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NptTime.h
1 /*****************************************************************
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3 | Neptune - Time
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31 
32 #ifndef _NPT_TIME_H_
33 #define _NPT_TIME_H_
34 
35 /*----------------------------------------------------------------------
36 | includes
37 +---------------------------------------------------------------------*/
38 #include "NptTypes.h"
39 #include "NptStrings.h"
40 
41 /*----------------------------------------------------------------------
42 | constants
43 +---------------------------------------------------------------------*/
44 #define NPT_DATETIME_YEAR_MIN 1901
45 #define NPT_DATETIME_YEAR_MAX 2262
46 
47 /*----------------------------------------------------------------------
48 | NPT_TimeStamp
49 +---------------------------------------------------------------------*/
50 class NPT_TimeStamp
51 {
52  public:
53  // methods
54  NPT_TimeStamp(const NPT_TimeStamp& timestamp);
55  NPT_TimeStamp() : m_NanoSeconds(0) {}
56  NPT_TimeStamp(NPT_Int64 nanoseconds) : m_NanoSeconds(nanoseconds) {}
57  NPT_TimeStamp(double seconds);
58  NPT_TimeStamp& operator+=(const NPT_TimeStamp& time_stamp);
59  NPT_TimeStamp& operator-=(const NPT_TimeStamp& time_stamp);
60  bool operator==(const NPT_TimeStamp& t) const { return m_NanoSeconds == t.m_NanoSeconds; }
61  bool operator!=(const NPT_TimeStamp& t) const { return m_NanoSeconds != t.m_NanoSeconds; }
62  bool operator> (const NPT_TimeStamp& t) const { return m_NanoSeconds > t.m_NanoSeconds; }
63  bool operator< (const NPT_TimeStamp& t) const { return m_NanoSeconds < t.m_NanoSeconds; }
64  bool operator>=(const NPT_TimeStamp& t) const { return m_NanoSeconds >= t.m_NanoSeconds; }
65  bool operator<=(const NPT_TimeStamp& t) const { return m_NanoSeconds <= t.m_NanoSeconds; }
66 
67  // accessors
68  void SetNanos(NPT_Int64 nanoseconds) { m_NanoSeconds = nanoseconds; }
69  void SetMicros(NPT_Int64 micros) { m_NanoSeconds = micros * 1000; }
70  void SetMillis(NPT_Int64 millis) { m_NanoSeconds = millis * 1000000; }
71  void SetSeconds(NPT_Int64 seconds) { m_NanoSeconds = seconds * 1000000000; }
72 
73  // conversion
74  operator double() const { return (double)m_NanoSeconds/1E9; }
75  void FromNanos(NPT_Int64 nanoseconds) { m_NanoSeconds = nanoseconds; }
76  NPT_Int64 ToNanos() const { return m_NanoSeconds; }
77  NPT_Int64 ToMicros() const { return m_NanoSeconds/1000; }
78  NPT_Int64 ToMillis() const { return m_NanoSeconds/1000000; }
79  NPT_Int64 ToSeconds() const { return m_NanoSeconds/1000000000; }
80 
81 private:
82  // members
83  NPT_Int64 m_NanoSeconds;
84 };
85 
86 /*----------------------------------------------------------------------
87 | operator+
88 +---------------------------------------------------------------------*/
89 inline
90 NPT_TimeStamp
91 operator+(const NPT_TimeStamp& t1, const NPT_TimeStamp& t2)
92 {
93  NPT_TimeStamp t = t1;
94  return t += t2;
95 }
96 
97 /*----------------------------------------------------------------------
98 | operator-
99 +---------------------------------------------------------------------*/
100 inline
101 NPT_TimeStamp
102 operator-(const NPT_TimeStamp& t1, const NPT_TimeStamp& t2)
103 {
104  NPT_TimeStamp t = t1;
105  return t -= t2;
106 }
107 
108 /*----------------------------------------------------------------------
109 | NPT_TimeInterval
110 +---------------------------------------------------------------------*/
111 typedef NPT_TimeStamp NPT_TimeInterval;
112 
113 /*----------------------------------------------------------------------
114 | NPT_DateTime
115 +---------------------------------------------------------------------*/
116 class NPT_DateTime {
117 public:
118  // types
119  enum Format {
120  FORMAT_ANSI,
121  FORMAT_W3C,
122  FORMAT_RFC_1123, // RFC 822 updated by RFC 1123
123  FORMAT_RFC_1036 // RFC 850 updated by RFC 1036
124  };
125 
126  enum FormatFlags {
127  FLAG_EMIT_FRACTION = 1,
128  FLAG_EXTENDED_PRECISION = 2
129  };
130 
131  // class methods
132  NPT_Int32 GetLocalTimeZone();
133 
134  // constructors
135  NPT_DateTime();
136  NPT_DateTime(const NPT_TimeStamp& timestamp, bool local=false);
137 
138  // methods
139  NPT_Result ChangeTimeZone(NPT_Int32 timezone);
140  NPT_Result FromTimeStamp(const NPT_TimeStamp& timestamp, bool local=false);
141  NPT_Result ToTimeStamp(NPT_TimeStamp& timestamp) const;
142  NPT_Result FromString(const char* date, Format format = FORMAT_ANSI);
143  NPT_String ToString(Format format = FORMAT_ANSI, NPT_Flags flags=0) const;
144 
145  // members
146  NPT_Int32 m_Year; // year
147  NPT_Int32 m_Month; // month of the year (1-12)
148  NPT_Int32 m_Day; // day of the month (1-31)
149  NPT_Int32 m_Hours; // hours (0-23)
150  NPT_Int32 m_Minutes; // minutes (0-59)
151  NPT_Int32 m_Seconds; // seconds (0-59)
152  NPT_Int32 m_NanoSeconds; // nanoseconds (0-999999999)
153  NPT_Int32 m_TimeZone; // minutes offset from GMT
154 };
155 
156 #endif // _NPT_TIME_H_
NPT_TimeStamp
Definition: NptTime.h:50
NPT_DateTime
Definition: NptTime.h:116
NPT_String
Definition: NptStrings.h:57
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