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wine/dlls/ntdll/rtl.c

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/*
* NT basis DLL
*
* This file contains the Rtl* API functions. These should be implementable.
*
* Copyright 1996-1998 Marcus Meissner
* 1999 Alex Korobka
*/
#include <stdlib.h>
#include <string.h>
#include "heap.h"
#include "debugtools.h"
#include "windef.h"
#include "wingdi.h"
#include "winuser.h"
#include "winerror.h"
#include "stackframe.h"
#include "ntddk.h"
#include "winreg.h"
DEFAULT_DEBUG_CHANNEL(ntdll)
/*
* resource functions
*/
/***********************************************************************
* RtlInitializeResource (NTDLL.409)
*
* xxxResource() functions implement multiple-reader-single-writer lock.
* The code is based on information published in WDJ January 1999 issue.
*/
void WINAPI RtlInitializeResource(LPRTL_RWLOCK rwl)
{
if( rwl )
{
rwl->iNumberActive = 0;
rwl->uExclusiveWaiters = 0;
rwl->uSharedWaiters = 0;
rwl->hOwningThreadId = 0;
rwl->dwTimeoutBoost = 0; /* no info on this one, default value is 0 */
InitializeCriticalSection( &rwl->rtlCS );
rwl->hExclusiveReleaseSemaphore = CreateSemaphoreA( NULL, 0, 65535, NULL );
rwl->hSharedReleaseSemaphore = CreateSemaphoreA( NULL, 0, 65535, NULL );
}
}
/***********************************************************************
* RtlDeleteResource (NTDLL.330)
*/
void WINAPI RtlDeleteResource(LPRTL_RWLOCK rwl)
{
if( rwl )
{
EnterCriticalSection( &rwl->rtlCS );
if( rwl->iNumberActive || rwl->uExclusiveWaiters || rwl->uSharedWaiters )
MESSAGE("Deleting active MRSW lock (%p), expect failure\n", rwl );
rwl->hOwningThreadId = 0;
rwl->uExclusiveWaiters = rwl->uSharedWaiters = 0;
rwl->iNumberActive = 0;
CloseHandle( rwl->hExclusiveReleaseSemaphore );
CloseHandle( rwl->hSharedReleaseSemaphore );
LeaveCriticalSection( &rwl->rtlCS );
DeleteCriticalSection( &rwl->rtlCS );
}
}
/***********************************************************************
* RtlAcquireResourceExclusive (NTDLL.256)
*/
BYTE WINAPI RtlAcquireResourceExclusive(LPRTL_RWLOCK rwl, BYTE fWait)
{
BYTE retVal = 0;
if( !rwl ) return 0;
start:
EnterCriticalSection( &rwl->rtlCS );
if( rwl->iNumberActive == 0 ) /* lock is free */
{
rwl->iNumberActive = -1;
retVal = 1;
}
else if( rwl->iNumberActive < 0 ) /* exclusive lock in progress */
{
if( rwl->hOwningThreadId == GetCurrentThreadId() )
{
retVal = 1;
rwl->iNumberActive--;
goto done;
}
wait:
if( fWait )
{
rwl->uExclusiveWaiters++;
LeaveCriticalSection( &rwl->rtlCS );
if( WaitForSingleObject( rwl->hExclusiveReleaseSemaphore, INFINITE ) == WAIT_FAILED )
goto done;
goto start; /* restart the acquisition to avoid deadlocks */
}
}
else /* one or more shared locks are in progress */
if( fWait )
goto wait;
if( retVal == 1 )
rwl->hOwningThreadId = GetCurrentThreadId();
done:
LeaveCriticalSection( &rwl->rtlCS );
return retVal;
}
/***********************************************************************
* RtlAcquireResourceShared (NTDLL.257)
*/
BYTE WINAPI RtlAcquireResourceShared(LPRTL_RWLOCK rwl, BYTE fWait)
{
DWORD dwWait = WAIT_FAILED;
BYTE retVal = 0;
if( !rwl ) return 0;
start:
EnterCriticalSection( &rwl->rtlCS );
if( rwl->iNumberActive < 0 )
{
if( rwl->hOwningThreadId == GetCurrentThreadId() )
{
