File size: 5,418 Bytes
5a600cf | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | /*---------------------------------------------------------------------------*\
========= |
\\ / F ield | OpenFOAM: The Open Source CFD Toolbox
\\ / O peration | Website: https://openfoam.org
\\ / A nd | Copyright (C) 2011-2024 OpenFOAM Foundation
\\/ M anipulation |
-------------------------------------------------------------------------------
License
This file is part of OpenFOAM.
OpenFOAM is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
for more details.
You should have received a copy of the GNU General Public License
along with OpenFOAM. If not, see <http://www.gnu.org/licenses/>.
Class
Foam::OSHA1stream
Description
A Foam::OSstream for calculating SHA-1 digests
SourceFiles
OSHA1stream.C
\*---------------------------------------------------------------------------*/
#ifndef OSHA1stream_H
#define OSHA1stream_H
#include "OSstream.H"
#include "SHA1.H"
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
namespace Foam
{
/*---------------------------------------------------------------------------*\
Class sha1streambuf Declaration
\*---------------------------------------------------------------------------*/
class sha1streambuf
:
public std::streambuf
{
// Private Data
//- The SHA-1 class which processes the strings
SHA1 sha1_;
public:
// Constructors
//- Construct null
sha1streambuf()
{}
// Member Functions
//- Return the SHA-1
SHA1& sha1()
{
return sha1_;
}
//- Writes characters from the array pointed to by s
// into the controlled output sequence, until either n characters
// have been written or the end of the output sequence is reached
virtual std::streamsize xsputn(const char* s, std::streamsize n)
{
sha1_.append(s, n);
return n;
}
//- Writes c to the current position of the put pointer (pptr),
// and advances that pointer one position forward.
// If c is EOF, no characters are written and the put pointer
// (pptr) is not advanced.
// Maybe used by xsputn (C++11).
virtual int overflow(int c = EOF)
{
if (c != EOF)
{
const char cc = c;
sha1_.append(&cc, 1);
}
return c;
}
};
/*---------------------------------------------------------------------------*\
Class osha1stream Declaration
\*---------------------------------------------------------------------------*/
class osha1stream
:
virtual public std::ios,
public std::ostream
{
// Private Data
// SHA-1 stream buffer
sha1streambuf sbuf_;
public:
// Constructors
//- Construct null
osha1stream()
:
std::ostream(&sbuf_)
{}
// Member Functions
//- Return the SHA-1
SHA1& sha1()
{
return sbuf_.sha1();
}
//- Return the stream buffer
sha1streambuf* rdbuf()
{
return &sbuf_;
}
};
/*---------------------------------------------------------------------------*\
Class OSHA1stream Declaration
\*---------------------------------------------------------------------------*/
class OSHA1stream
:
public OSstream
{
public:
// Constructors
//- Construct and set stream status
OSHA1stream
(
const streamFormat format = ASCII,
const versionNumber version = currentVersion
)
:
OSstream
(
*(new osha1stream),
"OSHA1stream.sinkFile_",
format,
version
)
{}
//- Disallow default bitwise copy construction
OSHA1stream(const OSHA1stream&) = delete;
//- Destructor
~OSHA1stream()
{
delete &dynamic_cast<osha1stream&>(stdStream());
}
// Member Functions
//- Return the SHA-1
SHA1& sha1()
{
return dynamic_cast<osha1stream&>(stdStream()).sha1();
}
//- Return the SHA-1 digest for the data processed until now
SHA1Digest digest()
{
return sha1().digest();
}
//- Clear the SHA1 calculation
void rewind()
{
sha1().clear();
}
// Member Operators
//- Disallow default bitwise assignment
void operator=(const OSHA1stream&) = delete;
};
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
} // End namespace Foam
// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
#endif
// ************************************************************************* //
|