libopenraw
memstream.hpp
1/* -*- Mode: C++ -*- */
2/*
3 * libopenraw - memstream.h
4 *
5 * Copyright (C) 2007-2016 Hubert Figuière
6 *
7 * This library is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public License
9 * as published by the Free Software Foundation, either version 3 of
10 * the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library. If not, see
19 * <http://www.gnu.org/licenses/>.
20 */
21
22#ifndef OR_INTERNALS_IO_MEMSTREAM_H_
23#define OR_INTERNALS_IO_MEMSTREAM_H_
24
25#include <stddef.h>
26#include <sys/types.h>
27
28#include <libopenraw/consts.h>
29
30#include "io/stream.hpp"
31
32namespace OpenRaw {
33namespace IO {
34
35class MemStream
36 : public Stream
37{
38public:
39 MemStream(void *ptr, size_t s);
40
41 virtual ~MemStream()
42 {}
43
44 MemStream(const MemStream& f) = delete;
45 MemStream & operator=(const MemStream&) = delete;
46
47 virtual or_error open() override;
48 virtual int close() override;
49 virtual int seek(off_t offset, int whence) override;
50 virtual int read(void *buf, size_t count) override;
51 virtual off_t filesize() override;
52
53
54private:
55 void * m_ptr;
56 size_t m_size;
57 unsigned char * m_current;
58};
59
60}
61}
62
63#endif
virtual int close() override
Definition memstream.cpp:51
virtual int read(void *buf, size_t count) override
Definition memstream.cpp:88
virtual or_error open() override
Definition memstream.cpp:44
virtual int seek(off_t offset, int whence) override
Definition memstream.cpp:57
Stream(const char *filename)
Definition stream.cpp:30
CIFF is the container for CRW files. It is an attempt from Canon to make this a standard....
Definition arwfile.cpp:30