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import RT-Thread@9217865c without bsp, libcpu and components/net

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Zihao Yu 2023-05-20 16:23:33 +08:00
commit e2376a3709
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examples/file/seekdir.c Normal file
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2011-06-02 Bernard first version
* 2020-04-12 Jianjia Ma add msh cmd
*/
#include <dfs_file.h>
#include <unistd.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/statfs.h>
void seekdir_test(void)
{
DIR * dirp;
long save3 = 0;
int i = 0;
struct dirent *dp;
dirp = opendir ("/");
save3 = telldir(dirp);
for (dp = readdir(dirp); dp != RT_NULL; dp = readdir(dirp))
{
rt_kprintf("direntry: %s\n", dp->d_name);
/* save the pointer of the third directory */
if (i++ == 3)
{
save3 = telldir(dirp);
}
}
/* get back to the third directory */
seekdir (dirp, save3);
rt_kprintf("seek dientry to: %d\n", save3);
for (dp = readdir(dirp); dp != RT_NULL; dp = readdir(dirp))
{
rt_kprintf("direntry: %s\n", dp->d_name);
}
/* close the directory */
closedir (dirp);
}
#ifdef RT_USING_FINSH
#include <finsh.h>
FINSH_FUNCTION_EXPORT(seekdir_test, perform directory seek test);
MSH_CMD_EXPORT(seekdir_test, perform directory seek test);
#endif /* RT_USING_FINSH */