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@xxxxxx>
---
reftable/merged.c | 35 -----------------------------------
reftable/merged_test.c | 19 +++++++++++++------
reftable/reftable-merged.h | 15 ---------------
reftable/stack.c | 14 +++++++++-----
4 files changed, 22 insertions(+), 61 deletions(-)
diff --git a/reftable/merged.c b/reftable/merged.c
index d127f99360..0da9dba265 100644
--- a/reftable/merged.c
+++ b/reftable/merged.c
@@ -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;
diff --git a/reftable/merged_test.c b/reftable/merged_test.c
index 530fc82d1c..33a17efcde 100644
--- a/reftable/merged_test.c
+++ b/reftable/merged_test.c
@@ -12,6 +12,7 @@ license that can be found in the LICENSE file or at
#include "basics.h"
#include "blocksource.h"
+#include "constants.h"
#include "reader.h"
#include "record.h"
#include "test_framework.h"
@@ -145,7 +146,10 @@ static void test_merged_between(void)
int i;
struct reftable_ref_record ref = { NULL };
struct reftable_iterator it = { NULL };
- int err = reftable_merged_table_seek_ref(mt, &it, "a");
+ int err;
+
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
+ err = reftable_iterator_seek_ref(&it, "a");
EXPECT_ERR(err);
err = reftable_iterator_next_ref(&it, &ref);
@@ -217,14 +221,15 @@ static void test_merged(void)
struct reftable_reader **readers = NULL;
struct reftable_merged_table *mt =
merged_table_from_records(refs, &bs, &readers, sizes, bufs, 3);
-
struct reftable_iterator it = { NULL };
- int err = reftable_merged_table_seek_ref(mt, &it, "a");
+ int err;
struct reftable_ref_record *out = NULL;
size_t len = 0;
size_t cap = 0;
int i = 0;
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
+ err = reftable_iterator_seek_ref(&it, "a");
EXPECT_ERR(err);
EXPECT(reftable_merged_table_hash_id(mt) == GIT_SHA1_FORMAT_ID);
EXPECT(reftable_merged_table_min_update_index(mt) == 1);
@@ -348,14 +353,15 @@ static void test_merged_logs(void)
struct reftable_reader **readers = NULL;
struct reftable_merged_table *mt = merged_table_from_log_records(
logs, &bs, &readers, sizes, bufs, 3);
-
struct reftable_iterator it = { NULL };
- int err = reftable_merged_table_seek_log(mt, &it, "a");
+ int err;
struct reftable_log_record *out = NULL;
size_t len = 0;
size_t cap = 0;
int i = 0;
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_LOG);
+ err = reftable_iterator_seek_log(&it, "a");
EXPECT_ERR(err);
EXPECT(reftable_merged_table_hash_id(mt) == GIT_SHA1_FORMAT_ID);
EXPECT(reftable_merged_table_min_update_index(mt) == 1);
@@ -377,7 +383,8 @@ static void test_merged_logs(void)
GIT_SHA1_RAWSZ));
}
- err = reftable_merged_table_seek_log_at(mt, &it, "a", 2);
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_LOG);
+ err = reftable_iterator_seek_log_at(&it, "a", 2);
EXPECT_ERR(err);
reftable_log_record_release(&out[0]);
err = reftable_iterator_next_log(&it, &out[0]);
diff --git a/reftable/reftable-merged.h b/reftable/reftable-merged.h
index c91a2d83a2..14d5fc9f05 100644
--- a/reftable/reftable-merged.h
+++ b/reftable/reftable-merged.h
@@ -36,21 +36,6 @@ int reftable_new_merged_table(struct reftable_merged_table **dest,
struct reftable_table *stack, size_t n,
uint32_t hash_id);
-/* returns an iterator positioned just before 'name' */
-int reftable_merged_table_seek_ref(struct reftable_merged_table *mt,
- struct reftable_iterator *it,
- const char *name);
-
-/* returns an iterator for log entry, at given update_index */
-int reftable_merged_table_seek_log_at(struct reftable_merged_table *mt,
- struct reftable_iterator *it,
- const char *name, uint64_t update_index);
-
-/* like reftable_merged_table_seek_log_at but look for the newest entry. */
-int reftable_merged_table_seek_log(struct reftable_merged_table *mt,
- struct reftable_iterator *it,
- const char *name);
-
/* returns the max update_index covered by this merged table. */
uint64_t
reftable_merged_table_max_update_index(struct reftable_merged_table *mt);
diff --git a/reftable/stack.c b/reftable/stack.c
index 03f95935e1..7af4c3fd66 100644
--- a/reftable/stack.c
+++ b/reftable/stack.c
@@ -925,7 +925,8 @@ static int stack_write_compact(struct reftable_stack *st,
goto done;
}
- err = reftable_merged_table_seek_ref(mt, &it, "");
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_REF);
+ err = reftable_iterator_seek_ref(&it, "");
if (err < 0)
goto done;
@@ -949,7 +950,8 @@ static int stack_write_compact(struct reftable_stack *st,
}
reftable_iterator_destroy(&it);
- err = reftable_merged_table_seek_log(mt, &it, "");
+ merged_table_init_iter(mt, &it, BLOCK_TYPE_LOG);
+ err = reftable_iterator_seek_log(&it, "");
if (err < 0)
goto done;
@@ -1340,9 +1342,11 @@ int reftable_stack_read_ref(struct reftable_stack *st, const char *refname,
int reftable_stack_read_log(struct reftable_stack *st, const char *refname,
struct reftable_log_record *log)
{
- struct reftable_iterator it = { NULL };
- struct reftable_merged_table *mt = reftable_stack_merged_table(st);
- int err = reftable_merged_table_seek_log(mt, &it, refname);
+ struct reftable_iterator it = {0};
+ int err;
+
+ reftable_stack_init_log_iterator(st, &it);
+ err = reftable_iterator_seek_log(&it, refname);
if (err)
goto done;
--
2.45.0
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