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| author | Alexandros Frantzis <alexandros.frantzis@collabora.com> | 2017-12-13 13:27:53 +0200 |
|---|---|---|
| committer | Pekka Paalanen <pekka.paalanen@collabora.co.uk> | 2017-12-18 11:27:43 +0200 |
| commit | 787fa611de1b7c4144b7491260c513a5ec0a4728 (patch) | |
| tree | 8417d4dfcf7f13ce9c2b18ada1400ef7105b5a2c /shared | |
| parent | c83fdaa55568b1177f8f4752a5ce352fd0c32a69 (diff) | |
| download | weston-787fa611de1b7c4144b7491260c513a5ec0a4728.tar.gz | |
shared: Add timespec_from_proto helper function
Add helper function to convert tv_sec_hi, tv_sec_lo, tv_nsec triplets,
used for sending high-resolution timestamp data over the wayland
protocol, to struct timespec values. Replace existing conversion code
with the helper function.
Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
Diffstat (limited to 'shared')
| -rw-r--r-- | shared/timespec-util.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/shared/timespec-util.h b/shared/timespec-util.h index f9736c27..5184d281 100644 --- a/shared/timespec-util.h +++ b/shared/timespec-util.h @@ -181,6 +181,21 @@ timespec_from_msec(struct timespec *a, int64_t b) timespec_from_nsec(a, b * 1000000); } +/* Convert protocol data to timespec + * + * \param a[out] timespec + * \param tv_sec_hi the high bytes of seconds part + * \param tv_sec_lo the low bytes of seconds part + * \param tv_nsec the nanoseconds part + */ +static inline void +timespec_from_proto(struct timespec *a, uint32_t tv_sec_hi, + uint32_t tv_sec_lo, uint32_t tv_nsec) +{ + a->tv_sec = ((uint64_t)tv_sec_hi << 32) + tv_sec_lo; + a->tv_nsec = tv_nsec; +} + /* Check if a timespec is zero * * \param a timespec |