base/services/shsvcs/thmsvc.c

   1 /*
   2  * COPYRIGHT:        See COPYING in the top level directory
   3  * PROJECT:          ReactOS kernel
   4  * FILE:             base/services/shsvcs/thmsvc.c
   5  * PURPOSE:          Themes service
   6  * PROGRAMMER:       Giannis Adamopoulos
   7  */
   8
   9 /* INCLUDES *****************************************************************/
  10
  11 #include <windows.h>
  12 #include <wine/debug.h>
  13
  14 WINE_DEFAULT_DEBUG_CHANNEL(shsvcs);
  15
  16 /* GLOBALS ******************************************************************/
  17
  18 static WCHAR ServiceName[] = L"Themes";
  19
  20 SERVICE_STATUS_HANDLE ServiceStatusHandle;
  21 SERVICE_STATUS ServiceStatus;
  22
  23
  24 /* FUNCTIONS *****************************************************************/
  25
  26 HANDLE StartEvent, StopEvent;
  27
  28 static VOID
  29 UpdateServiceStatus(DWORD dwState)
  30 {
  31     ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  32     ServiceStatus.dwCurrentState = dwState;
  33
  34     if (dwState == SERVICE_RUNNING)
  35         ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_PAUSE_CONTINUE | SERVICE_ACCEPT_STOP | SERVICE_ACCEPT_SHUTDOWN;
  36     else if (dwState == SERVICE_PAUSED)
  37         ServiceStatus.dwControlsAccepted = SERVICE_ACCEPT_PAUSE_CONTINUE;
  38     else
  39         ServiceStatus.dwControlsAccepted = 0;
  40
  41     ServiceStatus.dwWin32ExitCode = 0;
  42     ServiceStatus.dwServiceSpecificExitCode = 0;
  43     ServiceStatus.dwCheckPoint = 0;
  44
  45     if (dwState == SERVICE_START_PENDING ||
  46         dwState == SERVICE_STOP_PENDING ||
  47         dwState == SERVICE_PAUSE_PENDING ||
  48         dwState == SERVICE_CONTINUE_PENDING)
  49         ServiceStatus.dwWaitHint = 10000;
  50     else
  51         ServiceStatus.dwWaitHint = 0;
  52
  53     SetServiceStatus(ServiceStatusHandle,
  54                      &ServiceStatus);
  55 }
  56
  57
  58 static DWORD WINAPI
  59 ServiceControlHandler(DWORD dwControl,
  60                       DWORD dwEventType,
  61                       LPVOID lpEventData,
  62                       LPVOID lpContext)
  63 {
  64     TRACE("ServiceControlHandler() called\n");
  65
  66     switch (dwControl)
  67     {
  68         case SERVICE_CONTROL_STOP:
  69             TRACE("  SERVICE_CONTROL_STOP received\n");
  70
  71             /* Signal the theme server in winlogon to remove theme hooks */
  72             ResetEvent(StartEvent);
  73             SetEvent(StopEvent);
  74             UpdateServiceStatus(SERVICE_STOPPED);
  75             return ERROR_SUCCESS;
  76
  77         case SERVICE_CONTROL_PAUSE:
  78             TRACE("  SERVICE_CONTROL_PAUSE received\n");
  79             UpdateServiceStatus(SERVICE_PAUSED);
  80             return ERROR_SUCCESS;
  81
  82         case SERVICE_CONTROL_CONTINUE:
  83             TRACE("  SERVICE_CONTROL_CONTINUE received\n");
  84             UpdateServiceStatus(SERVICE_RUNNING);
  85             return ERROR_SUCCESS;
  86
  87         case SERVICE_CONTROL_INTERROGATE:
  88             TRACE("  SERVICE_CONTROL_INTERROGATE received\n");
  89             SetServiceStatus(ServiceStatusHandle,
  90                              &ServiceStatus);
  91             return ERROR_SUCCESS;
  92
  93         case SERVICE_CONTROL_SHUTDOWN:
  94             TRACE("  SERVICE_CONTROL_SHUTDOWN received\n");
  95             UpdateServiceStatus(SERVICE_STOPPED);
  96             return ERROR_SUCCESS;
  97
  98         default :
  99             TRACE("  Control %lu received\n");
 100             return ERROR_CALL_NOT_IMPLEMENTED;
 101     }
 102 }
 103
 104 VOID
 105 WINAPI
 106 ThemeServiceMain(DWORD argc, LPTSTR *argv)
 107 {
 108     UNREFERENCED_PARAMETER(argc);
 109     UNREFERENCED_PARAMETER(argv);
 110
 111     ServiceStatusHandle = RegisterServiceCtrlHandlerExW(ServiceName,
 112                                                         ServiceControlHandler,
 113                                                         NULL);
 114     if (!ServiceStatusHandle)
 115     {
 116         ERR("RegisterServiceCtrlHandlerExW() failed! (Error %lu)\n", GetLastError());
 117         return;
 118     }
 119
 120     StartEvent = CreateEventW(NULL, TRUE, FALSE, L"Global\\ThemeStartEvent");
 121     StopEvent = CreateEventW(NULL, TRUE, FALSE, L"Global\\ThemeStopEvent");
 122
 123     UpdateServiceStatus(SERVICE_RUNNING);
 124
 125     /* Signal the theme server in winlogon to install theme hooks */
 126     ResetEvent(StopEvent);
 127     SetEvent(StartEvent);
 128 }
 129
 130 /* EOF */