From d76f0d3f57184e05eeabbe7bb382ae87149f0dd9 Mon Sep 17 00:00:00 2001 From: Patrick Steinhardt Date: Mon, 13 May 2024 10:47:47 +0200 Subject: reftable/generic: adapt interface to allow reuse of iterators Refactor the interfaces exposed by `struct reftable_table` and `struct reftable_iterator` such that they support iterator reuse. This is done by separating initialization of the iterator and seeking on it. Signed-off-by: Patrick Steinhardt Signed-off-by: Junio C Hamano --- reftable/reftable-iterator.h | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) (limited to 'reftable/reftable-iterator.h') diff --git a/reftable/reftable-iterator.h b/reftable/reftable-iterator.h index d3eee7af35..e3bf688d53 100644 --- a/reftable/reftable-iterator.h +++ b/reftable/reftable-iterator.h @@ -21,12 +21,33 @@ struct reftable_iterator { void *iter_arg; }; +/* + * Position the iterator at the ref record with given name such that the next + * call to `next_ref()` would yield the record. + */ +int reftable_iterator_seek_ref(struct reftable_iterator *it, + const char *name); + /* reads the next reftable_ref_record. Returns < 0 for error, 0 for OK and > 0: * end of iteration. */ int reftable_iterator_next_ref(struct reftable_iterator *it, struct reftable_ref_record *ref); +/* + * Position the iterator at the log record with given name and update index + * such that the next call to `next_log()` would yield the record. + */ +int reftable_iterator_seek_log_at(struct reftable_iterator *it, + const char *name, uint64_t update_index); + +/* + * Position the iterator at the newest log record with given name such that the + * next call to `next_log()` would yield the record. + */ +int reftable_iterator_seek_log(struct reftable_iterator *it, + const char *name); + /* reads the next reftable_log_record. Returns < 0 for error, 0 for OK and > 0: * end of iteration. */ -- cgit v1.3-5-g9baa