source/time/timedelta.cpp

   1 #include <msp/strings/format.h>
   2 #include "timedelta.h"
   3 #include "units.h"
   4
   5 using namespace std;
   6
   7 namespace {
   8
   9 using Msp::Time::RawTime;
  10
  11 string format_part(RawTime &value, RawTime unit, char sep, bool &first)
  12 {
  13         if(value<unit && first)
  14                 return string();
  15
  16         RawTime v = value/unit;
  17         value %= unit;
  18         if(first)
  19         {
  20                 first = false;
  21                 return Msp::format("%d", v);
  22         }
  23         else
  24                 return Msp::format("%c%02d", sep, v);
  25 }
  26
  27 }
  28
  29 namespace Msp {
  30 namespace Time {
  31
  32 void operator<<(LexicalConverter &conv, const TimeDelta &td)
  33 {
  34         string result;
  35
  36         RawTime value = td.raw();
  37
  38         if(value<0)
  39         {
  40                 result += '-';
  41                 value = -value;
  42         }
  43
  44         if(value==0)
  45                 result += '0';
  46         else if(value<1000)
  47                 result += format("%dµs", value);
  48         else if(value<1000000)
  49         {
  50                 result += format("%d", value/1000);
  51                 value %= 1000;
  52                 if(value)
  53                         result += format(".%03d", value);
  54                 result += "ms";
  55         }
  56         else
  57         {
  58                 bool first = true;
  59                 bool unit = value<60000000LL;
  60                 result += format_part(value, 86400000000LL,  0,  first);
  61                 result += format_part(value, 3600000000LL,  '-', first);
  62                 result += format_part(value, 60000000LL,    ':', first);
  63                 result += format_part(value, 1000000LL,     ':', first);
  64
  65                 if(value)
  66                 {
  67                         if(value%1000)
  68                                 result += format(".%06d", value);
  69                         else
  70                                 result += format(".%03d", value/1000);
  71                 }
  72                 if(unit)
  73                         result += 's';
  74         }
  75
  76         conv.result(result);
  77 }
  78
  79 const TimeDelta zero(0);
  80 const TimeDelta usec(1);
  81 const TimeDelta msec(1000);
  82 const TimeDelta sec(1000000);
  83 const TimeDelta min(60*1000000);
  84 const TimeDelta hour(3600*1000000LL);
  85 const TimeDelta day(86400*1000000LL);
  86 const TimeDelta week(7*86400*1000000LL);
  87
  88 } // namespace Time
  89 } // namespace Msp