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-rw-r--r--lib/stdlib/src/pool.erl27
1 files changed, 21 insertions, 6 deletions
diff --git a/lib/stdlib/src/pool.erl b/lib/stdlib/src/pool.erl
index 7f5f23e26d..a5eb191ab2 100644
--- a/lib/stdlib/src/pool.erl
+++ b/lib/stdlib/src/pool.erl
@@ -1,7 +1,7 @@
%%
%% %CopyrightBegin%
%%
-%% Copyright Ericsson AB 1996-2009. 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
@@ -52,11 +52,16 @@
%% Start up using the .hosts.erlang file
--spec start(atom()) -> [node()].
+-spec start(Name) -> Nodes when
+ Name :: atom(),
+ Nodes :: [node()].
start(Name) ->
start(Name,[]).
--spec start(atom(), string()) -> [node()].
+-spec start(Name, Args) -> Nodes when
+ Name :: atom(),
+ Args :: string(),
+ Nodes :: [node()].
start(Name, Args) when is_atom(Name) ->
gen_server:start({global, pool_master}, pool, [], []),
Hosts = net_adm:host_file(),
@@ -71,7 +76,8 @@ start(Name, Args) when is_atom(Name) ->
get_nodes() ->
get_elements(2, get_nodes_and_load()).
--spec attach(node()) -> 'already_attached' | 'attached'.
+-spec attach(Node) -> 'already_attached' | 'attached' when
+ Node :: node().
attach(Node) ->
gen_server:call({global, pool_master}, {attach, Node}).
@@ -82,11 +88,17 @@ get_nodes_and_load() ->
get_node() ->
gen_server:call({global, pool_master}, get_node).
--spec pspawn(module(), atom(), [term()]) -> pid().
+-spec pspawn(Mod, Fun, Args) -> pid() when
+ Mod :: module(),
+ Fun :: atom(),
+ Args :: [term()].
pspawn(M, F, A) ->
gen_server:call({global, pool_master}, {spawn, group_leader(), M, F, A}).
--spec pspawn_link(module(), atom(), [term()]) -> pid().
+-spec pspawn_link(Mod, Fun, Args) -> pid() when
+ Mod :: module(),
+ Fun :: atom(),
+ Args :: [term()].
pspawn_link(M, F, A) ->
P = pspawn(M, F, A),
link(P),
@@ -95,6 +107,9 @@ pspawn_link(M, F, A) ->
start_nodes([], _, _) -> [];
start_nodes([Host|Tail], Name, Args) ->
case slave:start(Host, Name, Args) of
+ {error, {already_running, Node}} ->
+ io:format("Can't start node on host ~w due to ~w~n",[Host, {already_running, Node}]),
+ [Node | start_nodes(Tail, Name, Args)];
{error, R} ->
io:format("Can't start node on host ~w due to ~w~n",[Host, R]),
start_nodes(Tail, Name, Args);