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Changed datetime add minutes to allow adding or subtracting minutes. Corrected it to not zero the seconds upon conversion.

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This commit is contained in:
skarg
2012-08-30 01:42:03 +00:00
parent d3c63ad4c4
commit 550cfb3fb9
2 changed files with 12 additions and 7 deletions
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bacnet-stack/include/datetime.h
+1 -1
View File
@@ -116,7 +116,7 @@ extern "C" {
/* utility add function */ /* utility add function */
void datetime_add_minutes( void datetime_add_minutes(
BACNET_DATE_TIME * bdatetime, BACNET_DATE_TIME * bdatetime,
uint32_t minutes); int32_t minutes);
/* date and time wildcards */ /* date and time wildcards */
bool datetime_wildcard( bool datetime_wildcard(
bacnet-stack/src/datetime.c
+8 -3
View File
@@ -349,13 +349,18 @@ static void seconds_since_midnight_into_hms(
*pSeconds = (uint8_t) seconds; *pSeconds = (uint8_t) seconds;
} }
/** Utility to add or subtract minutes to a BACnet DateTime structure
*
* @param bdatetime [in] the starting date and time
* @param minutes [in] number of minutes to add or subtract from the time
*/
void datetime_add_minutes( void datetime_add_minutes(
BACNET_DATE_TIME * bdatetime, BACNET_DATE_TIME * bdatetime,
uint32_t minutes) int32_t minutes)
{ {
uint32_t bdatetime_minutes = 0; uint32_t bdatetime_minutes = 0;
uint32_t bdatetime_days = 0; uint32_t bdatetime_days = 0;
uint32_t days = 0; int32_t days = 0;
/* convert bdatetime to seconds and days */ /* convert bdatetime to seconds and days */
bdatetime_minutes = bdatetime_minutes =
@@ -375,7 +380,7 @@ void datetime_add_minutes(
/* convert bdatetime from seconds and days */ /* convert bdatetime from seconds and days */
seconds_since_midnight_into_hms(bdatetime_minutes * 60, seconds_since_midnight_into_hms(bdatetime_minutes * 60,
&bdatetime->time.hour, &bdatetime->time.min, &bdatetime->time.sec); &bdatetime->time.hour, &bdatetime->time.min, NULL);
days_since_epoch_into_ymd(bdatetime_days, &bdatetime->date.year, days_since_epoch_into_ymd(bdatetime_days, &bdatetime->date.year,
&bdatetime->date.month, &bdatetime->date.day); &bdatetime->date.month, &bdatetime->date.day);
bdatetime->date.wday = bdatetime->date.wday =