On 31 May 2018 at 19:02, Meenakshi Aggarwal <[email protected]> wrote:
> This patch add function EfiTimeToWday() which returns
> day of the week.
>
> Contributed-under: TianoCore Contribution Agreement 1.1
> Signed-off-by: Meenakshi Aggarwal <[email protected]>
> Signed-off-by: Vabhav <[email protected]>
Please use your full name in the S-o-b line
Also, do you need this patch for upcoming edk2-platforms changes? If
so, please mention that, otherwise it is unclear why we need this
change.
> ---
> EmbeddedPkg/Include/Library/TimeBaseLib.h | 8 ++++++
> EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c | 38
> ++++++++++++++++++++++++---
> 2 files changed, 43 insertions(+), 3 deletions(-)
>
> diff --git a/EmbeddedPkg/Include/Library/TimeBaseLib.h
> b/EmbeddedPkg/Include/Library/TimeBaseLib.h
> index fe3618e..dd0b99f 100644
> --- a/EmbeddedPkg/Include/Library/TimeBaseLib.h
> +++ b/EmbeddedPkg/Include/Library/TimeBaseLib.h
> @@ -65,4 +65,12 @@ EfiTimeToEpoch (
> IN EFI_TIME *Time
> );
>
> +/**
> + returns Day of the week [0-6] 0=Sunday
> + **/
> +UINTN
> +EfiTimeToWday (
> + IN EFI_TIME *Time
> + );
> +
> #endif
> diff --git a/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c
> b/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c
> index 0c0d940..5f2bf65 100644
> --- a/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c
> +++ b/EmbeddedPkg/Library/TimeBaseLib/TimeBaseLib.c
> @@ -77,11 +77,11 @@ EpochToEfiTime (
> }
>
> /**
> - Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01,
> 00:00:00 UTC)
> + Calculate Epoch days
> **/
> UINTN
> EFIAPI
> -EfiTimeToEpoch (
> +EfiGetEpochDays (
> IN EFI_TIME *Time
> )
> {
> @@ -90,7 +90,6 @@ EfiTimeToEpoch (
> UINTN m;
> UINTN JulianDate; // Absolute Julian Date representation of the supplied
> Time
> UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
> - UINTN EpochSeconds;
>
> a = (14 - Time->Month) / 12 ;
> y = Time->Year + 4800 - a;
> @@ -101,11 +100,44 @@ EfiTimeToEpoch (
> ASSERT (JulianDate >= EPOCH_JULIAN_DATE);
> EpochDays = JulianDate - EPOCH_JULIAN_DATE;
>
> + return EpochDays;
> +}
> +/**
> + Converts EFI_TIME to Epoch seconds (elapsed since 1970 JANUARY 01,
> 00:00:00 UTC)
> + **/
> +UINTN
> +EFIAPI
> +EfiTimeToEpoch (
> + IN EFI_TIME *Time
> + )
> +{
> + UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
> + UINTN EpochSeconds;
> +
> + EpochDays = EfiGetEpochDays (Time);
> +
> EpochSeconds = (EpochDays * SEC_PER_DAY) + ((UINTN)Time->Hour *
> SEC_PER_HOUR) + (Time->Minute * SEC_PER_MIN) + Time->Second;
>
> return EpochSeconds;
> }
>
> +/**
> + returns Day of the week [0-6] 0=Sunday
> + **/
> +UINTN
> +EfiTimeToWday (
> + IN EFI_TIME *Time
> + )
> +{
> + UINTN EpochDays; // Number of days elapsed since EPOCH_JULIAN_DAY
> +
> + EpochDays = EfiGetEpochDays (Time);
> +
> + // 4=1/1/1970 was a Thursday
> +
> + return (EpochDays + 4) % 7;
> +}
> +
> BOOLEAN
> EFIAPI
> IsLeapYear (
> --
> 1.9.1
>
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