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123 lines
2 KiB
C
123 lines
2 KiB
C
/* $Id$
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/kernel32/thread/fls.c
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* PURPOSE: Fiber local storage functions
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* PROGRAMMER: KJK::Hyperion <noog@libero.it>
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*
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* UPDATE HISTORY:
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* 28/05/2003 - created. Stubs only
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*
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*/
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#include <k32.h>
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#include <debug.h>
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/*
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* @unimplemented
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*/
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DWORD
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WINAPI
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FlsAlloc(PFLS_CALLBACK_FUNCTION lpCallback)
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{
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(void)lpCallback;
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UNIMPLEMENTED;
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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return FLS_OUT_OF_INDEXES;
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}
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/*
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* @unimplemented
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*/
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BOOL
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WINAPI
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FlsFree(DWORD dwFlsIndex)
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{
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(void)dwFlsIndex;
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UNIMPLEMENTED;
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SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
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return FALSE;
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}
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/*
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* @implemented
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*/
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PVOID
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WINAPI
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FlsGetValue(DWORD dwFlsIndex)
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{
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PVOID *ppFlsSlots;
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PVOID pRetVal;
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if(dwFlsIndex >= 128) goto l_InvalidParam;
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ppFlsSlots = NtCurrentTeb()->FlsData;
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if(ppFlsSlots == NULL) goto l_InvalidParam;
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SetLastError(0);
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pRetVal = ppFlsSlots[dwFlsIndex + 2];
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return pRetVal;
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l_InvalidParam:
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SetLastError(ERROR_INVALID_PARAMETER);
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return NULL;
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}
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/*
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* @implemented
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*/
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BOOL
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WINAPI
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FlsSetValue(DWORD dwFlsIndex, PVOID lpFlsData)
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{
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PVOID *ppFlsSlots;
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TEB *pTeb = NtCurrentTeb();
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if(dwFlsIndex >= 128) goto l_InvalidParam;
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ppFlsSlots = pTeb->FlsData;
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if (ppFlsSlots == NULL)
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{
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PEB *pPeb = pTeb->ProcessEnvironmentBlock;
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ppFlsSlots = RtlAllocateHeap(pPeb->ProcessHeap,
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HEAP_ZERO_MEMORY,
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(128 + 2) * sizeof(PVOID));
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if(ppFlsSlots == NULL) goto l_OutOfMemory;
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pTeb->FlsData = ppFlsSlots;
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RtlAcquirePebLock();
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/* TODO: initialization */
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RtlReleasePebLock();
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}
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ppFlsSlots[dwFlsIndex + 2] = lpFlsData;
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return TRUE;
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l_OutOfMemory:
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SetLastError(ERROR_NOT_ENOUGH_MEMORY);
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goto l_Fail;
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l_InvalidParam:
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SetLastError(ERROR_INVALID_PARAMETER);
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l_Fail:
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return FALSE;
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}
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/* EOF */
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