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487 lines
13 KiB
C
487 lines
13 KiB
C
/*
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* NT basis DLL
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*
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* This file contains the Rtl* API functions. These should be implementable.
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*
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* Copyright 1996-1998 Marcus Meissner
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* 1999 Alex Korobka
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "heap.h"
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#include "debugtools.h"
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#include "winuser.h"
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#include "winerror.h"
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#include "stackframe.h"
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#include "ntddk.h"
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#include "winreg.h"
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DEFAULT_DEBUG_CHANNEL(ntdll)
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/*
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* resource functions
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*/
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/***********************************************************************
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* RtlInitializeResource (NTDLL.409)
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*
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* xxxResource() functions implement multiple-reader-single-writer lock.
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* The code is based on information published in WDJ January 1999 issue.
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*/
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void WINAPI RtlInitializeResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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rwl->iNumberActive = 0;
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rwl->uExclusiveWaiters = 0;
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rwl->uSharedWaiters = 0;
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rwl->hOwningThreadId = 0;
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rwl->dwTimeoutBoost = 0; /* no info on this one, default value is 0 */
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InitializeCriticalSection( &rwl->rtlCS );
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rwl->hExclusiveReleaseSemaphore = CreateSemaphoreA( NULL, 0, 65535, NULL );
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rwl->hSharedReleaseSemaphore = CreateSemaphoreA( NULL, 0, 65535, NULL );
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}
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}
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/***********************************************************************
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* RtlDeleteResource (NTDLL.330)
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*/
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void WINAPI RtlDeleteResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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EnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive || rwl->uExclusiveWaiters || rwl->uSharedWaiters )
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MESSAGE("Deleting active MRSW lock (%p), expect failure\n", rwl );
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rwl->hOwningThreadId = 0;
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rwl->uExclusiveWaiters = rwl->uSharedWaiters = 0;
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rwl->iNumberActive = 0;
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CloseHandle( rwl->hExclusiveReleaseSemaphore );
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CloseHandle( rwl->hSharedReleaseSemaphore );
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LeaveCriticalSection( &rwl->rtlCS );
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DeleteCriticalSection( &rwl->rtlCS );
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}
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}
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/***********************************************************************
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* RtlAcquireResourceExclusive (NTDLL.256)
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*/
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BYTE WINAPI RtlAcquireResourceExclusive(LPRTL_RWLOCK rwl, BYTE fWait)
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{
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BYTE retVal = 0;
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if( !rwl ) return 0;
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start:
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EnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive == 0 ) /* lock is free */
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{
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rwl->iNumberActive = -1;
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retVal = 1;
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}
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else if( rwl->iNumberActive < 0 ) /* exclusive lock in progress */
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{
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if( rwl->hOwningThreadId == GetCurrentThreadId() )
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{
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retVal = 1;
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rwl->iNumberActive--;
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goto done;
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}
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wait:
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if( fWait )
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{
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rwl->uExclusiveWaiters++;
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LeaveCriticalSection( &rwl->rtlCS );
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if( WaitForSingleObject( rwl->hExclusiveReleaseSemaphore, INFINITE ) == WAIT_FAILED )
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goto done;
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goto start; /* restart the acquisition to avoid deadlocks */
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}
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}
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else /* one or more shared locks are in progress */
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if( fWait )
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goto wait;
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if( retVal == 1 )
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rwl->hOwningThreadId = GetCurrentThreadId();
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done:
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LeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlAcquireResourceShared (NTDLL.257)
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*/
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BYTE WINAPI RtlAcquireResourceShared(LPRTL_RWLOCK rwl, BYTE fWait)
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{
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DWORD dwWait = WAIT_FAILED;
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BYTE retVal = 0;
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if( !rwl ) return 0;
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start:
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EnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive < 0 )
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{
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if( rwl->hOwningThreadId == GetCurrentThreadId() )
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{
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rwl->iNumberActive--;
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retVal = 1;
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goto done;
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}
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if( fWait )
