reactos/subsystems/win32/win32k/include/object.h

   1 #ifndef _WIN32K_OBJECT_H
   2 #define _WIN32K_OBJECT_H
   3
   4 #include "gdiobj.h"
   5 #include "bitmaps.h"
   6 #include "pen.h"
   7
   8 #define FIRST_USER_HANDLE 0x0020  /* first possible value for low word of user handle */
   9 #define LAST_USER_HANDLE  0xffef  /* last possible value for low word of user handle */
  10
  11 #define HANDLEENTRY_INDESTROY 1
  12
  13 typedef struct _USER_HANDLE_ENTRY
  14 {
  15     void          *ptr;          /* pointer to object */
  16     union
  17     {
  18         PVOID pi;
  19         PTHREADINFO pti;          // pointer to Win32ThreadInfo
  20         PPROCESSINFO ppi;         // pointer to W32ProcessInfo
  21     };
  22     unsigned char  type;         /* object type (0 if free) */
  23     unsigned char  flags;
  24     unsigned short generation;   /* generation counter */
  25 } USER_HANDLE_ENTRY, * PUSER_HANDLE_ENTRY;
  26
  27
  28
  29 typedef struct _USER_HANDLE_TABLE
  30 {
  31    PUSER_HANDLE_ENTRY handles;
  32    PUSER_HANDLE_ENTRY freelist;
  33    int nb_handles;
  34    int allocated_handles;
  35 } USER_HANDLE_TABLE, * PUSER_HANDLE_TABLE;
  36
  37
  38
  39 typedef enum _USER_OBJECT_TYPE
  40 {
  41   otFree = 0,
  42   otWindow,
  43   otMenu,
  44   otCursorIcon,
  45   otSMWP,
  46   otHook,
  47   otClipBoardData,
  48   otCallProc,
  49   otAccel,
  50   otDDEaccess,
  51   otDDEconv,
  52   otDDExact,
  53   otMonitor,
  54   otKBDlayout,
  55   otKBDfile,
  56   otEvent,
  57   otTimer,
  58   otInputContext,
  59   otHidData,
  60   otDeviceInfo,
  61   otTouchInput,
  62   otGestureInfo
  63 } USER_OBJECT_TYPE;
  64
  65 typedef struct _USER_REFERENCE_ENTRY
  66 {
  67    SINGLE_LIST_ENTRY Entry;
  68    PVOID obj;
  69 } USER_REFERENCE_ENTRY, *PUSER_REFERENCE_ENTRY;
  70
  71 #include <malloc.h>
  72
  73 #define USER_ASSERT(exp,file,line) \
  74     if (!(exp)) {RtlAssert(#exp,(PVOID)file,line,"");}
  75
  76 static __inline VOID
  77 UserAssertLastRef(PVOID obj, const char *file, int line)
  78 {
  79     PTHREADINFO W32Thread;
  80     PSINGLE_LIST_ENTRY ReferenceEntry;
  81     PUSER_REFERENCE_ENTRY UserReferenceEntry;
  82
  83     USER_ASSERT(obj != NULL, file, line);
  84     W32Thread = PsGetCurrentThreadWin32Thread();
  85     USER_ASSERT(W32Thread != NULL, file, line);
  86     ReferenceEntry = W32Thread->ReferencesList.Next;
  87     USER_ASSERT(ReferenceEntry != NULL, file, line);
  88     UserReferenceEntry = CONTAINING_RECORD(ReferenceEntry, USER_REFERENCE_ENTRY, Entry);
  89     USER_ASSERT(UserReferenceEntry != NULL, file, line);
  90     USER_ASSERT(obj == UserReferenceEntry->obj, file, line);
  91 }
  92 #define ASSERT_LAST_REF(_obj_) UserAssertLastRef(_obj,__FILE__,__LINE__)
  93
  94 #undef USER_ASSERT
  95
  96 extern PUSER_HANDLE_TABLE gHandleTable;
  97 VOID FASTCALL UserReferenceObject(PVOID obj);
  98 PVOID FASTCALL UserReferenceObjectByHandle(HANDLE handle, USER_OBJECT_TYPE type);
  99 BOOL FASTCALL UserDereferenceObject(PVOID obj);
 100 PVOID FASTCALL UserCreateObject(PUSER_HANDLE_TABLE ht, struct _DESKTOP* pDesktop, HANDLE* h,USER_OBJECT_TYPE type , ULONG size);
 101 BOOL FASTCALL UserDeleteObject(HANDLE h, USER_OBJECT_TYPE type );
 102 PVOID UserGetObject(PUSER_HANDLE_TABLE ht, HANDLE handle, USER_OBJECT_TYPE type );
 103 HANDLE UserAllocHandle(PUSER_HANDLE_TABLE ht, PVOID object, USER_OBJECT_TYPE type );
 104 BOOL FASTCALL UserFreeHandle(PUSER_HANDLE_TABLE ht, HANDLE handle );
 105 PVOID UserGetNextHandle(PUSER_HANDLE_TABLE ht, HANDLE* handle, USER_OBJECT_TYPE type );
 106 PUSER_HANDLE_ENTRY handle_to_entry(PUSER_HANDLE_TABLE ht, HANDLE handle );
 107 BOOL FASTCALL UserCreateHandleTable(VOID);
 108 VOID UserInitHandleTable(PUSER_HANDLE_TABLE ht, PVOID mem, ULONG bytes);
 109
 110
 111 static __inline VOID
 112 UserRefObjectCo(PVOID obj, PUSER_REFERENCE_ENTRY UserReferenceEntry)
 113 {
 114     PTHREADINFO W32Thread;
 115
 116     W32Thread = PsGetCurrentThreadWin32Thread();
 117     ASSERT(W32Thread != NULL);
 118     ASSERT(UserReferenceEntry != NULL);
 119     UserReferenceEntry->obj = obj;
 120     UserReferenceObject(obj);
 121     PushEntryList(&W32Thread->ReferencesList, &UserReferenceEntry->Entry);
 122 }
 123
 124 static __inline VOID
 125 UserDerefObjectCo(PVOID obj)
 126 {
 127     PTHREADINFO W32Thread;
 128     PSINGLE_LIST_ENTRY ReferenceEntry;
 129     PUSER_REFERENCE_ENTRY UserReferenceEntry;
 130
 131     ASSERT(obj != NULL);
 132     W32Thread = PsGetCurrentThreadWin32Thread();
 133     ASSERT(W32Thread != NULL);
 134     ReferenceEntry = PopEntryList(&W32Thread->ReferencesList);
 135     ASSERT(ReferenceEntry != NULL);
 136     UserReferenceEntry = CONTAINING_RECORD(ReferenceEntry, USER_REFERENCE_ENTRY, Entry);
 137     ASSERT(UserReferenceEntry != NULL);
 138
 139     ASSERT(obj == UserReferenceEntry->obj);
 140     UserDereferenceObject(obj);
 141 }
 142
 143 VOID  FASTCALL CreateStockObjects (VOID);
 144 VOID  FASTCALL CreateSysColorObjects (VOID);
 145
 146 PPOINT FASTCALL GDI_Bezier (const POINT *Points, INT count, PINT nPtsOut);
 147
 148 #endif /* _WIN32K_OBJECT_H */
 149
 150 /* EOF */