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reftable/merged: adapt interface to allow reuse of iterators

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Refactor the interfaces exposed by `struct reftable_merged_table` and
`struct merged_iter` such that they support iterator reuse. This is done
by separating initialization of the iterator and seeking on it.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Patrick Steinhardt
2024-05-13 10:48:01 +02:00
committed by Junio C Hamano
parent 08efe69212
commit 369b84196e
4 changed files with 22 additions and 61 deletions
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35
reftable/merged.c
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@@ -262,41 +262,6 @@ void merged_table_init_iter(struct reftable_merged_table *mt,
iterator_from_merged_iter(it, mi);
}
int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
struct reftable_iterator *it,
const char *name)
{
struct reftable_record rec = {
.type = BLOCK_TYPE_REF,
.u.ref = {
.refname = (char *)name,
},
};
merged_table_init_iter(mt, it, BLOCK_TYPE_REF);
return iterator_seek(it, &rec);
}
int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt,
struct reftable_iterator *it,
const char *name, uint64_t update_index)
{
struct reftable_record rec = { .type = BLOCK_TYPE_LOG,
.u.log = {
.refname = (char *)name,
.update_index = update_index,
} };
merged_table_init_iter(mt, it, BLOCK_TYPE_LOG);
return iterator_seek(it, &rec);
}
int reftable_merged_table_seek_log(struct reftable_merged_table *mt,
struct reftable_iterator *it,
const char *name)
{
uint64_t max = ~((uint64_t)0);
return reftable_merged_table_seek_log_at(mt, it, name, max);
}
uint32_t reftable_merged_table_hash_id(struct reftable_merged_table *mt)
{
return mt->hash_id;