diff options
Diffstat (limited to 'src/backend/utils/adt/timestamp.c')
| -rw-r--r-- | src/backend/utils/adt/timestamp.c | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/src/backend/utils/adt/timestamp.c b/src/backend/utils/adt/timestamp.c index e9d1efe3ed1..2a83ae96b2a 100644 --- a/src/backend/utils/adt/timestamp.c +++ b/src/backend/utils/adt/timestamp.c @@ -8,7 +8,7 @@ * * * IDENTIFICATION - * $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.174 2007/02/27 23:48:09 tgl Exp $ + * $PostgreSQL: pgsql/src/backend/utils/adt/timestamp.c,v 1.175 2007/04/30 03:23:49 tgl Exp $ * *------------------------------------------------------------------------- */ @@ -1239,6 +1239,27 @@ TimestampDifference(TimestampTz start_time, TimestampTz stop_time, } /* + * TimestampDifferenceExceeds -- report whether the difference between two + * timestamps is >= a threshold (expressed in milliseconds) + * + * Both inputs must be ordinary finite timestamps (in current usage, + * they'll be results from GetCurrentTimestamp()). + */ +bool +TimestampDifferenceExceeds(TimestampTz start_time, + TimestampTz stop_time, + int msec) +{ + TimestampTz diff = stop_time - start_time; + +#ifdef HAVE_INT64_TIMESTAMP + return (diff >= msec * INT64CONST(1000)); +#else + return (diff * 1000.0 >= msec); +#endif +} + +/* * Convert a time_t to TimestampTz. * * We do not use time_t internally in Postgres, but this is provided for use |