sdk/include/ddk/ntrxdef.h

   1 #ifndef _RX_NTDEFS_DEFINED_
   2 #define _RX_NTDEFS_DEFINED_
   3
   4 #define INLINE __inline
   5 #ifndef INVALID_HANDLE_VALUE
   6 #define INVALID_HANDLE_VALUE ((HANDLE)-1)
   7 #endif
   8
   9 #ifndef MINIRDR__NAME
  10 #define RxCaptureFcb PFCB __C_Fcb = (PFCB)(RxContext->pFcb)
  11 #define RxCaptureFobx PFOBX __C_Fobx = (PFOBX)(RxContext->pFobx)
  12 #else
  13 #define RxCaptureFcb PMRX_FCB __C_Fcb = (RxContext->pFcb)
  14 #define RxCaptureFobx PMRX_FOBX __C_Fobx = (RxContext->pFobx)
  15 #endif
  16
  17 #define RxCaptureParamBlock PIO_STACK_LOCATION __C_IrpSp = RxContext->CurrentIrpSp
  18 #define RxCaptureFileObject PFILE_OBJECT __C_FileObject = __C_IrpSp-> FileObject
  19
  20 #define capFcb __C_Fcb
  21 #define capFobx __C_Fobx
  22 #define capPARAMS __C_IrpSp
  23 #define capFileObject __C_FileObject
  24
  25 #define RxAllocatePoolWithTag ExAllocatePoolWithTag
  26 #define RxFreePool ExFreePool
  27
  28 #define RxIsResourceOwnershipStateExclusive(Resource) (FlagOn((Resource)->Flag, ResourceOwnedExclusive))
  29
  30 #define RxMdlIsLocked(Mdl) ((Mdl)->MdlFlags & MDL_PAGES_LOCKED)
  31 #define RxMdlSourceIsNonPaged(Mdl) ((Mdl)->MdlFlags & MDL_SOURCE_IS_NONPAGED_POOL)
  32
  33 #define RxGetRequestorProcess(RxContext) IoGetRequestorProcess(RxContext->CurrentIrp)
  34
  35 #define RxAdjustAllocationSizeforCC(Fcb)                                                       \
  36 {                                                                                              \
  37     if ((Fcb)->Header.FileSize.QuadPart > (Fcb)->Header.AllocationSize.QuadPart)               \
  38     {                                                                                          \
  39         PMRX_NET_ROOT NetRoot = (Fcb)->pNetRoot;                                               \
  40         ULONGLONG ClusterSize = NetRoot->DiskParameters.ClusterSize;                           \
  41         ULONGLONG FileSize = (Fcb)->Header.FileSize.QuadPart;                                  \
  42         ASSERT(ClusterSize != 0);                                                              \
  43         (Fcb)->Header.AllocationSize.QuadPart = (FileSize + ClusterSize) &~ (ClusterSize - 1); \
  44     }                                                                                          \
  45     ASSERT ((Fcb)->Header.ValidDataLength.QuadPart <= (Fcb)->Header.FileSize.QuadPart);        \
  46 }
  47
  48 #endif