Ruby Programming Language :: select([]) method


	select([]) method Hey all I cam across a new method: select([], [], [], []) where the objects in the select parentheses are arrays. But what does this exactly do? I could not find ANY documentation on it. The original code is: ready = select([@irc, $stdin], nil, nil, nil) Any help please? ari -------------------------------------------------------\| ~ Ari crap my sig won't fit On Thu, May 31, 2007 at 11:34:57AM +0900, Ari Brown wrote: > Hey all > I cam across a new method: > select([], [], [], []) > where the objects in the select parentheses are arrays. > But what does this exactly do? I could not find ANY documentation on > it. The original code is: > ready = select([@irc, $stdin], nil, nil, nil) > Any help please? Kernel#select is very poorly documented in ri. Try this instead: http://www.rubycentral.com/book/ref_m_kernel.html#Kernel.select On Thursday 31 May 2007 02:34, Ari Brown wrote: > Hey all > I cam across a new method: > select([], [], [], []) > where the objects in the select parentheses are arrays. > But what does this exactly do? I could not find ANY documentation on > it. The original code is: > ready = select([@irc, $stdin], nil, nil, nil) > Any help please? > ari > -------------------------------------------------------\| > ~ Ari > crap my sig won't fit it's just wraper for c / linux select you can try man select if you have libc documentation -- Marcin Raczkowski --- Friends teach what you should know Enemies Teach what you have to know On 5/31/07, Ari Brown <a@aribrown.com> wrote: > Hey all > I cam across a new method: > select([], [], [], []) > where the objects in the select parentheses are arrays. > But what does this exactly do? I could not find ANY documentation on > it. The original code is: > ready = select([@irc, $stdin], nil, nil, nil) I agree with other comments, the documentation for select is pretty bad. The most simple way to use it is like this: svrs = IO.select([my_fd], nil, nil, 0) svrs[0].each { \|io\| puts io.readline } -- Felipe Contreras In a nutshell, select() is a system call for use when you have multiple IO events pending, and you want to handle the first one that occurs. So for instance if you have three network connections, and you need wait until data comes in on one of them, you could use select(). -- Avdi On May 31, 2007, at 10:12 AM, Felipe Contreras wrote: - Hide quoted text - > On 5/31/07, Ari Brown <a@aribrown.com> wrote: >> Hey all >> I cam across a new method: >> select([], [], [], []) >> where the objects in the select parentheses are arrays. >> But what does this exactly do? I could not find ANY documentation on >> it. The original code is: >> ready = select([@irc, $stdin], nil, nil, nil) > I agree with other comments, the documentation for select is pretty > bad. > The most simple way to use it is like this: > svrs = IO.select([my_fd], nil, nil, 0) > svrs[0].each { \|io\| puts io.readline } Alright, thanks everyone! This really cleared it up, and now i learned like 800 new things about ruby. BTW, the link that was tossed was definitely a great link. Thanks! ari --------------------------------------------\| If you're not living on the edge, then you're just wasting space.