rwl->iNumberActive--;
retVal = 1;
goto done;
}
if( fWait )
{
rwl->uSharedWaiters++;
LeaveCriticalSection( &rwl->rtlCS );
if( (dwWait = WaitForSingleObject( rwl->hSharedReleaseSemaphore, INFINITE )) == WAIT_FAILED )
goto done;
goto start;
}
}
else
{
if( dwWait != WAIT_OBJECT_0 ) /* otherwise RtlReleaseResource() has already done it */
rwl->iNumberActive++;
retVal = 1;
}
done:
LeaveCriticalSection( &rwl->rtlCS );
return retVal;
}
/***********************************************************************
* RtlReleaseResource (NTDLL.471)
*/
void WINAPI RtlReleaseResource(LPRTL_RWLOCK rwl)
{
EnterCriticalSection( &rwl->rtlCS );
if( rwl->iNumberActive > 0 ) /* have one or more readers */
{
if( --rwl->iNumberActive == 0 )
{
if( rwl->uExclusiveWaiters )
{
wake_exclusive:
rwl->uExclusiveWaiters--;
ReleaseSemaphore( rwl->hExclusiveReleaseSemaphore, 1, NULL );
}
}
}
else
if( rwl->iNumberActive < 0 ) /* have a writer, possibly recursive */
{
if( ++rwl->iNumberActive == 0 )
{
rwl->hOwningThreadId = 0;
if( rwl->uExclusiveWaiters )
goto wake_exclusive;
else
if( rwl->uSharedWaiters )
{
UINT n = rwl->uSharedWaiters;
rwl->iNumberActive = rwl->uSharedWaiters; /* prevent new writers from joining until
* all queued readers have done their thing */
rwl->uSharedWaiters = 0;
ReleaseSemaphore( rwl->hSharedReleaseSemaphore, n, NULL );
}
}
}
LeaveCriticalSection( &rwl->rtlCS );
}
/***********************************************************************
* RtlDumpResource (NTDLL.340)
*/
void WINAPI RtlDumpResource(LPRTL_RWLOCK rwl)
{
if( rwl )
{
MESSAGE("RtlDumpResource(%p):\n\tactive count = %i\n\twaiting readers = %i\n\twaiting writers = %i\n",
rwl, rwl->iNumberActive, rwl->uSharedWaiters, rwl->uExclusiveWaiters );
if( rwl->iNumberActive )
MESSAGE("\towner thread = %08x\n", rwl->hOwningThreadId );
}
}
/*
* heap functions
*/
/******************************************************************************
* RtlCreateHeap [NTDLL]
*/
HANDLE WINAPI RtlCreateHeap(
ULONG Flags,
PVOID BaseAddress,
ULONG SizeToReserve,
ULONG SizeToCommit,
PVOID Unknown,
PRTL_HEAP_DEFINITION Definition)
{
FIXME("(0x%08lx, %p, 0x%08lx, 0x%08lx, %p, %p) semi-stub\n",
Flags, BaseAddress, SizeToReserve, SizeToCommit, Unknown, Definition);
return HeapCreate ( Flags, SizeToCommit, SizeToReserve);
}
/******************************************************************************
* RtlAllocateHeap [NTDLL]
*/
PVOID WINAPI RtlAllocateHeap(
HANDLE Heap,
ULONG Flags,
ULONG Size)
{
TRACE("(0x%08x, 0x%08lx, 0x%08lx) semi stub\n",
Heap, Flags, Size);
return HeapAlloc(Heap, Flags, Size);
}
/******************************************************************************
* RtlFreeHeap [NTDLL]
*/
BOOLEAN WINAPI RtlFreeHeap(
HANDLE Heap,
ULONG Flags,
PVOID Address)
{
TRACE("(0x%08x, 0x%08lx, %p) semi stub\n",
Heap, Flags, Address);
return HeapFree(Heap, Flags, Address);
}
/******************************************************************************
* RtlDestroyHeap [NTDLL]
*
* FIXME: prototype guessed
*/
BOOLEAN WINAPI RtlDestroyHeap(
HANDLE Heap)
{
TRACE("(0x%08x) semi stub\n", Heap);
return HeapDestroy(Heap);
}
/*
* misc functions
*/
/******************************************************************************
* DbgPrint [NTDLL]
*/
void WINAPIV DbgPrint(LPCSTR fmt, ...) {
