/usr/include/zim/cluster.h is in libzim-dev 1.4-2.1.
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 | /*
* Copyright (C) 2009 Tommi Maekitalo
*
* This program 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 2 of the
* License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
* warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
* NON-INFRINGEMENT. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef ZIM_CLUSTER_H
#define ZIM_CLUSTER_H
#include <zim/zim.h>
#include <zim/refcounted.h>
#include <zim/smartptr.h>
#include <zim/fstream.h>
#include <iosfwd>
#include <vector>
namespace zim
{
class Blob;
class Cluster;
class ClusterImpl : public RefCounted
{
friend std::ostream& operator<< (std::ostream& out, const ClusterImpl& blobImpl);
typedef std::vector<size_type> Offsets;
typedef std::vector<char> Data;
CompressionType compression;
Offsets offsets;
Data _data;
offset_type startOffset;
ifstream* lazy_read_stream;
offset_type read_header(std::istream& in);
void read_content(std::istream& in);
void write(std::ostream& out) const;
void set_lazy_read(ifstream* in) {
lazy_read_stream = in;
}
bool is_fully_initialised() const { return lazy_read_stream == 0; }
void finalise_read();
const Data& data() const {
if ( !is_fully_initialised() )
{
const_cast<ClusterImpl*>(this)->finalise_read();
}
return _data;
}
public:
ClusterImpl();
void setCompression(CompressionType c) { compression = c; }
CompressionType getCompression() const { return compression; }
bool isCompressed() const { return compression == zimcompZip || compression == zimcompBzip2 || compression == zimcompLzma; }
size_type getCount() const { return offsets.size() - 1; }
const char* getData(unsigned n) const { return &data()[ offsets[n] ]; }
size_type getSize(unsigned n) const { return offsets[n+1] - offsets[n]; }
size_type getSize() const { return offsets.size() * sizeof(size_type) + data().size(); }
offset_type getOffset(size_type n) const { return startOffset + offsets[n]; }
Blob getBlob(size_type n) const;
void clear();
void addBlob(const Blob& blob);
void addBlob(const char* data, unsigned size);
void init_from_stream(ifstream& in, offset_type offset);
};
class Cluster
{
friend std::ostream& operator<< (std::ostream& out, const Cluster& blob);
SmartPtr<ClusterImpl> impl;
ClusterImpl* getImpl();
public:
Cluster();
void setCompression(CompressionType c) { getImpl()->setCompression(c); }
CompressionType getCompression() const { return impl ? impl->getCompression() : zimcompNone; }
bool isCompressed() const
{ return impl && (impl->getCompression() == zimcompZip
|| impl->getCompression() == zimcompBzip2
|| impl->getCompression() == zimcompLzma); }
const char* getBlobPtr(size_type n) const { return impl->getData(n); }
size_type getBlobSize(size_type n) const { return impl->getSize(n); }
offset_type getBlobOffset(size_type n) const { return impl->getOffset(n); }
Blob getBlob(size_type n) const;
size_type count() const { return impl ? impl->getCount() : 0; }
size_type size() const { return impl ? impl->getSize(): sizeof(size_type); }
void clear() { if (impl) impl->clear(); }
void addBlob(const char* data, unsigned size) { getImpl()->addBlob(data, size); }
void addBlob(const Blob& blob) { getImpl()->addBlob(blob); }
operator bool() const { return impl; }
void init_from_stream(ifstream& in, offset_type offset);
};
std::ostream& operator<< (std::ostream& out, const ClusterImpl& blobImpl);
std::ostream& operator<< (std::ostream& out, const Cluster& blob);
}
#endif // ZIM_CLUSTER_H
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