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Message |
< Erlang ~ problem with spawn |
| klm |
 Posted: Sun May 24, 2009 9:01 pm |
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User
Joined: 11 May 2009
Posts: 18
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hey !
I'm trying to launch a function in another files with the function spawn
I don't know why it did'nt works
maybe because it's not the same module
Gui_pid = spawn(?Gui, gui:start, [Self,Name,Position]),
How can I use the function spawn ?
thanks |
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| ates |
| Posted: Sun May 24, 2009 11:23 pm |
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Joined: 23 May 2009
Posts: 3
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May be follows will help:
$ cat x.erl
-module(x).
-export([start/1]).
start(Msg) ->
io:format("Hello from x module: ~p~n", [Msg]).
$ cat y.erl
-module(y).
-export([start/0]).
start() ->
spawn(x, start, ["Hello"]).
$ erl
Erlang R13B (erts-5.7.1) [source] [smp:2:2] [rq:2] [async-threads:0] [kernel-poll:false]
Eshell V5.7.1 (abort with ^G)
1> y:start().
Hello from x module: "Hello"
<0.35.0> |
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| klm |
| Posted: Mon May 25, 2009 10:45 am |
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User
Joined: 11 May 2009
Posts: 18
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yes it works !
it was easy in fact.
I begin in this language and I've some problems sometimes which are not really big problems finally. |
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| Mazen |
| Posted: Thu May 28, 2009 6:41 pm |
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User
Joined: 20 Jul 2006
Posts: 164
Location: London
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klm; the real error is that you are using module:function it should be module,function..
so instead of:
Gui_pid = spawn(?Gui, gui:start, [Self,Name,Position]),
use:
Gui_pid = spawn(?Gui, gui, start, [Self,Name,Position]),
see this link for more info:
http://www.erlang.org/doc/man/proc_lib.html |
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