char buf[512];
va_list args;
va_start(args, fmt);
wvsprintfA(buf,fmt, args);
va_end(args);
MESSAGE("DbgPrint says: %s",buf);
/* hmm, raise exception? */
}
/******************************************************************************
* RtlAcquirePebLock [NTDLL]
*/
VOID WINAPI RtlAcquirePebLock(void) {
FIXME("()\n");
/* enter critical section ? */
}
/******************************************************************************
* RtlReleasePebLock [NTDLL]
*/
VOID WINAPI RtlReleasePebLock(void) {
FIXME("()\n");
/* leave critical section ? */
}
/******************************************************************************
* RtlIntegerToChar [NTDLL]
*/
DWORD WINAPI RtlIntegerToChar(DWORD x1,DWORD x2,DWORD x3,DWORD x4) {
FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4);
return 0;
}
/******************************************************************************
* RtlSetEnvironmentVariable [NTDLL]
*/
DWORD WINAPI RtlSetEnvironmentVariable(DWORD x1,PUNICODE_STRING key,PUNICODE_STRING val) {
FIXME("(0x%08lx,%s,%s),stub!\n",x1,debugstr_w(key->Buffer),debugstr_w(val->Buffer));
return 0;
}
/******************************************************************************
* RtlNewSecurityObject [NTDLL]
*/
DWORD WINAPI RtlNewSecurityObject(DWORD x1,DWORD x2,DWORD x3,DWORD x4,DWORD x5,DWORD x6) {
FIXME("(0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx,0x%08lx),stub!\n",x1,x2,x3,x4,x5,x6);
return 0;
}
/******************************************************************************
* RtlDeleteSecurityObject [NTDLL]
*/
DWORD WINAPI RtlDeleteSecurityObject(DWORD x1) {
FIXME("(0x%08lx),stub!\n",x1);
return 0;
}
/**************************************************************************
* RtlNormalizeProcessParams [NTDLL.441]
*/
LPVOID WINAPI RtlNormalizeProcessParams(LPVOID x)
{
FIXME("(%p), stub\n",x);
return x;
}
/**************************************************************************
* RtlGetNtProductType [NTDLL.390]
*/
BOOLEAN WINAPI RtlGetNtProductType(LPDWORD type)
{
FIXME("(%p): stub\n", type);
*type=3; /* dunno. 1 for client, 3 for server? */
return 1;
}
/**************************************************************************
* NTDLL_chkstk [NTDLL.862]
* NTDLL_alloca_probe [NTDLL.861]
* Glorified "enter xxxx".
*/
void WINAPI NTDLL_chkstk( CONTEXT86 *context )
{
ESP_reg(context) -= EAX_reg(context);
}
void WINAPI NTDLL_alloca_probe( CONTEXT86 *context )
{
ESP_reg(context) -= EAX_reg(context);
}
/******************************************************************************
* RtlExtendedLargeIntegerDivide [NTDLL.359]
*/
INT WINAPI RtlExtendedLargeIntegerDivide(
LARGE_INTEGER dividend,
DWORD divisor,
LPDWORD rest
) {
#if SIZEOF_LONG_LONG==8
long long x1 = *(long long*)&dividend;
if (*rest)
*rest = x1 % divisor;
return x1/divisor;
#else
FIXME("((%ld<<32)+%ld,%ld,%p), implement this using normal integer arithmetic!\n",
dividend.s.HighPart,dividend.s.LowPart,divisor,rest);
return 0;
#endif
}
/******************************************************************************
* RtlExtendedIntegerMultiply [NTDLL.359]
* Note: This even works, since gcc returns 64bit values in eax/edx just like
* the caller expects. However... The relay code won't grok this I think.
