[PATCH 5/6] y2038: Provide conversion helpers for struct __timeval64

[Alistair Francis]

On Sat, Jan 18, 2020 at 5:21 PM Lukasz Majewski <lukma@denx.de> wrote:
>
> Those functions allow easy conversion between Y2038 safe, glibc internal
> struct __timeval64 and other time related data structures (like struct timeval
> or struct __timespec64).
>
> Build tests:
> ./src/scripts/build-many-glibcs.py glibcs

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>

Alistair

> ---
>  include/time.h | 36 ++++++++++++++++++++++++++++++++++++
>  1 file changed, 36 insertions(+)
>
> diff --git a/include/time.h b/include/time.h
> index 22ecacd0d8..b40214c006 100644
> --- a/include/time.h
> +++ b/include/time.h
> @@ -304,6 +304,30 @@ valid_timeval_to_timespec64 (const struct timeval tv)
>    return ts64;
>  }
>
> +/* Convert a known valid struct timeval into a struct __timeval64.  */
> +static inline struct __timeval64
> +valid_timeval_to_timeval64 (const struct timeval tv)
> +{
> +  struct __timeval64 tv64;
> +
> +  tv64.tv_sec = tv.tv_sec;
> +  tv64.tv_usec = tv.tv_usec;
> +
> +  return tv64;
> +}
> +
> +/* Convert a struct __timeval64 into a struct __timespec64.  */
> +static inline struct __timespec64
> +timeval64_to_timespec64 (const struct __timeval64 tv64)
> +{
> +  struct __timespec64 ts64;
> +
> +  ts64.tv_sec = tv64.tv_sec;
> +  ts64.tv_nsec = tv64.tv_usec * 1000;
> +
> +  return ts64;
> +}
> +
>  /* Convert a known valid struct timespec into a struct __timespec64.  */
>  static inline struct __timespec64
>  valid_timespec_to_timespec64 (const struct timespec ts)
> @@ -342,6 +366,18 @@ valid_timespec64_to_timeval (const struct __timespec64 ts64)
>    return tv;
>  }
>
> +/* Convert a struct __timespec64 into a struct __timeval64.  */
> +static inline struct __timeval64
> +timespec64_to_timeval64 (const struct __timespec64 ts64)
> +{
> +  struct __timeval64 tv64;
> +
> +  tv64.tv_sec = ts64.tv_sec;
> +  tv64.tv_usec = ts64.tv_nsec / 1000;
> +
> +  return tv64;
> +}
> +
>  /* Check if a value is in the valid nanoseconds range. Return true if
>     it is, false otherwise.  */
>  static inline bool
> --
> 2.20.1
>