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-rw-r--r--lib/stdlib/src/ets.erl442
1 files changed, 393 insertions, 49 deletions
diff --git a/lib/stdlib/src/ets.erl b/lib/stdlib/src/ets.erl
index afa914a456..ee6cff1b75 100644
--- a/lib/stdlib/src/ets.erl
+++ b/lib/stdlib/src/ets.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2011. All Rights Reserved.
+%% Copyright Ericsson AB 1996-2012. All Rights Reserved.
%%
%% The contents of this file are subject to the Erlang Public License,
%% Version 1.1, (the "License"); you may not use this file except in
@@ -42,11 +42,16 @@
-export([i/0, i/1, i/2, i/3]).
--export_type([tab/0, tid/0, match_spec/0]).
+-export_type([tab/0, tid/0, match_spec/0, comp_match_spec/0]).
%%-----------------------------------------------------------------------------
+-type access() :: public | protected | private.
-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()}.
%% a similar definition is also in erl_types
-opaque tid() :: integer().
@@ -57,59 +62,398 @@
%%-----------------------------------------------------------------------------
-%% The following functions used to be found in this module, but
-%% are now BIFs (i.e. implemented in C).
-%%
-%% all/0
-%% new/2
-%% delete/1
-%% delete/2
-%% first/1
-%% info/1
-%% info/2
-%% safe_fixtable/2
-%% lookup/2
-%% lookup_element/3
-%% insert/2
-%% is_compiled_ms/1
-%% last/1
-%% member/2
-%% next/2
-%% prev/2
-%% rename/2
-%% slot/2
-%% match/1
-%% match/2
-%% match/3
-%% match_object/1
-%% match_object/2
-%% match_object/3
-%% match_spec_compile/1
-%% match_spec_run_r/3
-%% select/1
-%% select/2
-%% select/3
-%% select_count/2
-%% select_reverse/1
-%% select_reverse/2
-%% select_reverse/3
-%% select_delete/2
-%% setopts/2
-%% update_counter/3
-%% update_element/3
-%%
+%%% BIFs
+
+-export([all/0, delete/1, delete/2, delete_all_objects/1,
+ delete_object/2, first/1, give_away/3, info/1, info/2,
+ insert/2, insert_new/2, is_compiled_ms/1, last/1, lookup/2,
+ lookup_element/3, match/1, match/2, match/3, match_object/1,
+ match_object/2, match_object/3, match_spec_compile/1,
+ match_spec_run_r/3, member/2, new/2, next/2, prev/2,
+ rename/2, safe_fixtable/2, select/1, select/2, select/3,
+ select_count/2, select_delete/2, select_reverse/1,
+ select_reverse/2, select_reverse/3, setopts/2, slot/2,
+ update_counter/3, update_element/3]).
+
+-spec all() -> [Tab] when
+ Tab :: tab().
+
+all() ->
+ erlang:nif_error(undef).
+
+-spec delete(Tab) -> true when
+ Tab :: tab().
+
+delete(_) ->
+ erlang:nif_error(undef).
+
+-spec delete(Tab, Key) -> true when
+ Tab :: tab(),
+ Key :: term().
+
+delete(_, _) ->
+ erlang:nif_error(undef).
+
+-spec delete_all_objects(Tab) -> true when
+ Tab :: tab().
+
+delete_all_objects(_) ->
+ erlang:nif_error(undef).
+
+-spec delete_object(Tab, Object) -> true when
+ Tab :: tab(),
+ Object :: tuple().
+
+delete_object(_, _) ->
+ erlang:nif_error(undef).
+
+-spec first(Tab) -> Key | '$end_of_table' when
+ Tab :: tab(),
+ Key :: term().
+
+first(_) ->
+ erlang:nif_error(undef).
+
+-spec give_away(Tab, Pid, GiftData) -> true when
+ Tab :: tab(),
+ Pid :: pid(),
+ GiftData :: term().
+
+give_away(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec info(Tab) -> InfoList | undefined when
+ Tab :: tab(),
+ InfoList :: [InfoTuple],
+ InfoTuple :: {compressed, boolean()}
+ | {heir, pid() | none}
+ | {keypos, pos_integer()}
+ | {memory, non_neg_integer()}
+ | {name, atom()}
+ | {named_table, boolean()}
+ | {node, node()}
+ | {owner, pid()}
+ | {protection, access()}
+ | {size, non_neg_integer()}
+ | {type, type()}.
+
+info(_) ->
+ erlang:nif_error(undef).
+
+-spec info(Tab, Item) -> Value | undefined when
+ Tab :: tab(),
+ Item :: compressed | fixed | heir | keypos | memory
+ | name | named_table | node | owner | protection
+ | safe_fixed | size | stats | type,
+ Value :: term().
+
+info(_, _) ->
+ erlang:nif_error(undef).