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{
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rwl->uSharedWaiters++;
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LeaveCriticalSection( &rwl->rtlCS );
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if( (dwWait = WaitForSingleObject( rwl->hSharedReleaseSemaphore, INFINITE )) == WAIT_FAILED )
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goto done;
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goto start;
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}
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}
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else
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{
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if( dwWait != WAIT_OBJECT_0 ) /* otherwise RtlReleaseResource() has already done it */
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rwl->iNumberActive++;
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retVal = 1;
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}
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done:
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LeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlReleaseResource (NTDLL.471)
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*/
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void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
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{
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EnterCriticalSection( &rwl->rtlCS );
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if( rwl->iNumberActive > 0 ) /* have one or more readers */
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{
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if( --rwl->iNumberActive == 0 )
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{
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if( rwl->uExclusiveWaiters )
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{
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wake_exclusive:
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rwl->uExclusiveWaiters--;
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ReleaseSemaphore( rwl->hExclusiveReleaseSemaphore, 1, NULL );
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}
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}
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}
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else
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if( rwl->iNumberActive < 0 ) /* have a writer, possibly recursive */
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{
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if( ++rwl->iNumberActive == 0 )
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{
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rwl->hOwningThreadId = 0;
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if( rwl->uExclusiveWaiters )
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goto wake_exclusive;
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else
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if( rwl->uSharedWaiters )
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{
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UINT n = rwl->uSharedWaiters;
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rwl->iNumberActive = rwl->uSharedWaiters; /* prevent new writers from joining until
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* all queued readers have done their thing */
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rwl->uSharedWaiters = 0;
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ReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
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}
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}
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}
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LeaveCriticalSection( &rwl->rtlCS );
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}
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/***********************************************************************
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* RtlDumpResource (NTDLL.340)
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*/
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void WINAPI RtlDumpResource(LPRTL_RWLOCK rwl)
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{
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if( rwl )
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{
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MESSAGE("RtlDumpResource(%p):\n\tactive count = %i\n\twaiting readers = %i\n\twaiting writers = %i\n",
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rwl, rwl->iNumberActive, rwl->uSharedWaiters, rwl->uExclusiveWaiters );
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if( rwl->iNumberActive )
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MESSAGE("\towner thread = %08x\n", rwl->hOwningThreadId );
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}
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}
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/*
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* heap functions
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*/
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/******************************************************************************
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* RtlCreateHeap [NTDLL]
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*/
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HANDLE WINAPI RtlCreateHeap(
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ULONG Flags,
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PVOID BaseAddress,
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ULONG SizeToReserve,
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ULONG SizeToCommit,
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PVOID Unknown,
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PRTL_HEAP_DEFINITION Definition)
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{
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FIXME("(0x%08lx, %p, 0x%08lx, 0x%08lx, %p, %p) semi-stub\n",
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Flags, BaseAddress, SizeToReserve, SizeToCommit, Unknown, Definition);
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return HeapCreate ( Flags, SizeToCommit, SizeToReserve);
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}
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/******************************************************************************
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* RtlAllocateHeap [NTDLL]
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*/
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PVOID WINAPI RtlAllocateHeap(
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HANDLE Heap,
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ULONG Flags,
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ULONG Size)
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{
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FIXME("(0x%08x, 0x%08lx, 0x%08lx) semi stub\n",
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Heap, Flags, Size);
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return HeapAlloc(Heap, Flags, Size);
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}
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/******************************************************************************
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* RtlFreeHeap [NTDLL]
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*/
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BOOLEAN WINAPI RtlFreeHeap(
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HANDLE Heap,
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ULONG Flags,
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PVOID Address)
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{
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FIXME("(0x%08x, 0x%08lx, %p) semi stub\n",
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Heap, Flags, Address);
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return HeapFree(Heap, Flags, Address);
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}
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/******************************************************************************
