git.oblomov.eu Git - wine/blob - dlls/dplayx/dplayx_main.c

   1 /*
   2  * DPLAYX.DLL LibMain
   3  *
   4  * Copyright 1999,2000 - Peter Hunnisett
   5  *
   6  * contact <hunnise@nortelnetworks.com>
   7  */
   8 #include "winerror.h"
   9 #include "winbase.h"
  10 #include "debugtools.h"
  11
  12 #include "initguid.h"  /* To define the GUIDs */
  13 #include "dplaysp.h"
  14 #include "dplayx_global.h"
  15
  16 DEFAULT_DEBUG_CHANNEL(dplay);
  17
  18 DEFINE_GUID(GUID_NULL,0,0,0,0,0,0,0,0,0,0,0);
  19
  20 static DWORD DPLAYX_dwProcessesAttached = 0;
  21
  22 /* This is a globally exported variable at ordinal 6 of DPLAYX.DLL */
  23 DWORD gdwDPlaySPRefCount = 0; /* FIXME: Should it be initialized here? */
  24
  25
  26 BOOL WINAPI DPLAYX_LibMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved )
  27 {
  28
  29   TRACE( "(%u,0x%08lx,%p) & 0x%08lx\n", hinstDLL, fdwReason, lpvReserved, DPLAYX_dwProcessesAttached );
  30
  31   switch ( fdwReason )
  32   {
  33     case DLL_PROCESS_ATTACH:
  34     {
  35
  36       if ( DPLAYX_dwProcessesAttached++ == 0 )
  37       {
  38         /* First instance perform construction of global processor data */
  39         return DPLAYX_ConstructData();
  40       }
  41
  42       break;
  43     }
  44
  45     case DLL_PROCESS_DETACH:
  46     {
  47
  48       if ( --DPLAYX_dwProcessesAttached == 0 )
  49       {
  50         /* Last instance performs destruction of global processor data */
  51         return DPLAYX_DestructData();
  52       }
  53
  54       break;
  55     }
  56
  57     case DLL_THREAD_ATTACH: /* Do nothing */
  58     case DLL_THREAD_DETACH: /* Do nothing */
  59       break;
  60     default:
  61       break;
  62
  63   }
  64
  65   return TRUE;
  66 }
  67
  68 /***********************************************************************
  69  *              DllCanUnloadNow (DPLAYX.10)
  70  */
  71 HRESULT WINAPI DPLAYX_DllCanUnloadNow(void)
  72 {
  73   HRESULT hr = ( gdwDPlaySPRefCount > 0 ) ? S_FALSE : S_OK;
  74
  75   /* FIXME: Should I be putting a check in for class factory objects
  76    *        as well
  77    */
  78
  79   TRACE( ": returning 0x%08lx\n", hr );
  80
  81   return hr;
  82 }
  83