Removing files from a server

Bin Li1

Other Parts Discussed in Thread: SYSBIOS

Hi Everyone,

I am useing TI concerto board (TMDXCNCDH52C1). I am currently working on a project using TIRTOS with the aim to delete all the files in a folder in the SD card. If there are several files in the folder "random", such as, try.csv, try1.csv. I tried the code below which can sucessfully delete the file.

remove("fat:0:random/try.csv");

However, I would like to delete all the files in that folder together. I tried the code below, but this is not working.

remove("fat:0:random/*.csv");

or even

remove("fat:0:random/*.*")

Can anyone help with this?

Thanks in advance.

Ben

over 11 years ago

0 Alan DeMars over 11 years ago

TI__Mastermind 30830 points

It appears that the implementation of remove() (ie unlink()) does not support wild card matching.

I found this fatfs implementation that has a fat_dirread() function that uses wildcard matching to return a set of files in a directory that match a pattern.

ftp://193.170.235.123/Lernbehelfe/Altium/Bibliotheken/Software%20Platform/services/posix/filesystem/storage/fatfs/src/fat.c

Using this code as an example, you may be able to design your own custom wild-card-matching remove() API.

Alan

0 Bin Li1 over 11 years ago in reply to Alan DeMars

Expert 1305 points

Hi Alan,

Thanks for your reply. I would really like to try to change the remove() code. But can you advise me where is the .c file in ccs library for remove(). I can only find the header file in "stdio.h".

Thanks,

Ben

0 Alan DeMars over 11 years ago in reply to Bin Li1

TI__Mastermind 30830 points

Ben,

Assuming you are using the fatfs that comes with TI-RTOS, you can find the source for remove() (which calls the corresponding file driver's 'unlink' handler) in ti/sysbios/fatfs/ff.c. The function name is f_unlink().

After making your changes to ff.c, you'll need to rebuild TI-RTOS to incorporate your changes. The instructions for doing this are in section 8.1.1 of the TI-RTOS user's guide.

Alan

0 Bin Li1 over 11 years ago in reply to Alan DeMars

Expert 1305 points

Thanks Alan, I will try to change the f_unlink().

Ben

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Removing files from a server