From: "Mehr, Assaph (Assaph)" <assaph@...>
Date: 2004-02-10T11:24:41+09:00
Subject: Re: spawning processes from Ruby/TK

One more note: it's on windows, so:
	exec("#{cmd % [file]}") if fork == nil
Doesn't work. I get a message box saying: 'fork' Resource temporarily
unavailable - fork(2).

Cheers,
Assaph

-----Original Message-----
From: Mehr, Assaph (Assaph) 
Sent: Tuesday, 10 February 2004 13:22 PM
To: ruby-talk ML
Subject: spawning processes from Ruby/TK


Hi,

I need to launch an external process from a Tk app. I have a list-box of
file names that should be processes as follows:

    listbox.bind('Double-Button-1') {
        file = listbox.get(listbox.curselection)
        errors += `#{cmd % [file]}`
    }

This causes a repeated error message:

C:\bin\cygwin\bin\ruby.exe: *** unable to remap
C:\bin\cygwin\bin\tk84.dll to same address as parent(0x8C40000) !=
0x8C50000 4274332 [main] ruby 2584 sync_with_child: child 3260(0x280)
died before initialization with status code 0x1 4274659 [main] ruby 2584
sync_with_child: *** child state child loading dlls

So do 'system' and 'IO.popen' calls. 'exec' works, but of course
terminates the app. Any ideas what's wrong?

Cheers,
Assaph