marko10_000
/
wine-wine
forked from Mirrors/wine-wine
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

kernel32: Implement the fiber local storage functions.

oldstable
Alexandre Julliard 2008-02-29 19:56:04 +01:00
parent 6d6e9a42b1
commit b2ad268a8b
1 changed files with 73 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

88
dlls/kernel32/fiber.c
View File

@ -48,6 +48,7 @@ struct fiber_data
sigjmp_buf jmpbuf; /* 14 setjmp buffer (on Windows: CONTEXT) */
DWORD flags; /* fiber flags */
LPFIBER_START_ROUTINE start; /* start routine */
void **fls_slots; /* fiber storage slots */
};
@ -107,6 +108,7 @@ LPVOID WINAPI CreateFiberEx( SIZE_T stack_commit, SIZE_T stack_reserve, DWORD fl
fiber->except = (void *)-1;
fiber->start = start;
fiber->flags = flags;
fiber->fls_slots = NULL;
return fiber;
}
@ -125,6 +127,7 @@ void WINAPI DeleteFiber( LPVOID fiber_ptr )
ExitThread(1);
}
VirtualFree( fiber->stack_allocation, 0, MEM_RELEASE );
HeapFree( GetProcessHeap(), 0, fiber->fls_slots );
HeapFree( GetProcessHeap(), 0, fiber );
}
@ -157,6 +160,7 @@ LPVOID WINAPI ConvertThreadToFiberEx( LPVOID param, DWORD flags )
fiber->stack_allocation = NtCurrentTeb()->DeallocationStack;
fiber->start = NULL;
fiber->flags = flags;
fiber->fls_slots = NtCurrentTeb()->FlsSlots;
NtCurrentTeb()->Tib.u.FiberData = fiber;
return fiber;
}
@ -188,6 +192,7 @@ void WINAPI SwitchToFiber( LPVOID fiber )
current_fiber->except = NtCurrentTeb()->Tib.ExceptionList;
current_fiber->stack_limit = NtCurrentTeb()->Tib.StackLimit;
current_fiber->fls_slots = NtCurrentTeb()->FlsSlots;
/* stack_allocation and stack_base never change */
/* FIXME: should save floating point context if requested in fiber->flags */
@ -198,6 +203,7 @@ void WINAPI SwitchToFiber( LPVOID fiber )
NtCurrentTeb()->Tib.StackBase = new_fiber->stack_base;
NtCurrentTeb()->Tib.StackLimit = new_fiber->stack_limit;
NtCurrentTeb()->DeallocationStack = new_fiber->stack_allocation;
NtCurrentTeb()->FlsSlots = new_fiber->fls_slots;
if (new_fiber->start) /* first time */
wine_switch_to_stack( start_fiber, new_fiber, new_fiber->stack_base );
else
@ -210,10 +216,40 @@ void WINAPI SwitchToFiber( LPVOID fiber )
*/
DWORD WINAPI FlsAlloc( PFLS_CALLBACK_FUNCTION callback )
{
FIXME( "%p: stub!\n", callback );
DWORD index;
PEB * const peb = NtCurrentTeb()->Peb;
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FLS_OUT_OF_INDEXES;
RtlAcquirePebLock();
if (!peb->FlsCallback &&
!(peb->FlsCallback = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
8 * sizeof(peb->FlsBitmapBits) * sizeof(void*) )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
index = FLS_OUT_OF_INDEXES;
}
else
{
index = RtlFindClearBitsAndSet( peb->FlsBitmap, 1, 0 );
if (index != ~0U)
{
if (!NtCurrentTeb()->FlsSlots &&
!(NtCurrentTeb()->FlsSlots = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
8 * sizeof(peb->FlsBitmapBits) * sizeof(void*) )))
{
RtlClearBits( peb->FlsBitmap, index, 1 );
index = FLS_OUT_OF_INDEXES;
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
}
else
{
NtCurrentTeb()->FlsSlots[index] = 0; /* clear the value */
peb->FlsCallback[index] = callback;
}
}
else SetLastError( ERROR_NO_MORE_ITEMS );
}
RtlReleasePebLock();
return index;
}
/***********************************************************************
@ -221,10 +257,20 @@ DWORD WINAPI FlsAlloc( PFLS_CALLBACK_FUNCTION callback )
*/
BOOL WINAPI FlsFree( DWORD index )
{
FIXME( "%x: stub!\n", index );
BOOL ret;
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FALSE;
RtlAcquirePebLock();
ret = RtlAreBitsSet( NtCurrentTeb()->Peb->FlsBitmap, index, 1 );
if (ret) RtlClearBits( NtCurrentTeb()->Peb->FlsBitmap, index, 1 );
if (ret)
{
/* FIXME: call Fls callback */
/* FIXME: add equivalent of ThreadZeroTlsCell here */
if (NtCurrentTeb()->FlsSlots) NtCurrentTeb()->FlsSlots[index] = 0;
}
else SetLastError( ERROR_INVALID_PARAMETER );
RtlReleasePebLock();
return TRUE;
}
/***********************************************************************
@ -232,10 +278,13 @@ BOOL WINAPI FlsFree( DWORD index )
*/
PVOID WINAPI FlsGetValue( DWORD index )
{
FIXME( "%x: stub!\n", index );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return NULL;
if (index >= 8 * sizeof(NtCurrentTeb()->Peb->FlsBitmapBits) || !NtCurrentTeb()->FlsSlots)
{
SetLastError( ERROR_INVALID_PARAMETER );
return NULL;
}
SetLastError( ERROR_SUCCESS );
return NtCurrentTeb()->FlsSlots[index];
}
/***********************************************************************
@ -243,9 +292,18 @@ PVOID WINAPI FlsGetValue( DWORD index )
*/
BOOL WINAPI FlsSetValue( DWORD index, PVOID data )
{
FIXME( "%x, %p: stub!\n", index, data );
SetLastError( ERROR_CALL_NOT_IMPLEMENTED );
return FALSE;
if (index >= 8 * sizeof(NtCurrentTeb()->Peb->FlsBitmapBits))
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (!NtCurrentTeb()->FlsSlots &&
!(NtCurrentTeb()->FlsSlots = HeapAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY,
8 * sizeof(NtCurrentTeb()->Peb->FlsBitmapBits) * sizeof(void*) )))
{
SetLastError( ERROR_NOT_ENOUGH_MEMORY );
return FALSE;
}
NtCurrentTeb()->FlsSlots[index] = data;
return TRUE;
}