2016-02-08 09:59:48 +08:00
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/*
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* File : filerw.h
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2017-10-10 00:17:58 +08:00
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* This file is part of RT-Thread GUI Engine
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* COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
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2016-02-08 09:59:48 +08:00
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*
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2017-10-10 00:17:58 +08:00
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* This program 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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2016-02-08 09:59:48 +08:00
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*
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* Change Logs:
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* Date Author Notes
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* 2009-10-16 Bernard first version
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*/
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#ifndef __RTGUI_FILERW_H__
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#define __RTGUI_FILERW_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef RTGUI_USING_DFS_FILERW
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#ifdef _WIN32_NATIVE
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#pragma warning(disable: 4996)
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <io.h>
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#else
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#include <dfs_posix.h>
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#endif
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#endif
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#include <rtgui/rtgui.h>
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#define RTGUI_FILE_SEEK_SET 0
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#define RTGUI_FILE_SEEK_CUR 1
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#define RTGUI_FILE_SEEK_END 2
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struct rtgui_filerw
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{
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int (*seek)(struct rtgui_filerw *context, rt_off_t offset, int whence);
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int (*read)(struct rtgui_filerw *context, void *buffer, rt_size_t size, rt_size_t count);
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int (*write)(struct rtgui_filerw *context, const void *buffer, rt_size_t size, rt_size_t count);
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int (*tell)(struct rtgui_filerw *context);
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int (*eof)(struct rtgui_filerw *context);
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int (*close)(struct rtgui_filerw *context);
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};
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typedef struct rtgui_filerw rtgui_filerw_t;
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struct rtgui_filerw *rtgui_filerw_create_file(const char *filename, const char *mode);
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struct rtgui_filerw *rtgui_filerw_create_mem(const rt_uint8_t *mem, rt_size_t size);
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int rtgui_filerw_seek(struct rtgui_filerw *context, rt_off_t offset, int whence);
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int rtgui_filerw_read(struct rtgui_filerw *context, void *buffer, rt_size_t size, rt_size_t count);
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int rtgui_filerw_write(struct rtgui_filerw *context, const void *buffer, rt_size_t size, rt_size_t count);
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int rtgui_filerw_tell(struct rtgui_filerw *context);
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int rtgui_filerw_eof(struct rtgui_filerw *context);
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int rtgui_filerw_close(struct rtgui_filerw *context);
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int rtgui_filerw_unlink(const char *filename);
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/* get memory data from filerw memory object */
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const rt_uint8_t *rtgui_filerw_mem_getdata(struct rtgui_filerw *context);
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#ifdef __cplusplus
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}
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#endif
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#endif
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