LARGE_INTEGER ByteOffset;
PVOID Buffer;
ULONG BytesPerSector;
+ BOOLEAN PagingIo, CanWait;
ASSERT(IrpContext);
ByteOffset = IrpContext->Stack->Parameters.Read.ByteOffset;
Length = IrpContext->Stack->Parameters.Read.Length;
BytesPerSector = IrpContext->DeviceExt->FatInfo.BytesPerSector;
+ PagingIo = BooleanFlagOn(IrpContext->Irp->Flags, IRP_PAGING_IO);
+ CanWait = BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT);
/* fail if file is a directory and no paged read */
- if (*Fcb->Attributes & FILE_ATTRIBUTE_DIRECTORY && !(IrpContext->Irp->Flags & IRP_PAGING_IO))
+ if (*Fcb->Attributes & FILE_ATTRIBUTE_DIRECTORY && !PagingIo)
{
Status = STATUS_INVALID_PARAMETER;
goto ByeBye;
{
Resource = &IrpContext->DeviceExt->DirResource;
}
- else if (IrpContext->Irp->Flags & IRP_PAGING_IO)
+ else if (PagingIo)
{
Resource = &Fcb->PagingIoResource;
}
Resource = &Fcb->MainResource;
}
- if (!ExAcquireResourceSharedLite(Resource,
- IrpContext->Flags & IRPCONTEXT_CANWAIT ? TRUE : FALSE))
+ if (!ExAcquireResourceSharedLite(Resource, CanWait))
{
Resource = NULL;
Status = STATUS_PENDING;
goto ByeBye;
}
- if (!(IrpContext->Irp->Flags & IRP_PAGING_IO) &&
+ if (!PagingIo &&
FsRtlAreThereCurrentFileLocks(&Fcb->FileLock))
{
if (!FsRtlCheckLockForReadAccess(&Fcb->FileLock, IrpContext->Irp))
}
}
- Buffer = VfatGetUserBuffer(IrpContext->Irp, BooleanFlagOn(IrpContext->Irp->Flags, IRP_PAGING_IO));
+ Buffer = VfatGetUserBuffer(IrpContext->Irp, PagingIo);
if (!(IrpContext->Irp->Flags & (IRP_NOCACHE|IRP_PAGING_IO)) &&
!(Fcb->Flags & (FCB_IS_PAGE_FILE|FCB_IS_VOLUME)))
if (!CcCopyRead(IrpContext->FileObject,
&ByteOffset,
Length,
- (IrpContext->Flags & IRPCONTEXT_CANWAIT) != 0,
+ CanWait,
Buffer,
&IrpContext->Irp->IoStatus))
{
- ASSERT((IrpContext->Flags & IRPCONTEXT_CANWAIT) == 0);
+ ASSERT(!CanWait);
Status = STATUS_PENDING;
goto ByeBye;
}
{
IrpContext->Irp->IoStatus.Status = Status;
if (IrpContext->FileObject->Flags & FO_SYNCHRONOUS_IO &&
- !(IrpContext->Irp->Flags & IRP_PAGING_IO) &&
+ !PagingIo &&
(NT_SUCCESS(Status) || Status == STATUS_END_OF_FILE))
{
IrpContext->FileObject->CurrentByteOffset.QuadPart =
ULONG Length = 0;
PVOID Buffer;
ULONG BytesPerSector;
+ BOOLEAN PagingIo, CanWait;
ASSERT(IrpContext);
DPRINT("<%wZ>\n", &Fcb->PathNameU);
+ PagingIo = BooleanFlagOn(IrpContext->Irp->Flags, IRP_PAGING_IO);
+ CanWait = BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT);
+
/* fail if file is a directory and no paged read */
- if (*Fcb->Attributes & FILE_ATTRIBUTE_DIRECTORY && !(IrpContext->Irp->Flags & IRP_PAGING_IO))
+ if (*Fcb->Attributes & FILE_ATTRIBUTE_DIRECTORY && !PagingIo)
