refactor(ds): Add a wrapper to the store batch API

apps/emqx_durable_storage/src/emqx_ds_replication_layer.erl

@@ -39,7 +39,7 @@
     do_next_v1/4
 ]).
 
--export_type([shard_id/0, builtin_db_opts/0, stream/0, iterator/0, message_id/0]).
+-export_type([shard_id/0, builtin_db_opts/0, stream/0, iterator/0, message_id/0, batch/0]).
 
 -include_lib("emqx_utils/include/emqx_message.hrl").
 
@@ -91,6 +91,13 @@
 
 -type message_id() :: emqx_ds_storage_layer:message_id().
 
+-record(batch, {
+    messages :: [emqx_types:message()],
+    misc = #{} :: map()
+}).
+
+-type batch() :: #batch{}.
+
 %%================================================================================
 %% API functions
 %%================================================================================
@@ -123,7 +130,8 @@ drop_db(DB) ->
 store_batch(DB, Messages, Opts) ->
     Shard = shard_of_messages(DB, Messages),
     Node = node_of_shard(DB, Shard),
-    emqx_ds_proto_v1:store_batch(Node, DB, Shard, Messages, Opts).
+    Batch = #batch{messages = Messages},
+    emqx_ds_proto_v1:store_batch(Node, DB, Shard, Batch, Opts).
 
 -spec get_streams(emqx_ds:db(), emqx_ds:topic_filter(), emqx_ds:time()) ->
     [{emqx_ds:stream_rank(), stream()}].
@@ -202,12 +210,12 @@ do_drop_db_v1(DB) ->
 -spec do_store_batch_v1(
     emqx_ds:db(),
     emqx_ds_replication_layer:shard_id(),
-    [emqx_types:message()],
+    batch(),
     emqx_ds:message_store_opts()
 ) ->
     emqx_ds:store_batch_result().
-do_store_batch_v1(DB, Shard, Batch, Options) ->
-    emqx_ds_storage_layer:store_batch({DB, Shard}, Batch, Options).
+do_store_batch_v1(DB, Shard, #batch{messages = Messages}, Options) ->
+    emqx_ds_storage_layer:store_batch({DB, Shard}, Messages, Options).
 
 -spec do_get_streams_v1(
     emqx_ds:db(), emqx_ds_replicationi_layer:shard_id(), emqx_ds:topic_filter(), emqx_ds:time()

apps/emqx_durable_storage/src/proto/emqx_ds_proto_v1.erl

@@ -75,7 +75,7 @@ next(Node, DB, Shard, Iter, BatchSize) ->
     node(),
     emqx_ds:db(),
     emqx_ds_replication_layer:shard_id(),
-    [emqx_types:message()],
+    emqx_ds_replication_layer:batch(),
     emqx_ds:message_store_opts()
 ) ->
     emqx_ds:store_batch_result().