base/services/audiosrv/services.c

   1 /*
   2  * PROJECT:          ReactOS
   3  * LICENSE:          GPL - See COPYING in the top level directory
   4  * FILE:             base/services/audiosrv/services.c
   5  * PURPOSE:          Audio Service Plug and Play
   6  * COPYRIGHT:        Copyright 2009 Johannes Anderwald
   7  */
   8
   9 #include "audiosrv.h"
  10
  11 BOOL
  12 WaitForService(
  13     SC_HANDLE hService,
  14     ULONG RetryCount)
  15 {
  16     ULONG Index = 0;
  17     DWORD dwSize;
  18     SERVICE_STATUS_PROCESS Info;
  19
  20     do
  21     {
  22         if (!QueryServiceStatusEx(hService, SC_STATUS_PROCESS_INFO, (LPBYTE)&Info, sizeof(SERVICE_STATUS_PROCESS), &dwSize))
  23         {
  24             logmsg("QueryServiceStatusEx failed %x\n", GetLastError());
  25             break;
  26         }
  27
  28         if (Info.dwCurrentState == SERVICE_RUNNING)
  29             return TRUE;
  30
  31         Sleep(1000);
  32
  33     }while(Index++ < RetryCount);
  34
  35     logmsg("Timeout while waiting for service to become ready %p\n", hService);
  36
  37     return FALSE;
  38 }
  39
  40 BOOL
  41 StartAudioService(
  42     SC_HANDLE hSCManager,
  43     LPWSTR ServiceName,
  44     ULONG RetryCount)
  45 {
  46     SC_HANDLE hService;
  47     BOOL ret;
  48
  49     hService = OpenService(hSCManager, ServiceName, SERVICE_ALL_ACCESS);
  50
  51     if (!hService)
  52     {
  53         logmsg("Failed to open service %S %x\n", ServiceName, GetLastError());
  54         return FALSE;
  55     }
  56
  57     if (!StartService(hService, 0, NULL))
  58     {
  59         logmsg("Failed to start service %S %x\n", ServiceName, GetLastError());
  60         CloseServiceHandle(hService);
  61         return FALSE;
  62     }
  63
  64     ret = WaitForService(hService, RetryCount);
  65
  66     CloseServiceHandle(hService);
  67     return ret;
  68 }
  69
  70
  71
  72
  73 BOOL
  74 StartSystemAudioServices()
  75 {
  76     SC_HANDLE hSCManager;
  77
  78     logmsg("Starting system audio services\n");
  79
  80     hSCManager = OpenSCManager(NULL, NULL, SC_MANAGER_CONNECT);
  81     if (!hSCManager)
  82     {
  83         logmsg("Failed to open service manager %x\n", GetLastError());
  84         return FALSE;
  85     }
  86
  87     logmsg("Starting sysaudio service\n");
  88     StartAudioService(hSCManager, L"sysaudio", 20);
  89     logmsg("Starting wdmaud service\n");
  90     StartAudioService(hSCManager, L"wdmaud", 20);
  91
  92     CloseServiceHandle(hSCManager);
  93     return TRUE;
  94 }
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