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* RtlDestroyHeap [NTDLL]
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*
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* FIXME: prototype guessed
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*/
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BOOLEAN WINAPI RtlDestroyHeap(
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HANDLE Heap)
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{
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FIXME("(0x%08x) semi stub\n", Heap);
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return HeapDestroy(Heap);
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}
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/*
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* misc functions
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*/
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/******************************************************************************
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* DbgPrint [NTDLL]
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*/
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void __cdecl DbgPrint(LPCSTR fmt,LPVOID args) {
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char buf[512];
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wvsprintfA(buf,fmt,&args);
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MESSAGE("DbgPrint says: %s",buf);
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/* hmm, raise exception? */
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}
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/******************************************************************************
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* RtlAcquirePebLock [NTDLL]
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*/
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VOID WINAPI RtlAcquirePebLock(void) {
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FIXME("()\n");
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/* enter critical section ? */
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}
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/******************************************************************************
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* RtlReleasePebLock [NTDLL]
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*/
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VOID WINAPI RtlReleasePebLock(void) {
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FIXME("()\n");
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/* leave critical section ? */
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}
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/******************************************************************************
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* RtlIntegerToChar [NTDLL]
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*/
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DWORD WINAPI RtlIntegerToChar(DWORD x1,DWORD x2,DWORD x3,DWORD x4) {
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FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4);
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return 0;
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}
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/******************************************************************************
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* RtlSetEnvironmentVariable [NTDLL]
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*/
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DWORD WINAPI RtlSetEnvironmentVariable(DWORD x1,PUNICODE_STRING key,PUNICODE_STRING val) {
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FIXME("(0x%08lx,%s,%s),stub!\n",x1,debugstr_w(key->Buffer),debugstr_w(val->Buffer));
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return 0;
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}
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/******************************************************************************
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* RtlNewSecurityObject [NTDLL]
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*/
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DWORD WINAPI RtlNewSecurityObject(DWORD x1,DWORD x2,DWORD x3,DWORD x4,DWORD x5,DWORD x6) {
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FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4,x5,x6);
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return 0;
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}
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/******************************************************************************
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* RtlDeleteSecurityObject [NTDLL]
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*/
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DWORD WINAPI RtlDeleteSecurityObject(DWORD x1) {
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FIXME("(0x%08lx),stub!\n",x1);
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return 0;
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}
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/**************************************************************************
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* RtlNormalizeProcessParams [NTDLL.441]
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*/
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LPVOID WINAPI RtlNormalizeProcessParams(LPVOID x)
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{
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FIXME("(%p), stub\n",x);
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return x;
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}
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/**************************************************************************
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* RtlNtStatusToDosError [NTDLL.442]
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*/
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DWORD WINAPI RtlNtStatusToDosError(DWORD error)
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{
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FIXME("(%lx): map STATUS_ to ERROR_\n",error);
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switch (error)
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{ case STATUS_SUCCESS: return ERROR_SUCCESS;
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case STATUS_INVALID_PARAMETER: return ERROR_BAD_ARGUMENTS;
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case STATUS_BUFFER_TOO_SMALL: return ERROR_INSUFFICIENT_BUFFER;
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/* case STATUS_INVALID_SECURITY_DESCR: return ERROR_INVALID_SECURITY_DESCR;*/
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case STATUS_NO_MEMORY: return ERROR_NOT_ENOUGH_MEMORY;
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/* case STATUS_UNKNOWN_REVISION:
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case STATUS_BUFFER_OVERFLOW:*/
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}
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FIXME("unknown status (%lx)\n",error);
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return ERROR_SUCCESS;
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}
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/**************************************************************************
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* RtlGetNtProductType [NTDLL.390]
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*/
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BOOLEAN WINAPI RtlGetNtProductType(LPDWORD type)
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{
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FIXME("(%p): stub\n", type);
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*type=3; /* dunno. 1 for client, 3 for server? */
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return 1;
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}
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/**************************************************************************
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* NTDLL_chkstk [NTDLL.862]
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* NTDLL_alloca_probe [NTDLL.861]
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* Glorified "enter xxxx".
