osiris_log_manifest: Add close_manifest/1

Author: the-mikedavis

src/osiris_log.erl

@@ -58,6 +58,7 @@
 %% osiris_log_manifest callbacks (default implementations)
 -export([init_manifest/2,
          finalize_manifest/1,
+         close_manifest/1,
          handle_event/2,
          fix_corrupted_files/1,
          truncate_to/3,
@@ -1805,10 +1806,12 @@ needs_handling(_, _, _) ->
 close(#?MODULE{cfg = #cfg{counter_id = CntId,
                           readers_counter_fun = Fun},
                fd = SegFd,
-               index_fd = IdxFd}) ->
+               index_fd = IdxFd,
+               manifest = {ManifestMod, Manifest}}) ->
     close_fd(IdxFd),
     close_fd(SegFd),
     Fun(-1),
+    ok = ManifestMod:close_manifest(Manifest),
     case CntId of
         undefined ->
             ok;
@@ -3333,6 +3336,9 @@ finalize_manifest(#manifest{} = Manifest0) ->
     %% The index files list might be long. Clear it after init to save memory.
     Manifest0#manifest{index_files = undefined}.
 
+close_manifest(#manifest{}) ->
+    ok.
+
 handle_event(_Event, Manifest) ->
     Manifest.
 

src/osiris_log_manifest.erl

@@ -21,6 +21,8 @@
 %% init.
 -callback finalize_manifest(state()) -> state().
 
+-callback close_manifest(state()) -> ok.
+
 -callback handle_event(event(), state()) -> state().
 
 -callback fix_corrupted_files(state()) -> state().