refactor(sessds_state): Use macros for map keys

apps/emqx/src/emqx_persistent_session_ds_state.erl

@@ -126,21 +126,31 @@
     | ?rec
     | ?committed(?QOS_2).
 
+-define(id, id).
+-define(dirty, dirty).
+-define(metadata, metadata).
+-define(subscriptions, subscriptions).
+-define(subscription_states, subscription_states).
+-define(seqnos, seqnos).
+-define(streams, streams).
+-define(ranks, ranks).
+-define(awaiting_rel, awaiting_rel).
+
 -opaque t() :: #{
-    id := emqx_persistent_session_ds:id(),
-    dirty := boolean(),
-    metadata := metadata(),
-    subscriptions := pmap(
+    ?id := emqx_persistent_session_ds:id(),
+    ?dirty := boolean(),
+    ?metadata := metadata(),
+    ?subscriptions := pmap(
         emqx_persistent_session_ds:topic_filter(), emqx_persistent_session_ds_subs:subscription()
     ),
-    subscription_states := pmap(
+    ?subscription_states := pmap(
         emqx_persistent_session_ds_subs:subscription_state_id(),
         emqx_persistent_session_ds_subs:subscription_state()
     ),
-    seqnos := pmap(seqno_type(), emqx_persistent_session_ds:seqno()),
-    streams := pmap(emqx_ds:stream(), emqx_persistent_session_ds:stream_state()),
-    ranks := pmap(term(), integer()),
-    awaiting_rel := pmap(emqx_types:packet_id(), _Timestamp :: integer())
+    ?seqnos := pmap(seqno_type(), emqx_persistent_session_ds:seqno()),
+    ?streams := pmap(emqx_ds:stream(), emqx_persistent_session_ds:stream_state()),
+    ?ranks := pmap(term(), integer()),
+    ?awaiting_rel := pmap(emqx_types:packet_id(), _Timestamp :: integer())
 }.
 
 -define(session_tab, emqx_ds_session_tab).
@@ -152,12 +162,12 @@
 -define(awaiting_rel_tab, emqx_ds_session_awaiting_rel).
 
 -define(pmaps, [
-    {subscriptions, ?subscription_tab},
-    {subscription_states, ?subscription_states_tab},
-    {streams, ?stream_tab},
-    {seqnos, ?seqno_tab},
-    {ranks, ?rank_tab},
-    {awaiting_rel, ?awaiting_rel_tab}
+    {?subscriptions, ?subscription_tab},
+    {?subscription_states, ?subscription_states_tab},
+    {?streams, ?stream_tab},
+    {?seqnos, ?seqno_tab},
+    {?ranks, ?rank_tab},
+    {?awaiting_rel, ?awaiting_rel_tab}
 ]).
 
 %% Enable this flag if you suspect some code breaks the sequence:
@@ -358,15 +368,15 @@ new_id(Rec) ->
 -spec get_subscription(emqx_persistent_session_ds:topic_filter(), t()) ->
     emqx_persistent_session_ds_subs:subscription() | undefined.
 get_subscription(TopicFilter, Rec) ->
-    gen_get(subscriptions, TopicFilter, Rec).
+    gen_get(?subscriptions, TopicFilter, Rec).
 
 -spec fold_subscriptions(fun(), Acc, t()) -> Acc.
 fold_subscriptions(Fun, Acc, Rec) ->
-    gen_fold(subscriptions, Fun, Acc, Rec).
+    gen_fold(?subscriptions, Fun, Acc, Rec).
 
 -spec n_subscriptions(t()) -> non_neg_integer().
 n_subscriptions(Rec) ->
-    gen_size(subscriptions, Rec).
+    gen_size(?subscriptions, Rec).
 
 -spec put_subscription(
     emqx_persistent_session_ds:topic_filter(),
@@ -374,22 +384,22 @@ n_subscriptions(Rec) ->
     t()
 ) -> t().
 put_subscription(TopicFilter, Subscription, Rec) ->
-    gen_put(subscriptions, TopicFilter, Subscription, Rec).
+    gen_put(?subscriptions, TopicFilter, Subscription, Rec).
 
 -spec del_subscription(emqx_persistent_session_ds:topic_filter(), t()) -> t().
 del_subscription(TopicFilter, Rec) ->
-    gen_del(subscriptions, TopicFilter, Rec).
+    gen_del(?subscriptions, TopicFilter, Rec).
 
 %%
 
 -spec get_subscription_state(emqx_persistent_session_ds_subs:subscription_state_id(), t()) ->
     emqx_persistent_session_ds_subs:subscription_state() | undefined.
 get_subscription_state(SStateId, Rec) ->
-    gen_get(subscription_states, SStateId, Rec).
+    gen_get(?subscription_states, SStateId, Rec).
 
 -spec fold_subscription_states(fun(), Acc, t()) -> Acc.
 fold_subscription_states(Fun, Acc, Rec) ->
-    gen_fold(subscription_states, Fun, Acc, Rec).
+    gen_fold(?subscription_states, Fun, Acc, Rec).
 
