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H A D | ntp_internal.h | c7963487 Sat Dec 12 22:26:42 CST 2015 DengChao <chao.deng@linaro.org> ntp: Fix second_overflow's input parameter type to be 64bits
The function "second_overflow" uses "unsign long" as its input parameter type which will overflow after year 2106 on 32bit systems.
Thus this patch replaces it with time64_t type.
While the 64-bit division is expensive, "next_ntp_leap_sec" has been calculated already, so we can just re-use it in the TIME_INS/DEL cases, allowing one expensive division per leapsecond instead of re-doing the divsion once a second after the leap flag has been set.
Signed-off-by: DengChao <chao.deng@linaro.org> [jstultz: Tweaked commit message] Signed-off-by: John Stultz <john.stultz@linaro.org> c7963487 Sat Dec 12 22:26:42 CST 2015 DengChao <chao.deng@linaro.org> ntp: Fix second_overflow's input parameter type to be 64bits The function "second_overflow" uses "unsign long" as its input parameter type which will overflow after year 2106 on 32bit systems. Thus this patch replaces it with time64_t type. While the 64-bit division is expensive, "next_ntp_leap_sec" has been calculated already, so we can just re-use it in the TIME_INS/DEL cases, allowing one expensive division per leapsecond instead of re-doing the divsion once a second after the leap flag has been set. Signed-off-by: DengChao <chao.deng@linaro.org> [jstultz: Tweaked commit message] Signed-off-by: John Stultz <john.stultz@linaro.org>
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H A D | ntp.c | c7963487 Sat Dec 12 22:26:42 CST 2015 DengChao <chao.deng@linaro.org> ntp: Fix second_overflow's input parameter type to be 64bits
The function "second_overflow" uses "unsign long" as its input parameter type which will overflow after year 2106 on 32bit systems.
Thus this patch replaces it with time64_t type.
While the 64-bit division is expensive, "next_ntp_leap_sec" has been calculated already, so we can just re-use it in the TIME_INS/DEL cases, allowing one expensive division per leapsecond instead of re-doing the divsion once a second after the leap flag has been set.
Signed-off-by: DengChao <chao.deng@linaro.org> [jstultz: Tweaked commit message] Signed-off-by: John Stultz <john.stultz@linaro.org> c7963487 Sat Dec 12 22:26:42 CST 2015 DengChao <chao.deng@linaro.org> ntp: Fix second_overflow's input parameter type to be 64bits The function "second_overflow" uses "unsign long" as its input parameter type which will overflow after year 2106 on 32bit systems. Thus this patch replaces it with time64_t type. While the 64-bit division is expensive, "next_ntp_leap_sec" has been calculated already, so we can just re-use it in the TIME_INS/DEL cases, allowing one expensive division per leapsecond instead of re-doing the divsion once a second after the leap flag has been set. Signed-off-by: DengChao <chao.deng@linaro.org> [jstultz: Tweaked commit message] Signed-off-by: John Stultz <john.stultz@linaro.org>
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