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Implement assignment by subtraction for time classes

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This commit is contained in:
Vikram Rajkumar 2014-05-16 22:29:46 -04:00
parent 7ca061fb03
commit cde67a202c
1 changed files with 9 additions and 6 deletions
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15
include/fc/time.hpp
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@ -9,7 +9,7 @@
#endif //// _MSC_VER
namespace fc {
class microseconds {
class microseconds {
public:
explicit microseconds( int64_t c = 0) :_count(c){}
static microseconds maximum() { return microseconds(0x7fffffffffffffffll); }
@ -23,10 +23,11 @@ namespace fc {
friend bool operator<(const microseconds& a, const microseconds& b){ return a._count < b._count; }
friend bool operator<=(const microseconds& a, const microseconds& b){ return a._count <= b._count; }
microseconds& operator+=(const microseconds& c) { _count += c._count; return *this; }
microseconds& operator-=(const microseconds& c) { _count -= c._count; return *this; }
int64_t count()const { return _count; }
private:
friend class time_point;
int64_t _count;
int64_t _count;
};
inline microseconds seconds( int64_t s ) { return microseconds( s * 1000000 ); }
inline microseconds milliseconds( int64_t s ) { return microseconds( s * 1000 ); }
@ -34,14 +35,14 @@ namespace fc {
inline microseconds hours(int64_t h) { return minutes(60*h); }
inline microseconds days(int64_t d) { return hours(24*d); }
class time_point {
class time_point {
public:
explicit time_point( microseconds e = microseconds() ) :elapsed(e){}
static time_point now();
static time_point maximum() { return time_point( microseconds::maximum() ); }
static time_point min() { return time_point(); }
operator fc::string()const;
static time_point from_iso_string( const fc::string& s );
const microseconds& time_since_epoch()const { return elapsed; }
@ -53,17 +54,18 @@ namespace fc {
bool operator ==( const time_point& t )const { return elapsed._count ==t.elapsed._count; }
bool operator !=( const time_point& t )const { return elapsed._count !=t.elapsed._count; }
time_point& operator += ( const microseconds& m) { elapsed+=m; return *this; }
time_point& operator -= ( const microseconds& m) { elapsed-=m; return *this; }
time_point operator + (const microseconds& m) const { return time_point(elapsed+m); }
time_point operator - (const microseconds& m) const { return time_point(elapsed-m); }
microseconds operator - (const time_point& m) const { return microseconds(elapsed.count() - m.elapsed.count()); }
private:
microseconds elapsed;
microseconds elapsed;
};
/**
* A lower resolution time_point accurate only to seconds from 1970
*/
class time_point_sec
class time_point_sec
{
public:
time_point_sec()
@ -90,6 +92,7 @@ namespace fc {
friend bool operator == ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds == b.utc_seconds; }
friend bool operator != ( const time_point_sec& a, const time_point_sec& b ) { return a.utc_seconds != b.utc_seconds; }
time_point_sec& operator += ( uint32_t m ) { utc_seconds+=m; return *this; }
time_point_sec& operator -= ( uint32_t m ) { utc_seconds-=m; return *this; }
friend time_point operator - ( const time_point_sec& t, const microseconds& m ) { return time_point(t) - m; }
friend microseconds operator - ( const time_point_sec& t, const time_point_sec& m ) { return time_point(t) - time_point(m); }