478 lines
14 KiB
C++
478 lines
14 KiB
C++
/*
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* DateTimeCore.cpp
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*
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* Created on: 3 March 2017
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* Author: wentzelc
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*/
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// Standard C/C++ Libraries
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#include <sys/time.h>
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#include <stdio.h>
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#include <time.h>
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// redA Libraries
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#include "DateTimeCore.h"
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//---------------------------------------------------------------------------
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// Variable used to temp values with
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static char ReturnStr[30];
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//---------------------------------------------------------------------------
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bool SetTime( unsigned char Hours, unsigned char Minutes, unsigned char Seconds )
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{
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struct tm NewTime;
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struct timeval tv;
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struct timezone tz;
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// Get current Epoch (UTC)
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gettimeofday( &tv, &tz);
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// Convert to local time
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localtime_r( &tv.tv_sec, &NewTime );
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// Set new time (keep date as is)
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NewTime.tm_hour = Hours;
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NewTime.tm_min = Minutes;
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NewTime.tm_sec = Seconds;
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// Convert back from local time to epoch time
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tv.tv_sec = mktime( &NewTime );
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tv.tv_usec = 0;
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// Set date and new time
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settimeofday( &tv, &tz);
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return true;
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}
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//---------------------------------------------------------------------------
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bool SetDate( unsigned char Day, unsigned char Month, unsigned Year )
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{
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struct tm NewDate;
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struct timeval tv;
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struct timezone tz;
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// Get current Epoch (UTC)
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gettimeofday( &tv, &tz );
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// Convert to local time
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localtime_r( &tv.tv_sec, &NewDate );
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// Set new date (keep time as is)
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NewDate.tm_year = Year - 1900;
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NewDate.tm_mon = Month - 1;
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NewDate.tm_mday = Day;
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// Convert back from local time to epoch time
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tv.tv_sec = mktime( &NewDate );
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tv.tv_usec = 0;
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// Set date and new time
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settimeofday( &tv, &tz);
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return true;
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}
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//---------------------------------------------------------------------------
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bool SetDateTime( unsigned char Day, unsigned char Month, unsigned Year,
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unsigned char Hours, unsigned char Minutes, unsigned char Seconds )
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{
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struct tm NewTime;
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struct timeval tv;
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struct timezone tz;
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// Get current Epoch (UTC)
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gettimeofday( &tv, &tz);
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// Convert to local time
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localtime_r( &tv.tv_sec, &NewTime );
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// Set new date & time
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NewTime.tm_year = Year - 1900;
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NewTime.tm_mon = Month - 1;
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NewTime.tm_mday = Day;
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NewTime.tm_hour = Hours;
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NewTime.tm_min = Minutes;
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NewTime.tm_sec = Seconds;
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// Convert back from local time to epoch time
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tv.tv_sec = mktime( &NewTime );
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tv.tv_usec = 0;
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// Set date and new time
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settimeofday( &tv, &tz);
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return true;
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}
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//---------------------------------------------------------------------------
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bool GetTime( unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds )
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{
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struct tm CurrentTime;
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time_t UTC;
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// Get current UTC date and time
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time( &UTC );
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// Convert to local time
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localtime_r( &UTC, &CurrentTime );
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// Extract time only
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Hours = CurrentTime.tm_hour;
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Minutes = CurrentTime.tm_min;
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Seconds = CurrentTime.tm_sec;
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return true;
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}
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//---------------------------------------------------------------------------
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bool GetDate( unsigned char &Day, unsigned char &Month, unsigned &Year )
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{
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struct tm CurrentDate;
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time_t UTC;
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// Get current UTC date and time
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time( &UTC );
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// Convert to local time
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localtime_r( &UTC, &CurrentDate );
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// Extract date only
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Day = CurrentDate.tm_mday;
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Month = CurrentDate.tm_mon + 1;
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Year = CurrentDate.tm_year + 1900;
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return true;
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}
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//---------------------------------------------------------------------------
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bool GetDateTime( unsigned char &Day, unsigned char &Month, unsigned &Year,
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unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds )
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{
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struct tm CurrentTime;
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time_t UTC;
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// Get current UTC date and time
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time( &UTC );
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// Convert to local time
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localtime_r( &UTC, &CurrentTime );
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// Extract Date & time
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Day = CurrentTime.tm_mday;
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Month = CurrentTime.tm_mon + 1;
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Year = CurrentTime.tm_year + 1900;
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Hours = CurrentTime.tm_hour;
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Minutes = CurrentTime.tm_min;
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Seconds = CurrentTime.tm_sec;
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return true;
