libstxxl-dev 1.4.1-2build1 / usr / include / stxxl / bits / mng / bid.h

This file is indexed.

/usr/include/stxxl/bits/mng/bid.h is in libstxxl-dev 1.4.1-2build1.

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
/***************************************************************************
 *  include/stxxl/bits/mng/bid.h
 *
 *  Part of the STXXL. See http://stxxl.sourceforge.net
 *
 *  Copyright (C) 2002-2004 Roman Dementiev <dementiev@mpi-sb.mpg.de>
 *  Copyright (C) 2009, 2010 Andreas Beckmann <beckmann@cs.uni-frankfurt.de>
 *  Copyright (C) 2009 Johannes Singler <singler@ira.uka.de>
 *  Copyright (C) 2013 Timo Bingmann <tb@panthema.net>
 *
 *  Distributed under the Boost Software License, Version 1.0.
 *  (See accompanying file LICENSE_1_0.txt or copy at
 *  http://www.boost.org/LICENSE_1_0.txt)
 **************************************************************************/

#ifndef STXXL_MNG_BID_HEADER
#define STXXL_MNG_BID_HEADER

#include <cstring>
#include <ostream>
#include <iomanip>

#include <stxxl/bits/io/file.h>
#include <stxxl/bits/common/utils.h>
#include <stxxl/bits/common/simple_vector.h>

#ifndef STXXL_VERBOSE_BLOCK_LIFE_CYCLE
#define STXXL_VERBOSE_BLOCK_LIFE_CYCLE STXXL_VERBOSE2
#endif
#define FMT_BID(_bid_) "[" << (_bid_).storage->get_allocator_id() << "]0x" << std::hex << std::setfill('0') << std::setw(8) << (_bid_).offset << "/0x" << std::setw(8) << (_bid_).size

STXXL_BEGIN_NAMESPACE

//! \addtogroup mnglayer
//! \{

//! Block identifier class.
//!
//! Stores block identity, given by file and offset within the file
template <unsigned Size>
struct BID
{
    enum
    {
        size = Size,         //!< Block size
        t_size = Size        //!< Blocks size, given by the parameter
    };

    file* storage;           //!< pointer to the file of the block
    stxxl::int64 offset;     //!< offset within the file of the block

    BID() : storage(NULL), offset(0)
    { }

    bool valid() const
    {
        return storage != NULL;
    }

    BID(file* s, stxxl::int64 o) : storage(s), offset(o)
    { }

    BID(const BID& obj) : storage(obj.storage), offset(obj.offset)
    { }

    template <unsigned BlockSize>
    explicit BID(const BID<BlockSize>& obj)
        : storage(obj.storage), offset(obj.offset)
    { }

    template <unsigned BlockSize>
    BID& operator = (const BID<BlockSize>& obj)
    {
        storage = obj.storage;
        offset = obj.offset;
        return *this;
    }

    bool is_managed() const
    {
        return storage->get_allocator_id() != file::NO_ALLOCATOR;
    }
};

//! Specialization of block identifier class (BID) for variable size block size.
//!
//! Stores block identity, given by file, offset within the file, and size of the block
template <>
struct BID<0>
{
    file* storage;           //!< pointer to the file of the block
    stxxl::int64 offset;     //!< offset within the file of the block
    unsigned size;           //!< size of the block in bytes

    enum
    {
        t_size = 0           //!< Blocks size, given by the parameter
    };

    BID() : storage(NULL), offset(0), size(0)
    { }

    BID(file* f, stxxl::int64 o, unsigned s) : storage(f), offset(o), size(s)
    { }

    bool valid() const
    {
        return (storage != NULL);
    }
};

template <unsigned BlockSize>
bool operator == (const BID<BlockSize>& a, const BID<BlockSize>& b)
{
    return (a.storage == b.storage) && (a.offset == b.offset) && (a.size == b.size);
}

template <unsigned BlockSize>
bool operator != (const BID<BlockSize>& a, const BID<BlockSize>& b)
{
    return (a.storage != b.storage) || (a.offset != b.offset) || (a.size != b.size);
}

template <unsigned BlockSize>
std::ostream& operator << (std::ostream& s, const BID<BlockSize>& bid)
{
    // [0x12345678|0]0x00100000/0x00010000
    // [file ptr|file id]offset/size

    std::ios state(NULL);
    state.copyfmt(s);

    s << "[" << bid.storage << "|";
    if (bid.storage)
        s << bid.storage->get_allocator_id();
    else
        s << "?";
    s << "]0x" << std::hex << std::setfill('0') << std::setw(8) << bid.offset << "/0x" << std::setw(8) << bid.size << std::dec;

    s.copyfmt(state);
    return s;
}

template <unsigned BlockSize>
class BIDArray : public simple_vector<BID<BlockSize> >
{
public:
    BIDArray()
        : simple_vector<BID<BlockSize> >()
    { }

    BIDArray(unsigned_type size)
        : simple_vector<BID<BlockSize> >(size)
    { }
};

//! \}

STXXL_END_NAMESPACE

#endif // !STXXL_MNG_BID_HEADER
// vim: et:ts=4:sw=4

APT Browse - Built by Thomas Orozco.