1 /*
2  * Copyright (C) 2017 Matthieu Gautier <mgautier@kymeria.fr>
3  *
4  * This program is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU General Public License as
6  * published by the Free Software Foundation; either version 2 of the
7  * License, or (at your option) any later version.
8  *
9  * This program is distributed in the hope that it will be useful, but
10  * is provided AS IS, WITHOUT ANY WARRANTY; without even the implied
11  * warranty of MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, and
12  * NON-INFRINGEMENT.  See the GNU General Public License for more details.
13  *
14  * You should have received a copy of the GNU General Public License
15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
17  *
18  */
19 
20 #ifndef ZIM_FILE_PART_H_
21 #define ZIM_FILE_PART_H_
22 
23 #include <string>
24 #include <cstdio>
25 
26 #include <zim/zim.h>
27 
28 #include "zim_types.h"
29 #include "fs.h"
30 
31 namespace zim {
32 
33 template<typename FS=DEFAULTFS>
34 class FilePart {
35   public:
FilePart(const std::string & filename)36     FilePart(const std::string& filename) :
37         m_filename(filename),
38         m_fhandle(FS::openFile(filename)),
39         m_size(m_fhandle.getSize()) {}
FilePart(int fd)40     FilePart(int fd) :
41         m_filename(""),
42         m_fhandle(fd),
43         m_size(m_fhandle.getSize()) {}
44     ~FilePart() = default;
filename()45     const std::string& filename() const { return m_filename; };
fhandle()46     const typename FS::FD& fhandle() const { return m_fhandle; };
47 
size()48     zsize_t size() const { return m_size; };
fail()49     bool fail() const { return !m_size; };
good()50     bool good() const { return bool(m_size); };
51 
52   private:
53     const std::string m_filename;
54     typename FS::FD m_fhandle;
55     zsize_t m_size;
56 };
57 
58 };
59 
60 #endif //ZIM_FILE_PART_H_
61