1 // @(#)root/base:$Id$
2 // Author: Rene Brun 05/01/95
3
4 /*************************************************************************
5 * Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
6 * All rights reserved. *
7 * *
8 * For the licensing terms see $ROOTSYS/LICENSE. *
9 * For the list of contributors see $ROOTSYS/README/CREDITS. *
10 *************************************************************************/
11
12 #ifndef ROOT_TDatime
13 #define ROOT_TDatime
14
15
16 //////////////////////////////////////////////////////////////////////////
17 // //
18 // TDatime //
19 // //
20 // This class stores the date and time with a precision of one second //
21 // in an unsigned 32 bit word (e.g. 950130 124559). The date is stored //
22 // with the origin being the 1st january 1995. //
23 // //
24 // This class has no support for time zones. The time is assumed //
25 // to be in the local time of the machine where the object was created. //
26 // As a result, TDatime objects are not portable between machines //
27 // operating in different time zones and unsuitable for storing the //
28 // date/time of data taking events and the like. If absolute time is //
29 // required, use TTimeStamp. //
30 // //
31 //////////////////////////////////////////////////////////////////////////
32
33 #ifndef ROOT_Rtypes
34 #include "Rtypes.h"
35 #endif
36
37
38 class TDatime {
39
40 private:
41
42 protected:
43 UInt_t fDatime; //Date (relative to 1995) + time
44
45 public:
46 TDatime();
47 TDatime(const TDatime &d): fDatime(d.fDatime) { }
48 TDatime(UInt_t tloc, Bool_t dosDate = kFALSE): fDatime(0)
49 { Set(tloc, dosDate); }
50 TDatime(Int_t date, Int_t time);
51 TDatime(Int_t year, Int_t month, Int_t day,
52 Int_t hour, Int_t min, Int_t sec);
53 TDatime(const char *sqlDateTime);
54 virtual ~TDatime() { }
55
56 TDatime& operator=(const TDatime &d);
57
58 const char *AsString() const;
59 const char *AsString(char *out) const;
60 const char *AsSQLString() const;
61 UInt_t Convert(Bool_t toGMT = kFALSE) const;
62 void Copy(TDatime &datime) const;
63 UInt_t Get() const;
64 Int_t GetDate() const;
65 Int_t GetTime() const;
66 Int_t GetYear() const { return (fDatime>>26) + 1995; }
67 Int_t GetMonth() const { return (fDatime<<6)>>28; }
68 Int_t GetDay() const { return (fDatime<<10)>>27; }
69 Int_t GetDayOfWeek() const;
70 Int_t GetHour() const { return (fDatime<<15)>>27; }
71 Int_t GetMinute() const { return (fDatime<<20)>>26; }
72 Int_t GetSecond() const { return (fDatime<<26)>>26; }
73 void FillBuffer(char *&buffer);
74 void Print(Option_t *option="") const;
75 void ReadBuffer(char *&buffer);
76 void Set();
77 void Set(UInt_t tloc, Bool_t dosDate = kFALSE);
78 void Set(Int_t date, Int_t time);
79 void Set(Int_t year, Int_t month, Int_t day,
80 Int_t hour, Int_t min, Int_t sec);
81 void Set(const char *sqlDateTime);
82 Int_t Sizeof() const {return sizeof(UInt_t);}
83
84 friend Bool_t operator==(const TDatime &d1, const TDatime &d2);
85 friend Bool_t operator!=(const TDatime &d1, const TDatime &d2);
86 friend Bool_t operator< (const TDatime &d1, const TDatime &d2);
87 friend Bool_t operator<=(const TDatime &d1, const TDatime &d2);
88 friend Bool_t operator> (const TDatime &d1, const TDatime &d2);
89 friend Bool_t operator>=(const TDatime &d1, const TDatime &d2);
90
91 static void GetDateTime(UInt_t datetime, Int_t &date, Int_t &time);
92
93 ClassDef(TDatime,1) //Date and time 950130 124559
94 };
95
96
97 inline TDatime& TDatime::operator=(const TDatime &d)
98 { fDatime = d.fDatime; return *this; }
99
100 inline Bool_t operator==(const TDatime &d1, const TDatime &d2)
101 { return d1.fDatime == d2.fDatime; }
102 inline Bool_t operator!=(const TDatime &d1, const TDatime &d2)
103 { return d1.fDatime != d2.fDatime; }
104 inline Bool_t operator< (const TDatime &d1, const TDatime &d2)
105 { return d1.fDatime < d2.fDatime; }
106 inline Bool_t operator<=(const TDatime &d1, const TDatime &d2)
107 { return d1.fDatime <= d2.fDatime; }
108 inline Bool_t operator> (const TDatime &d1, const TDatime &d2)
109 { return d1.fDatime > d2.fDatime; }
110 inline Bool_t operator>=(const TDatime &d1, const TDatime &d2)
111 { return d1.fDatime >= d2.fDatime; }
112
113 #endif
114