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1 : : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : : /*************************************************************************
3 : : *
4 : : * The Contents of this file are made available subject to the terms of
5 : : * either of the following licenses
6 : : *
7 : : * - GNU Lesser General Public License Version 2.1
8 : : * - Sun Industry Standards Source License Version 1.1
9 : : *
10 : : * Sun Microsystems Inc., October, 2000
11 : : *
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
16 : : *
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.
20 : : *
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.
25 : : *
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,
29 : : * MA 02111-1307 USA
30 : : *
31 : : *
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.
38 : : *
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.
45 : : *
46 : : * The Initial Developer of the Original Code is: IBM Corporation
47 : : *
48 : : * Copyright: 2008 by IBM Corporation
49 : : *
50 : : * All Rights Reserved.
51 : : *
52 : : * Contributor(s): _______________________________________
53 : : *
54 : : *
55 : : ************************************************************************/
56 : : #include "first.hxx"
57 : : #include "assert.h"
58 : : namespace OpenStormBento
59 : : {
60 : :
61 : : unsigned long
62 : 0 : CBenValue::GetValueSize()
63 : : {
64 : 0 : unsigned long Size = 0;
65 : 0 : pCBenValueSegment pCurr = NULL;
66 [ # # ]: 0 : while ((pCurr = GetNextValueSegment(pCurr)) != NULL)
67 : 0 : Size += pCurr->GetSize();
68 : 0 : return Size;
69 : : }
70 : :
71 : : BenError
72 : 0 : CBenValue::ReadValueData(BenDataPtr pReadBuffer, unsigned long Offset,
73 : : unsigned long Amt, unsigned long * pAmtRead)
74 : : {
75 : : BenError Err;
76 : 0 : unsigned long SegOffset = 0;
77 : 0 : *pAmtRead = 0;
78 : 0 : pCBenValueSegment pCurrSeg = NULL;
79 : 0 : pLtcBenContainer pContainer = GetContainer();
80 : 0 : BenByteDataPtr pBuffer = (BenByteDataPtr) pReadBuffer;
81 : :
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
86 : :
87 : : /// SegOffset -- current segment's start address offset, relative value in the whole value stream
88 : :
89 [ # # ]: 0 : while ((pCurrSeg = GetNextValueSegment(pCurrSeg)) != NULL)
90 : : {
91 [ # # ]: 0 : if (Amt == 0) /// whole buffer is full now, so return
92 : 0 : return BenErr_OK;
93 : :
94 [ # # ][ # # ]: 0 : if (SegOffset <= Offset && Offset < SegOffset + pCurrSeg->GetSize()) /// begin at current segment
[ # # ]
95 : : {
96 : 0 : unsigned long OffsetIntoSeg = Offset - SegOffset; /// relative value in this value segment stream
97 : :
98 [ # # ]: 0 : 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
101 : :
102 : : unsigned long AmtReadThisSeg; /// actual read size in this segment
103 [ # # ]: 0 : if (pCurrSeg->IsImmediate())
104 : : {
105 : 0 : UtHugeMemcpy(pBuffer, pCurrSeg->GetImmediateData() +
106 : 0 : OffsetIntoSeg, AmtThisSeg);
107 : 0 : AmtReadThisSeg = AmtThisSeg;
108 : : }
109 : : else
110 : : {
111 [ # # ][ # # ]: 0 : if ((Err = pContainer->SeekToPosition(pCurrSeg->GetPosition() +
112 : 0 : OffsetIntoSeg)) != BenErr_OK)
113 : 0 : return Err;
114 : :
115 [ # # ][ # # ]: 0 : if ((Err = pContainer->Read(pBuffer, AmtThisSeg,
116 : : &AmtReadThisSeg)) != BenErr_OK)
117 : 0 : return Err;
118 : : }
119 : :
120 : 0 : *pAmtRead += AmtReadThisSeg;
121 : :
122 [ # # ]: 0 : if (AmtThisSeg != AmtReadThisSeg)
123 : 0 : return BenErr_UnexpectedEndOfFile;
124 : :
125 : 0 : pBuffer += AmtReadThisSeg;
126 : 0 : Offset += AmtReadThisSeg;
127 : 0 : Amt -= AmtReadThisSeg;
128 : : }
129 : :
130 : 0 : SegOffset += pCurrSeg->GetSize();
131 : : }
132 : 0 : return BenErr_OK;
133 : : }
134 : :
135 : : }//end namespace OpenStormBento
136 : :
137 : : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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