190 lines
4.5 KiB
C++
190 lines
4.5 KiB
C++
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//
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// PKD.CPP
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//
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// Source file for ArchiveLib 2.0
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//
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// Copyright (c) Greenleaf Software, Inc. 1994-1996
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// All Rights Reserved
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//
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// CONTENTS
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//
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// PkDecompressTools()
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// newALListPkDecompressTools()
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//
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// DESCRIPTION
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//
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// The functions needed to create Entry Lists that use
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// the PkWare decompressor.
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New release
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//
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#include "arclib.h"
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#if !defined( AL_IBM )
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#pragma hdrstop
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#endif
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#include "pkengn.h"
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#include "copyengn.h"
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#include "filestor.h"
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#include "memstore.h"
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//
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// NAME
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//
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// PkDecompressTools()
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//
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// PLATFORMS/ENVIRONMENTS
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//
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// Console Windows PM
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// C++ C VB Delphi
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//
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// SHORT DESCRIPTION
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//
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// Create a toolkit that supports PKWare decompressors.
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//
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// C++ SYNOPSIS
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//
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// #include "arclib.h"
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//
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// ALToolKit PkDecompressTools();
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//
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// C SYNOPSIS
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//
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// None, C programmers should use the shortcut helper function
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// newALPkDecompressTools() to create an entry list with this toolkit.
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//
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// VB SYNOPSIS
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//
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// None, VB programmers should use the shortcut helper function
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// newALPkDecompressTools() to create an entry list with this toolkit.
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//
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// DELPHI SYNOPSIS
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//
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// None, Delphi programmers should use the shortcut helper function
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// newALPkDecompressTools() to create an entry list with this toolkit.
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//
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// ARGUMENTS
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//
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// None.
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//
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// DESCRIPTION
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//
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// An ALToolKit is a factory that things in the ALArchive class can use
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// to clone new objects. PkDecompressTools() creates a toolkit that can
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// build PKWare decompressors. If your app is only going to be
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// decompressing some type of objects, you can use the toolkit returned
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// by this function in your ALEntryList, and avoid linking in support for
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// compression objects.
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//
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// This toolkit will clone ALFile() and ALMemory() objects. If you don't
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// want to support ALMemory objects, try PkDecompressFileTools().
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//
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// RETURNS
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//
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// A new toolkit. Note that this isn't a pointer, but rather a copy of
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// a new toolkit. Usually this is copied into an existing toolkit.
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//
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// EXAMPLE
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//
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// SEE ALSO
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New Release
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//
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AL_LINKAGE ALToolKit AL_FUNCTION
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PkDecompressTools() /* Tag public function */
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{
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return ALPkDecompressor() +
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ALCopyDecompressor() +
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ALFile() +
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#if defined( AL_WINDOWS ) && !defined( AL_FLAT_MODEL )
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ALWinMemory();
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#else
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ALMemory();
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#endif
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}
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//
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// NAME
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//
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// newALListPkDecompressTools()
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//
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// PLATFORMS/ENVIRONMENTS
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//
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// Console Windows PM
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// C VB Delphi
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//
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// SHORT DESCRIPTION
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//
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// Create an entry list that uses the PKWare decompressors toolkit.
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//
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// C++ SYNOPSIS
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//
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// None. C++ programmers can create and manipulate toolkits easily.
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// This isn't the case for C/VB/Delphi programmers, so we give them
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// this special function.
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//
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// C SYNOPSIS
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//
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// #include "arclib.h"
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//
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// hALEntryList newALListPkDecompressTools( hALMonitor monitor );
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//
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// VB SYNOPSIS
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//
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// Declare Function newALListPkDecompressTools Lib "AL20LW"
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// (ByVal monitor&) As Long
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//
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// DELPHI SYNOPSIS
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//
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// function newALListPkDecompressTools( monitor : hALMonitor ) : hALEntryList;
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//
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// ARGUMENTS
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//
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// monitor : A pointer to a monitor that will be used whenever we are
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// processing objects in the list.
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//
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// DESCRIPTION
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//
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// C++ programmers pass a toolkit argument to the ALEntryList constructor,
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// which determines what sort of compressors and storage objects they are
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// expecting to use. C/VB/Delphi programmers can do the same thing as well,
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// but it's a little bit harder for them. They have to manually create
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// a toolkit, get its handle, then pass that handle to the constructor.
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// After that, they need to destroy the toolkit.
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//
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// As a shortcut way to bypass all that work, we provide this function that
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// creates an ALEntryList with the appropriate toolkit.
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//
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// RETURNS
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//
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// A handle to the newly created ALEntryList object.
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//
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// EXAMPLE
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//
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// SEE ALSO
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//
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// REVISION HISTORY
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//
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// February 14, 1996 2.0A : New Release
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//
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#if !defined( AL_NO_C )
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extern "C" AL_LINKAGE hALEntryList AL_FUNCTION
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newALListPkDecompressTools( hALMonitor monitor ) /* Tag public function */
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{
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if ( monitor )
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AL_ASSERT_OBJECT( monitor, ALMonitor, "newALListPkDecompressTools" );
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return (hALEntryList) new ALEntryList( (ALMonitor *) monitor,
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PkDecompressTools() );
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}
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#endif
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