[2421] in java-interest
Re: polling connections
daemon@ATHENA.MIT.EDU (Mike Christiansen)
Sun Oct 1 14:58:02 1995
Date: Sun, 1 Oct 1995 17:54:19 +0000
From: Mike Christiansen <mikec@metronet.com>
To: andrewfg@aifh.ed.ac.uk
Cc: java-interest@java.sun.com
On 29 Sep 95 at 15:43, Larry Reu wrote:
> Date: Fri, 29 Sep 1995 15:43:28 -0700 (PDT)
> From: Larry Reu <larryr@CyberGate.COM>
> To: java-interest@java.sun.com
> Subject: polling connections
> Is there any way to "poll" a series of connections in Java. In UNIX
> I can have a set of open sockets and use poll() on the set of file
> descriptors to wait for a connection which has data to read.
>
> I need to do something similar within Java. I don't see a way to
> get the underlying fd (UNIX file-descriptor) from the
> java.net.Socket class. Is there a way to do this with the existing
> classes or do I need to implement my own (using native methods) ?
I beleive that you are suppose to spawn a single thread per
connection. From a design POV you can create a single instance of a
server object and each instance serves its own connection. Much
better than using the "select" apporach.
>
> FYI:
> This will be an internal tool on Solaris and I'm currently using the
> preBeta1 tools. Experience has taught us that for the large number
> of connections we use the Solaris thread package was not up to using
> a thread per connection thus we switched to a polling method. So
> without testing I'm working under the assumption that the Java
> threads will also not perform well thus the need for setting up a
> thread (or set of) which will poll a set of connections.
>
Can't speak on this one. Anyone at Sun wish to step in?
mike
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