/usr/include/tntdb/bits/blob.h is in libtntdb-dev 1.3-4.
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 | /*
* Copyright (C) 2007-2008 Tommi Maekitalo
* Copyright (C) 2007-2008 Marc Boris Duerner
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* As a special exception, you may use this file as part of a free
* software library without restriction. Specifically, if other files
* instantiate templates or use macros or inline functions from this
* file, or you compile this file and link it with other files to
* produce an executable, this file does not by itself cause the
* resulting executable to be covered by the GNU General Public
* License. This exception does not however invalidate any other
* reasons why the executable file might be covered by the GNU Library
* General Public License.
*
* This 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef TNTDB_BITS_BLOB_H
#define TNTDB_BITS_BLOB_H
#include <tntdb/iface/iblob.h>
#include <tntdb/impl/blob.h>
#include <cxxtools/smartptr.h>
namespace tntdb
{
/** @brief Binary large objects
*/
class Blob
{
public:
//! @brief Release policy for SmartPtr
template <typename T>
struct Release
{
void destroy(IBlob* blob)
{ blob->destroy(); }
};
private:
//! @brief Pointer to shared data
cxxtools::SmartPtr< IBlob, cxxtools::InternalRefCounted, Release > m_data;
public:
Blob()
: m_data( BlobImpl::emptyInstance() )
{ }
/** Construct a Blob with data of a given length
Constructs a Blob using a default implementation using new/delete
to manage the blob-data and the shared data object. The first \a len
bytes of the data pointed to by \a data are copied to this Blob.
*/
Blob(const char* data, std::size_t len)
: m_data( new BlobImpl() )
{
m_data->assign(data, len);
}
/** Construct a Blob to use a customized implementation
*/
explicit Blob(IBlob* b)
: m_data(b)
{ }
/** assigns the data to this blob object
*/
void assign(const char* data, std::size_t len)
{
// copy-on-write
if ( m_data->refs() > 1 )
{
m_data = m_data->create();
}
m_data->assign(data, len);
}
/** makes sure, the buffer it at least len bytes.
* If shrink is set, the buffer will be exactly len bytes.
* Data is not preserved when reallocated.
*/
char* reserve(std::size_t len, bool shrink = false)
{
return m_data->reserve(len, shrink);
}
bool operator==(const Blob& b) const
{
return *m_data == *b.m_data;
}
bool operator!=(const Blob& b) const
{
return !operator==(b);
}
/** Returns a pointer to the data or 0 if no data is set.
*/
const char* data() const
{
return m_data->data();
}
/** Returns the size of the data
*/
std::size_t size() const
{
return m_data->size();
}
};
}
#endif // TNTDB_BITS_BLOB_H
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