shared: Add timespec_eq helper function
Add a helper function to check if two struct timespec values are equal. This helper function will be used in upcoming commits that implement the input_timestamps_unstable_v1 protocol. Signed-off-by: Alexandros Frantzis <alexandros.frantzis@collabora.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
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@ -231,6 +231,19 @@ timespec_is_zero(const struct timespec *a)
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return a->tv_sec == 0 && a->tv_nsec == 0;
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}
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/* Check if two timespecs are equal
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*
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* \param a[in] timespec to check
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* \param b[in] timespec to check
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* \return whether timespecs a and b are equal
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*/
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static inline bool
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timespec_eq(const struct timespec *a, const struct timespec *b)
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{
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return a->tv_sec == b->tv_sec &&
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a->tv_nsec == b->tv_nsec;
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}
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/* Convert milli-Hertz to nanoseconds
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*
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* \param mhz frequency in mHz, not zero
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@ -294,3 +294,15 @@ ZUC_TEST(timespec_test, timespec_is_zero)
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ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_nsec));
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ZUC_ASSERT_FALSE(timespec_is_zero(&non_zero_sec));
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}
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ZUC_TEST(timespec_test, timespec_eq)
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{
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struct timespec a = { .tv_sec = 2, .tv_nsec = 1 };
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struct timespec b = { .tv_sec = -1, .tv_nsec = 2 };
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ZUC_ASSERT_TRUE(timespec_eq(&a, &a));
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ZUC_ASSERT_TRUE(timespec_eq(&b, &b));
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ZUC_ASSERT_FALSE(timespec_eq(&a, &b));
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ZUC_ASSERT_FALSE(timespec_eq(&b, &a));
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}
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