readpath.cpp

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
 * available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 
 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, FITNESS 
 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
 * 
 * Technology Compatibility Kit Test Suite(s) Location: 
 *    http://www.helixcommunity.org/content/tck 
 * 
 * Contributor(s): 
 *  
 * ***** END LICENSE BLOCK ***** */ 

#include "dllpath.h"
#include "readpath.h"
#include "hxbuffer.h"
#include "pref.h"
#include "hlxosstr.h"

#include "hxheap.h"
#include "hxver.h"

#ifdef _DEBUG
#undef HX_THIS_FILE		
static const char HX_THIS_FILE[] = __FILE__;
#endif	

HX_RESULT ReadDLLAccessPathsFromPrefs()
{
#ifndef _VXWORKS
    if(!GetDLLAccessPath())
	return HXR_FAILED;

    CPref* pPreferences = CPref::open_shared_pref(HXVER_COMMUNITY);
    if(pPreferences)
    {
	for(UINT16 nIndex = 0; nIndex < DLLTYPE_NUMBER; nIndex++)
	{
	    IHXBuffer* pBuffer = NULL;
	    if(pPreferences->read_pref(GetDLLAccessPath()->GetLibTypeName(nIndex), pBuffer) == HXR_OK)
	    {
		GetDLLAccessPath()->SetPath(nIndex, (const char*)pBuffer->GetBuffer());
		HX_RELEASE(pBuffer);
	    }
	}

	delete pPreferences;
    }
#endif
    return HXR_OK;
}

HX_RESULT ReadUnsetPathsFromPrefs()
{
#ifndef _VXWORKS
    if(!GetDLLAccessPath())
	return HXR_FAILED;

    CPref* pPreferences = CPref::open_shared_pref(HXVER_COMMUNITY);
    if(pPreferences)
    {
	for(UINT16 nIndex = 0; nIndex < DLLTYPE_NUMBER; nIndex++)
	{
	    IHXBuffer* pBuffer = NULL;

	    if (GetDLLAccessPath()->GetPath(nIndex))
	    {
		continue;
	    }

	    if(pPreferences->read_pref(GetDLLAccessPath()->GetLibTypeName(nIndex), pBuffer) == HXR_OK)
	    {
		GetDLLAccessPath()->SetPath(nIndex, (const char*)pBuffer->GetBuffer());
		HX_RELEASE(pBuffer);
	    }
	}

	delete pPreferences;
    }
#endif
    return HXR_OK;
}

#ifdef _WIN32
/////////////////////////////////////////////////////////////////////////////////////////////////////////////
//CreatePath:
//Recursively creates path from given file path string (strPath).  
//Returns true if successful, false otherwise
BOOL
DirCreatePath( CHXString strPath )
{
    // Trim off trailing slash - ::CreateDirectory() will crash if present
    if ( strPath.ReverseFind( '\\' ) == strPath.GetLength() - 1 )
        strPath = strPath.Left( strPath.GetLength() - 1 );

    // Try to create the directory as-is
    if ( 0 != ::CreateDirectory( OS_STRING((const char*)strPath), NULL ) )
        return TRUE;

    // ::CreateDirectory() will fail if the dir already exists
    DWORD dwErr = ::GetLastError();
    if ( ERROR_ALREADY_EXISTS == dwErr )
        return TRUE;

    // If that failed, trim off one sub dir and try to create that
    int nPos = strPath.ReverseFind( '\\' );
    if ( -1 == nPos )
        return FALSE;

    CHXString szSubPath = strPath.Left( nPos + 1 );
    if ( !DirCreatePath( szSubPath ) )
        return FALSE;

    // Creating the subdir succeeded, so now we should be able to create the original dir
    if ( 0 != ::CreateDirectory( OS_STRING((const char*)strPath), NULL ) )
        return TRUE;
    else
        return FALSE;
}
#endif