subsystems/win32/win32k/include/object.h

   1 #pragma once
   2
   3 #include "gdiobj.h"
   4 #include "bitmaps.h"
   5 #include "pen.h"
   6
   7 #define FIRST_USER_HANDLE 0x0020  /* first possible value for low word of user handle */
   8 #define LAST_USER_HANDLE  0xffef  /* last possible value for low word of user handle */
   9
  10 #define HANDLEENTRY_INDESTROY 1
  11
  12 typedef struct _USER_HANDLE_ENTRY
  13 {
  14     void          *ptr;          /* pointer to object */
  15     union
  16     {
  17         PVOID pi;
  18         PTHREADINFO pti;          // pointer to Win32ThreadInfo
  19         PPROCESSINFO ppi;         // pointer to W32ProcessInfo
  20     };
  21     unsigned char  type;         /* object type (0 if free) */
  22     unsigned char  flags;
  23     unsigned short generation;   /* generation counter */
  24 } USER_HANDLE_ENTRY, * PUSER_HANDLE_ENTRY;
  25
  26
  27
  28 typedef struct _USER_HANDLE_TABLE
  29 {
  30    PUSER_HANDLE_ENTRY handles;
  31    PUSER_HANDLE_ENTRY freelist;
  32    int nb_handles;
  33    int allocated_handles;
  34 } USER_HANDLE_TABLE, * PUSER_HANDLE_TABLE;
  35
  36
  37
  38 typedef enum _USER_OBJECT_TYPE
  39 {
  40   otFree = 0,
  41   otWindow,
  42   otMenu,
  43   otCursorIcon,
  44   otSMWP,
  45   otHook,
  46   otClipBoardData,
  47   otCallProc,
  48   otAccel,
  49   otDDEaccess,
  50   otDDEconv,
  51   otDDExact,
  52   otMonitor,
  53   otKBDlayout,
  54   otKBDfile,
  55   otEvent,
  56   otTimer,
  57   otInputContext,
  58   otHidData,
  59   otDeviceInfo,
  60   otTouchInput,
  61   otGestureInfo
  62 } USER_OBJECT_TYPE;
  63
  64 typedef struct _USER_REFERENCE_ENTRY
  65 {
  66    SINGLE_LIST_ENTRY Entry;
  67    PVOID obj;
  68 } USER_REFERENCE_ENTRY, *PUSER_REFERENCE_ENTRY;
  69
  70 #include <malloc.h>
  71
  72 #define USER_ASSERT(exp,file,line) \
  73     if (!(exp)) {RtlAssert(#exp,(PVOID)file,line,"");}
  74
  75 static __inline VOID
  76 UserAssertLastRef(PVOID obj, const char *file, int line)
  77 {
  78     PTHREADINFO W32Thread;
  79     PSINGLE_LIST_ENTRY ReferenceEntry;
  80     PUSER_REFERENCE_ENTRY UserReferenceEntry;
  81
  82     USER_ASSERT(obj != NULL, file, line);
  83     W32Thread = PsGetCurrentThreadWin32Thread();
  84     USER_ASSERT(W32Thread != NULL, file, line);
  85     ReferenceEntry = W32Thread->ReferencesList.Next;
  86     USER_ASSERT(ReferenceEntry != NULL, file, line);
  87     UserReferenceEntry = CONTAINING_RECORD(ReferenceEntry, USER_REFERENCE_ENTRY, Entry);
  88     USER_ASSERT(UserReferenceEntry != NULL, file, line);
  89     USER_ASSERT(obj == UserReferenceEntry->obj, file, line);
  90 }
  91 #define ASSERT_LAST_REF(_obj_) UserAssertLastRef(_obj,__FILE__,__LINE__)
  92
  93 #undef USER_ASSERT
  94
  95 extern PUSER_HANDLE_TABLE gHandleTable;
  96 VOID FASTCALL UserReferenceObject(PVOID obj);
  97 PVOID FASTCALL UserReferenceObjectByHandle(HANDLE handle, USER_OBJECT_TYPE type);
  98 BOOL FASTCALL UserDereferenceObject(PVOID obj);
  99 PVOID FASTCALL UserCreateObject(PUSER_HANDLE_TABLE ht, struct _DESKTOP* pDesktop, HANDLE* h,USER_OBJECT_TYPE type , ULONG size);
 100 BOOL FASTCALL UserDeleteObject(HANDLE h, USER_OBJECT_TYPE type );
 101 PVOID UserGetObject(PUSER_HANDLE_TABLE ht, HANDLE handle, USER_OBJECT_TYPE type );
 102 HANDLE UserAllocHandle(PUSER_HANDLE_TABLE ht, PVOID object, USER_OBJECT_TYPE type );
 103 BOOL FASTCALL UserFreeHandle(PUSER_HANDLE_TABLE ht, HANDLE handle );
 104 PVOID UserGetNextHandle(PUSER_HANDLE_TABLE ht, HANDLE* handle, USER_OBJECT_TYPE type );
 105 PUSER_HANDLE_ENTRY handle_to_entry(PUSER_HANDLE_TABLE ht, HANDLE handle );
 106 BOOL FASTCALL UserCreateHandleTable(VOID);
 107 VOID UserInitHandleTable(PUSER_HANDLE_TABLE ht, PVOID mem, ULONG bytes);
 108
 109
 110 static __inline VOID
 111 UserRefObjectCo(PVOID obj, PUSER_REFERENCE_ENTRY UserReferenceEntry)
 112 {
 113     PTHREADINFO W32Thread;
 114
 115     W32Thread = PsGetCurrentThreadWin32Thread();
 116     ASSERT(W32Thread != NULL);
 117     ASSERT(UserReferenceEntry != NULL);
 118     UserReferenceEntry->obj = obj;
 119     UserReferenceObject(obj);
 120     PushEntryList(&W32Thread->ReferencesList, &UserReferenceEntry->Entry);
 121 }
 122
 123 static __inline VOID
 124 UserDerefObjectCo(PVOID obj)
 125 {
 126     PTHREADINFO W32Thread;
 127     PSINGLE_LIST_ENTRY ReferenceEntry;
 128     PUSER_REFERENCE_ENTRY UserReferenceEntry;
 129
 130     ASSERT(obj != NULL);
 131     W32Thread = PsGetCurrentThreadWin32Thread();
 132     ASSERT(W32Thread != NULL);
 133     ReferenceEntry = PopEntryList(&W32Thread->ReferencesList);
 134     ASSERT(ReferenceEntry != NULL);
 135     UserReferenceEntry = CONTAINING_RECORD(ReferenceEntry, USER_REFERENCE_ENTRY, Entry);
 136     ASSERT(UserReferenceEntry != NULL);
 137
 138     ASSERT(obj == UserReferenceEntry->obj);
 139     UserDereferenceObject(obj);
 140 }
 141
 142 VOID  FASTCALL CreateStockObjects (VOID);
 143 VOID  FASTCALL CreateSysColorObjects (VOID);
 144
 145 PPOINT FASTCALL GDI_Bezier (const POINT *Points, INT count, PINT nPtsOut);
 146
 147 /* EOF */