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    if (!gpsi)
  77    {
  78       gpsi = UserHeapAlloc(sizeof(SERVERINFO));
  79       if (gpsi)
  80       {
  81          RtlZeroMemory(gpsi, sizeof(SERVERINFO));
  82          DPRINT("Global Server Data -> %x\n", gpsi);
  83       }
  84    }
  85
  86    InitUserAtoms();
  87
  88    InitSysParams();
  89
  90    return STATUS_SUCCESS;
  91 }
  92
  93
  94 NTSTATUS
  95 NTAPI
  96 UserInitialize(
  97   HANDLE  hPowerRequestEvent,
  98   HANDLE  hMediaRequestEvent)
  99 {
 100 // Set W32PF_Flags |= (W32PF_READSCREENACCESSGRANTED | W32PF_IOWINSTA)
 101 // Create Object Directory,,, Looks like create workstation. "\\Windows\\WindowStations"
 102 // Create Event for Diconnect Desktop.
 103 // Initialize Video.
 104 // {
 105 //     DrvInitConsole.
 106 //     DrvChangeDisplaySettings.
 107 //     Update Shared Device Caps.
 108 //     Initialize User Screen.
 109 // }
 110 // Create ThreadInfo for this Thread!
 111 // {
 112
 113     GetW32ThreadInfo();
 114
 115 //    Callback to User32 Client Thread Setup
 116
 117     co_IntClientThreadSetup();
 118
 119 // }
 120 // Set Global SERVERINFO Error flags.
 121 // Load Resources.
 122
 123     NtUserUpdatePerUserSystemParameters(0, TRUE);
 124
 125     CsrInit();
 126
 127     return STATUS_SUCCESS;
 128 }
 129
 130 /*
 131     Called from win32csr.
 132  */
 133 NTSTATUS
 134 APIENTRY
 135 NtUserInitialize(
 136   DWORD   dwWinVersion,
 137   HANDLE  hPowerRequestEvent,
 138   HANDLE  hMediaRequestEvent)
 139 {
 140     NTSTATUS Status;
 141
 142     DPRINT("Enter NtUserInitialize(%lx, %p, %p)\n",
 143            dwWinVersion, hPowerRequestEvent, hMediaRequestEvent);
 144
 145     /* Check the Windows version */
 146     if (dwWinVersion != 0)
 147     {
 148         return STATUS_UNSUCCESSFUL;
 149     }
 150
 151     /* Acquire exclusive lock */
 152     UserEnterExclusive();
 153
 154     /* Check if we are already initialized */
 155     if (gbInitialized)
 156     {
 157         UserLeave();
 158         return STATUS_UNSUCCESSFUL;
 159     }
 160
 161 // Initialize Power Request List.
 162 // Initialize Media Change.
 163 // InitializeGreCSRSS();
 164 // {
 165 //    Startup DxGraphics.
 166 //    calls ** IntGdiGetLanguageID() and sets it **.
 167 //    Enables Fonts drivers, Initialize Font table & Stock Fonts.
 168 // }
 169
 170     /* Initialize USER */
 171     Status = UserInitialize(hPowerRequestEvent, hMediaRequestEvent);
 172
 173     /* Set us as initialized */
 174     gbInitialized = TRUE;
 175
 176     /* Return */
 177     UserLeave();
 178     return Status;
 179 }
 180
 181
 182 /*
 183 RETURN
 184    True if current thread owns the lock (possibly shared)
 185 */
 186 BOOL FASTCALL UserIsEntered(VOID)
 187 {
 188    return ExIsResourceAcquiredExclusiveLite(&UserLock)
 189       || ExIsResourceAcquiredSharedLite(&UserLock);
 190 }
 191
 192 BOOL FASTCALL UserIsEnteredExclusive(VOID)
 193 {
 194    return ExIsResourceAcquiredExclusiveLite(&UserLock);
 195 }
 196
 197 VOID FASTCALL CleanupUserImpl(VOID)
 198 {
 199    ExDeleteResourceLite(&UserLock);
 200 }
 201
 202 VOID FASTCALL UserEnterShared(VOID)
 203 {
 204    KeEnterCriticalRegion();
 205    ExAcquireResourceSharedLite(&UserLock, TRUE);
 206 }
 207
 208 VOID FASTCALL UserEnterExclusive(VOID)
 209 {
 210    KeEnterCriticalRegion();
 211    ExAcquireResourceExclusiveLite(&UserLock, TRUE);
 212 }
 213
 214 VOID FASTCALL UserLeave(VOID)
 215 {
 216    ExReleaseResourceLite(&UserLock);
 217    KeLeaveCriticalRegion();
 218 }