elm fatfs: ERROR "FR_NO_FILE" will be raised when creating a file in an directory with many entires.

[prife]

Error "FR_NO_NAME" will be raised up, when creating a more file in an directory with too many entries. Hower it should be "FR_DENIED" or something better.

FR_DENIED
The required access was denied due to one of the following reasons:
Write mode open against the read-only file.
Deleting the read-only file or directory.
Deleting the non-empty directory or current directory.
Reading the file opened without FA_READ flag.
Any modification to the file opened without FA_WRITE flag.
Could not create the file or directory due to the directory table is full.
Could not create the directory due to the volume is full.

more: http://elm-chan.org/fsw/ff/en/rc.html

more: http://blog.csdn.net/leonwei/article/details/3980179

Test code (tested in simulator)

#include <dfs_posix.h>
static void rt_test_thread_entry(void *parameter)
{
    static int count;
    static char buf[64];
    int fd;
    for(;;)
    {
        rt_sprintf(buf, "/disk/sd/%08d.dat", count++);
        fd = open(buf, O_RDWR|O_APPEND|O_CREAT, 0);
        if (fd < 0)
        {
            rt_thread_t tid;
            tid = rt_thread_self();

            rt_kprintf("error <%d>! could not create file <%s>\n", tid->error, buf);
            /* FIXME */
            return ;
        }
        close(fd);
    }
}


    tid = rt_thread_create("test",
                           rt_test_thread_entry, RT_NULL,
                           2048, RT_THREAD_PRIORITY_MAX * 3 / 4, 20);
    if (tid != RT_NULL)
        rt_thread_startup(tid);

[BernardXiong]

What's the error code in dfs? The application should get POSIX error number and not the FatFs error number.

[prife]

the FR_NO_FILE will be converted to DFS_STATUS_ENOENT.

case FR_NO_FILE:
case FR_NO_PATH:
case FR_NO_FILESYSTEM:
status = -DFS_STATUS_ENOENT;
break;

I have submit the issue report to fatfs official website.

2013/3/14 Bernard Xiong notifications@github.com

What's the error code in dfs? The application should get POSIX error
number and not the FatFs error number.

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Reply to this email directly or view it on GitHubhttps://github.com//issues/48#issuecomment-14888623
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