bm_zms_write()

ssize_t bm_zms_write	(	struct bm_zms_fs *	fs,
		uint32_t	id,
		const void *	data,
		size_t	len )

#include <bm_zms.h>

Write an entry to the file system.

Note

When the len parameter is equal to 0 the entry is effectively removed (it is equivalent to calling bm_zms_delete()). It is not possible to distinguish between a deleted entry and an entry with data of length 0. Once the write operation is completed, a BM_ZMS_EVT_WRITE event will be propagated to the configured event handler.

Parameters

fs	Pointer to the file system.
id	ID of the entry to be written.
data	Pointer to the data to be written.
len	Number of bytes to be written (maximum 64 KiB).

Returns

Number of bytes queued for write. On success, it will be equal to the number of bytes requested to be written or 0. On error, returns negative value of error codes defined in errno.h.

Return values

-EFAULT	if fs is NULL.
-EACCES	if BM_ZMS is still not initialized.
-EIO	if there is an internal error.
-EINVAL	if len is invalid.