*/
LARGE_INTEGER WINAPI RtlExtendedIntegerMultiply(
LARGE_INTEGER factor1,
INT factor2)
{
#if SIZEOF_LONG_LONG==8
long long result = (*(long long*)&factor1) * factor2;
return (*(LARGE_INTEGER*)&result);
#else
LARGE_INTEGER result;
result.s.HighPart = 0;
result.s.LowPart = 0;
FIXME("((%ld<<32)+%ld,%d), implement this using normal integer arithmetic!\n",
factor1.s.HighPart,factor1.s.LowPart,factor2);
return result;
#endif
}
/**************************************************************************
* RtlDosPathNameToNtPathName_U [NTDLL.338]
*
* FIXME: convert to UNC or whatever is expected here
*/
BOOLEAN WINAPI RtlDosPathNameToNtPathName_U(
LPWSTR from,PUNICODE_STRING us,DWORD x2,DWORD x3)
{
LPSTR fromA = HEAP_strdupWtoA(GetProcessHeap(),0,from);
FIXME("(%s,%p,%08lx,%08lx)\n",fromA,us,x2,x3);
if (us)
RtlInitUnicodeString(us,HEAP_strdupW(GetProcessHeap(),0,from));
return TRUE;
}
/******************************************************************************
* RtlCreateEnvironment [NTDLL]
*/
DWORD WINAPI RtlCreateEnvironment(DWORD x1,DWORD x2) {
FIXME("(0x%08lx,0x%08lx),stub!\n",x1,x2);
return 0;
}
/******************************************************************************
* RtlDestroyEnvironment [NTDLL]
*/
DWORD WINAPI RtlDestroyEnvironment(DWORD x) {
FIXME("(0x%08lx),stub!\n",x);
return 0;
}
/******************************************************************************
* RtlQueryEnvironmentVariable_U [NTDLL]
*/
DWORD WINAPI RtlQueryEnvironmentVariable_U(DWORD x1,PUNICODE_STRING key,PUNICODE_STRING val) {
FIXME("(0x%08lx,%s,%p),stub!\n",x1,debugstr_w(key->Buffer),val);
return 0;
}
/******************************************************************************
* RtlInitializeGenericTable [NTDLL]
*/
DWORD WINAPI RtlInitializeGenericTable(void)
{
FIXME("\n");
return 0;
}
/******************************************************************************
* RtlInitializeBitMap [NTDLL]
*
*/
NTSTATUS WINAPI RtlInitializeBitMap(DWORD x1,DWORD x2,DWORD x3)
{
FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
return 0;
}
/******************************************************************************
* RtlSetBits [NTDLL]
*
*/
NTSTATUS WINAPI RtlSetBits(DWORD x1,DWORD x2,DWORD x3)
{
FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
return 0;
}
/******************************************************************************
* RtlFindClearBits [NTDLL]
*
*/
NTSTATUS WINAPI RtlFindClearBits(DWORD x1,DWORD x2,DWORD x3)
{
FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
return 0;
}
/******************************************************************************
* RtlClearBits [NTDLL]
*
*/
NTSTATUS WINAPI RtlClearBits(DWORD x1,DWORD x2,DWORD x3)
{
FIXME("(0x%08lx,0x%08lx,0x%08lx),stub\n",x1,x2,x3);
return 0;
}
/******************************************************************************
* RtlCopyMemory [NTDLL]
*
*/
#undef RtlCopyMemory
VOID WINAPI RtlCopyMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
{
memcpy(Destination, Source, Length);
}
/******************************************************************************
* RtlMoveMemory [NTDLL]
*/
#undef RtlMoveMemory
VOID WINAPI RtlMoveMemory( VOID *Destination, CONST VOID *Source, SIZE_T Length )
{
memmove(Destination, Source, Length);
}
/******************************************************************************
* RtlFillMemory [NTDLL]
*/
#undef RtlFillMemory
VOID WINAPI RtlFillMemory( VOID *Destination, SIZE_T Length, BYTE Fill )
{
memset(Destination, Fill, Length);
}
/******************************************************************************
* RtlZeroMemory [NTDLL]
*/
#undef RtlZeroMemory
VOID WINAPI RtlZeroMemory( VOID *Destination, SIZE_T Length )
{
memset(Destination, 0, Length);
}
/******************************************************************************
* RtlCompareMemory [NTDLL]
*/
SIZE_T WINAPI RtlCompareMemory( const VOID *Source1, const VOID *Source2, SIZE_T Length)
{
int i;
for(i=0; (i<Length) && (((LPBYTE)Source1)[i]==((LPBYTE)Source2)[i]); i++);
return i;
}
/******************************************************************************
* RtlAssert [NTDLL]
*
* Not implemented in non-debug versions.
*/
void WINAPI RtlAssert(LPVOID x1,LPVOID x2,DWORD x3, DWORD x4)
{
FIXME("(%p,%p,0x%08lx,0x%08lx),stub\n",x1,x2,x3,x4);
}
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