reactos/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 BOOL
  86 InitVideo(ULONG);
  87
  88 NTSTATUS
  89 NTAPI
  90 UserInitialize(
  91   HANDLE  hPowerRequestEvent,
  92   HANDLE  hMediaRequestEvent)
  93 {
  94 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
  95 // Create Object Directory,,, Looks like create workstation. "\\Windows\\WindowStations"
  96 // Create Event for Diconnect Desktop.
  97     InitVideo(0);
  98 // Initialize Video.
  99 // {
 100 //     DrvInitConsole.
 101 //     DrvChangeDisplaySettings.
 102 //     Update Shared Device Caps.
 103 //     Initialize User Screen.
 104 // }
 105 // Create ThreadInfo for this Thread!
 106 // {
 107
 108     GetW32ThreadInfo();
 109
 110 //    Callback to User32 Client Thread Setup
 111
 112     co_IntClientThreadSetup();
 113
 114 // }
 115 // Set Global SERVERINFO Error flags.
 116 // Load Resources.
 117
 118     NtUserUpdatePerUserSystemParameters(0, TRUE);
 119
 120     CsrInit();
 121
 122     return STATUS_SUCCESS;
 123 }
 124
 125 /*
 126     Called from win32csr.
 127  */
 128 NTSTATUS
 129 APIENTRY
 130 NtUserInitialize(
 131   DWORD   dwWinVersion,
 132   HANDLE  hPowerRequestEvent,
 133   HANDLE  hMediaRequestEvent)
 134 {
 135     NTSTATUS Status;
 136
 137     DPRINT1("Enter NtUserInitialize(%lx, %p, %p)\n",
 138             dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 139
 140     /* Check the Windows version */
 141     if (dwWinVersion != 0)
 142     {
 143         return STATUS_UNSUCCESSFUL;
 144     }
 145
 146     /* Acquire exclusive lock */
 147     UserEnterExclusive();
 148
 149     /* Check if we are already initialized */
 150     if (gbInitialized)
 151     {
 152         UserLeave();
 153         return STATUS_UNSUCCESSFUL;
 154     }
 155
 156 // Initialize Power Request List.
 157 // Initialize Media Change.
 158 // InitializeGreCSRSS();
 159 // {
 160 //    Startup DxGraphics.
 161 //    calls ** IntGdiGetLanguageID() and sets it **.
 162 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 163 // }
 164
 165     /* Initialize USER */
 166     Status = UserInitialize(hPowerRequestEvent, hMediaRequestEvent);
 167
 168     /* Set us as initialized */
 169     gbInitialized = TRUE;
 170
 171     /* Return */
 172     UserLeave();
 173     return Status;
 174 }
 175
 176
 177 /*
 178 RETURN
 179    True if current thread owns the lock (possibly shared)
 180 */
 181 BOOL FASTCALL UserIsEntered(VOID)
 182 {
 183    return ExIsResourceAcquiredExclusiveLite(&UserLock)
 184       || ExIsResourceAcquiredSharedLite(&UserLock);
 185 }
 186
 187 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 188 {
 189    return ExIsResourceAcquiredExclusiveLite(&UserLock);
 190 }
 191
 192 VOID FASTCALL CleanupUserImpl(VOID)
 193 {
 194    ExDeleteResourceLite(&UserLock);
 195 }
 196
 197 VOID FASTCALL UserEnterShared(VOID)
 198 {
 199    KeEnterCriticalRegion();
 200    ExAcquireResourceSharedLite(&UserLock, TRUE);
 201 }
 202
 203 VOID FASTCALL UserEnterExclusive(VOID)
 204 {
 205    KeEnterCriticalRegion();
 206    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 207 }
 208
 209 VOID FASTCALL UserLeave(VOID)
 210 {
 211    ExReleaseResourceLite(&UserLock);
 212    KeLeaveCriticalRegion();
 213 }