| 1 | /* $Id: windlllx.cpp,v 1.7 2000-02-15 14:37:43 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Win32 LX Dll class (compiled in OS/2 using Odin32 api)
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| 5 | *
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| 6 | * Copyright 1999 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * TODO: Unloading of dlls probably needs to be fixed due to OS/2 bug
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| 10 | * (wrong unload order of dlls)
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| 11 | * TODO: Unloading of system dlls is not correct for the PE loader
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| 12 | * (they're always put at the head of the list even though there
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| 13 | * might be a dependency with a win32 dll)
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| 14 | *
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| 15 | * Project Odin Software License can be found in LICENSE.TXT
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| 16 | *
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| 17 | */
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| 18 | #define INCL_DOSFILEMGR /* File Manager values */
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| 19 | #define INCL_DOSERRORS /* DOS Error values */
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| 20 | #define INCL_DOSPROCESS /* DOS Process values */
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| 21 | #define INCL_DOSMODULEMGR
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| 22 | #define INCL_DOSMISC /* DOS Miscellanous values */
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| 23 | #define INCL_WIN
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| 24 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 25 | #include <stdio.h>
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| 26 | #include <string.h>
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| 27 | #include <stdlib.h>
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| 28 | #include <iostream.h>
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| 29 | #include <fstream.h>
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| 30 | #include <misc.h>
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| 31 | #include <win32type.h>
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| 32 | #include <windllbase.h>
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| 33 | #include <windlllx.h>
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| 34 | #include <odinlx.h>
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| 35 | #include "oslibmisc.h"
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| 36 |
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| 37 | //******************************************************************************
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| 38 | //Create LX Dll object and send process attach message
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| 39 | //System dlls set EntryPoint to 0
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| 40 | //Returns: Odin32 module handle
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| 41 | //******************************************************************************
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| 42 | DWORD WIN32API RegisterLxDll(HINSTANCE hInstance, WIN32DLLENTRY EntryPoint,
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| 43 | PVOID pResData)
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| 44 | {
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| 45 | Win32LxDll *windll;
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| 46 |
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| 47 | windll = (Win32LxDll *)Win32DllBase::findModule(hInstance);
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| 48 | if(windll) {
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| 49 | char *name = OSLibGetDllName(hInstance);
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| 50 | dprintf(("RegisterLxDll: Register existing dll %x %s", hInstance, name));
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| 51 | return FALSE;
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| 52 | }
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| 53 | windll = new Win32LxDll(hInstance, EntryPoint, pResData);
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| 54 | if(windll == NULL) {
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| 55 | dprintf(("RegisterLxDll: windll == NULL!!!"));
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| 56 | return FALSE;
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| 57 | }
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| 58 | windll->AddRef();
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| 59 | if(windll->attachProcess() == 0)
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| 60 | return 0;
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| 61 |
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| 62 | return windll->getInstanceHandle();
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| 63 | }
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| 64 | //******************************************************************************
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| 65 | //Destroy LX Dll object
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| 66 | //******************************************************************************
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| 67 | BOOL WIN32API UnregisterLxDll(HINSTANCE hInstance)
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| 68 | {
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| 69 | #if 1
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| 70 | return TRUE;
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| 71 | #else
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| 72 | Win32LxDll *windll;
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| 73 |
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| 74 | windll = (Win32LxDll *)Win32DllBase::findModule(hInstance);
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| 75 | if(!windll) {
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| 76 | dprintf(("UnregisterLxDll: Can't find dll with handle %x!!!", hInstance));
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| 77 | return FALSE;
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| 78 | }
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| 79 | windll->detachProcess();
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| 80 | delete windll;
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| 81 | return TRUE;
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| 82 | #endif
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| 83 | }
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| 84 | //******************************************************************************
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| 85 | //******************************************************************************
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| 86 | Win32LxDll::Win32LxDll(HINSTANCE hInstance, WIN32DLLENTRY EntryPoint, PVOID pResData)
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| 87 | : Win32ImageBase(hInstance),
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| 88 | Win32LxImage(hInstance, pResData),
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| 89 | Win32DllBase(hInstance, EntryPoint)
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| 90 | {
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| 91 | if(EntryPoint == NULL) {
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| 92 | fSkipEntryCalls = TRUE;
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| 93 | fAttachedToProcess = TRUE;
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| 94 | }
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| 95 | }
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| 96 | //******************************************************************************
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| 97 | //******************************************************************************
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| 98 | Win32LxDll::~Win32LxDll()
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| 99 | {
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| 100 | dprintf(("Win32LxDll::~Win32LxDll %s", szModule));
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| 101 | }
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| 102 | //******************************************************************************
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| 103 | //ASSUMPTION: called by FreeLibrary
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| 104 | //******************************************************************************
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| 105 | ULONG Win32LxDll::Release()
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| 106 | {
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| 107 | ULONG ret = --referenced;
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| 108 | HINSTANCE hinst;
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| 109 |
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| 110 | if(ret == 0) {
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| 111 | dprintf(("Win32LxDll::Release, referenced == 0\n"));
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| 112 | //DosFreeModule sends a termination message to the dll.
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| 113 | //The LX dll informs us when it's removed (UnregisterDll call)
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| 114 | hinst = hinstance;
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| 115 | delete this;
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| 116 | DosFreeModule(hinst);
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| 117 | }
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| 118 | return(ret);
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| 119 | }
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| 120 | //******************************************************************************
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| 121 | //******************************************************************************
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| 122 | BOOL Win32LxDll::isLxDll()
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| 123 | {
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| 124 | return TRUE;
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| 125 | }
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| 126 | //******************************************************************************
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| 127 | //******************************************************************************
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