diff options
Diffstat (limited to 'lib/kernel/src/global.erl')
| -rw-r--r-- | lib/kernel/src/global.erl | 30 |
1 files changed, 26 insertions, 4 deletions
diff --git a/lib/kernel/src/global.erl b/lib/kernel/src/global.erl index 081e7e2f93..6343acd000 100644 --- a/lib/kernel/src/global.erl +++ b/lib/kernel/src/global.erl @@ -1,7 +1,7 @@ %% %% %CopyrightBegin% %% -%% Copyright Ericsson AB 1996-2010. All Rights Reserved. +%% Copyright Ericsson AB 1996-2011. 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 @@ -113,8 +113,9 @@ syncers = [] :: [pid()], node_name = node() :: node(), the_locker, the_registrar, trace, - global_lock_down = false + global_lock_down = false :: boolean() }). +-type state() :: #state{}. %%% There are also ETS tables used for bookkeeping of locks and names %%% (the first position is the key): @@ -399,6 +400,9 @@ info() -> %%%----------------------------------------------------------------- %%% Call-back functions from gen_server %%%----------------------------------------------------------------- + +-spec init([]) -> {'ok', state()}. + init([]) -> process_flag(trap_exit, true), _ = ets:new(global_locks, [set, named_table, protected]), @@ -542,6 +546,11 @@ init([]) -> %% sent by each node to all new nodes (Node becomes known to them) %%----------------------------------------------------------------- +-spec handle_call(term(), {pid(), term()}, state()) -> + {'noreply', state()} | + {'reply', term(), state()} | + {'stop', 'normal', 'stopped', state()}. + handle_call({whereis, Name}, From, S) -> do_whereis(Name, From), {noreply, S}; @@ -621,6 +630,9 @@ handle_call(Request, From, S) -> %% init_connect %% %%======================================================================== + +-spec handle_cast(term(), state()) -> {'noreply', state()}. + handle_cast({init_connect, Vsn, Node, InitMsg}, S) -> %% Sent from global_name_server at Node. ?trace({'####', init_connect, {vsn, Vsn}, {node,Node},{initmsg,InitMsg}}), @@ -782,6 +794,11 @@ handle_cast(Request, S) -> "handle_cast(~p, _)\n", [Request]), {noreply, S}. +%%======================================================================== + +-spec handle_info(term(), state()) -> + {'noreply', state()} | {'stop', term(), state()}. + handle_info({'EXIT', Locker, _Reason}=Exit, #state{the_locker=Locker}=S) -> {stop, {locker_died,Exit}, S#state{the_locker=undefined}}; handle_info({'EXIT', Registrar, _}=Exit, #state{the_registrar=Registrar}=S) -> @@ -1122,12 +1139,17 @@ do_whereis(Name, From) -> send_again({whereis, Name, From}) end. +-spec terminate(term(), state()) -> 'ok'. + terminate(_Reason, _S) -> true = ets:delete(global_names), true = ets:delete(global_names_ext), true = ets:delete(global_locks), true = ets:delete(global_pid_names), - true = ets:delete(global_pid_ids). + true = ets:delete(global_pid_ids), + ok. + +-spec code_change(term(), state(), term()) -> {'ok', state()}. code_change(_OldVsn, S, _Extra) -> {ok, S}. @@ -1955,7 +1977,7 @@ delete_lock(Ref, S0) -> Locks = pid_locks(Ref), F = fun({ResourceId, LockRequesterId, PidRefs}, S) -> {Pid, _RPid, Ref} = lists:keyfind(Ref, 3, PidRefs), - remove_lock(ResourceId, LockRequesterId, Pid, PidRefs, true,S) + remove_lock(ResourceId, LockRequesterId, Pid, PidRefs, true, S) end, lists:foldl(F, S0, Locks). |