mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-12-18 07:24:07 +00:00
89 lines
2.4 KiB
C++
89 lines
2.4 KiB
C++
/*
|
|
* Copyright (C) 2018 Matthieu Gautier <mgautier@kymeria.fr>
|
|
* 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_BLOB_H
|
|
#define ZIM_BLOB_H
|
|
|
|
#include "zim.h"
|
|
|
|
#include <iostream>
|
|
#include <string>
|
|
#include <algorithm>
|
|
#include <memory>
|
|
|
|
namespace zim
|
|
{
|
|
/**
|
|
* A blob is a pointer to data, potentially stored in an `Archive`.
|
|
*
|
|
* All `Blob`'s methods are threadsafe.
|
|
*/
|
|
class LIBZIM_API Blob
|
|
{
|
|
public: // types
|
|
using DataPtr = std::shared_ptr<const char>;
|
|
|
|
public: // functions
|
|
/**
|
|
* Constuct a empty `Blob`
|
|
*/
|
|
Blob();
|
|
|
|
/**
|
|
* Constuct `Blob` pointing to `data`.
|
|
*
|
|
* The created blob only point to the data and doesn't own it.
|
|
* User must care that data is not freed before using the blob.
|
|
*/
|
|
Blob(const char* data, size_type size);
|
|
|
|
/**
|
|
* Constuct `Blob` pointing to `data`.
|
|
*
|
|
* The created blob shares the ownership on data.
|
|
*/
|
|
Blob(const DataPtr& buffer, size_type size);
|
|
|
|
operator std::string() const { return std::string(_data.get(), _size); }
|
|
const char* data() const { return _data.get(); }
|
|
const char* end() const { return _data.get() + _size; }
|
|
size_type size() const { return _size; }
|
|
|
|
private:
|
|
DataPtr _data;
|
|
size_type _size;
|
|
};
|
|
|
|
inline std::ostream& operator<< (std::ostream& out, const Blob& blob)
|
|
{
|
|
if (blob.data())
|
|
out.write(blob.data(), blob.size());
|
|
return out;
|
|
}
|
|
|
|
inline bool operator== (const Blob& b1, const Blob& b2)
|
|
{
|
|
return b1.size() == b2.size()
|
|
&& std::equal(b1.data(), b1.data() + b1.size(), b2.data());
|
|
}
|
|
}
|
|
|
|
#endif // ZIM_BLOB_H
|