Merge remote-tracking branch 'refs/remotes/map/storagegc'

1 files changed, 16 insertions, 1 deletions

diff --git a/src/storagedb.erl b/src/storagedb.erl
index c94a13e..d781033 100644
--- a/src/storagedb.erl
+++ b/src/storagedb.erl
@@ -7,7 +7,7 @@
 -behaviour(gen_server).
 %% API
 -export([start_link/0, stop/0]).
--export([add/1, fetchnewhashes/1]).
+-export([add/1, fetchnewhashes/1, lastverifiednewentry/0]).
 %% gen_server callbacks.
 -export([init/1, handle_call/3, terminate/2, handle_cast/2, handle_info/2,
          code_change/3]).
@@ -23,6 +23,10 @@ start_link() ->
 stop() ->
     call(?MODULE, stop).
 
+lastverifiednewentry_path() ->
+    {ok, Value} = application:get_env(plop, lastverifiednewentry_path),
+    Value.
+
 %%%%%%%%%%%%%%%%%%%%
 %% Public API.
 
@@ -34,6 +38,17 @@ fetchnewhashes(Index) ->
             index:getrange(newentries_path(), Index, Size - 1)
     end.
 
+lastverifiednewentry() ->
+    case atomic:readfile(lastverifiednewentry_path()) of
+        noentry ->
+            {0, none};
+        Contents ->
+            {struct, PropList} = mochijson2:decode(Contents),
+            Index = proplists:get_value(<<"index">>, PropList),
+            Hash = proplists:get_value(<<"hash">>, PropList),
+            {Index, mochihex:to_bin(binary_to_list(Hash))}
+    end.
+
 -spec add(binary()) -> ok.
 add(LeafHash) ->
     ok = call(?MODULE, {add_nosync, LeafHash}),