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}
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//---------------------------------------------------------------------------
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char const * GetDateStr( const char * DateSeparator )
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{
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unsigned char Day;
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unsigned char Month;
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unsigned int Year;
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// Get Date
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GetDate( Day, Month, Year );
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// Build String
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sprintf( ReturnStr, "%04d%s%02d%s%02d",
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Year, ((DateSeparator)? DateSeparator : ""), Month, ((DateSeparator)? DateSeparator : ""), Day );
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// Return value
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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char const * GetTimeStr( const char * TimeSeparator )
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{
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unsigned char Hours;
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unsigned char Minutes;
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unsigned char Seconds;
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// Get Date & Time
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GetTime( Hours, Minutes, Seconds );
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// Build String
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sprintf( ReturnStr, "%02d%s%02d%s%02d",
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Hours, ((TimeSeparator)? TimeSeparator : ""), Minutes, ((TimeSeparator)? TimeSeparator : ""), Seconds );
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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char const * GetDateTimeStr( const char * DateSeparator, const char * TimeSeparator, const char * Separator )
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{
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unsigned char Day;
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unsigned char Month;
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unsigned int Year;
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unsigned char Hours;
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unsigned char Minutes;
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unsigned char Seconds;
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// Get Date & Time
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GetDate( Day, Month, Year );
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GetTime( Hours, Minutes, Seconds );
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// Build String
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sprintf( ReturnStr, "%04d%s%02d%s%02d%s%02d%s%02d%s%02d",
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Year, ((DateSeparator)? DateSeparator : ""), Month, ((DateSeparator)? DateSeparator : ""), Day,
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Separator,
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Hours, ((TimeSeparator)? TimeSeparator : ""), Minutes, ((TimeSeparator)? TimeSeparator : ""), Seconds );
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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// Get current time from real-time clock
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bool ReadTime( const time_t EpochTime, bool LocalTime, unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds )
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{
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struct tm CurrentTime;
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// Get current date and time
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if (LocalTime)
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localtime_r( &EpochTime, &CurrentTime );
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else
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gmtime_r( &EpochTime, &CurrentTime );
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// Extract time
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Hours = CurrentTime.tm_hour;
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Minutes = CurrentTime.tm_min;
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Seconds = CurrentTime.tm_sec;
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return true;
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}
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//---------------------------------------------------------------------------
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bool ReadDate( const time_t EpochTime, bool LocalTime, unsigned char &Day, unsigned char &Month, unsigned &Year )
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{
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struct tm CurrentDate;
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// Get current date and time
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if (LocalTime)
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localtime_r( &EpochTime, &CurrentDate );
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else
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gmtime_r( &EpochTime, &CurrentDate );
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// Extract date
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Day = CurrentDate.tm_mday;
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Month = CurrentDate.tm_mon + 1;
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Year = CurrentDate.tm_year + 1900;
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return true;
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}
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//---------------------------------------------------------------------------
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bool ReadDateTime( const time_t EpochTime, bool LocalTime, unsigned char &Day, unsigned char &Month, unsigned &Year,
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unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds )
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{
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struct tm CurrentTime;
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// Get current date and time
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if (LocalTime)
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localtime_r( &EpochTime, &CurrentTime );
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else
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gmtime_r( &EpochTime, &CurrentTime );
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// Extract time
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Hours = CurrentTime.tm_hour;
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Minutes = CurrentTime.tm_min;
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Seconds = CurrentTime.tm_sec;
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// Extract date
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Day = CurrentTime.tm_mday;
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Month = CurrentTime.tm_mon + 1;
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Year = CurrentTime.tm_year + 1900;
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return true;
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}
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//---------------------------------------------------------------------------
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bool ReadDateTime( const char * DateTimeStr, bool LocalTime, time_t &EpochTime )
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{
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int ItemsAssigned;
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struct tm NewTime;
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// Read time
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ItemsAssigned = sscanf( DateTimeStr, "%d%*[/-]%d%*[/-]%d%*[ ]%d%*[:]%d%*[:]%d",
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&(NewTime.tm_year), &(NewTime.tm_mon), &(NewTime.tm_mday),
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&(NewTime.tm_hour), &(NewTime.tm_min), &(NewTime.tm_sec) );
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if (ItemsAssigned != 6)
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return false;
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// Update time
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NewTime.tm_year -= 1900;
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NewTime.tm_mon -= 1;
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NewTime.tm_zone = "UTC";
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// Convert to Epoch Time
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EpochTime = mktime( &NewTime ) + ((LocalTime)? 0 : NewTime.tm_gmtoff);
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return true;
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}
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//---------------------------------------------------------------------------
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// Read components from date/time string
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bool ReadTimeStr( const char *DateTimeStr, unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds, bool Maxtime )
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{
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int ItemsAssigned;
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int TempDay;
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int TempMonth;
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int TempYear;
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int TempHours = -1;
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int TempMinutes = -1;
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int TempSeconds = -1;
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// Read string
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ItemsAssigned = sscanf( DateTimeStr, "%d%*[/-]%d%*[/-]%d%*[ ]%d%*[:]%d%*[:]%d",
