[PATCH v2 1/3] ntdll: Separate NtGetTickCount from get_tick_count64.

[Huw Davies]

On Thu, May 30, 2019 at 02:47:57AM -0500, Andrew Wesie wrote:
> Signed-off-by: Andrew Wesie <awesie at gmail.com>
> ---
>  dlls/ntdll/ntdll.spec   | 7 +++++--
>  dlls/ntdll/ntdll_misc.h | 3 ---
>  dlls/ntdll/time.c       | 8 ++++++--
>  include/winternl.h      | 1 +
>  4 files changed, 12 insertions(+), 7 deletions(-)
> 
> diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
> index 050ebc7..4ffb3c9 100644
> --- a/dlls/ntdll/ntdll.spec
> +++ b/dlls/ntdll/ntdll.spec
> @@ -194,7 +194,7 @@
>  @ stdcall NtGetCurrentProcessorNumber()
>  # @ stub NtGetDevicePowerState
>  @ stub NtGetPlugPlayEvent
> -@ stdcall -ret64 NtGetTickCount() get_tick_count64
> +@ stdcall NtGetTickCount()
>  @ stdcall NtGetWriteWatch(long long ptr long ptr ptr ptr)
>  @ stdcall NtImpersonateAnonymousToken(long)
>  @ stub NtImpersonateClientOfPort
> @@ -1142,7 +1142,7 @@
>  @ stdcall -private ZwGetCurrentProcessorNumber() NtGetCurrentProcessorNumber
>  # @ stub ZwGetDevicePowerState
>  @ stub ZwGetPlugPlayEvent
> -@ stdcall -private -ret64 ZwGetTickCount() get_tick_count64
> +@ stdcall -private ZwGetTickCount() NtGetTickCount
>  @ stdcall -private ZwGetWriteWatch(long long ptr long ptr ptr ptr) NtGetWriteWatch
>  @ stdcall -private ZwImpersonateAnonymousToken(long) NtImpersonateAnonymousToken
>  @ stub ZwImpersonateClientOfPort
> @@ -1529,3 +1529,6 @@
>  # Filesystem
>  @ cdecl wine_nt_to_unix_file_name(ptr ptr long long)
>  @ cdecl wine_unix_to_nt_file_name(ptr ptr)
> +
> +# Time
> +@ cdecl -ret64 wine_get_tick_count64()

This will end up causing a performance regression (as well as having
to add a Wine specific api to ntdll).  I've sent in a patch that
essentially duplicates monotonic_counter() in kernel32.

Huw.