mirror of
https://github.com/reactos/reactos.git
synced 2025-01-01 12:04:51 +00:00
111 lines
2.7 KiB
C
111 lines
2.7 KiB
C
/* INCLUDES ******************************************************************/
|
|
|
|
#include <ddk/ntddk.h>
|
|
#include <ddk/ntifs.h>
|
|
#include <internal/mm.h>
|
|
#include <internal/cc.h>
|
|
#include <internal/pool.h>
|
|
#include <internal/io.h>
|
|
#include <ntos/minmax.h>
|
|
|
|
#define NDEBUG
|
|
#include <internal/debug.h>
|
|
|
|
/* GLOBALS *******************************************************************/
|
|
|
|
/* FUNCTIONS *****************************************************************/
|
|
|
|
/**********************************************************************
|
|
* NAME INTERNAL
|
|
* CcMdlReadCompleteDev@8
|
|
*
|
|
* DESCRIPTION
|
|
*
|
|
* ARGUMENTS
|
|
* MdlChain
|
|
* DeviceObject
|
|
*
|
|
* RETURN VALUE
|
|
* None.
|
|
*
|
|
* NOTE
|
|
* Used by CcMdlReadComplete@8 and FsRtl
|
|
*/
|
|
VOID STDCALL
|
|
CcMdlReadCompleteDev (IN PMDL MdlChain,
|
|
IN PDEVICE_OBJECT DeviceObject)
|
|
{
|
|
UNIMPLEMENTED;
|
|
}
|
|
|
|
|
|
/**********************************************************************
|
|
* NAME EXPORTED
|
|
* CcMdlReadComplete@8
|
|
*
|
|
* DESCRIPTION
|
|
*
|
|
* ARGUMENTS
|
|
*
|
|
* RETURN VALUE
|
|
* None.
|
|
*
|
|
* NOTE
|
|
* From Bo Branten's ntifs.h v13.
|
|
*/
|
|
VOID STDCALL
|
|
CcMdlReadComplete (IN PFILE_OBJECT FileObject,
|
|
IN PMDL MdlChain)
|
|
{
|
|
PDEVICE_OBJECT DeviceObject = NULL;
|
|
|
|
DeviceObject = IoGetRelatedDeviceObject (FileObject);
|
|
/* FIXME: try fast I/O first */
|
|
CcMdlReadCompleteDev (MdlChain,
|
|
DeviceObject);
|
|
}
|
|
|
|
VOID STDCALL
|
|
CcSetFileSizes (IN PFILE_OBJECT FileObject,
|
|
IN PCC_FILE_SIZES FileSizes)
|
|
{
|
|
KIRQL oldirql;
|
|
PBCB Bcb;
|
|
PLIST_ENTRY current_entry;
|
|
PCACHE_SEGMENT current;
|
|
|
|
DPRINT("CcSetFileSizes(FileObject %x, FileSizes %x)\n",
|
|
FileObject, FileSizes);
|
|
DPRINT("AllocationSize %d, FileSize %d, ValidDataLength %d\n",
|
|
(ULONG)FileSizes->AllocationSize.QuadPart,
|
|
(ULONG)FileSizes->FileSize.QuadPart,
|
|
(ULONG)FileSizes->ValidDataLength.QuadPart);
|
|
|
|
Bcb = ((REACTOS_COMMON_FCB_HEADER*)FileObject->FsContext)->Bcb;
|
|
|
|
DPRINT("Bcb 0x%.08x\n", Bcb);
|
|
|
|
KeAcquireSpinLock(&Bcb->BcbLock, &oldirql);
|
|
|
|
if (FileSizes->AllocationSize.QuadPart < Bcb->AllocationSize.QuadPart)
|
|
{
|
|
current_entry = Bcb->BcbSegmentListHead.Flink;
|
|
while (current_entry != &Bcb->BcbSegmentListHead)
|
|
{
|
|
current = CONTAINING_RECORD(current_entry, CACHE_SEGMENT,
|
|
BcbSegmentListEntry);
|
|
current_entry = current_entry->Flink;
|
|
if (current->FileOffset > FileSizes->AllocationSize.QuadPart)
|
|
{
|
|
KeReleaseSpinLock(&Bcb->BcbLock, oldirql);
|
|
CcRosFreeCacheSegment(Bcb, current);
|
|
KeAcquireSpinLock(&Bcb->BcbLock, &oldirql);
|
|
current_entry = Bcb->BcbSegmentListHead.Flink;
|
|
}
|
|
}
|
|
}
|
|
Bcb->AllocationSize = FileSizes->AllocationSize;
|
|
Bcb->FileSize = FileSizes->FileSize;
|
|
KeReleaseSpinLock(&Bcb->BcbLock, oldirql);
|
|
}
|
|
|