/usr/include/palabos/io/parallelIO.h is in libplb-dev 1.5~r1+repack1-2build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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 | /* This file is part of the Palabos library.
*
* Copyright (C) 2011-2015 FlowKit Sarl
* Route d'Oron 2
* 1010 Lausanne, Switzerland
* E-mail contact: contact@flowkit.com
*
* The most recent release of Palabos can be downloaded at
* <http://www.palabos.org/>
*
* The library Palabos is free software: you can redistribute it and/or
* modify it under the terms of the GNU Affero General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* The library 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef PARALLEL_IO_H
#define PARALLEL_IO_H
#include "core/globalDefs.h"
#include "parallelism/mpiManager.h"
#include <streambuf>
#include <istream>
#include <ostream>
#include <fstream>
#include <iostream>
#include <cstdio>
namespace plb {
/// A buffer which reads and writes nothing.
/** This buffer is designed for use in parallel programming.
* It is assigned to processors which have potentially no access
* to the file system.
*/
class DevNullBuffer : public std::streambuf {
protected:
virtual int_type overflow(int_type c) {
return EOF;
}
virtual int_type underflow() {
return EOF;
}
};
// Parallel Output Streams.
struct Parallel_ostream {
virtual ~Parallel_ostream() { }
virtual std::ostream& getOriginalStream() =0;
};
class Parallel_referring_ostream : public Parallel_ostream {
public:
Parallel_referring_ostream(std::ostream& original_ostream_)
: devNullStream(&devNullBuffer),
original_ostream(original_ostream_)
{ }
virtual std::ostream& getOriginalStream() {
if (global::mpi().isMainProcessor()) {
return original_ostream;
}
else {
return devNullStream;
}
}
private:
DevNullBuffer devNullBuffer;
std::ostream devNullStream;
std::ostream& original_ostream;
};
template<typename Value>
Parallel_ostream& operator<< (Parallel_ostream& lhs, Value const& rhs) {
lhs.getOriginalStream() << rhs;
return lhs;
}
inline Parallel_ostream& operator<< (Parallel_ostream& lhs, std::ostream& (*op)(std::ostream&)) {
lhs.getOriginalStream() << op;
return lhs;
}
class plb_ofstream : public Parallel_ostream {
public:
plb_ofstream();
explicit plb_ofstream(const char* filename,
std::ostream::openmode mode = std::ostream::out | std::ostream::trunc );
~plb_ofstream();
virtual std::ostream& getOriginalStream();
bool is_open();
void open(const char* filename, std::ostream::openmode mode = std::ostream::out | std::ostream::trunc);
void close();
private:
plb_ofstream(plb_ofstream const& rhs);
plb_ofstream& operator=(plb_ofstream const& rhs);
private:
DevNullBuffer devNullBuffer;
std::ostream devNullStream;
std::ofstream *original;
};
extern Parallel_referring_ostream pcout;
extern Parallel_referring_ostream pcerr;
extern Parallel_referring_ostream pclog;
// Parallel Input Streams.
struct Parallel_istream {
virtual ~Parallel_istream() { }
virtual std::istream& getOriginalStream() =0;
};
class Parallel_referring_istream : public Parallel_istream {
public:
Parallel_referring_istream(std::istream& original_istream_)
: original_istream(original_istream_)
{ }
virtual std::istream& getOriginalStream() {
return original_istream;
}
private:
std::istream& original_istream;
};
template<typename Value>
Parallel_istream& operator>> (Parallel_istream& lhs, Value& rhs) {
lhs.getOriginalStream() >> rhs;
return lhs;
}
inline Parallel_istream& operator>> (Parallel_istream& lhs, std::istream& (*op)(std::istream&)) {
lhs.getOriginalStream() >> op;
return lhs;
}
class plb_ifstream : public Parallel_istream {
public:
plb_ifstream();
explicit plb_ifstream(const char* filename,
std::istream::openmode mode = std::ostream::in );
~plb_ifstream();
virtual std::istream& getOriginalStream();
bool is_open();
void open(const char* filename, std::istream::openmode mode = std::ostream::in);
void close();
bool good();
private:
plb_ifstream(plb_ifstream const& rhs);
plb_ifstream& operator=(plb_ifstream const& rhs);
private:
DevNullBuffer devNullBuffer;
std::istream devNullStream;
std::ifstream *original;
};
} // namespace plb
#endif
|