reactos/ntoskrnl/io/iomgr.c

   1 /*
   2  * COPYRIGHT:            See COPYING in the top level directory
   3  * PROJECT:              ReactOS kernel
   4  * FILE:                 ntoskrnl/io/iomgr.c
   5  * PURPOSE:              Initializes the io manager
   6  * PROGRAMMER:           David Welch (welch@mcmail.com)
   7  * REVISION HISTORY:
   8  *             29/07/98: Created
   9  */
  10
  11 /* INCLUDES ****************************************************************/
  12
  13 #include <windows.h>
  14 #include <ddk/ntddk.h>
  15 #include <internal/kernel.h>
  16 #include <internal/objmgr.h>
  17
  18 /* GLOBALS *******************************************************************/
  19
  20 OBJECT_TYPE DeviceObjectType = {{NULL,0,0},
  21                                 0,
  22                                 0,
  23                                 ULONG_MAX,
  24                                 ULONG_MAX,
  25                                 sizeof(DEVICE_OBJECT),
  26                                 0,
  27                                NULL,
  28                                NULL,
  29                                NULL,
  30                                NULL,
  31                                NULL,
  32                                NULL,
  33                                NULL,
  34                                NULL,
  35                                };
  36
  37
  38 /* FUNCTIONS ****************************************************************/
  39
  40 VOID IoInit(VOID)
  41 {
  42    OBJECT_ATTRIBUTES attr;
  43    HANDLE handle;
  44    UNICODE_STRING string;
  45    ANSI_STRING astring;
  46
  47    ObRegisterType(OBJTYP_DEVICE,&DeviceObjectType);
  48
  49    RtlInitAnsiString(&astring,"\\Device");
  50    RtlAnsiStringToUnicodeString(&string,&astring,TRUE);
  51    InitializeObjectAttributes(&attr,&string,0,NULL,NULL);
  52    ZwCreateDirectoryObject(&handle,0,&attr);
  53
  54    IoInitCancelHandling();
  55 }