99 lines
1.8 KiB
C
99 lines
1.8 KiB
C
|
#include <stdio.h>
|
||
|
#include <string.h>
|
||
|
#include <time.h>
|
||
|
#include "postgres.h"
|
||
|
#include "utils/builtins.h"
|
||
|
|
||
|
int4
|
||
|
timestamp_in(char *timestamp_str)
|
||
|
{
|
||
|
struct tm input_time;
|
||
|
int4 result;
|
||
|
|
||
|
memset(&input_time, 0, sizeof(input_time));
|
||
|
if(sscanf(timestamp_str, "%d%*c%d%*c%d%*c%d%*c%d%*c%d",
|
||
|
&input_time.tm_year, &input_time.tm_mon, &input_time.tm_mday,
|
||
|
&input_time.tm_hour, &input_time.tm_min, &input_time.tm_sec) != 6) {
|
||
|
elog(WARN, "timestamp_in: timestamp \"%s\" not of the form yyyy-mm-dd hh:mm:ss",
|
||
|
timestamp_str);
|
||
|
}
|
||
|
|
||
|
/* range checking? bahahahaha.... */
|
||
|
|
||
|
input_time.tm_year -= 1900;
|
||
|
input_time.tm_mon -= 1;
|
||
|
|
||
|
/* use mktime(), but make this GMT, not local time */
|
||
|
result = mktime(&input_time);
|
||
|
result -= timezone;
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
char *
|
||
|
timestamp_out(int4 timestamp)
|
||
|
{
|
||
|
char *result;
|
||
|
struct tm *time;
|
||
|
|
||
|
time = gmtime((time_t *)×tamp);
|
||
|
result = palloc(20);
|
||
|
sprintf(result, "%04d-%02d-%02d %02d:%02d:%02d",
|
||
|
time->tm_year+1900, time->tm_mon+1, time->tm_mday,
|
||
|
time->tm_hour, time->tm_min, time->tm_sec);
|
||
|
|
||
|
return result;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
now(void)
|
||
|
{
|
||
|
struct tm ignore;
|
||
|
time_t sec;
|
||
|
|
||
|
/* we want the local time here. but 'timezone' doesn't get set */
|
||
|
/* until we do a mktime(). so do one. */
|
||
|
memset(&ignore, 0, sizeof(ignore));
|
||
|
mktime(&ignore);
|
||
|
|
||
|
time(&sec);
|
||
|
sec -= timezone;
|
||
|
return((int4)sec);
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestampeq(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 == t2;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestampne(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 != t2;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestamplt(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 < t2;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestampgt(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 > t2;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestample(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 <= t2;
|
||
|
}
|
||
|
|
||
|
int4
|
||
|
timestampge(int4 t1, int4 t2)
|
||
|
{
|
||
|
return t1 >= t2;
|
||
|
}
|