141 lines
3.9 KiB
C++
141 lines
3.9 KiB
C++
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//
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// ARC.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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// ALArchive::WriteDirectory()
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// ALArchiveWriteDirectory()
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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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#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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//
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// NAME
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//
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// ALArchive::WriteDirectory()
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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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// Writes the directory out to the archive object.
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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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// int ALArchive::WriteDirectory( ALEntryList &list );
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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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// int ALArchiveWriteDirectory( hALArchive this_object,
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// hALEntryList list );
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//
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// VB SYNOPSIS
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//
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// Declare Function ALArchiveWriteDirectory Lib "AL20LW"
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// (ByVal this_object&, ByVal list&) As Integer
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//
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// DELPHI SYNOPSIS
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//
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// function ALArchiveWriteDirectory( this_object : hALArchive;
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// list : hALEntryList ) : Integer;
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//
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// ARGUMENTS
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//
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// this_object : A reference or pointer to the ALArchive object that
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// is going to have its directory updated. The C++
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// member function version gets by without a copy of
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// this_object, since it has the implicit 'this' pointer
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// to rely on.
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//
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// DESCRIPTION
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//
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// An archive is pretty simple. It has a bunch of compressed objects, and
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// a directory. You can read the entire directory in an archive into an
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// ALEntryList using the ReadDirectory() command. You can then jack with
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// the entries in the list as much as you want, then write the directory
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// back out with a WriteDirectory() command.
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//
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// It probably wouldn't be a good idea to change some of the items in the
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// directory. For example, the checksum of the object, it's compression
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// method, and its location in the archive are all inviolate. On the
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// other hand, changing the object name, its protection, comment or
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// timestamp all make sense.
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//
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// This function is used by internal functions in the library, but you
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// are welcome to use it as well. Just be sure that the ALEntryList you
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// are using is one that makes sense for your Archive. In particular,
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// you probably should have read in the ALEntryList from the archive in
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// advance.
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//
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// RETURNS
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//
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// The status of the archive. If things are going well, this should
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// be AL_SUCCESS.
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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 : First release. This used to be an archive
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// specific function. Now it is done using
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// this function with a mix of virtual helpers.
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#include "_openf.h"
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int AL_PROTO
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ALArchive::WriteDirectory( ALEntryList AL_DLL_FAR &list ) /* Tag public function */
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{
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ALOpenInputFile archive( *mpArchiveStorageObject );
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miCount = 0;
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mpArchiveStorageObject->Seek( mlDirectoryOffset );
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PreWriteDir();
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ALEntry *job = list.GetFirstEntry();
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while ( job ) {
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if ( job->miMark ) {
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miCount++;
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if ( mfStripPathOnInsert )
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job->mpStorageObject->mName.StripPath();
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WriteDirEntry( *job );
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}
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job = job->GetNextEntry();
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}
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PostWriteDir();
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return mStatus;
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}
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#if !defined( AL_NO_C )
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extern "C" AL_LINKAGE int AL_FUNCTION
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ALArchiveWriteDirectory( hALArchive this_object, /* Tag public function */
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hALEntryList list )
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{
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AL_ASSERT_OBJECT( this_object, ALArchive, "ALArchiveWriteDirectory" );
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AL_ASSERT_OBJECT( list, ALEntryList, "ALArchiveWriteDirectory" );
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return ( (ALArchive *) this_object )->WriteDirectory( *( (ALEntryList *) list ) );
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}
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#endif
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