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540 lines
14 KiB
C
540 lines
14 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 <stdio.h>
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#include <string.h>
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#include "debugtools.h"
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#include "windef.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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static RTL_CRITICAL_SECTION peb_lock = CRITICAL_SECTION_INIT("peb_lock");
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/*
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* resource functions
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*/
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/***********************************************************************
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* RtlInitializeResource (NTDLL.@)
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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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RtlInitializeCriticalSection( &rwl->rtlCS );
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NtCreateSemaphore( &rwl->hExclusiveReleaseSemaphore, 0, NULL, 0, 65535 );
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NtCreateSemaphore( &rwl->hSharedReleaseSemaphore, 0, NULL, 0, 65535 );
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}
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}
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/***********************************************************************
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* RtlDeleteResource (NTDLL.@)
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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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RtlEnterCriticalSection( &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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NtClose( rwl->hExclusiveReleaseSemaphore );
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NtClose( rwl->hSharedReleaseSemaphore );
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RtlLeaveCriticalSection( &rwl->rtlCS );
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RtlDeleteCriticalSection( &rwl->rtlCS );
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}
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}
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/***********************************************************************
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* RtlAcquireResourceExclusive (NTDLL.@)
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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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RtlEnterCriticalSection( &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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RtlLeaveCriticalSection( &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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RtlLeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlAcquireResourceShared (NTDLL.@)
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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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RtlEnterCriticalSection( &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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RtlLeaveCriticalSection( &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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RtlLeaveCriticalSection( &rwl->rtlCS );
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return retVal;
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}
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/***********************************************************************
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* RtlReleaseResource (NTDLL.@)
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*/
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void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
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{
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RtlEnterCriticalSection( &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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NtReleaseSemaphore( 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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NtReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
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}
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}
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}
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RtlLeaveCriticalSection( &rwl->rtlCS );
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}
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/***********************************************************************
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* RtlDumpResource (NTDLL.@)
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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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TRACE("(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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TRACE("(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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TRACE("(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 WINAPIV DbgPrint(LPCSTR fmt, ...)
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{
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char buf[512];
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va_list args;
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va_start(args, fmt);
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vsprintf(buf,fmt, args);
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va_end(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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{
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RtlEnterCriticalSection( &peb_lock );
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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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{
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RtlLeaveCriticalSection( &peb_lock );
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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.@]
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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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* RtlGetNtProductType [NTDLL.@]
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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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* _chkstk [NTDLL.@]
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*
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* Glorified "enter xxxx".
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*/
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void WINAPI NTDLL_chkstk( CONTEXT86 *context )
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{
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context->Esp -= context->Eax;
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}
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/**************************************************************************
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* _alloca_probe [NTDLL.@]
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*
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* Glorified "enter xxxx".
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*/
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void WINAPI NTDLL_alloca_probe( CONTEXT86 *context )
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{
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context->Esp -= context->Eax;
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}
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/**************************************************************************
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* RtlDosPathNameToNtPathName_U [NTDLL.@]
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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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FIXME("(%s,%p,%08lx,%08lx)\n",debugstr_w(from),us,x2,x3);
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if (us) RtlCreateUnicodeString( us, from );
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return TRUE;
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}
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/***********************************************************************
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* RtlImageNtHeader (NTDLL.@)
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*/
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PIMAGE_NT_HEADERS WINAPI RtlImageNtHeader(HMODULE hModule)
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{
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IMAGE_NT_HEADERS *ret = NULL;
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IMAGE_DOS_HEADER *dos = (IMAGE_DOS_HEADER *)hModule;
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if (dos->e_magic == IMAGE_DOS_SIGNATURE)
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{
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ret = (IMAGE_NT_HEADERS *)((char *)dos + dos->e_lfanew);
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if (ret->Signature != IMAGE_NT_SIGNATURE) ret = NULL;
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}
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return ret;
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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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/******************************************************************************
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* RtlInitializeGenericTable [NTDLL.@]
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*/
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DWORD WINAPI RtlInitializeGenericTable(void)
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{
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FIXME("\n");
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return 0;
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}
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/******************************************************************************
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* RtlInitializeBitMap [NTDLL.@]
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*
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*/
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NTSTATUS WINAPI RtlInitializeBitMap(DWORD x1,DWORD x2,DWORD x3)
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{
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FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
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return 0;
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}
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/******************************************************************************
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* RtlSetBits [NTDLL.@]
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*
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*/
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NTSTATUS WINAPI RtlSetBits(DWORD x1,DWORD x2,DWORD x3)
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{
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FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
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return 0;
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}
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/******************************************************************************
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* RtlFindClearBits [NTDLL.@]
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*
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*/
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NTSTATUS WINAPI RtlFindClearBits(DWORD x1,DWORD x2,DWORD x3)
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{
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FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
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return 0;
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}
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/******************************************************************************
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* RtlClearBits [NTDLL.@]
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*
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*/
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NTSTATUS WINAPI RtlClearBits(DWORD x1,DWORD x2,DWORD x3)
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{
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FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
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return 0;
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}
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/******************************************************************************
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* RtlCopyMemory [NTDLL]
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*
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*/
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#undef RtlCopyMemory
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VOID WINAPI RtlCopyMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
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{
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memcpy(Destination, Source, Length);
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}
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/******************************************************************************
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* RtlMoveMemory [NTDLL.@]
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*/
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#undef RtlMoveMemory
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VOID WINAPI RtlMoveMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
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{
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memmove(Destination, Source, Length);
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}
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/******************************************************************************
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* RtlFillMemory [NTDLL.@]
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*/
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#undef RtlFillMemory
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VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
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{
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memset(Destination, Fill, Length);
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}
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/******************************************************************************
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* RtlZeroMemory [NTDLL.@]
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*/
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#undef RtlZeroMemory
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VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
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{
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memset(Destination, 0, Length);
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}
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/******************************************************************************
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* RtlCompareMemory [NTDLL.@]
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*/
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SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
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{
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int i;
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for(i=0; (i<Length) && (((LPBYTE)Source1)[i]==((LPBYTE)Source2)[i]); i++);
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return i;
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}
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/******************************************************************************
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* RtlAssert [NTDLL.@]
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*
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* Not implemented in non-debug versions.
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*/
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void WINAPI RtlAssert(LPVOID x1,LPVOID x2,DWORD x3, DWORD x4)
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{
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FIXME("(%p,%p,0x%08lx,0x%08lx),stub\n",x1,x2,x3,x4);
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}
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