yaffs_freespace() provides a rougher guess of the space. You could use that, but clearly there are threading issues if you do it that way.

yaffs_write() will return the number of bytes written.

ret = yaffs_write(...);

if ( ret != write_size)

SetMemFullError();

Regards

Charles

On Thu, Apr 14, 2016 at 7:42 PM, 曾炫錡 <airtseng@gmail.com> wrote:

Hi, I am developing YAFFS2 on ThreadX, in my application it need report error
message for user when flash memory storage full, how could I detect this error
by YAFFS service ? Is it suitable to check yaffs_freespace("mount_path") before
yaffs_write such as:

fwrite(int fd, u8* buf, int size)
{
if( size>yaffs_freespace("mount_path"))
SetMemFullErr( );

yaffs_write(fd, (const void*)buf, size);
}

Best Regards,
Ski Tseng

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