Best regards,
Alex Ionescu

On Sat, Feb 28, 2015 at 10:18 AM, Thomas Faber <thomas.faber@reactos.org> wrote:

Wine modules sometimes depend on Vista+ functions, so instead of adding
our own hacks all over their code to make it work on ROS/2003, we put
stuff in this kernel32_vista library.

It's self-contained so if you want to use these modules on Win 2003,
you can simply copy kernel32_vista.dll over to that machine and have
our dlls work without dependency issues.
(We could even make this a static library if we wanted to)

In this particular case, we already have three modules with broken
hacks in place to avoid using this function. This lets us restore the
Wine-sync and get rid of the hacks.

On 2015-02-28 18:34, Alex Ionescu wrote:
> Why are we adding Wineisms to core binaries like kernel32? These functions
> should be in NTDLL and not in kernel32, and they are badly written anyway.
>
> Best regards,
> Alex Ionescu
>
> On Sat, Feb 28, 2015 at 10:46 AM, <akhaldi@svn.reactos.org> wrote:
>
>> Author: akhaldi
>> Date: Sat Feb 28 15:46:43 2015
>> New Revision: 66500
>>
>> URL: http://svn.reactos.org/svn/reactos?rev=66500&view=rev
>> Log:
>> [KERNEL32_VISTA] Add and export InitOnceExecuteOnce(). CORE-9246
>>
>> Added:
>> trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c (with
>> props)
>> Modified:
>> trunk/reactos/dll/win32/kernel32_vista/CMakeLists.txt
>> trunk/reactos/dll/win32/kernel32_vista/kernel32_vista.spec
>>
>> Modified: trunk/reactos/dll/win32/kernel32_vista/CMakeLists.txt
>> URL:
>> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32_vista/CMakeLists.txt?rev=66500&r1=66499&r2=66500&view=diff
>>
>> ==============================================================================
>> --- trunk/reactos/dll/win32/kernel32_vista/CMakeLists.txt
>> [iso-8859-1] (original)
>> +++ trunk/reactos/dll/win32/kernel32_vista/CMakeLists.txt
>> [iso-8859-1] Sat Feb 28 15:46:43 2015
>> @@ -8,15 +8,11 @@
>> list(APPEND SOURCE
>> DllMain.c
>> GetTickCount64.c
>> + InitOnceExecuteOnce.c
>> ${CMAKE_CURRENT_BINARY_DIR}/kernel32_vista.def)
>>
>> add_library(kernel32_vista SHARED ${SOURCE})
>> set_module_type(kernel32_vista win32dll HOTPATCHABLE ENTRYPOINT DllMain
>> 12)
>> -add_importlibs(kernel32_vista kernel32)
>> -
>> -if(MSVC)
>> - add_importlibs(kernel32_vista ntdll)
>> -endif()
>> -
>> +add_importlibs(kernel32_vista kernel32 ntdll)
>> add_dependencies(kernel32_vista psdk)
>> add_cd_file(TARGET kernel32_vista DESTINATION reactos/system32 FOR all)
>>
>> Added: trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c
>> URL:
>> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c?rev=66500
>>
>> ==============================================================================
>> --- trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c
>> (added)
>> +++ trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c
>> [iso-8859-1] Sat Feb 28 15:46:43 2015
>> @@ -0,0 +1,118 @@
>> +
>> +#include "k32_vista.h"
>> +
>> +#include <ndk/exfuncs.h>
>> +#include <wine/config.h>
>> +#include <wine/port.h>
>> +
>> +/* Taken from Wine ntdll/sync.c */
>> +
>> +HANDLE keyed_event = NULL;
>> +
>> +static DWORD WINAPI RtlRunOnceBeginInitialize( RTL_RUN_ONCE *once, ULONG
>> flags, void **context )
>> +{
>> + if (flags & RTL_RUN_ONCE_CHECK_ONLY)
>> + {
>> + ULONG_PTR val = (ULONG_PTR)once->Ptr;
>> +
>> + if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
>> + if ((val & 3) != 2) return STATUS_UNSUCCESSFUL;
>> + if (context) *context = (void *)(val & ~3);
>> + return STATUS_SUCCESS;
>> + }
>> +
>> + for (;;)
>> + {
>> + ULONG_PTR next, val = (ULONG_PTR)once->Ptr;
>> +
