subsystems/win32/win32k/ntuser/ntuser.c

   1 /*
   2  *  COPYRIGHT:        See COPYING in the top level directory
   3  *  PROJECT:          ReactOS kernel
   4  *  PURPOSE:          ntuser init. and main funcs.
   5  *  FILE:             subsystems/win32/win32k/ntuser/ntuser.c
   6  *  REVISION HISTORY:
   7  *       16 July 2005   Created (hardon)
   8  */
   9
  10 /* INCLUDES ******************************************************************/
  11
  12 #include <win32k.h>
  13
  14 #define NDEBUG
  15 #include <debug.h>
  16
  17 BOOL InitSysParams();
  18
  19 /* GLOBALS *******************************************************************/
  20
  21 ERESOURCE UserLock;
  22 ATOM AtomMessage; // Window Message atom.
  23 ATOM AtomWndObj;  // Window Object atom.
  24 BOOL gbInitialized;
  25 HINSTANCE hModClient = NULL;
  26 BOOL ClientPfnInit = FALSE;
  27
  28 /* PRIVATE FUNCTIONS *********************************************************/
  29
  30 static
  31 NTSTATUS FASTCALL
  32 InitUserAtoms(VOID)
  33 {
  34
  35   gpsi->atomSysClass[ICLS_MENU]      = 32768;
  36   gpsi->atomSysClass[ICLS_DESKTOP]   = 32769;
  37   gpsi->atomSysClass[ICLS_DIALOG]    = 32770;
  38   gpsi->atomSysClass[ICLS_SWITCH]    = 32771;
  39   gpsi->atomSysClass[ICLS_ICONTITLE] = 32772;
  40   gpsi->atomSysClass[ICLS_TOOLTIPS]  = 32774;
  41
  42   /* System Message Atom */
  43   AtomMessage = IntAddGlobalAtom(L"Message", TRUE);
  44   gpsi->atomSysClass[ICLS_HWNDMESSAGE] = AtomMessage;
  45
  46   /* System Context Help Id Atom */
  47   gpsi->atomContextHelpIdProp = IntAddGlobalAtom(L"SysCH", TRUE);
  48
  49   AtomWndObj = IntAddGlobalAtom(L"SysWNDO", TRUE);
  50
  51   return STATUS_SUCCESS;
  52 }
  53
  54 /* FUNCTIONS *****************************************************************/
  55
  56 INIT_FUNCTION
  57 NTSTATUS
  58 NTAPI
  59 InitUserImpl(VOID)
  60 {
  61    NTSTATUS Status;
  62
  63    ExInitializeResourceLite(&UserLock);
  64
  65    if (!UserCreateHandleTable())
  66    {
  67       DPRINT1("Failed creating handle table\n");
  68       return STATUS_INSUFFICIENT_RESOURCES;
  69    }
  70
  71    Status = InitSessionImpl();
  72    if (!NT_SUCCESS(Status))
  73    {
  74       DPRINT1("Error init session impl.\n");
  75       return Status;
  76    }
  77
  78    InitUserAtoms();
  79
  80    InitSysParams();
  81
  82    return STATUS_SUCCESS;
  83 }
  84
  85 NTSTATUS
  86 NTAPI
  87 InitVideo();
  88
  89 NTSTATUS
  90 NTAPI
  91 UserInitialize(
  92   HANDLE  hPowerRequestEvent,
  93   HANDLE  hMediaRequestEvent)
  94 {
  95     NTSTATUS Status;
  96
  97 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
  98 // Create Object Directory,,, Looks like create workstation. "\\Windows\\WindowStations"
  99 // Create Event for Diconnect Desktop.
 100
 101     /* Initialize Video. */
 102     Status = InitVideo();
 103     if (!NT_SUCCESS(Status)) return Status;
 104
 105 // {
 106 //     DrvInitConsole.
 107 //     DrvChangeDisplaySettings.
 108 //     Update Shared Device Caps.
 109 //     Initialize User Screen.
 110 // }
 111 // Create ThreadInfo for this Thread!
 112 // {
 113
 114     GetW32ThreadInfo();
 115
 116 //    Callback to User32 Client Thread Setup
 117
 118     co_IntClientThreadSetup();
 119
 120 // }
 121 // Set Global SERVERINFO Error flags.
 122 // Load Resources.
 123
 124     NtUserUpdatePerUserSystemParameters(0, TRUE);
 125
 126     CsrInit();
 127
 128     return STATUS_SUCCESS;
 129 }
 130
 131 /*
 132     Called from win32csr.
 133  */
 134 NTSTATUS
 135 APIENTRY
 136 NtUserInitialize(
 137   DWORD   dwWinVersion,
 138   HANDLE  hPowerRequestEvent,
 139   HANDLE  hMediaRequestEvent)
 140 {
 141     NTSTATUS Status;
 142
 143     DPRINT1("Enter NtUserInitialize(%lx, %p, %p)\n",
 144             dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 145
 146     /* Check the Windows version */
 147     if (dwWinVersion != 0)
 148     {
 149         return STATUS_UNSUCCESSFUL;
 150     }
 151
 152     /* Acquire exclusive lock */
 153     UserEnterExclusive();
 154
 155     /* Check if we are already initialized */
 156     if (gbInitialized)
 157     {
 158         UserLeave();
 159         return STATUS_UNSUCCESSFUL;
 160     }
 161
 162 // Initialize Power Request List.
 163 // Initialize Media Change.
 164 // InitializeGreCSRSS();
 165 // {
 166 //    Startup DxGraphics.
 167 //    calls ** IntGdiGetLanguageID() and sets it **.
 168 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 169 // }
 170
 171     /* Initialize USER */
 172     Status = UserInitialize(hPowerRequestEvent, hMediaRequestEvent);
 173
 174     /* Set us as initialized */
 175     gbInitialized = TRUE;
 176
 177     /* Return */
 178     UserLeave();
 179     return Status;
 180 }
 181
 182
 183 /*
 184 RETURN
 185    True if current thread owns the lock (possibly shared)
 186 */
 187 BOOL FASTCALL UserIsEntered(VOID)
 188 {
 189    return ExIsResourceAcquiredExclusiveLite(&UserLock)
 190       || ExIsResourceAcquiredSharedLite(&UserLock);
 191 }
 192
 193 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 194 {
 195    return ExIsResourceAcquiredExclusiveLite(&UserLock);
 196 }
 197
 198 VOID FASTCALL CleanupUserImpl(VOID)
 199 {
 200    ExDeleteResourceLite(&UserLock);
 201 }
 202
 203 VOID FASTCALL UserEnterShared(VOID)
 204 {
 205    KeEnterCriticalRegion();
 206    ExAcquireResourceSharedLite(&UserLock, TRUE);
 207 }
 208
 209 VOID FASTCALL UserEnterExclusive(VOID)
 210 {
 211    KeEnterCriticalRegion();
 212    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 213 }
 214
 215 VOID FASTCALL UserLeave(VOID)
 216 {
 217    ExReleaseResourceLite(&UserLock);
 218    KeLeaveCriticalRegion();
 219 }