source/time/timedelta.cpp

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