 -spec put_subscription_state(
     emqx_persistent_session_ds_subs:subscription_state_id(),
@@ -397,11 +407,11 @@ fold_subscription_states(Fun, Acc, Rec) ->
     t()
 ) -> t().
 put_subscription_state(SStateId, SState, Rec) ->
-    gen_put(subscription_states, SStateId, SState, Rec).
+    gen_put(?subscription_states, SStateId, SState, Rec).
 
 -spec del_subscription_state(emqx_persistent_session_ds_subs:subscription_state_id(), t()) -> t().
 del_subscription_state(SStateId, Rec) ->
-    gen_del(subscription_states, SStateId, Rec).
+    gen_del(?subscription_states, SStateId, Rec).
 
 %%
 
@@ -410,33 +420,33 @@ del_subscription_state(SStateId, Rec) ->
 -spec get_stream(stream_key(), t()) ->
     emqx_persistent_session_ds:stream_state() | undefined.
 get_stream(Key, Rec) ->
-    gen_get(streams, Key, Rec).
+    gen_get(?streams, Key, Rec).
 
 -spec put_stream(stream_key(), emqx_persistent_session_ds:stream_state(), t()) -> t().
 put_stream(Key, Val, Rec) ->
-    gen_put(streams, Key, Val, Rec).
+    gen_put(?streams, Key, Val, Rec).
 
 -spec del_stream(stream_key(), t()) -> t().
 del_stream(Key, Rec) ->
-    gen_del(streams, Key, Rec).
+    gen_del(?streams, Key, Rec).
 
 -spec fold_streams(fun(), Acc, t()) -> Acc.
 fold_streams(Fun, Acc, Rec) ->
-    gen_fold(streams, Fun, Acc, Rec).
+    gen_fold(?streams, Fun, Acc, Rec).
 
 -spec n_streams(t()) -> non_neg_integer().
 n_streams(Rec) ->
-    gen_size(streams, Rec).
+    gen_size(?streams, Rec).
 
 %%
 
 -spec get_seqno(seqno_type(), t()) -> emqx_persistent_session_ds:seqno() | undefined.
 get_seqno(Key, Rec) ->
-    gen_get(seqnos, Key, Rec).
+    gen_get(?seqnos, Key, Rec).
 
 -spec put_seqno(seqno_type(), emqx_persistent_session_ds:seqno(), t()) -> t().
 put_seqno(Key, Val, Rec) ->
-    gen_put(seqnos, Key, Val, Rec).
+    gen_put(?seqnos, Key, Val, Rec).
 
 %%
 
@@ -444,41 +454,41 @@ put_seqno(Key, Val, Rec) ->
 
 -spec get_rank(rank_key(), t()) -> integer() | undefined.
 get_rank(Key, Rec) ->
-    gen_get(ranks, Key, Rec).
+    gen_get(?ranks, Key, Rec).
 
 -spec put_rank(rank_key(), integer(), t()) -> t().
 put_rank(Key, Val, Rec) ->
-    gen_put(ranks, Key, Val, Rec).
+    gen_put(?ranks, Key, Val, Rec).
 
 -spec del_rank(rank_key(), t()) -> t().
 del_rank(Key, Rec) ->
-    gen_del(ranks, Key, Rec).
+    gen_del(?ranks, Key, Rec).
 
 -spec fold_ranks(fun(), Acc, t()) -> Acc.
 fold_ranks(Fun, Acc, Rec) ->
-    gen_fold(ranks, Fun, Acc, Rec).
+    gen_fold(?ranks, Fun, Acc, Rec).
 
 %%
 
 -spec get_awaiting_rel(emqx_types:packet_id(), t()) -> integer() | undefined.
 get_awaiting_rel(Key, Rec) ->
-    gen_get(awaiting_rel, Key, Rec).
+    gen_get(?awaiting_rel, Key, Rec).
 
 -spec put_awaiting_rel(emqx_types:packet_id(), _Timestamp :: integer(), t()) -> t().
 put_awaiting_rel(Key, Val, Rec) ->
-    gen_put(awaiting_rel, Key, Val, Rec).
+    gen_put(?awaiting_rel, Key, Val, Rec).
 
 -spec del_awaiting_rel(emqx_types:packet_id(), t()) -> t().
 del_awaiting_rel(Key, Rec) ->
-    gen_del(awaiting_rel, Key, Rec).
+    gen_del(?awaiting_rel, Key, Rec).
 
 -spec fold_awaiting_rel(fun(), Acc, t()) -> Acc.
 fold_awaiting_rel(Fun, Acc, Rec) ->
-    gen_fold(awaiting_rel, Fun, Acc, Rec).
+    gen_fold(?awaiting_rel, Fun, Acc, Rec).
 
 -spec n_awaiting_rel(t()) -> non_neg_integer().
 n_awaiting_rel(Rec) ->
-    gen_size(awaiting_rel, Rec).
+    gen_size(?awaiting_rel, Rec).
 
 %%