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date time from unix time stamp

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This commit is contained in:
Nikita Smith
2024-12-06 11:47:49 -08:00
parent 9ad63e45e6
commit 746a2728b3
2 changed files with 56 additions and 2 deletions
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src/base/base_core.c
+53
View File
@@ -514,6 +514,59 @@ date_time_from_micro_seconds(U64 time){
return(result);
}
internal DateTime
date_time_from_unix_time(U64 unix_time)
{
DateTime date = {0};
date.year = 1970;
date.day = 1 + (unix_time / 86400);
date.sec = (U32)unix_time % 60;
date.min = (U32)(unix_time / 60) % 60;
date.hour = (U32)(unix_time / 3600) % 24;
for(;;)
{
for(date.month = 0; date.month <= 12; ++date.month)
{
U64 c = 0;
switch(date.month)
{
case Month_Jan: c = 31; break;
case Month_Feb:
{
if((date.year % 4 == 0) && ((date.year % 100) != 0 || (date.year % 400) == 0))
{
c = 29;
}
else
{
c = 28;
}
} break;
case Month_Mar: c = 31; break;
case Month_Apr: c = 30; break;
case Month_May: c = 31; break;
case Month_Jun: c = 30; break;
case Month_Jul: c = 31; break;
case Month_Aug: c = 31; break;
case Month_Sep: c = 30; break;
case Month_Oct: c = 31; break;
case Month_Nov: c = 30; break;
case Month_Dec: c = 31; break;
}
if(date.day <= c)
{
goto exit;
}
date.day -= c;
}
++date.year;
}
exit:;
return date;
}
////////////////////////////////
//~ rjf: Non-Fancy Ring Buffer Reads/Writes
src/base/base_core.h
+3 -2
View File
@@ -821,8 +821,9 @@ internal Compiler compiler_from_context(void);
//~ rjf: Time Functions
internal DenseTime dense_time_from_date_time(DateTime date_time);
internal DateTime date_time_from_dense_time(DenseTime time);
internal DateTime date_time_from_micro_seconds(U64 time);
internal DateTime date_time_from_dense_time(DenseTime time);
internal DateTime date_time_from_micro_seconds(U64 time);
internal DateTime date_time_from_unix_time(U64 unix_time);
////////////////////////////////
//~ rjf: Non-Fancy Ring Buffer Reads/Writes