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 DPMSGCMD_ENUMSESSIONSREPLY & DPMSGCMD_ENUMSESSIONSREQUEST
  23  *    Have most fields understood, but not all.  Everything seems to work.
  24  *  o DPMSGCMD_REQUESTNEWPLAYERID & DPMSGCMD_NEWPLAYERIDREPLY
  25  *    Barely works. This needs to be completed for sessions to start.
  26  *  o A small issue will be the fact that DirectX 6.1(ie. DirectPlay4)
  27  *    introduces a layer of functionality inside the DP objects which
  28  *    provide guaranteed protocol delivery.  This is even if the native
  29  *    protocol, IPX or modem for instance, doesn't guarantee it. I'm going
  30  *    to leave this kind of implementation to as close to the end as
  31  *    possible. However, I will implement an abstraction layer, where
  32  *    possible, for this functionality. It will do nothing to start, but
  33  *    will require only the implementation of the guarantee to give
  34  *    final implementation.
  35  *
  36  * TODO:
  37  *  - Implement mutual exclusion on object data for existing functions
  38  *  - Ensure that all dll stubs are present and the ordinals are correct
  39  *  - Addition of DirectX 7.0 functionality for direct play
  40  *  - Implement some WineLib test programs using sdk programs as a skeleton
  41  *  - Change RegEnumKeyEx enumeration pattern to allow error handling and to
  42  *    share registry implementation (or at least simplify).
  43  *  - Add in appropriate RegCloseKey calls for all the opening we're doing...
  44  *  - Fix all the buffer sizes for registry calls. They're off by one -
  45  *    but in a safe direction.
  46  *  - Fix race condition on interface destruction
  47  *  - Handles need to be correctly reference counted
  48  *  - Check if we need to deallocate any list objects when destroying
  49  *    a dplay interface
  50  *  - RunApplication process spawning needs to have correct synchronization.
  51  *  - Need to get inter lobby messages working.
  52  *  - Decipher dplay messages between applications and implement...
  53  *  - Need to implement lobby session spawning.
  54  *  - Improve footprint and realtime blocking by setting up a separate data share
  55  *    between lobby application and client since there can be multiple apps per
  56  *    client. Also get rid of offset dependency by making data offset independent
  57  *    somehow.
  58  */
  59 #include <stdarg.h>
  60
  61 #include "winerror.h"
  62 #include "windef.h"
  63 #include "winbase.h"
  64 #include "objbase.h"
  65 #include "rpcproxy.h"
  66 #include "wine/debug.h"
  67 #include "dplayx_global.h"
  68
  69 WINE_DEFAULT_DEBUG_CHANNEL(dplay);
  70
  71 /* This is a globally exported variable at ordinal 6 of DPLAYX.DLL */
  72 DWORD gdwDPlaySPRefCount = 0;
  73
  74
  75 BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved )
  76 {
  77
  78   TRACE( "(%p,%ld,%p)\n", hinstDLL, fdwReason, lpvReserved );
  79
  80   switch ( fdwReason )
  81   {
  82     case DLL_PROCESS_ATTACH:
  83         DisableThreadLibraryCalls(hinstDLL);
  84         /* First instance perform construction of global processor data */
  85         return DPLAYX_ConstructData();
  86
  87     case DLL_PROCESS_DETACH:
  88         /* Last instance performs destruction of global processor data */
  89         return DPLAYX_DestructData();
  90
  91     default:
  92       break;
  93
  94   }
  95
  96   return TRUE;
  97 }
  98
  99 /***********************************************************************
 100  *              DllCanUnloadNow (DPLAYX.@)
 101  */
 102 HRESULT WINAPI DllCanUnloadNow(void)
 103 {
 104   HRESULT hr = ( gdwDPlaySPRefCount > 0 ) ? S_FALSE : S_OK;
 105
 106   /* FIXME: Should I be putting a check in for class factory objects
 107    *        as well?
 108    */
 109
 110   TRACE( ": returning %#lx\n", hr );
 111
 112   return hr;
 113 }