reftable/block: introduce `block_reader_release()`

Introduce a new function `block_reader_release()` that releases
resources acquired by the block reader. This function will be extended
in a subsequent commit.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

3 files changed, 8 insertions, 1 deletions

diff --git a/reftable/block.c b/reftable/block.c
index e65453e11b..fe836c21e5 100644
--- a/reftable/block.c
+++ b/reftable/block.c
@@ -256,6 +256,11 @@ done:
 	return err;
 }
 
+void block_reader_release(struct block_reader *br)
+{
+	reftable_block_done(&br->block);
+}
+
 uint8_t block_reader_type(struct block_reader *r)
 {
 	return r->block.data[r->header_off];
diff --git a/reftable/block.h b/reftable/block.h
index d73ed73549..601a1e0e89 100644
--- a/reftable/block.h
+++ b/reftable/block.h
@@ -81,6 +81,8 @@ int block_reader_init(struct block_reader *br, struct reftable_block *bl,
 		      uint32_t header_off, uint32_t table_block_size,
 		      int hash_size);
 
+void block_reader_release(struct block_reader *br);
+
 /* Returns the block type (eg. 'r' for refs) */
 uint8_t block_reader_type(struct block_reader *r);
 
diff --git a/reftable/reader.c b/reftable/reader.c
index f70efa2b7c..f925570bf3 100644
--- a/reftable/reader.c
+++ b/reftable/reader.c
@@ -253,7 +253,7 @@ static void table_iter_block_done(struct table_iter *ti)
 	if (!ti->bi.br) {
 		return;
 	}
-	reftable_block_done(&ti->bi.br->block);
+	block_reader_release(ti->bi.br);
 	FREE_AND_NULL(ti->bi.br);
 
 	ti->bi.last_key.len = 0;