184 lines
3.7 KiB
C++
184 lines
3.7 KiB
C++
#include "Time.h"
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//#include "Timer.h"
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//#include "Platform\stm32.h"
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#define TIME_DEBUG 0
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#define UTC true // utc 从1970/1/1 开始计时
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#define UTC_CALIBRATE 946684800UL // 2000/1/1 - 1970/1/1 秒值
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#ifdef UTC
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#define BASE_YEAR_US 62135596800UL // (63082281600UL-UTC_CALIBRATE) // 从0 到 2000-01-01的所有秒数
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#else
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#define BASE_YEAR_US 63082281600UL // 从0 到 2000-01-01的所有秒数
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#endif
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/************************************************ TTime ************************************************/
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TTime::TTime()
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{
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Seconds = 0;
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Ticks = 0;
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#if defined(STM32F0) || defined(GD32F150)
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Index = 13;
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#else
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Div = 0;
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if(Sys.FlashSize > 0x80)
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Index = 5;
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else
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Index = 2;
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#endif
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BaseSeconds = 0;
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OnInit = nullptr;
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OnLoad = nullptr;
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OnSave = nullptr;
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OnSleep = nullptr;
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}
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void TTime::SetTime(UInt64 seconds)
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{
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if(seconds >= BASE_YEAR_US) seconds -= BASE_YEAR_US;
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BaseSeconds = seconds - Seconds;
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#if DEBUG
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/*DateTime dt(seconds);
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debug_printf("TTime::SetTime 设置时间 ");
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dt.Show(true);*/
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#endif
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// 保存到RTC
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if(OnSave) OnSave();
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}
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#if !defined(TINY) && defined(STM32F0)
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#if defined(__CC_ARM)
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#pragma arm section code = "SectionForSys"
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#elif defined(__GNUC__)
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__attribute__((section("SectionForSys")))
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#endif
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#endif
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void TTime::Sleep(uint ms, bool* running) const
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{
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// 睡眠时间太短
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if(!ms) return;
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// 较大的睡眠时间直接让CPU停下来
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if(OnSleep && ms >= 10)
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{
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uint ms2 = ms;
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if(OnSleep(ms2) == 0)
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{
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// CPU睡眠是秒级，还有剩余量
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if(ms >= ms2)
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ms -= ms2;
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else
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ms = 0;
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}
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}
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// 睡眠时间太短
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if(!ms || (running && !*running)) return;
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uint me = Current() + ms;
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while(true)
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{
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if(Current() >= me) break;
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if(running != nullptr && !*running) break;
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}
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}
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void TTime::Delay(uint us) const
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{
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// 睡眠时间太短
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if(!us) return;
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// 较大的时间，按毫秒休眠
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if(us >= 1000)
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{
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Sleep(us / 1000);
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us %= 1000;
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}
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// 睡眠时间太短
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if(!us) return;
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// 无需关闭中断，也能实现延迟
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UInt64 ms = Current();
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uint ticks = CurrentTicks() + us * Ticks;
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if(ticks >= (1000 - 1) * Ticks)
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{
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ms++;
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ticks -= (1000 - 1) * Ticks;
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}
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while(true)
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{
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int n = Current() - ms;
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if(n > 0) break;
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if(n == 0 && CurrentTicks() >= ticks) break;
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}
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}
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#if !defined(TINY) && defined(STM32F0)
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#if defined(__CC_ARM)
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#pragma arm section code
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#elif defined(__GNUC__)
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__attribute__((section("")))
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#endif
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#endif
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/************************************************ TimeWheel ************************************************/
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TimeWheel::TimeWheel(uint seconds, uint ms, uint us)
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{
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Sleep = 0;
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Reset(seconds, ms, us);
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}
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void TimeWheel::Reset(uint seconds, uint ms, uint us)
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{
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Expire = Time.Current() + seconds * 1000 + ms;
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Expire2 = Time.CurrentTicks() + us * Time.Ticks;
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}
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// 是否已过期
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bool TimeWheel::Expired()
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{
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UInt64 now = Time.Current();
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if(now > Expire) return true;
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if(now == Expire && Time.CurrentTicks() >= Expire2) return true;
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// 睡眠，释放CPU
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if(Sleep) Sys.Sleep(Sleep);
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return false;
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}
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/************************************************ TimeCost ************************************************/
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TimeCost::TimeCost()
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{
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Start = Time.Current();
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StartTicks = Time.CurrentTicks();
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}
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// 逝去的时间，微秒
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int TimeCost::Elapsed()
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{
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short ts = Time.CurrentTicks() - StartTicks;
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int ms = Time.Current() - Start;
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ts /= Time.Ticks;
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if(ts <= 0) ts += 1000;
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return ms * 1000 + ts;
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}
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void TimeCost::Show(cstring format)
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{
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if(!format) format = "执行 %dus\r\n";
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debug_printf(format, Elapsed());
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}
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