Jonathan Wheadon
Temp Publish
Diff: dateTime.cpp
- Revision:
- 0:4ccd12e1d789
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/dateTime.cpp Tue Jan 08 16:21:39 2019 +0000
@@ -0,0 +1,312 @@
+/*------------------------------------------------------------------------------
+Creator : Ben Gordon
+Date :
+Module : ELEC351
+Project : ELEC351_GroupA
+Dependencies :
+Purpose :
+------------------------------------------------------------------------------*/
+#include "dateTime.hpp"
+//Constructor
+/*dateTime(PinName GREEN, PinName YELLOW, PinName RED) : _green(GREEN), _yellow(YELLOW), _red(RED) {
+ setDate(); //Sets default date 01/01/1970 00:00:00
+ setTime();
+}*/
+struct tm _addTime_struct;
+struct tm _setTime_struct;
+
+struct tm _updateTime_struct;
+
+DigitalOut _green(PB_11);
+DigitalOut _yellow(PB_10);
+DigitalOut _red(PE_15);
+
+char dateTimeStr[20];
+char dateStr[11];
+char timeStr[9];
+
+////---------------------------SET DATE AND TIME----------------------------////
+BYTE setTime(S_BYTE hours, S_BYTE minutes, S_BYTE seconds)
+{
+ //Get currently set time
+ _setTime_struct = getRawTime();
+
+ //Setting Time
+ _setTime_struct.tm_hour = hours;
+ _setTime_struct.tm_min = minutes;
+ _setTime_struct.tm_sec = seconds;
+
+ return updateSystemTime();
+}
+
+//Setting the date and time
+BYTE setDate(S_BYTE days, S_BYTE months, INT_32 years)
+{
+ //Get currently set time
+ _setTime_struct = getRawTime();
+
+ //Setting Date
+ _setTime_struct.tm_mday = days;
+ _setTime_struct.tm_mon = months -1;
+ _setTime_struct.tm_year = years -1900;
+
+ return updateSystemTime();
+}
+////------------------------------------------------------------------------////
+////////////////////////////////////////////////////////////////////////////////
+////---------------------------ADD DATE AND TIME----------------------------////
+void overFlow(INT_32 *base, INT_32 lower, INT_32 upper)
+{
+ if(*base < lower)
+ {
+ *base = upper;
+ }
+ else if (*base > upper)
+ {
+ *base = lower;
+ }
+}
+
+void addDay(S_BYTE days)
+{
+ struct tm _newTime_struct = _addTime_struct;
+
+ _newTime_struct.tm_mday = _newTime_struct.tm_mday + days;
+
+ overFlow(&_newTime_struct.tm_mday,1,31);
+
+ BYTE error = checkStruct(_newTime_struct);
+
+ if(!(error > 1))
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+void addMonth(S_BYTE months)
+{
+ struct tm _newTime_struct = _addTime_struct;
+
+ _newTime_struct.tm_mon = _newTime_struct.tm_mon + months;
+
+ overFlow(&_newTime_struct.tm_mon,1,12);
+
+ BYTE error = checkStruct(_newTime_struct);
+ if(!(error > 1))
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+void addYear(INT_32 years)
+{
+ struct tm _newTime_struct = _addTime_struct; //Define a structure for the new calculated
+
+ _newTime_struct.tm_year = _newTime_struct.tm_year + years; //Update new time
+
+ overFlow(&_newTime_struct.tm_year,1970,2106);
+
+ BYTE error = checkStruct(_newTime_struct); //Check for errors
+
+ if(!(error > 1)) //If no errors are found, update the time structure
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+void addHour(S_BYTE hours)
+{
+ struct tm _newTime_struct = _addTime_struct;
+
+ _newTime_struct.tm_hour = _newTime_struct.tm_hour + hours;
+
+ overFlow(&_newTime_struct.tm_hour,0,23);
+
+ BYTE error = checkStruct(_newTime_struct);
+ if(!((error > 1)||(_newTime_struct.tm_hour < 0)||(_newTime_struct.tm_hour > 23)))
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+void addMin(S_BYTE minutes)
+{
+ struct tm _newTime_struct = _addTime_struct;
+
+ _newTime_struct.tm_min = _newTime_struct.tm_min + minutes;
+
+ overFlow(&_newTime_struct.tm_min,0,59);
+
+ BYTE error = checkStruct(_newTime_struct);
+ if(!((error > 1)||(_newTime_struct.tm_min < 0)||(_newTime_struct.tm_min > 59)))
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+void addSec(S_BYTE seconds)
+{
+ struct tm _newTime_struct = _addTime_struct;
+
+ _newTime_struct.tm_sec = _newTime_struct.tm_sec + seconds;
