1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 /*************************************************************************
4 * The Contents of this file are made available subject to the terms of
5 * either of the following licenses
7 * - GNU Lesser General Public License Version 2.1
8 * - Sun Industry Standards Source License Version 1.1
10 * Sun Microsystems Inc., October, 2000
12 * GNU Lesser General Public License Version 2.1
13 * =============================================
14 * Copyright 2000 by Sun Microsystems, Inc.
15 * 901 San Antonio Road, Palo Alto, CA 94303, USA
17 * This library is free software; you can redistribute it and/or
18 * modify it under the terms of the GNU Lesser General Public
19 * License version 2.1, as published by the Free Software Foundation.
21 * This library is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 * Lesser General Public License for more details.
26 * You should have received a copy of the GNU Lesser General Public
27 * License along with this library; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
32 * Sun Industry Standards Source License Version 1.1
33 * =================================================
34 * The contents of this file are subject to the Sun Industry Standards
35 * Source License Version 1.1 (the "License"); You may not use this file
36 * except in compliance with the License. You may obtain a copy of the
37 * License at http://www.openoffice.org/license.html.
39 * Software provided under this License is provided on an "AS IS" basis,
40 * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
41 * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
42 * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
43 * See the License for the specific provisions governing your rights and
44 * obligations concerning the Software.
46 * The Initial Developer of the Original Code is: IBM Corporation
48 * Copyright: 2008 by IBM Corporation
50 * All Rights Reserved.
52 * Contributor(s): _______________________________________
55 ************************************************************************/
58 namespace OpenStormBento
62 CBenValue::GetValueSize()
64 unsigned long Size
= 0;
65 pCBenValueSegment pCurr
= nullptr;
66 while ((pCurr
= GetNextValueSegment(pCurr
)) != nullptr)
67 Size
+= pCurr
->GetSize();
72 CBenValue::ReadValueData(void * pReadBuffer
, unsigned long Offset
,
73 unsigned long Amt
, unsigned long * pAmtRead
)
76 unsigned long SegOffset
= 0;
78 pCBenValueSegment pCurrSeg
= nullptr;
79 pLtcBenContainer pContainer
= GetContainer();
80 BenByte
* pBuffer
= static_cast<BenByte
*>(pReadBuffer
);
82 /// pReadBuffer -- pointer to buffer of read result, allocated outside this function
83 /// Offset -- read buffer's start offset address, relative value in the whole value stream
84 /// Amt -- read buffer's size
85 /// pAmtRead -- return the actual read size
87 /// SegOffset -- current segment's start address offset, relative value in the whole value stream
89 while ((pCurrSeg
= GetNextValueSegment(pCurrSeg
)) != nullptr)
91 if (Amt
== 0) /// whole buffer is full now, so return
94 if (SegOffset
<= Offset
&& Offset
< SegOffset
+ pCurrSeg
->GetSize()) /// begin at current segment
96 unsigned long OffsetIntoSeg
= Offset
- SegOffset
; /// relative value in this value segment stream
98 unsigned long AmtThisSeg
= UtMin(Amt
, pCurrSeg
->GetSize() -
99 OffsetIntoSeg
); /// size read in this segment, it's minimal value between Amt &
100 /// remain part from OffsetIntoSeg to the end of this segment
102 unsigned long AmtReadThisSeg
; /// actual read size in this segment
103 if (pCurrSeg
->IsImmediate())
105 UtHugeMemcpy(pBuffer
, pCurrSeg
->GetImmediateData() +
106 OffsetIntoSeg
, AmtThisSeg
);
107 AmtReadThisSeg
= AmtThisSeg
;
111 if ((Err
= pContainer
->SeekToPosition(pCurrSeg
->GetPosition() +
112 OffsetIntoSeg
)) != BenErr_OK
)
115 if ((Err
= pContainer
->Read(pBuffer
, AmtThisSeg
,
116 &AmtReadThisSeg
)) != BenErr_OK
)
120 *pAmtRead
+= AmtReadThisSeg
;
122 if (AmtThisSeg
!= AmtReadThisSeg
)
125 pBuffer
+= AmtReadThisSeg
;
126 Offset
+= AmtReadThisSeg
;
127 Amt
-= AmtReadThisSeg
;
130 SegOffset
+= pCurrSeg
->GetSize();
134 }//end namespace OpenStormBento
136 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */