diff options
| -rw-r--r-- | include/time.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/time.h b/include/time.h index e5e8246eac..dbf6b7008a 100644 --- a/include/time.h +++ b/include/time.h @@ -310,6 +310,43 @@ valid_timespec64_to_timeval (const struct __timespec64 ts64) return tv; } +/* A version of 'struct timeval' with `long` time_t + and suseconds_t. */ +struct __timeval_long +{ + long tv_sec; /* Seconds. */ + long tv_usec; /* Microseconds. */ +}; + +/* Conversion functions for converting to/from __timeval_long +. If the seconds field of a __timeval_long would + overflow, they write { INT32_MAX, 999999 } to the output. */ +static inline struct timeval +valid_timeval_long_to_timeval64 (const struct __timeval_long tv) +{ + return (struct timeval) { tv.tv_sec, tv.tv_usec }; +} + +static inline struct __timeval_long +valid_timeval64_to_timeval_long (const struct timeval tv64) +{ + if (__glibc_unlikely (tv64.tv_sec > (time_t) 2147483647)) + return (struct __timeval_long) { 2147483647, 999999}; + return (struct __timeval_long) { tv64.tv_sec, tv64.tv_usec }; +} + +static inline struct timespec +valid_timeval_long_to_timespec (const struct __timeval_long tv) +{ + return (struct timespec) { tv.tv_sec, tv.tv_usec * 1000 }; +} + +static inline struct __timeval_long +valid_timespec_to_timeval_long (const struct timespec ts) +{ + return (struct __timeval_long) { (time_t) ts.tv_sec, ts.tv_nsec / 1000 }; +} + /* Check if a value is in the valid nanoseconds range. Return true if it is, false otherwise. */ static inline bool |