Hello, I working with FreeRTOS + FAT and i’ve got an intersting heap leakage on the function ff_chdir(). In fact when i’m using this function a MALLOC of the structure size (WorkingDirectory_t = 312 Bytes ) is used to reserve place for the current working directory. Until here every thing is alright, i can even call the function several times and the current working directory will be recognized. The problem happen when i kill the task that was using storage functions and recreate it, i can see that the heap wasn’t freed and it MALLOC again 312 bytes for the same structure. I also figured out that the pointer to the structure was set to zero after having killed the task but the heap wasn’t freed. I hope i was clear on the problem. I’m maybe missing something like a function to free all memories allocated by FAT while i am killing the task ? Best regards Thank you.

Adrien, that is a known issue. I wrote the following function which should be called by the task before it finishes: ~~~

if( ffconfigHAS_CWD == 1 )

int ff_free_CWD_space( void )
{
WorkingDirectory_t *pxSpace;

    /* Obtain the CWD used by the current task. */
    pxSpace = ( WorkingDirectory_t * ) pvTaskGetThreadLocalStoragePointer( NULL, stdioCWD_THREAD_LOCAL_OFFSET );
    if( pxSpace != NULL )
    {
        vTaskSetThreadLocalStoragePointer( NULL, stdioCWD_THREAD_LOCAL_OFFSET, ( void * ) NULL );
        ffconfigFREE( pxSpace );
    }
    return 0;
}

endif /* ffconfigHAS_CWD */

/———————————————————–/ ~~~ It will be included in the next release.

Thank you for you answer, it’s now working perfectly. best regards. Adrien

Thank you for you answer, it’s now working perfectly. best regards. Adrien

Thank you for you answer, it’s now working perfectly. best regards. Adrien