885045ef42
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@177 bbd45198-f89e-11dd-88c7-29a3b14d5316
48 lines
1.8 KiB
C
48 lines
1.8 KiB
C
/*
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* File : filerw.h
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* This file is part of RT-Thread RTOS
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* COPYRIGHT (C) 2006 - 2009, RT-Thread Development Team
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rt-thread.org/license/LICENSE
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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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#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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/* 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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#endif
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