fcb_walk¶
typedef int (*fcb_walk_cb)(struct fcb_entry *loc, void *arg);
int fcb_walk(struct fcb *fcb, struct flash_area *area, fcb_walk_cb cb,
void *cb_arg);
Walks over all log entries in FCB. Callback function cb gets called for every entry. If cb wants to stop the walk, it should return a non-zero value.
If specific flash_area is specified, only entries within that sector are walked over.
Entry data can be read within the callback using flash_area_read(), using loc->fe_area, loc->fe_data_off, and loc->fe_data_len as arguments.
Arguments¶
Arguments |
Description |
|---|---|
fcb |
Points to FCB where data is written to. |
area |
Optional. Pointer to specific entry in fcb’s array of sectors. |
cb |
Callback function which gets called for every valid entry fcb_walk encounters. |
cb_arg |
Optional. Parameter which gets passed to callback function. |
Returned values¶
Returns 0 on success; nonzero on failure.