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