[javaflow] Continuation.startSuspendedWith(Runnable)

[Kohsuke Kawaguchi <kk...@kohsuke.org>]

Torsten,

While implementing the workflow engine, I found that it's convenient to 
be able to create a Continuation without actually executing it. This is 
analogous to creating a thread in a suspended state.

While this can be easily emulated by wrapping the Runnable into the 
following Runnable,

	new Runnable() {
		public void run() {
			Continuation.suspend();
			realTarget.run();
		}
	}

it's bit convenient and faster/easier to do so in the javaflow itself, 
because all I need to do is:

         return new Continuation(new StackRecorder(target));

In Win32 thread API one can create a thread in a suspended state, so at 
some people seem to find that this is a generally useful feature. OTOH, 
POSIX thread API doesn't have the equivalent AFAIK, nor 
java.lang.Thread. So I'm not quite sure if this code should live in 
javaflow or I should keep it on my side.

So I don't feel strongly either way, but if you are OK with putting this 
change into javaflow, just because it's easier than the other approach.

-- 
Kohsuke Kawaguchi

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Re: [javaflow] Continuation.startSuspendedWith(Runnable)

[Torsten Curdt <tc...@apache.org>]

On 13.08.2005, at 23:47, Kohsuke Kawaguchi wrote:

>
> Torsten,
>
> While implementing the workflow engine, I found that it's  
> convenient to be able to create a Continuation without actually  
> executing it. This is analogous to creating a thread in a suspended  
> state.
>
> While this can be easily emulated by wrapping the Runnable into the  
> following Runnable,
>
>     new Runnable() {
>         public void run() {
>             Continuation.suspend();
>             realTarget.run();
>         }
>     }
>
> it's bit convenient and faster/easier to do so in the javaflow  
> itself, because all I need to do is:
>
>         return new Continuation(new StackRecorder(target));

This definitely looks nicer.
But I am not sure. :-/

...can you please send me the diff
off-list?

cheers
--
Torsten