+
+ overFlow(&_newTime_struct.tm_sec,0,59);
+
+ BYTE error = checkStruct(_newTime_struct);
+ if(!((error > 1)||(_newTime_struct.tm_sec < 0)||(_newTime_struct.tm_sec > 59)))
+ {
+ _addTime_struct = _newTime_struct;
+ }
+}
+
+BYTE checkStruct(struct tm check)
+{
+ //Initialise LEDs [for debugging]
+ _green = 0;
+ _yellow = 0;
+ _red = 0;
+
+ //Check new set time is within range of valid dates (1970 - 2106)
+ if((check.tm_year < 1970-1900)||(check.tm_year > 2106-1900))
+ {
+ _red = 1;
+ return 2; //ERROR_2 Year outside of valid range [1970 - 2106]
+ }
+
+ //Update structure with correct dates (e.g. 32/10 would become 1/11)
+ struct tm _newTime_struct = check;
+ time_t _newTime_time = mktime(&_newTime_struct);
+ _newTime_struct = *localtime(&_newTime_time);
+
+ //Check structure has remained same (if not, invalid input has been entered (eg 32nd day or 61s minute)
+ if((check.tm_year != _newTime_struct.tm_year)||
+ (check.tm_mon != _newTime_struct.tm_mon )||
+ (check.tm_mday != _newTime_struct.tm_mday)||
+ (check.tm_hour != _newTime_struct.tm_hour)||
+ (check.tm_min != _newTime_struct.tm_min )||
+ (check.tm_sec != _newTime_struct.tm_sec ))
+ {
+ _yellow = 1;
+ printf("YEAR IS %d", _newTime_struct.tm_year);
+ if(_newTime_struct.tm_year < (1970-1900))
+ {
+ _red = 1;
+ return 3; //ERROR_03 Date exceeds maximum range [06/02/2106 06:28:14]
+ }
+
+ return 1; //ERROR_01 Index exceeds max value [e.g Date = 32/31 or Hour = 26/24]
+ }
+ _green = 1;
+ return 0; //ERROR_00 No errors
+}
+////------------------------------------------------------------------------////
+////////////////////////////////////////////////////////////////////////////////
+
+BYTE updateSystemTime()
+{
+ //Checking DateTime remains in valid format
+ BYTE error = checkStruct(_setTime_struct);
+
+ //If no errors are returned, then set the DateTime to set values.
+ if(!error){
+ set_time(mktime(&_setTime_struct));
+ }
+
+ //Return error to be used for terminal display
+ return error;
+}
+
+BYTE confirmDate()
+{
+ BYTE error;
+ error = checkStruct(_addTime_struct);
+
+ if(!error)
+ {
+ mktime(&_addTime_struct);
+ updateSystemTime();
+ }
+ else
+ {
+ while(error)
+ {
+ _addTime_struct.tm_mday = _addTime_struct.tm_mday - 1;
+ error = checkStruct(_addTime_struct);
+ }
+ mktime(&_addTime_struct);
+ return 1;
+ }
+ return 0;
+}
+
+char* getSetDate()
+{
+ return printDate(_addTime_struct);
+}
+
+char* getSetTime()
+{
+ return printTime(_addTime_struct);
+}
+
+char* startEditDate()
+{
+ _addTime_struct = getRawTime();
+ return getSetDate();
+}
+
+char* startEditTime()
+{
+ _addTime_struct = getRawTime();
+ return getSetTime();
+}
+
+void endEdit()
+{
+ set_time(mktime(&_addTime_struct));
+}
+
+char* getSystemDateTime()
+{
+ struct tm _current_time = getRawTime();
+ sprintf(dateTimeStr,"%s %s",printDate(_current_time),printTime(_current_time));
+ return dateTimeStr;
+}
+
+////------------------------------------------------------------------------////
+
+
+struct tm getRawTime()
+{
+ time_t rawTime;
+ time(&rawTime);
+ return *localtime(&rawTime);
+}
+
+//time_t range 0 - 0xFFFFFFFFFFFE [01/01/1970 00:00:00 - 06/02/2106 06:28:14]
+
+char* printDate(struct tm _time_struct)
+{
+ sprintf(dateStr,"%02d/%02d/%4d",
+ getDay(_time_struct),
+ getMonth(_time_struct),
+ getYear(_time_struct));
+ return dateStr;
+}
+
+char* printTime(struct tm _time_struct)
+{
+ sprintf(timeStr,"%02d:%02d:%02d",
+ getHour(_time_struct),
+ getMin(_time_struct),
+ getSec(_time_struct));
+ return timeStr;
+}
+
+signed INT_32 getYear(struct tm _time_struct) {return _time_struct.tm_year + 1900;}
+BYTE getMonth(struct tm _time_struct) {return _time_struct.tm_mon + 1; }
+BYTE getDay(struct tm _time_struct) {return _time_struct.tm_mday; }
+BYTE getHour(struct tm _time_struct) {return _time_struct.tm_hour; }
+BYTE getMin(struct tm _time_struct) {return _time_struct.tm_min; }
+BYTE getSec(struct tm _time_struct) {return _time_struct.tm_sec; }
+