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Viewing changes to SrcShared/Patches/EmPatchModuleTypes.h

  • Committer: Christopher Werkshage
  • Date: 2014-12-27 12:51:57 UTC
  • Revision ID: git-v1:cc9410eb6ec5b4e23248dc175d142202f86be8e8

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SrcShared/Patches/EmPatchModuleTypes.h
 
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/* -*- mode: C++; tab-width: 4 -*- */
 
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/* ===================================================================== *\
 
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        Copyright (c) 2001 PocketPyro, Inc.
 
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        Portions Copyright (c) Palm, Inc.
 
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        All rights reserved.
 
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        This file is part of the Palm OS Emulator.
 
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        This program is free software; you can redistribute it and/or modify
 
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        it under the terms of the GNU General Public License as published by
 
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        the Free Software Foundation; either version 2 of the License, or
 
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        (at your option) any later version.
 
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\* ===================================================================== */
 
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#ifndef EmPatchModuleTypes_h
 
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#define EmPatchModuleTypes_h
 
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#include "EmPatchIf.h"                  // HeadpatchProc, TailpatchProc, IEmPatchModule
 
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#include "EmStructs.h"                  // SystemCallContext
 
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// ======================================================================
 
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// At compile time, the list of functions we want to head- and tailpatch
 
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// are stored in an array of ProtoPatchTableEntries.  At runtime, these
 
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// compact arrays are expanded by PatchModule into a sparse array
 
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// so that the function dispatch number can be used to look up the
 
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// patch function.
 
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// ======================================================================
 
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struct ProtoPatchTableEntry
 
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{
 
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        uint16                  fTrapWord;
 
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        HeadpatchProc   fHeadpatch;
 
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        TailpatchProc   fTailpatch;
 
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};
 
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// ===========================================================================
 
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//              InstalledLibPatchEntry
 
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// ===========================================================================
 
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// Structure used to hold tail-patch information.
 
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class InstalledLibPatchEntry
 
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{
 
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        public:
 
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                                                                InstalledLibPatchEntry (void) :
 
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                                                                        fIsDirty (true),
 
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                                                                        fTableP (NULL)
 
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                                                                {
 
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                                                                }
 
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                bool                                    IsDirty (void) const
 
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                                                                {
 
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                                                                        return fIsDirty;
 
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                                                                }
 
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                void                                    SetDirty (bool dirty = true)
 
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                                                                {
 
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                                                                        fIsDirty = dirty;
 
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                                                                }
 
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                IEmPatchModule*                 GetPatchTableP (void) const
 
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                                                                {
 
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                                                                        return fTableP;
 
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                                                                }
 
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                void                                    SetPatchTableP (IEmPatchModule* tableP)
 
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                                                                {
 
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                                                                        fTableP = tableP;
 
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                                                                }
 
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        private:
 
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                bool                                    fIsDirty;
 
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                IEmPatchModule*                 fTableP;
 
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};
 
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typedef vector<InstalledLibPatchEntry> PatchedLibIndex;
 
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// ===========================================================================
 
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//              � TailpatchType
 
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// ===========================================================================
 
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// Structure used to hold tail-patch information.
 
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struct TailpatchType
 
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{
 
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        SystemCallContext       fContext;
 
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        int32                           fCount;
 
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        TailpatchProc           fTailpatch;
 
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};
 
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typedef vector<TailpatchType>           TailPatchIndex;
 
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#endif // EmPatchModuleTypes_h