I'm writing a program that will be using multiple threads to handle
network activity on multiple ports in a responsive way. The treads
will all need access to some shared data, so I'm using an MVar. So far
so good. The problem is that passing the MVar around everywhere is
kind of a pain, so I was h
On Wed, Nov 16, 2005 at 11:51:19AM -0500, Kurt Hutchinson wrote:
> I have to perform another runReaderT when forking? Or is there a way
> to get the ReaderT environment automatically carried over to the newly
> created Set B thread?
This is an unavoidable pain as far as I know. It would be nice i
On Wed, Nov 16, 2005 at 09:45:17AM -0800, Andrew Pimlott wrote:
> On Wed, Nov 16, 2005 at 11:51:19AM -0500, Kurt Hutchinson wrote:
> > I have to perform another runReaderT when forking? Or is there a way
> > to get the ReaderT environment automatically carried over to the newly
> > created Set B th
On Wed, Nov 16, 2005 at 07:20:48PM +0100, Tomasz Zielonka wrote:
> On Wed, Nov 16, 2005 at 09:45:17AM -0800, Andrew Pimlott wrote:
> > On Wed, Nov 16, 2005 at 11:51:19AM -0500, Kurt Hutchinson wrote:
> > > I have to perform another runReaderT when forking? Or is there a way
> > > to get the ReaderT
On Wed, Nov 16, 2005 at 10:53:17AM -0800, Andrew Pimlott wrote:
> On Wed, Nov 16, 2005 at 07:20:48PM +0100, Tomasz Zielonka wrote:
> > I think it wouldn't be possible using only methods in MonadIO.
>
> Here's what I had in mind for forkProcess. Recall that the fork syscall
> returns 0 to the chil
Hello Kurt,
Wednesday, November 16, 2005, 7:51:19 PM, you wrote:
KH> I'm writing a program that will be using multiple threads to handle
KH> network activity on multiple ports in a responsive way. The treads
KH> will all need access to some shared data, so I'm using an MVar. So far
KH> so good. T
Kurt,
There are basically two ways of doing that, namely monad transformers
and implicit parameters (we actually use both techniques in lambdabot).
Implicit parameters save you a lot of conversions or explicit passing of
variables because you only need one monad (the IO monad); however they
are gh
