds);
Duration(double seconds);
Duration(uint32_t seconds, uint32_t nanoseconds);
Duration(const Rate& rate);
Duration(const Duration& other);
double ToSecond() const;
int64_t ToNanosecond() const;
bool IsZero() const;
void Sleep() const;

Rate

频率接口一般用于休眠操作(会自动将频率换算成休眠时间)。

Rate(double frequency);
Rate(uint64_t nanoseconds);
Rate(const Duration&);
void Sleep();
void Reset();
Duration CycleTime() const;
Duration ExpectedCycleTime() const { return expected_cycle_time_; }

Timer

定时器可用于创建定时任务以周期性的运行，或只运行一次

Timer(uint32_t period, std::function callback, bool oneshot);
Timer(TimerOption opt);
void SetTimerOption(TimerOption opt);
void Start();
void Stop();