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1 | // Created on: 2008-06-20 |
2 | // Created by: Alexander GRIGORIEV |
3 | // Copyright (c) 2008-2012 OPEN CASCADE SAS |
4 | // |
5 | // The content of this file is subject to the Open CASCADE Technology Public |
6 | // License Version 6.5 (the "License"). You may not use the content of this file |
7 | // except in compliance with the License. Please obtain a copy of the License |
8 | // at http://www.opencascade.org and read it completely before using this file. |
9 | // |
10 | // The Initial Developer of the Original Code is Open CASCADE S.A.S., having its |
11 | // main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France. |
12 | // |
13 | // The Original Code and all software distributed under the License is |
14 | // distributed on an "AS IS" basis, without warranty of any kind, and the |
15 | // Initial Developer hereby disclaims all such warranties, including without |
16 | // limitation, any warranties of merchantability, fitness for a particular |
17 | // purpose or non-infringement. Please see the License for the specific terms |
18 | // and conditions governing the rights and limitations under the License. |
19 | |
7fd59977 |
20 | |
21 | #include <BinLDrivers_DocumentSection.hxx> |
22 | #include <FSD_FileHeader.hxx> |
23 | |
24 | //======================================================================= |
25 | //function : BinLDrivers_DocumentSection |
26 | //purpose : Empty constructor |
27 | //======================================================================= |
28 | |
29 | BinLDrivers_DocumentSection::BinLDrivers_DocumentSection () |
30 | : myIsPostRead (Standard_False) |
31 | { |
32 | myValue[0] = 0; |
33 | myValue[1] = 0; |
34 | } |
35 | |
36 | //======================================================================= |
37 | //function : BinLDrivers_DocumentSection |
38 | //purpose : Constructor |
39 | //======================================================================= |
40 | |
41 | BinLDrivers_DocumentSection::BinLDrivers_DocumentSection |
42 | (const TCollection_AsciiString& theName, |
43 | const Standard_Boolean isPostRead) |
44 | : myName (theName), |
45 | myIsPostRead (isPostRead) |
46 | { |
47 | myValue[0] = 0; |
48 | myValue[1] = 0; |
49 | } |
50 | |
51 | //======================================================================= |
52 | //function : Name |
53 | //purpose : |
54 | //======================================================================= |
55 | |
56 | const TCollection_AsciiString& BinLDrivers_DocumentSection::Name () const |
57 | { |
58 | return myName; |
59 | } |
60 | |
61 | //======================================================================= |
62 | //function : Offset |
63 | //purpose : |
64 | //======================================================================= |
65 | |
66 | Standard_Size BinLDrivers_DocumentSection::Offset () const |
67 | { |
68 | return myValue[0]; |
69 | } |
70 | |
71 | //======================================================================= |
72 | //function : SetOffset |
73 | //purpose : |
74 | //======================================================================= |
75 | |
76 | void BinLDrivers_DocumentSection::SetOffset (const Standard_Size theOffset) |
77 | { |
78 | myValue[0] = theOffset; |
79 | } |
80 | |
81 | //======================================================================= |
82 | //function : IsPostRead |
83 | //purpose : |
84 | //======================================================================= |
85 | |
86 | Standard_Boolean BinLDrivers_DocumentSection::IsPostRead () const |
87 | { |
88 | return myIsPostRead; |
89 | } |
90 | |
91 | //======================================================================= |
92 | //function : Length |
93 | //purpose : |
94 | //======================================================================= |
95 | |
96 | Standard_Size BinLDrivers_DocumentSection::Length () const |
97 | { |
98 | return myValue[1]; |
99 | } |
100 | |
101 | //======================================================================= |
102 | //function : SetLength |
103 | //purpose : |
104 | //======================================================================= |
105 | |
