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-rw-r--r--lib/asn1/src/asn1ct_table.erl34
1 files changed, 14 insertions, 20 deletions
diff --git a/lib/asn1/src/asn1ct_table.erl b/lib/asn1/src/asn1ct_table.erl
index a5eb6d0413..2eca80eda3 100644
--- a/lib/asn1/src/asn1ct_table.erl
+++ b/lib/asn1/src/asn1ct_table.erl
@@ -22,34 +22,25 @@
%% Table abstraction module for ASN.1 compiler
-export([new/1]).
--export([new/2]).
-export([new_reuse/1]).
--export([new_reuse/2]).
-export([exists/1]).
-export([size/1]).
-export([insert/2]).
-export([lookup/2]).
-export([match/2]).
-export([to_list/1]).
--export([delete/1]). % TODO: Remove (since we run in a separate process)
+-export([delete/1]).
-%% Always creates a new table
-new(Table) -> new(Table, []).
-new(Table, Options) ->
- TableId = case get(Table) of
- undefined ->
- ets:new(Table, Options);
- _ ->
- delete(Table),
- ets:new(Table, Options)
- end,
+%% Always create a new table.
+new(Table) ->
+ undefined = get(Table), %Assertion.
+ TableId = ets:new(Table, []),
put(Table, TableId).
-%% Only create it if it doesn't exist yet
-new_reuse(Table) -> new_reuse(Table, []).
-new_reuse(Table, Options) ->
- not exists(Table) andalso new(Table, Options).
+%% Only create it if it doesn't exist yet.
+new_reuse(Table) ->
+ not exists(Table) andalso new(Table).
exists(Table) -> get(Table) =/= undefined.
@@ -63,14 +54,17 @@ match(Table, MatchSpec) -> ets:match(get(Table), MatchSpec).
to_list(Table) -> ets:tab2list(get(Table)).
+%% Deleting tables is no longer strictly necessary since each compilation
+%% runs in separate process, but it will reduce memory consumption
+%% especially when many compilations are run in parallel.
+
delete(Tables) when is_list(Tables) ->
[delete(T) || T <- Tables],
true;
delete(Table) when is_atom(Table) ->
- case get(Table) of
+ case erase(Table) of
undefined ->
true;
TableId ->
- ets:delete(TableId),
- erase(Table)
+ ets:delete(TableId)
end.