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-rw-r--r--lib/stdlib/src/dict.erl23
-rw-r--r--lib/stdlib/src/erl_eval.erl1
-rw-r--r--lib/stdlib/src/erl_parse.yrl1
-rw-r--r--lib/stdlib/src/gb_trees.erl45
-rw-r--r--lib/stdlib/src/gen_event.erl80
-rw-r--r--lib/stdlib/src/orddict.erl19
6 files changed, 144 insertions, 25 deletions
diff --git a/lib/stdlib/src/dict.erl b/lib/stdlib/src/dict.erl
index f921e28ef6..9449ba3dc2 100644
--- a/lib/stdlib/src/dict.erl
+++ b/lib/stdlib/src/dict.erl
@@ -38,7 +38,7 @@
%% Standard interface.
-export([new/0,is_key/2,to_list/1,from_list/1,size/1,is_empty/1]).
--export([fetch/2,find/2,fetch_keys/1,erase/2]).
+-export([fetch/2,find/2,fetch_keys/1,erase/2,take/2]).
-export([store/3,append/3,append_list/3,update/3,update/4,update_counter/3]).
-export([fold/3,map/2,filter/2,merge/3]).
@@ -172,6 +172,27 @@ erase_key(Key, [E|Bkt0]) ->
{[E|Bkt1],Dc};
erase_key(_, []) -> {[],0}.
+-spec take(Key, Dict) -> {Value, Dict1} | error when
+ Dict :: dict(Key, Value),
+ Dict1 :: dict(Key, Value),
+ Key :: term(),
+ Value :: term().
+
+take(Key, D0) ->
+ Slot = get_slot(D0, Key),
+ case on_bucket(fun (B0) -> take_key(Key, B0) end, D0, Slot) of
+ {D1,{Value,Dc}} ->
+ {Value, maybe_contract(D1, Dc)};
+ {_,error} -> error
+ end.
+
+take_key(Key, [?kv(Key,Val)|Bkt]) ->
+ {Bkt,{Val,1}};
+take_key(Key, [E|Bkt0]) ->
+ {Bkt1,Res} = take_key(Key, Bkt0),
+ {[E|Bkt1],Res};
+take_key(_, []) -> {[],error}.
+
-spec store(Key, Value, Dict1) -> Dict2 when
Dict1 :: dict(Key, Value),
Dict2 :: dict(Key, Value).
diff --git a/lib/stdlib/src/erl_eval.erl b/lib/stdlib/src/erl_eval.erl
index 40a34aa30f..eafee346eb 100644
--- a/lib/stdlib/src/erl_eval.erl
+++ b/lib/stdlib/src/erl_eval.erl
@@ -1306,6 +1306,7 @@ partial_eval(Expr) ->
ev_expr({op,_,Op,L,R}) -> erlang:Op(ev_expr(L), ev_expr(R));
ev_expr({op,_,Op,A}) -> erlang:Op(ev_expr(A));
ev_expr({integer,_,X}) -> X;
+ev_expr({char,_,X}) -> X;
ev_expr({float,_,X}) -> X;
ev_expr({atom,_,X}) -> X;
ev_expr({tuple,_,Es}) ->
diff --git a/lib/stdlib/src/erl_parse.yrl b/lib/stdlib/src/erl_parse.yrl
index 9cd95705af..fb5d05ec8e 100644
--- a/lib/stdlib/src/erl_parse.yrl
+++ b/lib/stdlib/src/erl_parse.yrl
@@ -156,6 +156,7 @@ type -> '#' atom '{' field_types '}' : {type, ?anno('$1'),
record, ['$2'|'$4']}.
type -> binary_type : '$1'.
type -> integer : '$1'.
+type -> char : '$1'.
type -> 'fun' '(' ')' : {type, ?anno('$1'), 'fun', []}.
type -> 'fun' '(' fun_type_100 ')' : '$3'.
diff --git a/lib/stdlib/src/gb_trees.erl b/lib/stdlib/src/gb_trees.erl
index 457287fa52..c0cdde012e 100644
--- a/lib/stdlib/src/gb_trees.erl
+++ b/lib/stdlib/src/gb_trees.erl
@@ -52,6 +52,13 @@
%% - delete_any(X, T): removes key X from tree T if the key is present
%% in the tree, otherwise does nothing; returns new tree.
%%
+%% - take(X, T): removes element with key X from tree T; returns new tree
+%% without removed element. Assumes that the key is present in the tree.