106 | void BinLDrivers_DocumentSection::SetLength (const Standard_Size theLength) |
107 | { |
108 | myValue[1] = theLength; |
109 | } |
110 | |
111 | //======================================================================= |
112 | //function : WriteTOC |
113 | //purpose : |
114 | //======================================================================= |
115 | |
116 | void BinLDrivers_DocumentSection::WriteTOC (Standard_OStream& theStream) |
117 | { |
118 | char aBuf[512]; |
119 | |
120 | if (myName.IsEmpty() == Standard_False) { |
121 | Standard_Integer * aBufSz = reinterpret_cast<Standard_Integer *> (&aBuf[0]); |
122 | const Standard_Size aBufSzSize = sizeof(aBuf) / sizeof(Standard_Integer); |
123 | aBufSz[aBufSzSize-1] = 0; |
124 | |
125 | strncpy (&aBuf[sizeof(Standard_Integer)], |
126 | myName.ToCString(), |
127 | sizeof(aBuf)-sizeof(Standard_Integer)-1); |
128 | |
129 | // Calculate the length of the buffer: Standard_Size + string. |
130 | // If the length is not multiple of Standard_Size, it is properly increased |
131 | const Standard_Size aLen = strlen (&aBuf[sizeof(Standard_Integer)]); |
132 | Standard_Size aBufSize = |
133 | (aLen/sizeof(Standard_Integer))*sizeof(Standard_Integer); |
134 | if (aBufSize < aLen) |
135 | aBufSize += sizeof(Standard_Integer); |
136 | |
137 | // Write the buffer: size + string |
138 | #if DO_INVERSE |
139 | aBufSz[0] = InverseSize ((Standard_Integer)aBufSize); |
140 | #else |
141 | aBufSz[0] = aBufSize; |
142 | #endif |
143 | theStream.write (&aBuf[0], aBufSize + sizeof(Standard_Integer)); |
144 | |
145 | // Store the address of Offset word in the file |
146 | myValue[0] = (Standard_Size) theStream.tellp(); |
147 | myValue[1] = 0; |
148 | |
149 | // Write the placeholders of Offset and Length of the section that should |
150 | // be written afterwards |
151 | aBufSz[0] = 0; |
152 | aBufSz[1] = 0; |
153 | aBufSz[2] = 0; |
154 | theStream.write (&aBuf[0], 3*sizeof(Standard_Integer)); |
155 | } |
156 | } |
157 | |
158 | //======================================================================= |
159 | //function : Write |
160 | //purpose : |
161 | //======================================================================= |
162 | |
163 | void BinLDrivers_DocumentSection::Write (Standard_OStream& theStream, |
164 | const Standard_Size theOffset) |
165 | { |
166 | const Standard_Size aSectionEnd = (Standard_Size) theStream.tellp(); |
167 | theStream.seekp(myValue[0]); |
168 | myValue[0] = theOffset; |
169 | myValue[1] = aSectionEnd - theOffset; |
170 | Standard_Integer aVal[3] = { |
171 | Standard_Integer(myValue[0]), |
172 | Standard_Integer(myValue[1]), |
173 | Standard_Integer(myIsPostRead) |
174 | }; |
175 | #if DO_INVERSE |
176 | aVal[0] = InverseSize(aVal[0]); |
177 | aVal[1] = InverseSize(aVal[1]); |
178 | aVal[2] = InverseSize(aVal[2]); |
179 | #endif |
180 | |
181 | theStream.write((char *)&aVal[0], 3*sizeof(Standard_Integer)); |
182 | theStream.seekp(aSectionEnd); |
183 | } |
184 | |
185 | //======================================================================= |
186 | //function : ReadTOC |
187 | //purpose : |
188 | //======================================================================= |
189 | |
190 | void BinLDrivers_DocumentSection::ReadTOC |
191 | (BinLDrivers_DocumentSection& theSection, |
192 | Standard_IStream& theStream) |
193 | { |
194 | char aBuf[512]; |
195 | Standard_Integer aNameBufferSize; |
196 | theStream.read ((char *)&aNameBufferSize, sizeof(Standard_Integer)); |
197 | #if DO_INVERSE |
198 | aNameBufferSize = InverseSize(aNameBufferSize); |
199 | #endif |
200 | if (aNameBufferSize > 0) { |
201 | theStream.read ((char *)&aBuf[0], (Standard_Size)aNameBufferSize); |
202 | theSection.myName = (Standard_CString)&aBuf[0]; |
203 | Standard_Integer aValue[3]; |
204 | theStream.read ((char *)&aValue[0], 3*sizeof(Standard_Integer)); |
205 | #if DO_INVERSE |
206 | aValue[0] = InverseSize (aValue[0]); |
207 | aValue[1] = InverseSize (aValue[1]); |
208 | aValue[2] = InverseSize (aValue[2]); |
209 | #endif |
210 | theSection.myValue[0] = (Standard_Size)aValue[0]; |
211 | theSection.myValue[1] = (Standard_Size)aValue[1]; |
212 | theSection.myIsPostRead = (Standard_Boolean)aValue[2]; |
213 | } |
214 | } |