| 1 | /* $Id: windllbase.h,v 1.6 2000-10-10 17:14:06 sandervl Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * Win32 Dll base class
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| 5 | *
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| 6 | * Copyright 1998-1999 Sander van Leeuwen (sandervl@xs4all.nl)
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| 7 | *
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| 8 | *
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| 9 | * Project Odin Software License can be found in LICENSE.TXT
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| 10 | *
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| 11 | */
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| 12 | #ifndef __WINDLLBASE_H__
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| 13 | #define __WINDLLBASE_H__
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| 14 |
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| 15 | #include <winimagebase.h>
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| 16 | #include <odinlx.h>
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| 17 | #include <vmutex.h>
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| 18 |
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| 19 | #ifndef HINSTANCE
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| 20 | #define HINSTANCE ULONG
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| 21 | #endif
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| 22 |
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| 23 | #define DLL_PROCESS_ATTACH 1
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| 24 | #define DLL_THREAD_ATTACH 2
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| 25 | #define DLL_THREAD_DETACH 3
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| 26 | #define DLL_PROCESS_DETACH 0
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| 27 |
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| 28 | #define DONT_RESOLVE_DLL_REFERENCES 0x00000001
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| 29 | #define LOAD_LIBRARY_AS_DATAFILE 0x00000002
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| 30 | #define LOAD_WITH_ALTERED_SEARCH_PATH 0x00000008
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| 31 |
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| 32 | //odin.ini section names to lookup renamed dlls
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| 33 | //i.e. OLE32 -> OLE32OS2
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| 34 | #define DLLRENAMEWIN_SECTION "DLLRENAMEWIN"
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| 35 | //i.e. OLE32OS2 -> OLE32
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| 36 | #define DLLRENAMEOS2_SECTION "DLLRENAMEOS2"
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| 37 |
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| 38 | class Win32DllBase : public virtual Win32ImageBase
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| 39 | {
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| 40 | public:
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| 41 | Win32DllBase(HINSTANCE hInstance, WIN32DLLENTRY DllEntryPoint, Win32ImageBase *parent = NULL);
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| 42 | virtual ~Win32DllBase();
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| 43 |
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| 44 | #ifdef DEBUG
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| 45 | virtual ULONG AddRef(char *parentname = NULL);
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| 46 | #else
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| 47 | virtual ULONG AddRef();
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| 48 | #endif
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| 49 | virtual ULONG Release();
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| 50 |
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| 51 | char *getName() { return szModule; };
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| 52 |
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| 53 | //do not call the ATTACH_THREAD, DETACH_THREAD functions
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| 54 | void disableThreadLibraryCalls() { fSkipThreadEntryCalls = TRUE; };
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| 55 | void disableLibraryCalls() { fSkipEntryCalls = fSkipThreadEntryCalls = TRUE; };
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| 56 |
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| 57 | Win32DllBase *getNext() { return next; };
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| 58 | static Win32DllBase *getFirst();
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| 59 |
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| 60 | //Send DLL_THREAD_ATTACH message to all dlls for a new thread
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| 61 | static void attachThreadToAllDlls();
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| 62 |
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| 63 | //Send DLL_THREAD_DETACH message to all dlls for thread that's about to die
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| 64 | static void detachThreadFromAllDlls();
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| 65 |
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| 66 | //Setup TLS structure for all dlls for a new thread
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| 67 | static void tlsAttachThreadToAllDlls();
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| 68 |
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| 69 | //Destroy TLS structure for all dlls for a thread that's about to die
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| 70 | static void tlsDetachThreadFromAllDlls();
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| 71 |
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| 72 | BOOL attachProcess();
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| 73 | BOOL detachProcess();
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| 74 | BOOL attachThread();
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| 75 | BOOL detachThread();
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| 76 |
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| 77 | //This counter is incremented when the dll has been loaded with LoadLibrary(Ex)
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| 78 | //(== not loaded on behalf of another dll or the main exe)
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| 79 | void incDynamicLib();
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| 80 | void decDynamicLib();
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| 81 | BOOL isDynamicLib() { return nrDynamicLibRef != 0; };
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| 82 |
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| 83 | void setUnloadOrder(Win32ImageBase *parent);
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| 84 |
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| 85 | void updateDependencies();
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| 86 |
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| 87 | BOOL RemoveCircularDependency(Win32DllBase *parent);
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| 88 |
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| 89 | //Only called for kernel32
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| 90 | void DisableUnload() { fDisableUnload = TRUE; };
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| 91 |
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| 92 | static void deleteDynamicLibs();
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| 93 | static void deleteAll();
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| 94 |
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| 95 | static BOOL isSystemDll(char *szFileName);
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| 96 |
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| 97 | virtual BOOL isLxDll() = 0;
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| 98 | virtual BOOL isDll();
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| 99 |
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| 100 | static void renameDll(char *dllname, BOOL fWinToOS2=TRUE);
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| 101 | static void setDefaultRenaming();
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| 102 |
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| 103 | static Win32DllBase *findModule(char *dllname, BOOL fRenameFirst = FALSE);
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| 104 | static Win32DllBase *findModule(HINSTANCE hinstance);
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| 105 | static Win32DllBase *findModule(WIN32DLLENTRY DllEntryPoint);
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| 106 | static Win32DllBase *findModuleByAddr(ULONG address);
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| 107 |
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| 108 | #ifdef DEBUG_ENABLELOG_LEVEL2
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| 109 | void printListOfDlls();
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| 110 | #endif
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| 111 |
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| 112 | protected:
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| 113 | #ifdef DEBUG
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| 114 | void printDependencies(char *parent);
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| 115 | #endif
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| 116 |
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| 117 | BOOL fSkipThreadEntryCalls, fUnloaded, fAttachedToProcess, fSkipEntryCalls;
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| 118 |
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| 119 | WIN32DLLENTRY dllEntryPoint;
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| 120 |
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| 121 | LONG referenced;
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| 122 |
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| 123 | //This counter is incremented when the dll has been loaded with LoadLibrary(Ex)
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| 124 | //(== not loaded on behalf of another dll or the main exe)
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| 125 | BOOL nrDynamicLibRef;
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| 126 |
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| 127 | BOOL fInserted; //inserted in dll list
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| 128 |
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| 129 | //This flag is set when a dll has been loaded with DosLoadModule
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| 130 | BOOL fDisableUnload;
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| 131 |
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| 132 | static Win32DllBase *head;
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| 133 | Win32DllBase *next;
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| 134 | private:
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| 135 | static Queue loadLibDlls;
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| 136 | };
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| 137 |
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| 138 | extern VMutex dlllistmutex; //protects linked lists of heaps
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| 139 |
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| 140 | #endif
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