+
+-spec insert(Tab, ObjectOrObjects) -> true when
+ Tab :: tab(),
+ ObjectOrObjects :: tuple() | [tuple()].
+
+insert(_, _) ->
+ erlang:nif_error(undef).
+
+-spec insert_new(Tab, ObjectOrObjects) -> boolean() when
+ Tab :: tab(),
+ ObjectOrObjects :: tuple() | [tuple()].
+
+insert_new(_, _) ->
+ erlang:nif_error(undef).
+
+-spec is_compiled_ms(Term) -> boolean() when
+ Term :: term().
+
+is_compiled_ms(_) ->
+ erlang:nif_error(undef).
+
+-spec last(Tab) -> Key | '$end_of_table' when
+ Tab :: tab(),
+ Key :: term().
+
+last(_) ->
+ erlang:nif_error(undef).
+
+-spec lookup(Tab, Key) -> [Object] when
+ Tab :: tab(),
+ Key :: term(),
+ Object :: tuple().
+
+lookup(_, _) ->
+ erlang:nif_error(undef).
+
+-spec lookup_element(Tab, Key, Pos) -> Elem when
+ Tab :: tab(),
+ Key :: term(),
+ Pos :: pos_integer(),
+ Elem :: term() | [term()].
+
+lookup_element(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec match(Tab, Pattern) -> [Match] when
+ Tab :: tab(),
+ Pattern :: match_pattern(),
+ Match :: [term()].
+
+match(_, _) ->
+ erlang:nif_error(undef).
+
+-spec match(Tab, Pattern, Limit) -> {[Match], Continuation} |
+ '$end_of_table' when
+ Tab :: tab(),
+ Pattern :: match_pattern(),
+ Limit :: pos_integer(),
+ Match :: [term()],
+ Continuation :: continuation().
+
+match(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec match(Continuation) -> {[Match], Continuation} |
+ '$end_of_table' when
+ Match :: [term()],
+ Continuation :: continuation().
+
+match(_) ->
+ erlang:nif_error(undef).
+
+-spec match_object(Tab, Pattern) -> [Object] when
+ Tab :: tab(),
+ Pattern :: match_pattern(),
+ Object :: tuple().
+
+match_object(_, _) ->
+ erlang:nif_error(undef).
+
+-spec match_object(Tab, Pattern, Limit) -> {[Match], Continuation} |
+ '$end_of_table' when
+ Tab :: tab(),
+ Pattern :: match_pattern(),
+ Limit :: pos_integer(),
+ Match :: [term()],
+ Continuation :: continuation().
+
+match_object(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec match_object(Continuation) -> {[Match], Continuation} |
+ '$end_of_table' when
+ Match :: [term()],
+ Continuation :: continuation().
+
+match_object(_) ->
+ erlang:nif_error(undef).
+
+-spec match_spec_compile(MatchSpec) -> CompiledMatchSpec when
+ MatchSpec :: match_spec(),
+ CompiledMatchSpec :: comp_match_spec().
--opaque comp_match_spec() :: any(). %% this one is REALLY opaque
+match_spec_compile(_) ->
+ erlang:nif_error(undef).
--spec match_spec_run([tuple()], comp_match_spec()) -> [term()].
+-spec match_spec_run_r(List, CompiledMatchSpec, list()) -> list() when
+ List :: [tuple()],
+ CompiledMatchSpec :: comp_match_spec().
+
+match_spec_run_r(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec member(Tab, Key) -> boolean() when
+ Tab :: tab(),
+ Key :: term().
+
+member(_, _) ->
+ erlang:nif_error(undef).
+
+-spec new(Name, Options) -> tid() | atom() when
+ Name :: atom(),
+ Options :: [Option],
+ Option :: Type | Access | named_table | {keypos,Pos}
+ | {heir, Pid :: pid(), HeirData} | {heir, none} | Tweaks,
+ Type :: type(),
+ Access :: access(),
+ Tweaks :: {write_concurrency, boolean()}
+ | {read_concurrency, boolean()}
+ | compressed,
+ Pos :: pos_integer(),
+ HeirData :: term().
+
+new(_, _) ->
+ erlang:nif_error(undef).
+
+-spec next(Tab, Key1) -> Key2 | '$end_of_table' when
+ Tab :: tab(),
+ Key1 :: term(),
+ Key2 :: term().
+
+next(_, _) ->
+ erlang:nif_error(undef).
+
+-spec prev(Tab, Key1) -> Key2 | '$end_of_table' when
+ Tab :: tab(),
+ Key1 :: term(),
+ Key2 :: term().
+
+prev(_, _) ->
+ erlang:nif_error(undef).
+
+%% Shadowed by erl_bif_types: ets:rename/2
+-spec rename(Tab, Name) -> Name when
+ Tab :: tab(),
+ Name :: atom().