+%%
+%% - take_any(X, T): removes element with key X from tree T and returns
+%% a new tree if the key is present; otherwise does nothing and returns
+%% 'error'.
+%%
%% - balance(T): rebalances tree T. Note that this is rarely necessary,
%% but may be motivated when a large number of entries have been
%% deleted from the tree without further insertions. Rebalancing could
@@ -114,7 +121,8 @@
-export([empty/0, is_empty/1, size/1, lookup/2, get/2, insert/3,
update/3, enter/3, delete/2, delete_any/2, balance/1,
is_defined/2, keys/1, values/1, to_list/1, from_orddict/1,
- smallest/1, largest/1, take_smallest/1, take_largest/1,
+ smallest/1, largest/1, take/2, take_any/2,
+ take_smallest/1, take_largest/1,
iterator/1, iterator_from/2, next/1, map/2]).
@@ -416,6 +424,41 @@ merge(Smaller, Larger) ->
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+-spec take_any(Key, Tree1) -> {Value, Tree2} | 'error' when
+ Tree1 :: tree(Key, _),
+ Tree2 :: tree(Key, _),
+ Key :: term(),
+ Value :: term().
+
+take_any(Key, Tree) ->
+ case is_defined(Key, Tree) of
+ true -> take(Key, Tree);
+ false -> error
+ end.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+-spec take(Key, Tree1) -> {Value, Tree2} when
+ Tree1 :: tree(Key, _),
+ Tree2 :: tree(Key, _),
+ Key :: term(),
+ Value :: term().
+
+take(Key, {S, T}) when is_integer(S), S >= 0 ->
+ {Value, Res} = take_1(Key, T),
+ {Value, {S - 1, Res}}.
+
+take_1(Key, {Key1, Value, Smaller, Larger}) when Key < Key1 ->
+ {Value2, Smaller1} = take_1(Key, Smaller),
+ {Value2, {Key1, Value, Smaller1, Larger}};
+take_1(Key, {Key1, Value, Smaller, Bigger}) when Key > Key1 ->
+ {Value2, Bigger1} = take_1(Key, Bigger),
+ {Value2, {Key1, Value, Smaller, Bigger1}};
+take_1(_, {_Key, Value, Smaller, Larger}) ->
+ {Value, merge(Smaller, Larger)}.
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
-spec take_smallest(Tree1) -> {Key, Value, Tree2} when
Tree1 :: tree(Key, Value),
Tree2 :: tree(Key, Value).
diff --git a/lib/stdlib/src/gen_event.erl b/lib/stdlib/src/gen_event.erl
index ccacf658e9..4839fe4f2c 100644
--- a/lib/stdlib/src/gen_event.erl
+++ b/lib/stdlib/src/gen_event.erl
@@ -32,7 +32,9 @@
%%% Modified by Martin - uses proc_lib, sys and gen!
--export([start/0, start/1, start_link/0, start_link/1, stop/1, stop/3,
+-export([start/0, start/1, start/2,
+ start_link/0, start_link/1, start_link/2,
+ stop/1, stop/3,
notify/2, sync_notify/2,
add_handler/3, add_sup_handler/3, delete_handler/3, swap_handler/3,
swap_sup_handler/3, which_handlers/1, call/3, call/4, wake_hib/4]).
@@ -117,30 +119,64 @@
-type del_handler_ret() :: ok | term() | {'EXIT',term()}.
-type emgr_name() :: {'local', atom()} | {'global', atom()}
- | {'via', atom(), term()}.
+ | {'via', atom(), term()}.
+-type debug_flag() :: 'trace' | 'log' | 'statistics' | 'debug'
+ | {'logfile', string()}.
+-type option() :: {'timeout', timeout()}
+ | {'debug', [debug_flag()]}
+ | {'spawn_opt', [proc_lib:spawn_option()]}.
-type emgr_ref() :: atom() | {atom(), atom()} | {'global', atom()}
- | {'via', atom(), term()} | pid().
+ | {'via', atom(), term()} | pid().
-type start_ret() :: {'ok', pid()} | {'error', term()}.
%%---------------------------------------------------------------------------
-define(NO_CALLBACK, 'no callback module').
+%% -----------------------------------------------------------------
+%% Starts a generic event handler.
