Defines: CTimeFormat - storage class for time format. More...
#include <corelib/ncbistd.hpp>
Include dependency graph for ncbitime.hpp:
Go to the source code of this file.
Go to the SVN repository for this file.
Classes | |
| struct | TDBTimeU |
| Database format for time where day and time is unsigned 16 bit. More... | |
| struct | TDBTimeI |
| Database format for time where day and time is signed 32 bit. More... | |
| class | CTimeFormat |
| CTimeFormat –. More... | |
| class | CTime |
| CTime –. More... | |
| struct | CTime::TData |
| class | CCurrentTime |
| CCurrentTime –. More... | |
| class | CTimeSpan |
| CTimeSpan. More... | |
| class | CTimeout |
| CTimeout – Timeout interval. More... | |
| class | CNanoTimeout |
| CNanoTimeout – Timeout interval, using nanoseconds. More... | |
| class | CDeadline |
| CDeadline. More... | |
| class | CFastLocalTime |
| CFastLocalTime –. More... | |
| class | CStopWatch |
| CStopWatch –. More... | |
| class | CTimeException |
| CTimeException –. More... | |
Macros | |
| #define | NCBI_TIME_BITFIELD(n) : n |
| #define | NCBI_TIME_EMPTY_BITFIELD unsigned : 0; |
Typedefs | |
| typedef Int8 | TSeconds |
| Number of seconds. More... | |
| typedef struct TDBTimeU * | TDBTimeUPtr |
| typedef struct TDBTimeI * | TDBTimeIPtr |
| typedef CDeadline | CAbsTimeout |
Functions | |
| CTime | GetFastLocalTime (void) |
| Quick and dirty getter of local time. More... | |
| void | TuneupFastLocalTime (void) |
| CTime | AddYear (const CTime &t, int years=1) |
| CTime | AddMonth (const CTime &t, int months=1) |
| CTime | AddDay (const CTime &t, int days=1) |
| CTime | AddHour (const CTime &t, int hours=1) |
| CTime | AddMinute (const CTime &t, int minutes=1) |
| CTime | AddSecond (const CTime &t, long seconds=1) |
| CTime | AddNanoSecond (const CTime &t, long nanoseconds=1) |
| CTime | operator+ (const CTimeSpan &ts, const CTime &t) |
| CTime | CurrentTime (CTime::ETimeZone tz=CTime::eLocal, CTime::ETimeZonePrecision tzp=CTime::eTZPrecisionDefault) |
| CTime | Truncate (const CTime &t) |
| ostream & | operator<< (ostream &os, const CStopWatch &sw) |
| Dumps the current stopwatch time to an output stream. More... | |
| ostream & | operator<< (ostream &os, const CTime &t) |
| Dumps the current CTime time to an output stream. More... | |
Variables | |
| const long | kNanoSecondsPerSecond = 1000000000 |
| Number of nanoseconds in one second. More... | |
| const long | kMicroSecondsPerSecond = 1000000 |
| Number of microseconds in one second. More... | |
| const long | kMilliSecondsPerSecond = 1000 |
| Number milliseconds in one second. More... | |
| const double | kAverageDaysPerYear = 365.2425 |
| The average length of the year in the Gregorian (modern) calendar (in days) More... | |
| const TSeconds | kAverageSecondsPerYear = 31556952 |
| The average length of the year in the Gregorian (modern) calendar (in seconds) More... | |
| const TSeconds | kAverageSecondsPerMonth = kAverageSecondsPerYear/12 |
Detailed Description
Defines: CTimeFormat - storage class for time format.
CTime - standard Date/Time class to represent an absolute time. CTimeSpan - class to represents a relative time span. CStopWatch - stop watch class to measure elapsed time. CTimeout - timeout interval for various I/O etc activity. CNanoTimeout - timeout interval with nanoseconds precision. CDeadline - timeout that use absolute time mark (deadline time). CFastLocalTime - class for quick and dirty getting a local time.
NOTE(s) about CTime and Time API:
1) CTime works with Gregorian calendar dates only (with some cut-off). Earlier valid date is January 1, 1583.
2) Do not use local time and time_t and its dependent functions with dates outside the range January 1, 1970 UTC to January 18, 2038 UTC. Also avoid to use universal->local time conversion functions.
3) On Windows-based computers the time zone database usually stores a single start and end rule for each zone only, regardless of year. One of the problems of this approach is that using time-zone information for some year in past will get incorrect results, if time zone rules changes since then. This affect local time only, any calculations with UTC time should be fine.
4) Do not use DataBase conversion functions for dates prior to January 1, 1900.
Definition in file ncbitime.hpp.
