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lib
io
stream.h
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/*
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* libopenraw - stream.h
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*
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* Copyright (C) 2006 Hubert Figuière
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*
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* This library is free software: you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*/
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#ifndef __IO_STREAM_H__
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#define __IO_STREAM_H__
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#include <sys/types.h>
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#include <unistd.h>
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#include <string>
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#include <libopenraw/libopenraw.h>
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#include "exception.h"
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namespace
OpenRaw {
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namespace
IO {
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class
Stream
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{
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public
:
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Stream
(
const
char
*filename);
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virtual
~
Stream
();
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typedef ::or_error
Error
;
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// file APIs
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virtual
Error
open
() = 0;
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virtual
int
close
() = 0;
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virtual
int
seek
(off_t offset,
int
whence) = 0;
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virtual
int
read
(
void
*buf,
size_t
count) = 0;
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virtual
off_t filesize() = 0;
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// virtual void *mmap(size_t l, off_t offset) = 0;
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// virtual int munmap(void *addr, size_t l) = 0;
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Error get_error()
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{
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return
m_error;
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}
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const
std::string &
get_path
()
const
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{
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return
m_fileName;
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}
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uint8_t readByte() throw(Internals::IOException);
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protected:
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void
set_error(
Error
error)
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{
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m_error = error;
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}
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private
:
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Stream
(
const
Stream
& f);
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Stream
& operator=(
const
Stream
&);
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std::string m_fileName;
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Error
m_error;
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};
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}
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}
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#endif
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