Hi again, I have tried to play around with MVar today, but still... I did not see how to synchronize MVar without the help of forkIO, and then explicitly call yield :: IO (). But then, if I use forkIO I will create "daemon threads" that will cause my program to terminates immediately (back to the original problem).
I attached the source code to this email. ps: If you can tell the depth of my understanding of concurrent Haskell from my code, please do not hesitate to evaluate it (Eg. am I using MVar correctly? Any better method? etc.), since I am really new to concurrent Haskell. Thanks. Again, thank you for the help. Sincerely, Dennis Sidharta --- Sven Panne <[EMAIL PROTECTED]> wrote: > Dennis Sidharta wrote: > > [ problems with concurrent Haskell ] > > I can see two problems in your code: > > * forkIO creates "daemon threads", so the program > terminates immediately. > > * Chan is an unbounded channel, so you won't get a > "ping pong", which > is probably what you expected. MVar is your > friend here. > > See > http://haskell.org/ghc/docs/latest/html/base/Control.Concurrent.html > > Cheers, > S. > > __________________________________ Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software http://sitebuilder.yahoo.com
mySource.hs
Description: mySource.hs