+%% start()
+%% start(MgrName | Options)
+%% start(MgrName, Options)
+%% start_link()
+%% start_link(MgrName | Options)
+%% start_link(MgrName, Options)
+%% MgrName ::= {local, atom()} | {global, atom()} | {via, atom(), term()}
+%% Options ::= [{timeout, Timeout} | {debug, [Flag]} | {spawn_opt,SOpts}]
+%% Flag ::= trace | log | {logfile, File} | statistics | debug
+%% (debug == log && statistics)
+%% Returns: {ok, Pid} |
+%% {error, {already_started, Pid}} |
+%% {error, Reason}
+%% -----------------------------------------------------------------
+
-spec start() -> start_ret().
start() ->
gen:start(?MODULE, nolink, ?NO_CALLBACK, [], []).
--spec start(emgr_name()) -> start_ret().
-start(Name) ->
- gen:start(?MODULE, nolink, Name, ?NO_CALLBACK, [], []).
+-spec start(emgr_name() | [option()]) -> start_ret().
+start(Name) when is_tuple(Name) ->
+ gen:start(?MODULE, nolink, Name, ?NO_CALLBACK, [], []);
+start(Options) when is_list(Options) ->
+ gen:start(?MODULE, nolink, ?NO_CALLBACK, [], Options).
+
+-spec start(emgr_name(), [option()]) -> start_ret().
+start(Name, Options) ->
+ gen:start(?MODULE, nolink, Name, ?NO_CALLBACK, [], Options).
-spec start_link() -> start_ret().
start_link() ->
gen:start(?MODULE, link, ?NO_CALLBACK, [], []).
--spec start_link(emgr_name()) -> start_ret().
-start_link(Name) ->
- gen:start(?MODULE, link, Name, ?NO_CALLBACK, [], []).
+-spec start_link(emgr_name() | [option()]) -> start_ret().
+start_link(Name) when is_tuple(Name) ->
+ gen:start(?MODULE, link, Name, ?NO_CALLBACK, [], []);
+start_link(Options) when is_list(Options) ->
+ gen:start(?MODULE, link, ?NO_CALLBACK, [], Options).
+
+-spec start_link(emgr_name(), [option()]) -> start_ret().
+start_link(Name, Options) ->
+ gen:start(?MODULE, link, Name, ?NO_CALLBACK, [], Options).
%% -spec init_it(pid(), 'self' | pid(), emgr_name(), module(), [term()], [_]) ->
init_it(Starter, self, Name, Mod, Args, Options) ->
@@ -160,7 +196,7 @@ add_sup_handler(M, Handler, Args) ->
rpc(M, {add_sup_handler, Handler, Args, self()}).
-spec notify(emgr_ref(), term()) -> 'ok'.
-notify(M, Event) -> send(M, {notify, Event}).
+notify(M, Event) -> send(M, {notify, Event}).
-spec sync_notify(emgr_ref(), term()) -> 'ok'.
sync_notify(M, Event) -> rpc(M, {sync_notify, Event}).
@@ -193,7 +229,7 @@ stop(M) ->
stop(M, Reason, Timeout) ->
gen:stop(M, Reason, Timeout).
-rpc(M, Cmd) ->
+rpc(M, Cmd) ->
{ok, Reply} = gen:call(M, self(), Cmd, infinity),
Reply.
@@ -421,7 +457,7 @@ server_add_handler({Mod,Id}, Args, MSL) ->
Handler = #handler{module = Mod,
id = Id},
server_add_handler(Mod, Handler, Args, MSL);
-server_add_handler(Mod, Args, MSL) ->
+server_add_handler(Mod, Args, MSL) ->
Handler = #handler{module = Mod},
server_add_handler(Mod, Handler, Args, MSL).
