diff options
Diffstat (limited to 'src/basic/time-util.h')
| -rw-r--r-- | src/basic/time-util.h | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/src/basic/time-util.h b/src/basic/time-util.h index 558b0b5b7f..7463507f51 100644 --- a/src/basic/time-util.h +++ b/src/basic/time-util.h @@ -29,8 +29,10 @@ typedef uint64_t usec_t; typedef uint64_t nsec_t; -#define NSEC_FMT "%" PRIu64 -#define USEC_FMT "%" PRIu64 +#define PRI_NSEC PRIu64 +#define PRI_USEC PRIu64 +#define NSEC_FMT "%" PRI_NSEC +#define USEC_FMT "%" PRI_USEC #include "macro.h" @@ -179,3 +181,14 @@ static inline usec_t usec_sub(usec_t timestamp, int64_t delta) { return timestamp - delta; } + +#if SIZEOF_TIME_T == 8 +/* The last second we can format is 31. Dec 9999, 1s before midnight, because otherwise we'd enter 5 digit year + * territory. However, since we want to stay away from this in all timezones we take one day off. */ +#define USEC_TIMESTAMP_FORMATTABLE_MAX ((usec_t) 253402214399000000) +#elif SIZEOF_TIME_T == 4 +/* With a 32bit time_t we can't go beyond 2038... */ +#define USEC_TIMESTAMP_FORMATTABLE_MAX ((usec_t) 2147483647000000) +#else +#error "Yuck, time_t is neither 4 not 8 bytes wide?" +#endif |