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
  57 NTSTATUS FASTCALL InitUserImpl(VOID)
  58 {
  59    NTSTATUS Status;
  60
  61    ExInitializeResourceLite(&UserLock);
  62
  63    if (!UserCreateHandleTable())
  64    {
  65       DPRINT1("Failed creating handle table\n");
  66       return STATUS_INSUFFICIENT_RESOURCES;
  67    }
  68
  69    Status = InitSessionImpl();
  70    if (!NT_SUCCESS(Status))
  71    {
  72       DPRINT1("Error init session impl.\n");
  73       return Status;
  74    }
  75
  76    InitUserAtoms();
  77
  78    InitSysParams();
  79
  80    return STATUS_SUCCESS;
  81 }
  82
  83 BOOL
  84 InitVideo(ULONG);
  85
  86 NTSTATUS
  87 NTAPI
  88 UserInitialize(
  89   HANDLE  hPowerRequestEvent,
  90   HANDLE  hMediaRequestEvent)
  91 {
  92 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
  93 // Create Object Directory,,, Looks like create workstation. "\\Windows\\WindowStations"
  94 // Create Event for Diconnect Desktop.
  95     InitVideo(0);
  96 // Initialize Video.
  97 // {
  98 //     DrvInitConsole.
  99 //     DrvChangeDisplaySettings.
 100 //     Update Shared Device Caps.
 101 //     Initialize User Screen.
 102 // }
 103 // Create ThreadInfo for this Thread!
 104 // {
 105
 106     GetW32ThreadInfo();
 107
 108 //    Callback to User32 Client Thread Setup
 109
 110     co_IntClientThreadSetup();
 111
 112 // }
 113 // Set Global SERVERINFO Error flags.
 114 // Load Resources.
 115
 116     NtUserUpdatePerUserSystemParameters(0, TRUE);
 117
 118     CsrInit();
 119
 120     return STATUS_SUCCESS;
 121 }
 122
 123 /*
 124     Called from win32csr.
 125  */
 126 NTSTATUS
 127 APIENTRY
 128 NtUserInitialize(
 129   DWORD   dwWinVersion,
 130   HANDLE  hPowerRequestEvent,
 131   HANDLE  hMediaRequestEvent)
 132 {
 133     NTSTATUS Status;
 134
 135     DPRINT1("Enter NtUserInitialize(%lx, %p, %p)\n",
 136             dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 137
 138     /* Check the Windows version */
 139     if (dwWinVersion != 0)
 140     {
 141         return STATUS_UNSUCCESSFUL;
 142     }
 143
 144     /* Acquire exclusive lock */
 145     UserEnterExclusive();
 146
 147     /* Check if we are already initialized */
 148     if (gbInitialized)
 149     {
 150         UserLeave();
 151         return STATUS_UNSUCCESSFUL;
 152     }
 153
 154 // Initialize Power Request List.
 155 // Initialize Media Change.
 156 // InitializeGreCSRSS();
 157 // {
 158 //    Startup DxGraphics.
 159 //    calls ** IntGdiGetLanguageID() and sets it **.
 160 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 161 // }
 162
 163     /* Initialize USER */
 164     Status = UserInitialize(hPowerRequestEvent, hMediaRequestEvent);
 165
 166     /* Set us as initialized */
 167     gbInitialized = TRUE;
 168
 169     /* Return */
 170     UserLeave();
 171     return Status;
 172 }
 173
 174
 175 /*
 176 RETURN
 177    True if current thread owns the lock (possibly shared)
 178 */
 179 BOOL FASTCALL UserIsEntered(VOID)
 180 {
 181    return ExIsResourceAcquiredExclusiveLite(&UserLock)
 182       || ExIsResourceAcquiredSharedLite(&UserLock);
 183 }
 184
 185 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 186 {
 187    return ExIsResourceAcquiredExclusiveLite(&UserLock);
 188 }
 189
 190 VOID FASTCALL CleanupUserImpl(VOID)
 191 {
 192    ExDeleteResourceLite(&UserLock);
 193 }
 194
 195 VOID FASTCALL UserEnterShared(VOID)
 196 {
 197    KeEnterCriticalRegion();
 198    ExAcquireResourceSharedLite(&UserLock, TRUE);
 199 }
 200
 201 VOID FASTCALL UserEnterExclusive(VOID)
 202 {
 203    KeEnterCriticalRegion();
 204    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 205 }
 206
 207 VOID FASTCALL UserLeave(VOID)
 208 {
 209    ExReleaseResourceLite(&UserLock);
 210    KeLeaveCriticalRegion();
 211 }