82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/**
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* \file
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* <!--
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* This file is part of BeRTOS.
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*
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* Bertos is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* As a special exception, you may use this file as part of a free software
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* library without restriction. Specifically, if other files instantiate
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* templates or use macros or inline functions from this file, or you compile
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* this file and link it with other files to produce an executable, this
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* file does not by itself cause the resulting executable to be covered by
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* the GNU General Public License. This exception does not however
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* invalidate any other reasons why the executable file might be covered by
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* the GNU General Public License.
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*
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* Copyright 2009 Develer S.r.l. (http://www.develer.com/)
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*
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* -->
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*
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* \brief KFile interface over a memory buffer.
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*
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* Convenient way to access a memory region using the KFile interface.
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*
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*
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* \author Francesco Sacchi <batt@develer.com>
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*
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* $WIZ$ module_name = "kfilemem"
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* $WIZ$ module_depends = "kfile"
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*/
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#ifndef STRUCT_KFILE_MEM
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#define STRUCT_KFILE_MEM
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#include <io/kfile.h>
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/**
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* Context for KFile over memory buffer.
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*/
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typedef struct KFileMem
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{
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KFile fd; ///< KFile base class
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void *mem; ///< Pointer to the memory buffer used.
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} KFileMem;
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/**
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* ID for KFile Mem.
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*/
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#define KFT_KFILEMEM MAKE_ID('M', 'E', 'M', '0')
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/**
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* Convert + ASSERT from generic KFile to KFileMem.
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*/
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INLINE KFileMem * KFILEMEM_CAST(KFile *fd)
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{
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ASSERT(fd->_type == KFT_KFILEMEM);
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return (KFileMem *)fd;
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}
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/**
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* Initialize KFileMem struct.
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*
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* \param km Interface to initialize.
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* \param mem Pointer to the memory buffer to operate on.
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* \param len Size of the buffer
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*/
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void kfilemem_init(KFileMem *km, void *mem, size_t len);
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#endif /* STRUCT_KFILE_MEM */
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