{
Status = STATUS_INVALID_PARAMETER;
goto ByeBye;
goto Metadata;
}
- if (IrpContext->Irp->Flags & IRP_PAGING_IO)
+ if (PagingIo)
{
if (ByteOffset.u.LowPart + Length > Fcb->RFCB.AllocationSize.u.LowPart)
{
{
Resource = &IrpContext->DeviceExt->DirResource;
}
- else if (IrpContext->Irp->Flags & IRP_PAGING_IO)
+ else if (PagingIo)
{
Resource = &Fcb->PagingIoResource;
}
Resource = &Fcb->MainResource;
}
- if ((Fcb->Flags & FCB_IS_PAGE_FILE) || (IrpContext->Irp->Flags & IRP_PAGING_IO))
+ if ((Fcb->Flags & FCB_IS_PAGE_FILE) || PagingIo)
{
- if (!ExAcquireResourceSharedLite(Resource,
- BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
+ if (!ExAcquireResourceSharedLite(Resource, CanWait))
{
Resource = NULL;
Status = STATUS_PENDING;
}
else
{
- if (!ExAcquireResourceExclusiveLite(Resource,
- BooleanFlagOn(IrpContext->Flags, IRPCONTEXT_CANWAIT)))
+ if (!ExAcquireResourceExclusiveLite(Resource, CanWait))
{
Resource = NULL;
Status = STATUS_PENDING;
}
}
- if (!(IrpContext->Irp->Flags & IRP_PAGING_IO) &&
+ if (!PagingIo &&
FsRtlAreThereCurrentFileLocks(&Fcb->FileLock))
{
if (!FsRtlCheckLockForWriteAccess(&Fcb->FileLock, IrpContext->Irp))
}
}
- if (!(IrpContext->Flags & IRPCONTEXT_CANWAIT) && !(Fcb->Flags & FCB_IS_VOLUME))
+ if (!CanWait && !(Fcb->Flags & FCB_IS_VOLUME))
{
if (ByteOffset.u.LowPart + Length > Fcb->RFCB.AllocationSize.u.LowPart)
{
}
}
- Buffer = VfatGetUserBuffer(IrpContext->Irp, BooleanFlagOn(IrpContext->Irp->Flags, IRP_PAGING_IO));
+ Buffer = VfatGetUserBuffer(IrpContext->Irp, PagingIo);
if (!(Fcb->Flags & (FCB_IS_FAT|FCB_IS_VOLUME)) &&
- !(IrpContext->Irp->Flags & IRP_PAGING_IO) &&
+ !PagingIo &&
ByteOffset.u.LowPart + Length > Fcb->RFCB.FileSize.u.LowPart)
{
LARGE_INTEGER AllocationSize;
if (CcCopyWrite(IrpContext->FileObject,
&ByteOffset,
Length,
- TRUE /*(IrpContext->Flags & IRPCONTEXT_CANWAIT) != 0*/,
+ TRUE /*CanWait*/,
Buffer))
{
IrpContext->Irp->IoStatus.Information = Length;
}
else
{
- ASSERT(FALSE /*(IrpContext->Flags & IRPCONTEXT_CANWAIT) == 0*/);
+ ASSERT(FALSE /*!CanWait*/);
Status = STATUS_UNSUCCESSFUL;
}
}
}
Metadata:
- if (!(IrpContext->Irp->Flags & IRP_PAGING_IO) &&
+ if (!PagingIo &&
!(Fcb->Flags & (FCB_IS_FAT|FCB_IS_VOLUME)))
{
if(!(*Fcb->Attributes & FILE_ATTRIBUTE_DIRECTORY))
{
IrpContext->Irp->IoStatus.Status = Status;
if (IrpContext->FileObject->Flags & FO_SYNCHRONOUS_IO &&
- !(IrpContext->Irp->Flags & IRP_PAGING_IO) && NT_SUCCESS(Status))
+ !PagingIo && NT_SUCCESS(Status))
{
IrpContext->FileObject->CurrentByteOffset.QuadPart =
ByteOffset.QuadPart + IrpContext->Irp->IoStatus.Information;