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- Fixed the directory index of a file for FATX.

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- Replaced VfatSupersedeFile with VfatSetAllocationSizeInformation.  
- Check for the file size before each call to CcMapData. W2K doesn't like it to map over the end of a directory.


svn path=/trunk/; revision=13277
This commit is contained in:
Hartmut Birr 2005-01-25 21:07:32 +00:00
parent 4240c717c7
commit 4211cf6398
1 changed files with 10 additions and 52 deletions
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62
reactos/drivers/fs/vfat/create.c
View file

@ -231,7 +231,12 @@ FindFile (PDEVICE_EXTENSION DeviceExt,
rcFcb = vfatGrabFCBFromTable(DeviceExt, &PathNameU);
if (rcFcb)
{
if(rcFcb->startIndex >= DirContext->DirIndex)
ULONG startIndex = rcFcb->startIndex;
if ((rcFcb->Flags & FCB_IS_FATX_ENTRY) && !vfatFCBIsRoot(Parent))
{
startIndex += 2;
}
if(startIndex >= DirContext->DirIndex)
{
RtlCopyUnicodeString(&DirContext->LongNameU, &rcFcb->LongNameU);
RtlCopyUnicodeString(&DirContext->ShortNameU, &rcFcb->ShortNameU);
@ -239,7 +244,7 @@ FindFile (PDEVICE_EXTENSION DeviceExt,
DirContext->StartIndex = rcFcb->startIndex;
DirContext->DirIndex = rcFcb->dirIndex;
DPRINT("FindFile: new Name %wZ, DirIndex %d (%d)\n",
&DirContext->LongNameU, DirContext->DirIndex, DirContext->StartIndex);
&DirContext->LongNameU, DirContext->DirIndex, DirContext->StartIndex);
Status = STATUS_SUCCESS;
}
else
@ -428,55 +433,6 @@ VfatOpenFile (PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject, PVFATFCB* Pa
return Status;
}
VOID STATIC
VfatSupersedeFile(PDEVICE_EXTENSION DeviceExt, PFILE_OBJECT FileObject,
PVFATFCB Fcb)
{
ULONG Cluster, NextCluster;
NTSTATUS Status;
if (Fcb->Flags & FCB_IS_FATX_ENTRY)
{
Fcb->entry.FatX.FileSize = 0;
Cluster = Fcb->entry.FatX.FirstCluster;
Fcb->entry.FatX.FirstCluster = 0;
}
else
{
Fcb->entry.Fat.FileSize = 0;
if (DeviceExt->FatInfo.FatType == FAT32)
{
Cluster = Fcb->entry.Fat.FirstCluster + Fcb->entry.Fat.FirstClusterHigh * 65536;
}
else
{
Cluster = Fcb->entry.Fat.FirstCluster;
}
Fcb->entry.Fat.FirstCluster = 0;
Fcb->entry.Fat.FirstClusterHigh = 0;
}
Fcb->LastOffset = Fcb->LastCluster = 0;
VfatUpdateEntry (Fcb);
if (Fcb->RFCB.FileSize.QuadPart > 0)
{
Fcb->RFCB.AllocationSize.QuadPart = 0;
Fcb->RFCB.FileSize.QuadPart = 0;
Fcb->RFCB.ValidDataLength.QuadPart = 0;
/* Notify cache manager about the change in file size if caching is
initialized on the file stream */
if (FileObject->SectionObjectPointer->SharedCacheMap != NULL)
{
CcSetFileSizes(FileObject, (PCC_FILE_SIZES)&Fcb->RFCB.AllocationSize);
}
}
while (Cluster != 0xffffffff && Cluster > 1)
{
Status = GetNextCluster (DeviceExt, Cluster, &NextCluster);
WriteCluster (DeviceExt, Cluster, 0);
Cluster = NextCluster;
}
}
NTSTATUS
VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
/*
@ -734,7 +690,9 @@ VfatCreateFile (PDEVICE_OBJECT DeviceObject, PIRP Irp)
/* Supersede the file */
if (RequestedDisposition == FILE_SUPERSEDE)
{
VfatSupersedeFile(DeviceExt, FileObject, pFcb);
LARGE_INTEGER AllocationSize;
AllocationSize.QuadPart = 0LL;
VfatSetAllocationSizeInformation(FileObject, pFcb, DeviceExt, &AllocationSize);
Irp->IoStatus.Information = FILE_SUPERSEDED;
}
else if (RequestedDisposition == FILE_OVERWRITE || RequestedDisposition == FILE_OVERWRITE_IF)