SYNOPSIS

#include <mtbl.h>

mtbl_res
mtbl_iter_next(struct mtbl_iter *
it
,
const uint8_t * *
key
, size_t *
len_key
,
const uint8_t * *
val
, size_t *
len_val
);

void
mtbl_iter_destroy(struct mtbl_iter **it);

DESCRIPTION

The mtbl_iter interface is used to return a sequence of one or more key-value pairs. Once the caller obtains an mtbl_iter object, mtbl_iter_next() should be repeatedly called on it until there are no more key-value entries to retrieve, at which point the iterator object must be freed by calling mtbl_iter_destroy().

RETURN VALUE

mtbl_iter_next() returns mtbl_res_success if a key-value entry was successfully retrieved, in which case key and val will point to buffers of length len_key and len_val respectively. The value mtbl_res_failure is returned if there are no more entries to read, or if the it argument is NULL.