diff options
Diffstat (limited to 'lib/stdlib/src/slave.erl')
| -rw-r--r-- | lib/stdlib/src/slave.erl | 92 |
1 files changed, 69 insertions, 23 deletions
diff --git a/lib/stdlib/src/slave.erl b/lib/stdlib/src/slave.erl index 9c74041f56..24fc8ce204 100644 --- a/lib/stdlib/src/slave.erl +++ b/lib/stdlib/src/slave.erl @@ -3,16 +3,17 @@ %% %% Copyright Ericsson AB 1996-2013. 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 -%% compliance with the License. You should have received a copy of the -%% Erlang Public License along with this software. If not, it can be -%% retrieved online at http://www.erlang.org/. -%% -%% Software distributed under the License is distributed on an "AS IS" -%% basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See -%% the License for the specific language governing rights and limitations -%% under the License. +%% Licensed under the Apache License, Version 2.0 (the "License"); +%% you may not use this file except in compliance with the License. +%% You may obtain a copy of the License at +%% +%% http://www.apache.org/licenses/LICENSE-2.0 +%% +%% Unless required by applicable law or agreed to in writing, software +%% distributed under the License is distributed on an "AS IS" BASIS, +%% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +%% See the License for the specific language governing permissions and +%% limitations under the License. %% %% %CopyrightEnd% %% @@ -128,7 +129,7 @@ relay1(Pid) -> %% {error, {already_running, Name@Host}} -spec start(Host) -> {ok, Node} | {error, Reason} when - Host :: atom(), + Host :: inet:hostname(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -138,8 +139,8 @@ start(Host) -> start(Host, Name, [], no_link). -spec start(Host, Name) -> {ok, Node} | {error, Reason} when - Host :: atom(), - Name :: atom(), + Host :: inet:hostname(), + Name :: atom() | string(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -147,8 +148,8 @@ start(Host, Name) -> start(Host, Name, []). -spec start(Host, Name, Args) -> {ok, Node} | {error, Reason} when - Host :: atom(), - Name :: atom(), + Host :: inet:hostname(), + Name :: atom() | string(), Args :: string(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -157,7 +158,7 @@ start(Host, Name, Args) -> start(Host, Name, Args, no_link). -spec start_link(Host) -> {ok, Node} | {error, Reason} when - Host :: atom(), + Host :: inet:hostname(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -167,8 +168,8 @@ start_link(Host) -> start(Host, Name, [], self()). -spec start_link(Host, Name) -> {ok, Node} | {error, Reason} when - Host :: atom(), - Name :: atom(), + Host :: inet:hostname(), + Name :: atom() | string(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -176,8 +177,8 @@ start_link(Host, Name) -> start_link(Host, Name, []). -spec start_link(Host, Name, Args) -> {ok, Node} | {error, Reason} when - Host :: atom(), - Name :: atom(), + Host :: inet:hostname(), + Name :: atom() | string(), Args :: string(), Node :: node(), Reason :: timeout | no_rsh | {already_running, Node}. @@ -210,7 +211,6 @@ start(Host0, Name, Args, LinkTo, Prog) -> Node :: node(). stop(Node) -> -% io:format("stop(~p)~n", [Node]), rpc:call(Node, erlang, halt, []), ok. @@ -229,7 +229,6 @@ wait_for_slave(Parent, Host, Name, Node, Args, LinkTo, Prog) -> Waiter = register_unique_name(0), case mk_cmd(Host, Name, Args, Waiter, Prog) of {ok, Cmd} -> -%% io:format("Command: ~ts~n", [Cmd]), open_port({spawn, Cmd}, [stream]), receive {SlavePid, slave_started} -> @@ -289,7 +288,11 @@ register_unique_name(Number) -> %% If the node should run on the local host, there is %% no need to use rsh. -mk_cmd(Host, Name, Args, Waiter, Prog) -> +mk_cmd(Host, Name, Args, Waiter, Prog0) -> + Prog = case os:type() of + {ose,_} -> mk_ose_prog(Prog0); + _ -> quote_progname(Prog0) + end, BasicCmd = lists:concat([Prog, " -detached -noinput -master ", node(), " ", long_or_short(), Name, "@", Host, @@ -309,6 +312,49 @@ mk_cmd(Host, Name, Args, Waiter, Prog) -> end end. +%% On OSE we have to pass the beam arguments directory to the slave +%% process. To find out what arguments that should be passed on we +%% make an assumption. All arguments after the last "--" should be +%% skipped. So given these arguments: +%% -Muycs256 -A 1 -- -root /mst/ -progname beam.debug.smp -- -home /mst/ -- -kernel inetrc '"/mst/inetrc.conf"' -- -name test@localhost +%% we send +%% -Muycs256 -A 1 -- -root /mst/ -progname beam.debug.smp -- -home /mst/ -- -kernel inetrc '"/mst/inetrc.conf"' -- +%% to the slave with whatever other args that are added in mk_cmd. +mk_ose_prog(Prog) -> + SkipTail = fun("--",[]) -> + ["--"]; + (_,[]) -> + []; + (Arg,Args) -> + [Arg," "|Args] + end, + [Prog,tl(lists:foldr(SkipTail,[],erlang:system_info(emu_args)))]. + +%% This is an attempt to distinguish between spaces in the program +%% path and spaces that separate arguments. The program is quoted to +%% allow spaces in the path. +%% +%% Arguments could exist either if the executable is excplicitly given +%% (through start/5) or if the -program switch to beam is used and +%% includes arguments (typically done by cerl in OTP test environment +%% in order to ensure that slave/peer nodes are started with the same +%% emulator and flags as the test node. The return from lib:progname() +%% could then typically be '/<full_path_to>/cerl -gcov'). +quote_progname(Progname) -> + do_quote_progname(string:tokens(to_list(Progname)," ")). + +do_quote_progname([Prog]) -> + "\""++Prog++"\""; +do_quote_progname([Prog,Arg|Args]) -> + case os:find_executable(Prog) of + false -> + do_quote_progname([Prog++" "++Arg | Args]); + _ -> + %% this one has an executable - we assume the rest are arguments + "\""++Prog++"\""++ + lists:flatten(lists:map(fun(X) -> [" ",X] end, [Arg|Args])) + end. + %% Give the user an opportunity to run another program, %% than the "rsh". On HP-UX rsh is called remsh; thus HP users %% must start erlang as erl -rsh remsh. |