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authorRickard Green <[email protected]>2017-01-23 21:26:22 +0100
committerRickard Green <[email protected]>2017-02-06 19:54:48 +0100
commit2a78349342b9f72651c016b650321bb317098a3c (patch)
treea859e377aa9426863fe381ef30bd940a2c7935dd /lib
parent8d4dd97bcbd0988b08f8f8141ec7cfb17a16aa4a (diff)
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Use magic refs for compiled match specs
Diffstat (limited to 'lib')
-rw-r--r--lib/stdlib/src/dets.erl7
-rw-r--r--lib/stdlib/src/ets.erl18
-rw-r--r--lib/stdlib/test/dets_SUITE.erl9
3 files changed, 18 insertions, 16 deletions
diff --git a/lib/stdlib/src/dets.erl b/lib/stdlib/src/dets.erl
index 5bc9475fc8..e81383775b 100644
--- a/lib/stdlib/src/dets.erl
+++ b/lib/stdlib/src/dets.erl
@@ -1063,11 +1063,8 @@ foldl_bins([Bin | Bins], MP, Terms) ->
compile_match_spec(select, ?PATTERN_TO_OBJECT_MATCH_SPEC('_') = Spec) ->
{Spec, true};
compile_match_spec(select, Spec) ->
- case catch ets:match_spec_compile(Spec) of
- X when is_binary(X) ->
- {Spec, {match_spec, X}};
- _ ->
- badarg
+ try {Spec, {match_spec, ets:match_spec_compile(Spec)}}
+ catch error:_ -> badarg
end;
compile_match_spec(object, Pat) ->
compile_match_spec(select, ?PATTERN_TO_OBJECT_MATCH_SPEC(Pat));
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index 20de06fd0b..d6fd1e3ea1 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -51,8 +51,8 @@
-type tab() :: atom() | tid().
-type type() :: set | ordered_set | bag | duplicate_bag.
-type continuation() :: '$end_of_table'
- | {tab(),integer(),integer(),binary(),list(),integer()}
- | {tab(),_,_,integer(),binary(),list(),integer(),integer()}.
+ | {tab(),integer(),integer(),comp_match_spec(),list(),integer()}
+ | {tab(),_,_,integer(),comp_match_spec(),list(),integer(),integer()}.
-opaque tid() :: integer().
@@ -488,7 +488,7 @@ update_element(_, _, _) ->
%%% End of BIFs
--opaque comp_match_spec() :: binary(). %% this one is REALLY opaque
+-opaque comp_match_spec() :: reference().
-spec match_spec_run(List, CompiledMatchSpec) -> list() when
List :: [tuple()],
@@ -505,28 +505,28 @@ match_spec_run(List, CompiledMS) ->
repair_continuation('$end_of_table', _) ->
'$end_of_table';
%% ordered_set
-repair_continuation(Untouched = {Table,Lastkey,EndCondition,N2,Bin,L2,N3,N4}, MS)
+repair_continuation(Untouched = {Table,Lastkey,EndCondition,N2,MSRef,L2,N3,N4}, MS)
when %% (is_atom(Table) or is_integer(Table)),
is_integer(N2),
- byte_size(Bin) =:= 0,
+ %% is_reference(MSRef),
is_list(L2),
is_integer(N3),
is_integer(N4) ->
- case ets:is_compiled_ms(Bin) of
+ case ets:is_compiled_ms(MSRef) of
true ->
Untouched;
false ->
{Table,Lastkey,EndCondition,N2,ets:match_spec_compile(MS),L2,N3,N4}
end;
%% set/bag/duplicate_bag
-repair_continuation(Untouched = {Table,N1,N2,Bin,L,N3}, MS)
+repair_continuation(Untouched = {Table,N1,N2,MSRef,L,N3}, MS)
when %% (is_atom(Table) or is_integer(Table)),
is_integer(N1),
is_integer(N2),
- byte_size(Bin) =:= 0,
+ %% is_reference(MSRef),
is_list(L),
is_integer(N3) ->
- case ets:is_compiled_ms(Bin) of
+ case ets:is_compiled_ms(MSRef) of
true ->
Untouched;
false ->
diff --git a/lib/stdlib/test/dets_SUITE.erl b/lib/stdlib/test/dets_SUITE.erl
index aa31fdde5a..95c9b47465 100644
--- a/lib/stdlib/test/dets_SUITE.erl
+++ b/lib/stdlib/test/dets_SUITE.erl
@@ -3012,8 +3012,13 @@ repair_continuation(Config) ->
MS = [{'_',[],[true]}],
- {[true], C1} = dets:select(Tab, MS, 1),
- C2 = binary_to_term(term_to_binary(C1)),
+ SRes = term_to_binary(dets:select(Tab, MS, 1)),
+ %% Get rid of compiled match spec
+ lists:foreach(fun (P) ->
+ garbage_collect(P)
+ end, processes()),
+ {[true], C2} = binary_to_term(SRes),
+
{'EXIT', {badarg, _}} = (catch dets:select(C2)),
C3 = dets:repair_continuation(C2, MS),
{[true], C4} = dets:select(C3),