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| author | Junio C Hamano <gitster@pobox.com> | 2024-12-10 10:04:57 +0900 |
|---|---|---|
| committer | Junio C Hamano <gitster@pobox.com> | 2024-12-10 10:04:58 +0900 |
| commit | 7041902dfa16b6f4122b9b91e1c8b21a3f58cebd (patch) | |
| tree | 2a1688419325be4932a9c145e8d9978950b37919 /t/unit-tests | |
| parent | de9278127e107455fda269d2db280782d77e5eba (diff) | |
| parent | 7cf65e266020f23d31863a1f9508f375be818071 (diff) | |
| download | git-7041902dfa16b6f4122b9b91e1c8b21a3f58cebd.tar.gz | |
Merge branch 'ps/reftable-iterator-reuse'
Optimize reading random references out of the reftable backend by
allowing reuse of iterator objects.
* ps/reftable-iterator-reuse:
refs/reftable: reuse iterators when reading refs
reftable/merged: drain priority queue on reseek
reftable/stack: add mechanism to notify callers on reload
refs/reftable: refactor reflog expiry to use reftable backend
refs/reftable: refactor reading symbolic refs to use reftable backend
refs/reftable: read references via `struct reftable_backend`
refs/reftable: figure out hash via `reftable_stack`
reftable/stack: add accessor for the hash ID
refs/reftable: handle reloading stacks in the reftable backend
refs/reftable: encapsulate reftable stack
Diffstat (limited to 't/unit-tests')
| -rw-r--r-- | t/unit-tests/t-reftable-merged.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/t/unit-tests/t-reftable-merged.c b/t/unit-tests/t-reftable-merged.c index 2591b5e597..a12bd0e1a3 100644 --- a/t/unit-tests/t-reftable-merged.c +++ b/t/unit-tests/t-reftable-merged.c @@ -273,6 +273,78 @@ static void t_merged_seek_multiple_times(void) reftable_free(sources); } +static void t_merged_seek_multiple_times_without_draining(void) +{ + struct reftable_ref_record r1[] = { + { + .refname = (char *) "a", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = { 1 }, + }, + { + .refname = (char *) "c", + .update_index = 1, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = { 2 }, + } + }; + struct reftable_ref_record r2[] = { + { + .refname = (char *) "b", + .update_index = 2, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = { 3 }, + }, + { + .refname = (char *) "d", + .update_index = 2, + .value_type = REFTABLE_REF_VAL1, + .value.val1 = { 4 }, + }, + }; + struct reftable_ref_record *refs[] = { + r1, r2, + }; + size_t sizes[] = { + ARRAY_SIZE(r1), ARRAY_SIZE(r2), + }; + struct reftable_buf bufs[] = { + REFTABLE_BUF_INIT, REFTABLE_BUF_INIT, + }; + struct reftable_block_source *sources = NULL; + struct reftable_reader **readers = NULL; + struct reftable_ref_record rec = { 0 }; + struct reftable_iterator it = { 0 }; + struct reftable_merged_table *mt; + int err; + + mt = merged_table_from_records(refs, &sources, &readers, sizes, bufs, 2); + merged_table_init_iter(mt, &it, BLOCK_TYPE_REF); + + err = reftable_iterator_seek_ref(&it, "b"); + check(!err); + err = reftable_iterator_next_ref(&it, &rec); + check(!err); + err = reftable_ref_record_equal(&rec, &r2[0], REFTABLE_HASH_SIZE_SHA1); + check(err == 1); + + err = reftable_iterator_seek_ref(&it, "a"); + check(!err); + err = reftable_iterator_next_ref(&it, &rec); + check(!err); + err = reftable_ref_record_equal(&rec, &r1[0], REFTABLE_HASH_SIZE_SHA1); + check(err == 1); + + for (size_t i = 0; i < ARRAY_SIZE(bufs); i++) + reftable_buf_release(&bufs[i]); + readers_destroy(readers, ARRAY_SIZE(refs)); + reftable_ref_record_release(&rec); + reftable_iterator_destroy(&it); + reftable_merged_table_free(mt); + reftable_free(sources); +} + static struct reftable_merged_table * merged_table_from_log_records(struct reftable_log_record **logs, struct reftable_block_source **source, @@ -467,6 +539,7 @@ int cmd_main(int argc UNUSED, const char *argv[] UNUSED) TEST(t_merged_logs(), "merged table with multiple log updates for same ref"); TEST(t_merged_refs(), "merged table with multiple updates to same ref"); TEST(t_merged_seek_multiple_times(), "merged table can seek multiple times"); + TEST(t_merged_seek_multiple_times_without_draining(), "merged table can seek multiple times without draining"); TEST(t_merged_single_record(), "ref occurring in only one record can be fetched"); return test_done(); |