bm_zms_calc_free_space()

ssize_t bm_zms_calc_free_space

(

struct bm_zms_fs *

fs

)

#include <bm_zms.h>

Calculate the available free space in the file system.

Parameters

fs	Pointer to the file system.

Returns

Number of free bytes. On success, it will be equal to the number of bytes that can still be written to the file system. Calculating the free space is a time-consuming operation, especially on SPI flash. On error, returns negative value of error codes defined in errno.h.

Return values

Number	of free bytes (>= 0) on success.
-EFAULT	if fs is NULL.
-EACCES	if BM_ZMS is still not initialized.
-EIO	if there is a memory read/write error.