>> + switch (val & 3)
>> + {
>> + case 0: /* first time */
>> + if (!interlocked_cmpxchg_ptr( &once->Ptr,
>> + (flags & RTL_RUN_ONCE_ASYNC) ?
>> (void *)3 : (void *)1, 0 ))
>> + return STATUS_PENDING;
>> + break;
>> +
>> + case 1: /* in progress, wait */
>> + if (flags & RTL_RUN_ONCE_ASYNC) return
>> STATUS_INVALID_PARAMETER;
>> + next = val & ~3;
>> + if (interlocked_cmpxchg_ptr( &once->Ptr, (void
>> *)((ULONG_PTR)&next | 1),
>> + (void *)val ) == (void *)val)
>> + NtWaitForKeyedEvent( keyed_event, &next, FALSE, NULL );
>> + break;
>> +
>> + case 2: /* done */
>> + if (context) *context = (void *)(val & ~3);
>> + return STATUS_SUCCESS;
>> +
>> + case 3: /* in progress, async */
>> + if (!(flags & RTL_RUN_ONCE_ASYNC)) return
>> STATUS_INVALID_PARAMETER;
>> + return STATUS_PENDING;
>> + }
>> + }
>> +}
>> +
>> +static DWORD WINAPI RtlpRunOnceComplete( RTL_RUN_ONCE *once, ULONG flags,
>> void *context )
>> +{
>> + if ((ULONG_PTR)context & 3) return STATUS_INVALID_PARAMETER;
>> +
>> + if (flags & RTL_RUN_ONCE_INIT_FAILED)
>> + {
>> + if (context) return STATUS_INVALID_PARAMETER;
>> + if (flags & RTL_RUN_ONCE_ASYNC) return STATUS_INVALID_PARAMETER;
>> + }
>> + else context = (void *)((ULONG_PTR)context | 2);
>> +
>> + for (;;)
>> + {
>> + ULONG_PTR val = (ULONG_PTR)once->Ptr;
>> +
>> + switch (val & 3)
>> + {
>> + case 1: /* in progress */
>> + if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val
>> ) != (void *)val) break;
>> + val &= ~3;
>> + while (val)
>> + {
>> + ULONG_PTR next = *(ULONG_PTR *)val;
>> + NtReleaseKeyedEvent( keyed_event, (void *)val, FALSE,
>> NULL );
>> + val = next;
>> + }
>> + return STATUS_SUCCESS;
>> +
>> + case 3: /* in progress, async */
>> + if (!(flags & RTL_RUN_ONCE_ASYNC)) return
>> STATUS_INVALID_PARAMETER;
>> + if (interlocked_cmpxchg_ptr( &once->Ptr, context, (void *)val
>> ) != (void *)val) break;
>> + return STATUS_SUCCESS;
>> +
>> + default:
>> + return STATUS_UNSUCCESSFUL;
>> + }
>> + }
>> +}
>> +
>> +static DWORD WINAPI RtlpRunOnceExecuteOnce( RTL_RUN_ONCE *once,
>> PRTL_RUN_ONCE_INIT_FN func,
>> + void *param, void **context )
>> +{
>> + DWORD ret = RtlRunOnceBeginInitialize( once, 0, context );
>> +
>> + if (ret != STATUS_PENDING) return ret;
>> +
>> + if (!func( once, param, context ))
>> + {
>> + RtlpRunOnceComplete( once, RTL_RUN_ONCE_INIT_FAILED, NULL );
>> + return STATUS_UNSUCCESSFUL;
>> + }
>> +
>> + return RtlpRunOnceComplete( once, 0, context ? *context : NULL );
>> +}
>> +
>> +/* Taken from Wine kernel32/sync.c */
>> +
>> +/*
>> + * @implemented
>> + */
>> +BOOL NTAPI InitOnceExecuteOnce( INIT_ONCE *once, PINIT_ONCE_FN func, void
>> *param, void **context )
>> +{
>> + return !RtlpRunOnceExecuteOnce( once, (PRTL_RUN_ONCE_INIT_FN)func,
>> param, context );
>> +}
>>
>> Propchange: trunk/reactos/dll/win32/kernel32_vista/InitOnceExecuteOnce.c
>>
>> ------------------------------------------------------------------------------
>> svn:eol-style = native
>>
>> Modified: trunk/reactos/dll/win32/kernel32_vista/kernel32_vista.spec
>> URL:
>> http://svn.reactos.org/svn/reactos/trunk/reactos/dll/win32/kernel32_vista/kernel32_vista.spec?rev=66500&r1=66499&r2=66500&view=diff
>>
>> ==============================================================================
>> --- trunk/reactos/dll/win32/kernel32_vista/kernel32_vista.spec
>> [iso-8859-1] (original)
>> +++ trunk/reactos/dll/win32/kernel32_vista/kernel32_vista.spec
>> [iso-8859-1] Sat Feb 28 15:46:43 2015
>> @@ -1,2 +1,3 @@
>>
>> @ stdcall -ret64 GetTickCount64()
>> +@ stdcall InitOnceExecuteOnce(ptr ptr ptr ptr)
>>
>>
>>

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