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&TempYear, &TempMonth, &TempDay, &TempHours, &TempMinutes, &TempSeconds );
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// Return Values
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Hours = (TempHours != -1)? TempHours : (Maxtime)? 23 : 0;
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Minutes = (TempMinutes != -1)? TempMinutes : (Maxtime)? 59 : 0;
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Seconds = (TempSeconds != -1)? TempSeconds : (Maxtime)? 59 : 0;
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// Check if success
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return ((ItemsAssigned >= 3)? true : false);
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}
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//---------------------------------------------------------------------------
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bool ReadDateStr( const char *DateTimeStr, unsigned char &Day, unsigned char &Month, unsigned &Year )
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{
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int ItemsAssigned;
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int TempDay;
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int TempMonth;
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int TempYear;
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int TempHours = -1;
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int TempMinutes = -1;
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int TempSeconds = -1;
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// Read string
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ItemsAssigned = sscanf( DateTimeStr, "%d%*[/-]%d%*[/-]%d%*[ ]%d%*[:]%d%*[:]%d",
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&TempYear, &TempMonth, &TempDay, &TempHours, &TempMinutes, &TempSeconds );
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// Return Values
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Day = TempDay;
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Month = TempMonth;
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Year = TempYear;
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// Check if success
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return ((ItemsAssigned >= 3)? true : false);
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}
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//---------------------------------------------------------------------------
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bool ReadDateTimeStr( const char *DateTimeStr, unsigned char &Day, unsigned char &Month, unsigned &Year,
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unsigned char &Hours, unsigned char &Minutes, unsigned char &Seconds, bool Maxtime )
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{
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int ItemsAssigned;
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int TempDay;
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int TempMonth;
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int TempYear;
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int TempHours = -1;
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int TempMinutes = -1;
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int TempSeconds = -1;
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// Read string
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ItemsAssigned = sscanf( DateTimeStr, "%d%*[/-]%d%*[/-]%d%*[ ]%d%*[:]%d%*[:]%d",
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&TempYear, &TempMonth, &TempDay, &TempHours, &TempMinutes, &TempSeconds );
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// Return Values
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Day = TempDay;
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Month = TempMonth;
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Year = TempYear;
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Hours = (TempHours != -1)? TempHours : (Maxtime)? 23 : 0;
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Minutes = (TempMinutes != -1)? TempMinutes : (Maxtime)? 59 : 0;
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Seconds = (TempSeconds != -1)? TempSeconds : (Maxtime)? 59 : 0;
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// Check if success
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return ((ItemsAssigned >= 3)? true : false);
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}
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//---------------------------------------------------------------------------
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char const * BuildDateStr( unsigned char Day, unsigned char Month, unsigned Year, const char * DateSeparator )
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{
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// Build String
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sprintf( ReturnStr, "%04d%s%02d%s%02d",
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Year, ((DateSeparator)? DateSeparator : ""), Month, ((DateSeparator)? DateSeparator : ""), Day );
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// Return value
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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char const * BuildTimeStr( unsigned char Hours, unsigned char Minutes, unsigned char Seconds, const char * TimeSeparator )
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{
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// Build String
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sprintf( ReturnStr, "%02d%s%02d%s%02d",
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Hours, ((TimeSeparator)? TimeSeparator : ""), Minutes, ((TimeSeparator)? TimeSeparator : ""), Seconds );
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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char const * BuildDateTimeStr( unsigned char Day, unsigned char Month, unsigned Year,
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unsigned char Hours, unsigned char Minutes, unsigned char Seconds,
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const char * DateSeparator, const char * TimeSeparator, const char * Separator )
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{
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// Build String
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sprintf( ReturnStr, "%04d%s%02d%s%02d%s%02d%s%02d%s%02d",
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Year, ((DateSeparator)? DateSeparator : ""), Month, ((DateSeparator)? DateSeparator : ""), Day,
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Separator,
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Hours, ((TimeSeparator)? TimeSeparator : ""), Minutes, ((TimeSeparator)? TimeSeparator : ""), Seconds );
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return (ReturnStr);
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}
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//---------------------------------------------------------------------------
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// Get the current date in a string
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char const * BuildDateStr( const time_t EpochTime, bool LocalTime, const char * DateSeparator )
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{
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unsigned char Day;
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unsigned char Month;
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unsigned int Year;
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// Get Date
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ReadDate( EpochTime, LocalTime, Day, Month, Year );
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// Build String
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return BuildDateStr( Day, Month, Year, DateSeparator );
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}
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//---------------------------------------------------------------------------
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char const * BuildTimeStr( const time_t EpochTime, bool LocalTime, const char * TimeSeparator )
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{
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unsigned char Hours;
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unsigned char Minutes;
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unsigned char Seconds;
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// Get Date & Time
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ReadTime( EpochTime, LocalTime, Hours, Minutes, Seconds );
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// Build String
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return BuildTimeStr( Hours, Minutes, Seconds, TimeSeparator );
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}
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//---------------------------------------------------------------------------
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char const * BuildDateTimeStr( const time_t EpochTime, bool LocalTime,
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const char * DateSeparator, const char * TimeSeparator, const char * Separator )
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{
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unsigned char Day;
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unsigned char Month;
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unsigned int Year;
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unsigned char Hours;
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unsigned char Minutes;
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unsigned char Seconds;
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// Get Date & Time
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ReadDateTime( EpochTime, LocalTime, Day, Month, Year, Hours, Minutes, Seconds );
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// Build String
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return BuildDateTimeStr( Day, Month, Year, Hours, Minutes, Seconds, DateSeparator, TimeSeparator );
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}
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