pgpfilespecvtbl.c

PGP8.0源码 请认真阅读您的文件包然后写出其具体功能

/*____________________________________________________________________________
	Copyright (C) 2002 PGP Corporation
	All rights reserved.

	$Id: pgpFileSpecVTBL.c,v 1.5 2002/08/06 20:10:34 dallen Exp $
____________________________________________________________________________*/
#include "pgpPFLConfig.h"

#include "pgpMem.h"

#define PGP_USE_FILE_SPEC_PRIV	1
#include "pgpFileSpecMacPriv.h"
#include "pgpFileSpecStdPriv.h"
#include "pgpFileSpecVTBL.h"

/*____________________________________________________________________________
	This routine is needed in order to reconstruct a FileSpec that has been
	exported and now needs to be imported and formed into a valid object.
	
	Since the object doesn't exist, we don't have its vtbl and since we
	don't have its vtbl, we can't tell it to create itself.  So this forms
	the glue that allows this to happen.
____________________________________________________________________________*/
	const PGPFileSpecVTBL *
pgpGetFileSpecVTBLForType( PFLFileSpecType type )
{
	const PGPFileSpecVTBL *vtbl	= NULL;
	
	switch( type )
	{
		default:	vtbl	= NULL;	break;
		
#if PGP_MACINTOSH		/* [ */
		case kPFLFileSpecMacType:		vtbl	= GetFileSpecVTBLMac();	break;
#else					/* ] PGP_MACINTOSH [ */
		case kPFLFileSpecFullPathType:	vtbl	= GetFileSpecVTBLStd();	break;
#endif					/* ] */
	}
	
	pgpAssert( IsntNull( vtbl ) );
	return( vtbl );
}































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