+
+rename(_, _) ->
+ erlang:nif_error(undef).
+
+-spec safe_fixtable(Tab, Fix) -> true when
+ Tab :: tab(),
+ Fix :: boolean().
+
+safe_fixtable(_, _) ->
+ erlang:nif_error(undef).
+
+-spec select(Tab, MatchSpec) -> [Match] when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ Match :: term().
+
+select(_, _) ->
+ erlang:nif_error(undef).
+
+-spec select(Tab, MatchSpec, Limit) -> {[Match],Continuation} |
+ '$end_of_table' when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ Limit :: pos_integer(),
+ Match :: term(),
+ Continuation :: continuation().
+
+select(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec select(Continuation) -> {[Match],Continuation} | '$end_of_table' when
+ Match :: term(),
+ Continuation :: continuation().
+
+select(_) ->
+ erlang:nif_error(undef).
+
+-spec select_count(Tab, MatchSpec) -> NumMatched when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ NumMatched :: non_neg_integer().
+
+select_count(_, _) ->
+ erlang:nif_error(undef).
+
+-spec select_delete(Tab, MatchSpec) -> NumDeleted when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ NumDeleted :: non_neg_integer().
+
+select_delete(_, _) ->
+ erlang:nif_error(undef).
+
+-spec select_reverse(Tab, MatchSpec) -> [Match] when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ Match :: term().
+
+select_reverse(_, _) ->
+ erlang:nif_error(undef).
+
+-spec select_reverse(Tab, MatchSpec, Limit) -> {[Match],Continuation} |
+ '$end_of_table' when
+ Tab :: tab(),
+ MatchSpec :: match_spec(),
+ Limit :: pos_integer(),
+ Match :: term(),
+ Continuation :: continuation().
+
+select_reverse(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec select_reverse(Continuation) -> {[Match],Continuation} |
+ '$end_of_table' when
+ Continuation :: continuation(),
+ Match :: term().
+
+select_reverse(_) ->
+ erlang:nif_error(undef).
+
+-spec setopts(Tab, Opts) -> true when
+ Tab :: tab(),
+ Opts :: Opt | [Opt],
+ Opt :: {heir, pid(), HeirData} | {heir,none},
+ HeirData :: term().
+
+setopts(_, _) ->
+ erlang:nif_error(undef).
+
+-spec slot(Tab, I) -> [Object] | '$end_of_table' when
+ Tab :: tab(),
+ I :: non_neg_integer(),
+ Object :: tuple().
+
+slot(_, _) ->
+ erlang:nif_error(undef).
+
+-spec update_counter(Tab, Key, UpdateOp) -> Result when
+ Tab :: tab(),
+ Key :: term(),
+ UpdateOp :: {Pos, Incr} | {Pos, Incr, Threshold, SetValue},
+ Pos :: integer(),
+ Incr :: integer(),
+ Threshold :: integer(),
+ SetValue :: integer(),
+ Result :: integer();
+ (Tab, Key, [UpdateOp]) -> [Result] when
+ Tab :: tab(),
+ Key :: term(),
+ UpdateOp :: {Pos, Incr} | {Pos, Incr, Threshold, SetValue},
+ Pos :: integer(),
+ Incr :: integer(),
+ Threshold :: integer(),
+ SetValue :: integer(),
+ Result :: integer();
+ (Tab, Key, Incr) -> Result when
+ Tab :: tab(),
+ Key :: term(),
+ Incr :: integer(),
+ Result :: integer().
+
+update_counter(_, _, _) ->
+ erlang:nif_error(undef).
+
+-spec update_element(Tab, Key, ElementSpec :: {Pos, Value}) -> boolean() when
+ Tab :: tab(),
+ Key :: term(),
+ Pos :: pos_integer(),
+ Value :: term();
+ (Tab, Key, ElementSpec :: [{Pos, Value}]) -> boolean() when
+ Tab :: tab(),
+ Key :: term(),
+ Pos :: pos_integer(),
+ Value :: term().
+
+update_element(_, _, _) ->
+ erlang:nif_error(undef).
+
+%%% End of BIFs
+
+-opaque comp_match_spec() :: binary(). %% this one is REALLY opaque
+
+-spec match_spec_run(List, CompiledMatchSpec) -> list() when
+ List :: [tuple()],
+ CompiledMatchSpec :: comp_match_spec().
match_spec_run(List, CompiledMS) ->
lists:reverse(ets:match_spec_run_r(List, CompiledMS, [])).
--type continuation() :: '$end_of_table'
- | {tab(),integer(),integer(),binary(),list(),integer()}
- | {tab(),_,_,integer(),binary(),list(),integer(),integer()}.
-
-spec repair_continuation(Continuation, MatchSpec) -> Continuation when
Continuation :: continuation(),
MatchSpec :: match_spec().