dlls/dplayx/dplayx_main.c

   1 /*
   2  * DPLAYX.DLL LibMain
   3  *
   4  * Copyright 1999,2000 - Peter Hunnisett
   5  *
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  *
  21  * NOTES
  22  *  o A small issue will be the fact that DirectX 6.1(ie. DirectPlay4)
  23  *    introduces a layer of functionality inside the DP objects which
  24  *    provide guaranteed protocol delivery.  This is even if the native
  25  *    protocol, IPX or modem for instance, doesn't guarantee it. I'm going
  26  *    to leave this kind of implementation to as close to the end as
  27  *    possible. However, I will implement an abstraction layer, where
  28  *    possible, for this functionality. It will do nothing to start, but
  29  *    will require only the implementation of the guarantee to give
  30  *    final implementation.
  31  *
  32  * TODO:
  33  *  - Implement mutual exclusion on object data for existing functions
  34  *  - Ensure that all dll stubs are present and the ordinals are correct
  35  *  - Addition of DirectX 7.0 functionality for direct play
  36  *  - Implement some WineLib test programs using sdk programs as a skeleton
  37  *  - Change RegEnumKeyEx enumeration pattern to allow error handling and to
  38  *    share registry implementation (or at least simplify).
  39  *  - Add in appropriate RegCloseKey calls for all the opening we're doing...
  40  *  - Fix all the buffer sizes for registry calls. They're off by one -
  41  *    but in a safe direction.
  42  *  - Fix race condition on interface destruction
  43  *  - Handles need to be correctly reference counted
  44  *  - Check if we need to deallocate any list objects when destroying
  45  *    a dplay interface
  46  *  - RunApplication process spawning needs to have correct syncronization.
  47  *  - Need to get inter lobby messages working.
  48  *  - Decypher dplay messages between applications and implement...
  49  *  - Need to implement lobby session spawning.
  50  *  - Improve footprint and realtime blocking by setting up a separate data share
  51  *    between lobby application and client since there can be multiple apps per
  52  *    client. Also get rid of offset dependency by making data offset independent
  53  *    somehow.
  54  */
  55 #include <stdarg.h>
  56
  57 #include "winerror.h"
  58 #include "windef.h"
  59 #include "winbase.h"
  60 #include "wine/debug.h"
  61 #include "dplayx_global.h"
  62
  63 WINE_DEFAULT_DEBUG_CHANNEL(dplay);
  64
  65 /* This is a globally exported variable at ordinal 6 of DPLAYX.DLL */
  66 DWORD gdwDPlaySPRefCount = 0; /* FIXME: Should it be initialized here? */
  67
  68
  69 BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved )
  70 {
  71
  72   TRACE( "(%p,%d,%p)\n", hinstDLL, fdwReason, lpvReserved );
  73
  74   switch ( fdwReason )
  75   {
  76     case DLL_PROCESS_ATTACH:
  77         DisableThreadLibraryCalls(hinstDLL);
  78         /* First instance perform construction of global processor data */
  79         return DPLAYX_ConstructData();
  80
  81     case DLL_PROCESS_DETACH:
  82         /* Last instance performs destruction of global processor data */
  83         return DPLAYX_DestructData();
  84
  85     default:
  86       break;
  87
  88   }
  89
  90   return TRUE;
  91 }
  92
  93 /***********************************************************************
  94  *              DllCanUnloadNow (DPLAYX.@)
  95  */
  96 HRESULT WINAPI DllCanUnloadNow(void)
  97 {
  98   HRESULT hr = ( gdwDPlaySPRefCount > 0 ) ? S_FALSE : S_OK;
  99
 100   /* FIXME: Should I be putting a check in for class factory objects
 101    *        as well?
 102    */
 103
 104   TRACE( ": returning 0x%08x\n", hr );
 105
 106   return hr;
 107 }