reactos/base/services/schedsvc/schedsvc.c

   1 /*
   2  *  ReactOS Services
   3  *  Copyright (C) 2015 ReactOS Team
   4  *
   5  *  This program is free software; you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation; either version 2 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  This program is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License along
  16  *  with this program; if not, write to the Free Software Foundation, Inc.,
  17  *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18  */
  19 /*
  20  * COPYRIGHT:        See COPYING in the top level directory
  21  * PROJECT:          ReactOS Services
  22  * FILE:             base/services/schedsvc/schedsvc.c
  23  * PURPOSE:          Scheduling service
  24  * PROGRAMMER:       Eric Kohl
  25  */
  26
  27 /* INCLUDES *****************************************************************/
  28
  29 #include "precomp.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(schedsvc);
  32
  33 /* GLOBALS ******************************************************************/
  34
  35 static WCHAR ServiceName[] = L"Schedule";
  36
  37 static SERVICE_STATUS_HANDLE ServiceStatusHandle;
  38 static SERVICE_STATUS ServiceStatus;
  39
  40 /* FUNCTIONS *****************************************************************/
  41
  42 static VOID
  43 UpdateServiceStatus(DWORD dwState)
  44 {
  45     ServiceStatus.dwServiceType = SERVICE_WIN32_OWN_PROCESS;
  46     ServiceStatus.dwCurrentState = dwState;
  47     ServiceStatus.dwControlsAccepted = 0;
  48     ServiceStatus.dwWin32ExitCode = 0;
  49     ServiceStatus.dwServiceSpecificExitCode = 0;
  50     ServiceStatus.dwCheckPoint = 0;
  51
  52     if (dwState == SERVICE_START_PENDING ||
  53         dwState == SERVICE_STOP_PENDING ||
  54         dwState == SERVICE_PAUSE_PENDING ||
  55         dwState == SERVICE_CONTINUE_PENDING)
  56         ServiceStatus.dwWaitHint = 10000;
  57     else
  58         ServiceStatus.dwWaitHint = 0;
  59
  60     SetServiceStatus(ServiceStatusHandle,
  61                      &ServiceStatus);
  62 }
  63
  64 static DWORD WINAPI
  65 ServiceControlHandler(DWORD dwControl,
  66                       DWORD dwEventType,
  67                       LPVOID lpEventData,
  68                       LPVOID lpContext)
  69 {
  70     TRACE("ServiceControlHandler() called\n");
  71
  72     switch (dwControl)
  73     {
  74         case SERVICE_CONTROL_STOP:
  75             TRACE("  SERVICE_CONTROL_STOP received\n");
  76             UpdateServiceStatus(SERVICE_STOP_PENDING);
  77             /* Stop listening to incoming RPC messages */
  78             RpcMgmtStopServerListening(NULL);
  79             UpdateServiceStatus(SERVICE_STOPPED);
  80             return ERROR_SUCCESS;
  81
  82         case SERVICE_CONTROL_PAUSE:
  83             TRACE("  SERVICE_CONTROL_PAUSE received\n");
  84             UpdateServiceStatus(SERVICE_PAUSED);
  85             return ERROR_SUCCESS;
  86
  87         case SERVICE_CONTROL_CONTINUE:
  88             TRACE("  SERVICE_CONTROL_CONTINUE received\n");
  89             UpdateServiceStatus(SERVICE_RUNNING);
  90             return ERROR_SUCCESS;
  91
  92         case SERVICE_CONTROL_INTERROGATE:
  93             TRACE("  SERVICE_CONTROL_INTERROGATE received\n");
  94             SetServiceStatus(ServiceStatusHandle,
  95                              &ServiceStatus);
  96             return ERROR_SUCCESS;
  97
  98         case SERVICE_CONTROL_SHUTDOWN:
  99             TRACE("  SERVICE_CONTROL_SHUTDOWN received\n");
 100             UpdateServiceStatus(SERVICE_STOP_PENDING);
 101             UpdateServiceStatus(SERVICE_STOPPED);
 102             return ERROR_SUCCESS;
 103
 104         default :
 105             TRACE("  Control %lu received\n", dwControl);
 106             return ERROR_CALL_NOT_IMPLEMENTED;
 107     }
 108 }
 109
 110
 111 static
 112 DWORD
 113 ServiceInit(VOID)
 114 {
 115     HANDLE hThread;
 116
 117     hThread = CreateThread(NULL,
 118                            0,
 119                            (LPTHREAD_START_ROUTINE)RpcThreadRoutine,
 120                            NULL,
 121                            0,
 122                            NULL);
 123
 124     if (!hThread)
 125     {
 126         ERR("Can't create PortThread\n");
 127         return GetLastError();
 128     }
 129     else
 130         CloseHandle(hThread);
 131
 132     return ERROR_SUCCESS;
 133 }
 134
 135
 136 VOID WINAPI
 137 SchedServiceMain(DWORD argc, LPTSTR *argv)
 138 {
 139     DWORD dwError;
 140
 141     UNREFERENCED_PARAMETER(argc);
 142     UNREFERENCED_PARAMETER(argv);
 143
 144     TRACE("SchedServiceMain() called\n");
 145
 146     ServiceStatusHandle = RegisterServiceCtrlHandlerExW(ServiceName,
 147                                                         ServiceControlHandler,
 148                                                         NULL);
 149     if (!ServiceStatusHandle)
 150     {
 151         ERR("RegisterServiceCtrlHandlerExW() failed! (Error %lu)\n", GetLastError());
 152         return;
 153     }
 154
 155     UpdateServiceStatus(SERVICE_START_PENDING);
 156
 157     dwError = ServiceInit();
 158     if (dwError != ERROR_SUCCESS)
 159     {
 160         ERR("Service stopped (dwError: %lu\n", dwError);
 161         UpdateServiceStatus(SERVICE_STOPPED);
 162         return;
 163     }
 164
 165     UpdateServiceStatus(SERVICE_RUNNING);
 166 }
 167
 168
 169 BOOL WINAPI
 170 DllMain(HINSTANCE hinstDLL,
 171         DWORD fdwReason,
 172         LPVOID lpvReserved)
 173 {
 174     switch (fdwReason)
 175     {
 176         case DLL_PROCESS_ATTACH:
 177             DisableThreadLibraryCalls(hinstDLL);
 178             break;
 179
 180         case DLL_PROCESS_DETACH:
 181             break;
 182     }
 183
 184     return TRUE;
 185 }