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*/
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void WINAPI REGS_FUNC(NTDLL_chkstk)( CONTEXT *context )
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{
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ESP_reg(context) -= EAX_reg(context);
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}
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void WINAPI REGS_FUNC(NTDLL_alloca_probe)( CONTEXT *context )
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{
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ESP_reg(context) -= EAX_reg(context);
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}
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/******************************************************************************
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* RtlExtendedLargeIntegerDivide [NTDLL.359]
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*/
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INT WINAPI RtlExtendedLargeIntegerDivide(
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LARGE_INTEGER dividend,
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DWORD divisor,
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LPDWORD rest
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) {
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#if SIZEOF_LONG_LONG==8
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long long x1 = *(long long*)÷nd;
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if (*rest)
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*rest = x1 % divisor;
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return x1/divisor;
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#else
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FIXME("((%d<<32)+%d,%d,%p), implement this using normal integer arithmetic!\n",dividend.HighPart,dividend.LowPart,divisor,rest);
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return 0;
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#endif
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}
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/******************************************************************************
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* RtlExtendedLargeIntegerMultiply [NTDLL.359]
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* Note: This even works, since gcc returns 64bit values in eax/edx just like
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* the caller expects. However... The relay code won't grok this I think.
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*/
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long long WINAPI RtlExtendedIntegerMultiply(
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LARGE_INTEGER factor1,
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INT factor2)
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{
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#if SIZEOF_LONG_LONG==8
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return (*(long long*)&factor1) * factor2;
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#else
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FIXME("((%d<<32)+%d,%ld), implement this using normal integer arithmetic!\n",factor1.HighPart,factor1.LowPart,factor2);
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return 0;
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#endif
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}
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/******************************************************************************
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* RtlFormatCurrentUserKeyPath [NTDLL.371]
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*/
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DWORD WINAPI RtlFormatCurrentUserKeyPath(DWORD x)
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{
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FIXME("(0x%08lx): stub\n",x);
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return 1;
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}
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/******************************************************************************
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* RtlOpenCurrentUser [NTDLL]
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*/
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DWORD WINAPI RtlOpenCurrentUser(DWORD x1, DWORD *x2)
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{
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/* Note: this is not the correct solution,
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* But this works pretty good on wine and NT4.0 binaries
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*/
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if ( x1 == 0x2000000 ) {
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*x2 = HKEY_CURRENT_USER;
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return TRUE;
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}
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return FALSE;
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}
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/**************************************************************************
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* RtlDosPathNameToNtPathName_U [NTDLL.338]
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*
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* FIXME: convert to UNC or whatever is expected here
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*/
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BOOLEAN WINAPI RtlDosPathNameToNtPathName_U(
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LPWSTR from,PUNICODE_STRING us,DWORD x2,DWORD x3)
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{
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LPSTR fromA = HEAP_strdupWtoA(GetProcessHeap(),0,from);
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FIXME("(%s,%p,%08lx,%08lx)\n",fromA,us,x2,x3);
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if (us)
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RtlInitUnicodeString(us,HEAP_strdupW(GetProcessHeap(),0,from));
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return TRUE;
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}
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/******************************************************************************
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* RtlCreateEnvironment [NTDLL]
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*/
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DWORD WINAPI RtlCreateEnvironment(DWORD x1,DWORD x2) {
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FIXME("(0x%08lx,0x%08lx),stub!\n",x1,x2);
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return 0;
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}
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/******************************************************************************
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* RtlDestroyEnvironment [NTDLL]
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*/
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DWORD WINAPI RtlDestroyEnvironment(DWORD x) {
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FIXME("(0x%08lx),stub!\n",x);
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return 0;
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}
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/******************************************************************************
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* RtlQueryEnvironmentVariable_U [NTDLL]
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*/
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DWORD WINAPI RtlQueryEnvironmentVariable_U(DWORD x1,PUNICODE_STRING key,PUNICODE_STRING val) {
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FIXME("(0x%08lx,%s,%p),stub!\n",x1,debugstr_w(key->Buffer),val);
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return 0;
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}
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