diff options
Diffstat (limited to 'lib/stdlib/src/gen.erl')
| -rw-r--r-- | lib/stdlib/src/gen.erl | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/lib/stdlib/src/gen.erl b/lib/stdlib/src/gen.erl index 5d803091b6..42555aedd7 100644 --- a/lib/stdlib/src/gen.erl +++ b/lib/stdlib/src/gen.erl @@ -36,7 +36,7 @@ %%----------------------------------------------------------------- -type linkage() :: 'link' | 'nolink'. --type emgr_name() :: {'local', atom()} | {'global', term()}. +-type emgr_name() :: {'local', atom()} | {'global', term()} | {via, atom(), term()}. -type start_ret() :: {'ok', pid()} | 'ignore' | {'error', term()}. @@ -53,7 +53,7 @@ %% start(GenMod, LinkP, Name, Mod, Args, Options) %% GenMod = atom(), callback module implementing the 'real' fsm %% LinkP = link | nolink -%% Name = {local, atom()} | {global, term()} +%% Name = {local, atom()} | {global, term()} | {via, atom(), term()} %% Args = term(), init arguments (to Mod:init/1) %% Options = [{timeout, Timeout} | {debug, [Flag]} | {spawn_opt, OptionList}] %% Flag = trace | log | {logfile, File} | statistics | debug @@ -158,9 +158,12 @@ call(Name, Label, Request, Timeout) exit(noproc) end; %% Global by name -call({global, _Name}=Process, Label, Request, Timeout) - when Timeout =:= infinity; - is_integer(Timeout), Timeout >= 0 -> +call(Process, Label, Request, Timeout) + when ((tuple_size(Process) == 2 andalso element(1, Process) == global) + orelse + (tuple_size(Process) == 3 andalso element(1, Process) == via)) + andalso + (Timeout =:= infinity orelse (is_integer(Timeout) andalso Timeout >= 0)) -> case where(Process) of Pid when is_pid(Pid) -> Node = node(Pid), @@ -274,6 +277,7 @@ reply({To, Tag}, Reply) -> %%% Misc. functions. %%%----------------------------------------------------------------- where({global, Name}) -> global:whereis_name(Name); +where({via, Module, Name}) -> Module:whereis_name(Name); where({local, Name}) -> whereis(Name). name_register({local, Name} = LN) -> @@ -287,8 +291,16 @@ name_register({global, Name} = GN) -> case global:register_name(Name, self()) of yes -> true; no -> {false, where(GN)} + end; +name_register({via, Module, Name} = GN) -> + case Module:register_name(Name, self()) of + yes -> + true; + no -> + {false, where(GN)} end. + timeout(Options) -> case opt(timeout, Options) of {ok, Time} -> |