@@ -446,7 +482,7 @@ server_add_sup_handler({Mod,Id}, Args, MSL, Parent) ->
id = Id,
supervised = Parent},
server_add_handler(Mod, Handler, Args, MSL);
-server_add_sup_handler(Mod, Args, MSL, Parent) ->
+server_add_sup_handler(Mod, Args, MSL, Parent) ->
link(Parent),
Handler = #handler{module = Mod,
supervised = Parent},
@@ -454,7 +490,7 @@ server_add_sup_handler(Mod, Args, MSL, Parent) ->
%% server_delete_handler(HandlerId, Args, MSL) -> {Ret, MSL'}
-server_delete_handler(HandlerId, Args, MSL, SName) ->
+server_delete_handler(HandlerId, Args, MSL, SName) ->
case split(HandlerId, MSL) of
{Mod, Handler, MSL1} ->
{do_terminate(Mod, Handler, Args,
@@ -511,7 +547,7 @@ split_and_terminate(HandlerId, Args, MSL, SName, Handler2, Sup) ->
%% server_notify(Event, Func, MSL, SName) -> MSL'
-server_notify(Event, Func, [Handler|T], SName) ->
+server_notify(Event, Func, [Handler|T], SName) ->
case server_update(Handler, Func, Event, SName) of
{ok, Handler1} ->
{Hib, NewHandlers} = server_notify(Event, Func, T, SName),
@@ -531,9 +567,9 @@ server_update(Handler1, Func, Event, SName) ->
Mod1 = Handler1#handler.module,
State = Handler1#handler.state,
case catch Mod1:Func(Event, State) of
- {ok, State1} ->
+ {ok, State1} ->
{ok, Handler1#handler{state = State1}};
- {ok, State1, hibernate} ->
+ {ok, State1, hibernate} ->
{hibernate, Handler1#handler{state = State1}};
{swap_handler, Args1, State1, Handler2, Args2} ->
do_swap(Mod1, Handler1, Args1, State1, Handler2, Args2, SName);
@@ -644,14 +680,14 @@ server_call_update(Handler1, Query, SName) ->
Mod1 = Handler1#handler.module,
State = Handler1#handler.state,
case catch Mod1:handle_call(Query, State) of
- {ok, Reply, State1} ->
+ {ok, Reply, State1} ->
{{ok, Handler1#handler{state = State1}}, Reply};
- {ok, Reply, State1, hibernate} ->
- {{hibernate, Handler1#handler{state = State1}},
+ {ok, Reply, State1, hibernate} ->
+ {{hibernate, Handler1#handler{state = State1}},
Reply};
{swap_handler, Reply, Args1, State1, Handler2, Args2} ->
{do_swap(Mod1,Handler1,Args1,State1,Handler2,Args2,SName), Reply};
- {remove_handler, Reply} ->
+ {remove_handler, Reply} ->
do_terminate(Mod1, Handler1, remove_handler, State,
remove, SName, normal),
{no, Reply};
@@ -686,7 +722,7 @@ report_error(_Handler, normal, _, _, _) -> ok;
report_error(_Handler, shutdown, _, _, _) -> ok;
report_error(_Handler, {swapped,_,_}, _, _, _) -> ok;
report_error(Handler, Reason, State, LastIn, SName) ->
- Reason1 =
+ Reason1 =
case Reason of
{'EXIT',{undef,[{M,F,A,L}|MFAs]}} ->
case code:is_loaded(M) of
diff --git a/lib/stdlib/src/orddict.erl b/lib/stdlib/src/orddict.erl
index 37cf0084f0..caa59099af 100644
--- a/lib/stdlib/src/orddict.erl
+++ b/lib/stdlib/src/orddict.erl
@@ -22,7 +22,7 @@
%% Standard interface.
-export([new/0,is_key/2,to_list/1,from_list/1,size/1,is_empty/1]).
--export([fetch/2,find/2,fetch_keys/1,erase/2]).
+-export([fetch/2,find/2,fetch_keys/1,erase/2,take/2]).
-export([store/3,append/3,append_list/3,update/3,update/4,update_counter/3]).
-export([fold/3,map/2,filter/2,merge/3]).
@@ -106,6 +106,23 @@ erase(Key, [{K,_}=E|Dict]) when Key > K ->
erase(_Key, [{_K,_Val}|Dict]) -> Dict; %Key == K
erase(_, []) -> [].
+-spec take(Key, Orddict) -> {Value, Orddict1} | error when
+ Orddict :: orddict(Key, Value),
+ Orddict1 :: orddict(Key, Value),
+ Key :: term(),
+ Value :: term().
+
+take(Key, Dict) ->
+ take_1(Key, Dict, []).
+
+take_1(Key, [{K,_}|_], _Acc) when Key < K ->
+ error;
+take_1(Key, [{K,_}=P|D], Acc) when Key > K ->
+ take_1(Key, D, [P|Acc]);
+take_1(_Key, [{_K,Value}|D], Acc) ->
+ {Value,lists:reverse(Acc, D)};
+take_1(_, [], _) -> error.
+
-spec store(Key, Value, Orddict1) -> Orddict2 when
Orddict1 :: orddict(Key, Value),
Orddict2 :: orddict(Key, Value).
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-31 10:59:56 +0000