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 = {{0,0,NULL},
  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 OBJECT_TYPE FileObjectType = {{0,0,NULL},
  38                                 0,
  39                                 0,
  40                                 ULONG_MAX,
  41                                 ULONG_MAX,
  42                                 sizeof(FILE_OBJECT),
  43                                 0,
  44                                NULL,
  45                                NULL,
  46                                NULL,
  47                                NULL,
  48                                NULL,
  49                                NULL,
  50                                NULL,
  51                                NULL,
  52                                };
  53
  54
  55 /* FUNCTIONS ****************************************************************/
  56
  57 VOID IoInit(VOID)
  58 {
  59    OBJECT_ATTRIBUTES attr;
  60    HANDLE handle;
  61    UNICODE_STRING string;
  62    ANSI_STRING astring;
  63
  64    /*
  65     * Register iomgr types
  66     */
  67    RtlInitAnsiString(&astring,"Device");
  68    RtlAnsiStringToUnicodeString(&DeviceObjectType.TypeName,&astring,TRUE);
  69    ObRegisterType(OBJTYP_DEVICE,&DeviceObjectType);
  70
  71    RtlInitAnsiString(&astring,"File");
  72    RtlAnsiStringToUnicodeString(&FileObjectType.TypeName,&astring,TRUE);
  73    ObRegisterType(OBJTYP_FILE,&FileObjectType);
  74
  75    /*
  76     * Create the device directory
  77     */
  78    RtlInitAnsiString(&astring,"\\Device");
  79    RtlAnsiStringToUnicodeString(&string,&astring,TRUE);
  80    InitializeObjectAttributes(&attr,&string,0,NULL,NULL);
  81    ZwCreateDirectoryObject(&handle,0,&attr);
  82
  83    IoInitCancelHandling();
  84    IoInitSymbolicLinkImplementation();
  85 }